重修复习
Passage 1
很久以前,爱苹果装饰花园作为观赏植物。工厂的黄色小花儿不是很艳丽,但它美丽的水果,圆形,光滑,闪亮,亮红色或黄色,因为它成熟。它是美丽而有毒,或者说大多数人信了。其他人认为它有神奇的力量导致的爱。早期的西班牙探险家发现这种植物野外生长的南部和中美洲,运回欧洲。这些植物在花园出现在意大利早在1554年。他们一定是那种熊黄色水果因为意大利人称为植物“pomi d 'oro”,或苹果的黄金。到1750年,整个欧洲植物生长是一个奇怪的观赏植物。一些人甚至大胆足以吃水果。
1781年在美国,托马斯·杰斐逊和爱吃苹果,但很少跟在他后面。三十年后,爱苹果作为食物在路易斯安那州,到1835年,少数人在北部各州愿意尝试。但直到1900年,有许多人仍然相信,这些黄金“苹果”是有毒的。
尽管人们不吃这种植物的果实,他们喜欢看着它在他们的花园。后来当他们得知既美味又对他们好,他们把爱苹果工厂从花园到菜园。他们学会了叫它一个新的名字“西红柿”。
黄金的苹果已经失去了在花园。但今天番茄,生长在数百个品种,是三个最受欢迎的蔬菜之一在美国。
Long ago, the love apple decorated flow er gardens as an ornamental plant. The plant’s small yellow flowers were not very showy, but it bore beautiful fruit, round, smooth, and shiny, which turned bright red or yellow as it ripened. It was beautiful but poisonous, or so most people believed. Other people believed it had magic powers to cause love.
Early Spanish explorers who found this plant growing wild in South and Central America, carried it back to Europe. These plants appeared in gardens in Italy as early as 1554. They must have been the kin d that bears yellow fruit because the Italians called the plant “pomi d’oro”, or apple of gold. By 1750, the plant was grown as a curious ornamental plant throughout Europe. Some people were even daring enough to eat the fruit.
In 1781 in America, Thomas Jefferson raised and ate love apples, but few followed his example. Thirty years later, the love apples were used as food in Louisiana, and by 1835, a few people in the northern states were willing to experiment with them too. But even as late as 1900, ther e were people who still believed that these “apples of gold” were poisonous.
Although people did not eat the fruit of this plant, they liked looking at it in their gardens. Later when they learned it was both good-tasting and good for them, they moved the love apple plant from the flower garden to the vegetable garden. They learned to call it by a new name “tomato”.
The apple of gold has lost its place in the flower garden. But today the tomato, grown in hundreds of varieties, is one of the three most popular vegetables in the United States.
1. Which statement is implied but not directly stated in the passage? A
A. Some people are afraid to try new things.
一些人害怕尝试新事物
B. All poisonous fruits are really tomatoes.
C. All poisonous fruits are bright and colorful.
D. Northerners are more daring than Southerners.
2. On the whole, the article tells about . C
A. poisonous fruits in America
B. Indians who are very curious
C. the history of the tomato plant
西红柿的历史
D. the fruits eaten by Thomas Jefferson
3. Which statement does the article lead you to believe? D
A. Early Spanish explorers found wild plants in Italy.
B. People who eat fruit are daring.
C. The Northerners are brave eaters.
D. Tomatoes are one of our most important crops.
西红柿是我们最重要的作物之一
4. Why did people raise this plant in their gardens? B
A. They liked eating it.
B. They enjoyed looking at it.
人们喜欢看到它
C. They thought gold would grow.
D. It was the only plant they had.
5. Which statement seems true according to the passage? A
A. What is not popular today may be popular tomorrow.
不受欢迎的今天是什么明天可能是受欢迎的。
B. The apple of gold belongs only in flower gardens.
C. Thomas Jefferson ate all his ornamental plants.
D. It was the Americans who first ate tomatoes.
答案：Passage 1 A C D B A
Passage 2
罗伯特。春天,19世纪的伪造者,非常擅长于他的职业,他可以通过出售假的签名让他生活了15年的著名的美国人。春天出生在英格兰在1813年和1858年来到费城开书店。起初他通过出售他的小,但真正的收藏的美国早期的亲笔签名。发现他的能力在复制的笔迹,他开始模仿签名的乔治·华盛顿和本·富兰克林和写在标题页的旧书。教训检测的机会,他派他的伪造英国和加拿大出售和流通。
伪造者很难销售他们的产品。伪造者不能方法受人尊敬的买家但必须处理那些没有多少知识。伪造者有很多方法让他们的工作变得真实了。例如,他们买旧书岁使用标题页的纸,和他们可以对纸张和油墨的化学物质。
在春天的时候,对美国南北战争后,英国还是喜欢南方各州,所以春天发明了一种受人尊敬的少女称为范妮杰克逊小姐,夫人唯一的“石墙”杰克逊将军的女儿。好几年芬妮小姐的金融问题迫使她出售大量的手稿和信件属于她著名的父亲。春天已经很难满足工作需求。所有这些活动并没有阻止弹簧形式死于贫穷,让目光敏锐的专家的艰巨任务分离他的伪造。
Robert Spring, a 19th century forger, was so good at his profession that he was able to make his living for 15 years by selling false signatures of famous Americans. Spring was born in England in 1813 and arrived in Philadelphia in 1858 to open a bookstore. At first he prospered by selling his small but genuine collection of early U.S. autographs. Discovering his ability at copying handwriting, he began imitating signatures of George Washington and Ben Franklin and
writing them on the title pages of old books. To lesson the chance of detection, he sent his forgeries to England and Canada for sale and circulation.
Forgers have a hard time selling their products. A forger can’t approach a respectable buyer but must deal with people who don’t have much knowledge in the field. Forgers have many ways to make their work look real. For example, they buy old books to use the aged paper of the title page, and they can treat paper and ink with chemicals.
In Spring’s time, right after the Civil War, Britain was still fond of the Southern states, so Spring invented a respectable maiden lady known as Miss Fanny Jackson, the only daughter of General “Stonewall” Jackson. For several years Miss Fanny’s financial problems forced her to sell a great number of letters and manuscripts belonging to her famous father. Spring had to work very hard to satisfy the demand. All this activity did not prevent Spring form dying in poverty, leaving sharp-eyed experts the difficult task of separating his forgeries from the originals.
1.Why did Spring sell his false autographs in England and Canada? B
为什么春天出售他的假签名在英格兰和加拿大?
A. There was a greater demand there than in America.
B. There was less chance of being detected there.（在这里不被发现的可能性。）
C. Britain was Spring’s birthplace.
D. The prices were higher in England and Canada.
2. After the Civil War, there was a great demand in Britain for . B
南北战争后,在英国是一个伟大的需求
A. Southern money
B. Southern manuscripts and letters
南部手稿和信件
C. signatures of George Washington and Ben Franklin
D. Civil War battle plans
3. Robert Spring spent 15 years . B罗伯特春天花了15年
A. running a bookstore in Philadelphia
B. as a forger 作为一个铁匠
C. corresponding with Miss Fanny Jackson
D. as a respectable dealer
4. According to the passage, forgeries are usually sold to . C根据短文,伪造通常卖给
A. sharp-eyed experts
B. book dealers
C. persons w ho aren’t experts人不是专家
D. owners of old books
5. Who was Miss Fanny Jackson? D范妮杰克逊小姐是谁?
A. the only daughter of General “Stonewall” Jackson.
B. a little-known girl who sold her father’s papers to Robert Spring.
C. Robert Spring’s daughter.
D. an imaginary person created by Spring.一个虚构的人创建的春天。
答案：Passage 2 B B B C D
Passage 3
工业社会在过去的两个世纪里一直非常有生产力。经济进步显著。在相对短的时间内,人民生活状况发生的变化比在几千年之前。
从大约公元前8000年。农业时代,当人类开始,到公元1776年美国革命的开始,人们几乎没有增长富裕。1776年的美国人使用相同的能源的罗马人公元1古罗马人与200年前的美国人可能差不多一天短距离的旅行。两个有相同的年收入和相同的寿命。
在过去的200年里,世界人口增加了6倍,一年一度的全球产出增加了80倍,一个人可以旅行的距离上涨了1000倍。还有很多最新进展在艺术、文化、学习、和科学。这种变化导致了高速率的生产和经济的增长。经济学家担心,在未来的100年到150年,地球的资源将会变得非常稀缺。他们的担忧在一定程度上是合理的,但我们不应该害怕。工业文明适应新知识。通过推进知识,我们不仅创造新形式的资源,但我们也找到节约使用它们的方法。先进的现代知识可以养活世界饥饿的人们,改善他们的生活标准。
The industrial societies have been extremely productive during the last two centuries. The economic advance has been remarkable. During this relatively short period of time, greater changes in people’s living conditions have occurred than in the thousands of years which preceded.
From about 8000 B.C., when the agricultural era of the human race began, to 1776 A.D., the beginning of the American Revolution, people grew hardly any richer at all. The Americans of 1776 used the same energy sources as the Romans of 1 A.D. Both the ancient Romans and the Americans of 200 years ago could travel about the same short distance in a day. Both had about the same annual income and the same life span.
During the past 200 years the world population has increased 6 times, the annual world output has increased 80 times, and the distance a person can travel has gone up 1,000 times. There has also been much recent progress in art, culture, learning, and science. Such changes have led to a high rate of production and growth of the economy.
Ec onomists fear that within the next 100 to 150 years, the earth’s resources will become very scarce. Their fears are partly justified, but we should not be afraid. Industrial civilization adapts to new knowledge. By advancing knowledge, we not only create new forms of resources, but we also find ways to economize their use. Advanced modern knowledge can feed the hungry people of the world and improve their standard of living.
1. During the last two centuries . D在过去的两个世纪
A. the industrial world has produced a large amount of material
B. the economic progress has been worthy of notice
C. greater changes in people’s living conditions have taken place
D. all of the above所有上面的
2. At the beginning of the American Revolution . D在美国革命的开始
A. the Americans were much richer than the ancient Romans
B. the Americans didn’t use the same energy as the ancient Romans
C. the Americans had more advanced methods of transportation than the ancient Romans
D. the Americans lived the same number of years as the ancient Romans美国人住相同数量的年,古罗马人
3. In paragraph 3 “such changes” refer to all of the following except . A在第三项“这些变化”指所有的除外
A. the human life span人类的寿命
B. the world population
C. transportation
D. the annual world output
4. Economists are afraid that the earth’s resources will . C经济学家们担心地球的资源
A. be completely used up
B. become more and more expensive
C. become very difficult to find变得非常困难
D. be wasted in large quantities
5. “Industrial civilization adapts to new knowledge” (in the 4th paragraph) means . B
A. industrial civilization needs new knowledge
B. industrial civilization changes to fit into new knowledge
C. new knowledge helps to develop industrial civilization
D. industrial civilization creates new knowledge
答案：Passage 3 D D A C B
Passage 4
Thomas Jefferson was inaugurated on March 4, 1801. He was the first president to take the oath of office in the nation’s permanent capital, Washington D.C. Although Washington was a new city, it was already f amiliar to President Jefferson. In fact, Jefferson had helped plan the capital’s streets and public buildings. Besides being a city planner and architect, the new president was a writer, a scientist, and the inventor of several gadgets and tools.
After his inauguration, Jefferson moved into the President Palace. The Palace was more than a home, it contained offices for the President and some of his staff and advisors. It also included dining and reception rooms, where the President could entertain congressmen. However, President Jefferson did not give many formal parties. This was partly because there was no First Lady; Jefferson’s wife had died in 1782. But it was also because Jefferson liked to live in a simple fashion. Once, he showed up for an important meeting wearing old clothes and down-at-the-heels slippers! Neither Washington nor Adams would ever have dressed so casually.
Jefferson was different from the first two Presidents in other ways, too. He disagreed with them about how the country should be run, and about what part a President should play in running it.
1. Which of the following statements about Washington D.C. can be correctly inferred from the
passage? C
A. The President Palace was not located there.
B. It contained many old buildings in 1801.
C. It was not the first capital of the United States.
D. Thomas Jefferson was a newcomer there in 1801.
2. According to the passage, Thomas Jefferson was all of the following except . D
A. a scientist
B. a writer
C. an architect
D. a carpenter
3. According to the passage, the President Palace was built to be . B
A. a hotel for visiting kings
B. an office building and home
C. a museum for colonial American tools and gadgets
D. a meeting place for newspaper reporters
4. It can be inferred that one reason Thomas Jefferson did not entertain very often in Washington
was because . A
A. he did not enjoy elaborate parties
B. he and his wife did not have appropriate clothes
C. the food in the area was not good
D. he could not understand foreign languages
5. It can be inferred from the passage that George Washington and John Adams both . B
A. lived for a long time in Washington D.C.
B. were rather formal gentlemen
C. traveled to many foreign countries
D. encouraged Jefferson to run for the Presidency
答案：Passage 4 C D B A B
Questions 41 to 45 are base on the following passage:
Albert Einstein had a great effect on science and history, greater than only a few other men have achieved. An American university president once commented that Einstein had created a new outlook, a new view of the universe. It may be some time before the average mind understands fully the identity of time and space and so on --- but even ordinary men understand now that the universe is something larger than ever thought before.
By 1914 the young Einstein had gained world fame. He accepted the offer to become a professor at the Prussian Academy of Science in Berlin. He had few duties, little teaching and unlimited opportunities for study, but soon his peace and quiet were broken by the First World War.
Einstein hated violence. The misery of war affected him deeply, and he sat unhappily in his
office doing little. He lost interest in his research. Only when peace came in 1918 was he able to get back to work.
In the years following World War I honors were increasingly heaped on him. He became the head of the Kaiser Whihem Institute of Theoretical Physics. In 1921 he won the Nobel Prize, and he was honored in Germany until the rise of Naziism when he was driven from Germany because he was a Jew.
41. The main idea of the first paragraph is ______. C
A. the time when people know Einstein
B. the feeling of an American college president
C. the change in human thought produced by Einstein
D. the difficulty of Einstein’s thought to teachers
42. According to the American university president, ________. D
A. everyone understands Einstein’s theory today
B. Einstein achieved more than any other scientists in history
C. the theory of relativity can be quickly learned by everyone
D. our ideas about the universe are different today because of Einstein
43. According to paragraph 2, Albert Einstein ______. C
A. was a famous chemist
B. headed a research institute
C. was famous in the world
D. enjoyed reading about war
44. According to the passage Einstein did his greatest work _______. B
A. during World War I
B. when he was young
C. when Naziism rose
D. between 1906-1915
45. It may be concluded that ________. C
A. Albert Einstein was forced to serve in the German army
B. Albert Einstein had no other interests besides science
C. Germans usually have a high respect for science
D. his reputation was ruined because of his work during World War I
41-45 CDCBC
Questions 46 to 50 are base on the following passage:
The often criticized child of the industrial age, advertising, has grown as societies have become more industrialized and, therefore, more commercialized. No modern industry or company can survive without advertising; it is the vital link between the producer and the customer. If advertising were abolished, as many people have suggested it should be, the public and the companies that advertise would suffer a considerable loss.
Most people think of television as an inexpensive source of entertainment. Television’s
primary purpose, however, is not to provide and entertainment service; except for government-owned networks, it exists in order to promote products for companies. Unless the television industry received income from advertising, watching television would be at least as expensive as going to the movies.
Like television, many magazines and newspapers exist primarily to sell products. In some cases, the stories, pictures, and editorials simply attract people to buy a particular publication. Once a person begins to read, there is no escaping the advertising.
Advertising not only pays for, or helps pay for, much of the mass media; it also provides the consumer with news from industry. This news functions first to influence the buyer to choose one product over another. It also informs people of new products that are important in their lives, for example, the development of salt-free butter for heart patients, or the development of tires that prevent skidding on wet pavement.
Advertising does not usually increase the total number of products sold; it does help determine which company sells more of which products. Its main function is to relay news from the manufacturers to the consumer. Since this is a necessary service, advertising will remain a part of people’s everyday lives and a part of every company’s budget.
46. According to the passage, modern industry or company can’t survive ________. C
A. if advertising continues to exist
B. if the link between the consumers and manufacturers remains good
C. if “the criticized child” dies ou t
D. if societies have become more industrialized
47. From the passage, we may figure out that “vital” means _______. B
A. direct
B. important
C. only
D. visible
48. According to the passage, the main purpose of television industry is _______. B
A. to make money from customers
B. to advertise for companies
C. to provide entertainment service
D. to persuade people to buy new types of televisions
49. The main function of advertising is _______. D
A. promoting products for companies
B. informing public of new products
C. influencing buyers
D. all of the above
50. Which of the following is NOT true to advertising? B
A. Advertising does not always increase the sales.
B. Advertising serves to relay information from buyers to producers.
C. advertising is and will continue to be a necessary part of everyday lives.
D. It is suggested that advertising should be abolished.
46-50 CBBDB
Questions 46 to 50 are base on the following passage:
It has often been said by people involved in language teaching that a student who really wants to learn will succeed whatever the circumstance are under which he studies. It is certainly true that students do learn in unfavorable conditions, and it is also true that students often succeed using methods that experts have considered unsatisfactory. All teachers can think of some students who significantly better than their peers, and it seems reasonable to suggest that the motivation of the student is perhaps the single most important thing that he bring to the classroom.
Motivation is some kind of internal drive that encourages somebody to pursue a course of action. It seems to be the case that if we perceive a goal and if that goal is sufficiently attractive, we will be strongly motivated to do whatever is necessary to reach that goal. Of course, goals may be of many different types. Language learners who are motivated also perceive goals of various types, and here we might immediately make a distinction between short-term goals and long-term goals. Long-term goals might have something to do with a student’s wish to get a better job or become a member of the target language community. Short-term goals might include such things as the urge to pass an end-of-term or end-of semester exam or complete a unit successfully. It seems possible to suggest that a teacher will find a strongly motivated student with a long-term goal easier to teach than a student who has to study the language because it is on the curriculum and who does not have such a goal. For the latter type of student short-term goals will often be the source of any motivation he has.
46. What’s the passage about?C
A. The way of teaching.
B. Types of goals.
C. Motivations.
D. Language Learning.
47. What is the key to a successful student according to the passage? D
A. Circumstance.
B. Methods.
C. Teachers.
D. Motivation.
48. Who is easier to be taught to the teacher? A
A. A highly-motivated student with a long-term goal.
B. A de-motivated student.
C. A student who has to study because of the curriculum.
D. A student with the urge to pass the exam.
49. It seems that all these are factors involved in learning except ______.D
A. motivation
B. teaching methods
C. learning atmosphere
D. personality
50. Who is likely to talk about the subject? B
A. Experts and authorities concerned.
B. Linguists and language teachers.
C. Psychologists and analysts
D. Assessors and predictors
46-50 CDADB
Companies can increase the money with which they 56 their business 57 a number of ways. One way is borrowing money, and 58 way is buying things with the agreement that payment can be made 59 . There are also other processes for providing money for use by a company. Two of these processes are described here.
One process the company 60 use is to issue bonds(债券). Bonds are a special kind of 61 note. They are issued in different 62 , in the forms of money used in different countries, such as the pound in England or the 63 in Germany. These bonds can easily be sold again to other people or to other companies. The company the 64 the bonds promises to pay a particular amount of money as interest 65 for a certain period of time. This continues until the time 66 the company has to pay back the principal(本金) of the bond. Payments of principal and interest must be made on time 67 the company has been earning money or not. If these payments are not made on time, it means that the company has not done 68 it agreed to do and can be sued. Another process companies may use is to issue other forms of promissory notes 69 stocks. Bonds and stocks are opposite methods of providing money for a company. The people who buy stocks 70 money which is put into and used by the company. These persons receive a part of the money that is earned and take part in deciding how the company will 71 its business. They must also take part in the 72 . The people who own stocks receive dividends only after the company has paid all of its debts to the people who own bonds. 73 , the person who own bonds have no right, 74 to the law, to help decide how the company will handle its business, unless it is bankrupt or in danger of becoming 75 .
56. A.get B.have C.go D.run
57. A.in B.on C.at D.for
58. A.other B.another C.others D.the other
59. https://www.sodocs.net/doc/e84161189.html,te https://www.sodocs.net/doc/e84161189.html,test https://www.sodocs.net/doc/e84161189.html,ter D.alate
60. A.may B.must C.should D.need
61. A.promise B.promising C.promissory D.promontory
62. A.degrees B.ways C.kinds D.values
63. A.Dollar B.France C.Mark D.Rupee
64. A.sells B.issues C.buys D.pays
65. A.regularly B.irregularly C.regular D.irregular
66. A.that B.which C.where D.when
67.A.if B.whether C.what D.that
68.A.what B.which C.that D.it
69.A.calling B.called C.calls D.call
70.A.waste B.save C.earn D.provide
71.A.conduct B.condone C.condole D.condemn
72.A.interests B.bonds C.losses D.stocks
73.A.However B.Meanwhile C.Furthermore D.On the other hand
74.A.according to B.according C.accord to D.accorded
75.A.this B.so C.it D.that
56---60 DABCA 61---65CDCBA 66----70DBABD 71---75ACDAB
The question of whether war is inevitable is one which has concerned many of the world’s great writers. Before considering this question, 56 will be useful to introduce some 57 concepts. Conflict, 58 as opposition among social entities directed against one another, is 59 from competition, 60 means opposition among social units 61 seeking to obtain something which is 62 inadequate supply. Competitors may not be aware of one another, which those who 63 in a conflict do. Conflict and competition are both 64 of opposition, which has been defined as a process by which social entities function in the disservice of one another.
Opposition is 65 contrasted with cooperation, a 66 by which social entities function in the service of one another. These 67 are necessary because it is important to emphasize that competition between individuals or groups is inevitable in a world of limited 68 , but conflict 69 . Conflict, nevertheless, is very likely to occur, and is probably an essential and desirable element of human societies.
Many authors have argued that war cannot be avoided on the idea 70 in the struggle for existence among animal species, only those which are best adapted remain 71 . In general, however, this struggle in nature is competition, not conflict. Those who fail in this competition 72 starve 73 death or become victims to other species. This struggle for existence is not 74 human war, but is 75 the competition of individuals for jobs, markets, and materials. The essence of the struggle is the competition for the necessities of life that are insufficient to satisfy all.
56. A.it B.that C.what D.this
57. A.related B.relateing C.relative D.relation
58. A.specified B.remarked C.defined D.claimed
59. A.variable B.distinguished C.various D.isolated
60 A.it B.this C.that D.which
61 A.critically B.approximately C.independently D.costly
62. A.on B.for C.with D.in
63. A.enter B.participate C.fall D.involve
64 A.formations B.classes C.terms D.reactions
65. A.nevertheless B.however C.thus D.maybe
66. A.procession B.standard C.process
D.measurement
67. A.accounts B.definitions C.descriptions
D.explanations
68. A.resources B. origins C.sources
D.materials
69. A.does not B.is not C.did not D.was not
70. A.which B.while C.when D.that
71. A.lived B.living C.alive D.life
72. A.not only B.either C.neither D.both
73. A.to B.with C.at D.in
74. A.similar to B.same as C.resembled
D.imitated
75. A.equal B.alike C.like D.unlike 56---60AACBD 61---65CDBBC 66---70CBABD 71--75CBAAC
Thanks to the great achievements made in the development of science and technology, human
life has experienced amazing changes in all aspects. We now enjoy a much more colorful and comfortable life. However, there are also some people who hold ___56___ attitude towards the development of science and technology. From their point of view, we should ___57___ away from
the modern science and technology and ___58__ to a simpler lifestyle. They seem to be nostalgic
___59__ the good old days. They argue that modern science and technology have given ___60__
to all sorts of problems , including poorer human relationship , heavier pressure from work and life, deteriorating environment and so on. ___61__ the surface of it , their argument sounds persuasive ,but on the ___62__ thoughts , it can not hold water, because the drawbacks brought by science and technology can not keep us from ___63__ the merits.
Firstly, modern transport means make it very convenient for people to travel far or near, thus
___64__ a lot of time and energy. By plane, people can ___65__ a distance of one thousand miles within one hour.
Secondly, modern science and technology raise the productivity, ___66__ people from tiring
and upsetting manual and mechanical labor. People can enjoy much more ___67__ time and freedom. On the other hand, modern household ___68__ free females from burdensome housework. Washing machines and microwave stoves have made housekeeping so much easier
that women can pursue their own careers without ___69__ the duties of a good wife and mother.
Thirdly, the advent of the Internet has ushered ___70__ a brand-new era of global information. Modern devices of telecommunications, ___71__ a great extent, improve and increase exchange of information between people.
Fourthly, advancing medical science has made it possible for human beings to ___72__ a much longer life and suffer ___73__from different kinds of diseases. Doctors and scientists have already found cures for many diseases formerly regarded incurable and fatal.
In a word, modern science and technology free man from the bondage of Nature and ___74__ human society to enjoy an unbelievable rate of development in all aspects. Without modern science and technology, life would be ___75__than the struggle for survival; there would be no
time or motivation to pursue higher things.
56.A.a wrong B. an opposite C. a negative D. a common
57. A. break B. turn C. Get D. keep
58. A. live B. satisfy C. return D. reverse
59. A. for B. about C. in D. with
60. A. increase B. rise C. chances D. answers
61. A. From B. Above C. Through D. On
62. A. next B. following C. second D. final
63. A. knowing B. acknowledging C. admitting D. mentioning
64.A. counting B. leaving C. drawing D. saving
65.A. go B. cover C. travel D. make
66. A. preventing B. freeing C. restraining D. refraining
67. A. spare B. free C. leisure D. working
68. A. tool B. machines C. devices D. appliances
69. A. neglecting B. carrying C. performing D. taking
70. A. from B. in C. on D. out
71. A. at B. in C. on D. to
72. A. get B. maintain C. lead D. make
73. A. little B. more C. less D. a great deal
74. A. enable B. provide C. prohibit D. allow
75. A. less B. more C. no more D. Just
56--60 CBCBB
61--65DCBDB
66--70BCDAB
71--75DCCAC
All over the world men are 56 new techniques to provide mass housing, inexpensively and quickly, for millions of low and middle income families, and 57 the urgent housing 58 brought on by such natural disasters 59 floods and earthquakes.
A firm in Hatrield, Pennsylvania, the Universal Papertech Corporation, believes it has found one solution 60 the problem: houses 61 paper. The ultimate success of the paper house will 62 a great deal on breaking 63 traditional patterns and concepts of home building and restrictive codes. One thing seems certain, 64 : the shelter revolution is already 65 .
The concept of paper house was developed 66 ten years ago by Universal.Six years ago the company supplied 67 the then-current models 68 emergency housing for thousands of migratory farm workers in California. 69 the houses were new on the market, no one really knew just how long the unusual structures would 70 .Today ,in California 71 still holding up well under the elements and 72 are accommodating more people than at first.The manufacturer now 73 that the houses will have a useful life of at least 15 to 20 years . 74 in the paper houses has spread beyond the U.S. 75 a number of foreign countries.
76.A. searching B. searching for C. searching in D.searching into
77.A. meet B. meets C. meeting D. to meet
78.A.requirements B. qualifications C. acquirments D. inquiries
79.A. like B. as C. that D. as to
80.A. for B. with C. to D. about
81.A. made up of B.made of C. consisting of D. composed of
82.A. set B. build C. depend D. determine
83.A.down B. away C. off D. Up
84.A. though B. although C. yet D. but
85.A. on way B. by the way C. in the way D. under way
86.A. near B. since C. within D. about
87.A. the number of B. The amount of C. a number of D. an amount of
88.A. as B. for C. in D. On
89.A. Although B.Supposing C. Whereas D. Because
90.A. remain B. persist C. continue D. Last
91.A. there are B.they are C.there is D. it is
92.A. also B. too C. as well D. Either
93.A. values B. estimates C. regards D. Counts
94. A. Attention B. Concern C. Interest D. Delight
95. A. as B. to C. on D. for
56--60BDABC 61---65BCAAD 66---70DCADD 71---75BABCB
All over the world men are 56 new techniques to provide mass housing, inexpensively and quickly, for millions of low and middle income families, and 57 the urgent housing 58 brought on by such natural disasters 59 floods and earthquakes.
A firm in Hatrield, Pennsylvania, the Universal Papertech Corporation, believes it has found one solution 60 the problem: houses 61 paper. The ultimate success of the paper house will 62 a great deal on breaking 63 traditional patterns and concepts of home building and restrictive codes. One thing seems certain, 64 : the shelter revolution is already 65 .
The concept of paper house was developed 66 ten years ago by Universal.Six years ago the company supplied 67 the then-current models 68 emergency housing for thousands of migratory farm workers in California. 69 the houses were new on the market, no one really knew just how long the unusual structures would 70 .Today ,in California 71 still holding up well under the elements and 72 are accommodating more people than at first.The manufacturer now 73 that the houses will have a useful life of at least 15 to 20 years . 74 in the paper houses has spread beyond the U.S. 75 a number of
foreign countries.
96.A. searching B. searching for C. searching in D.searching into
97.A. meet B. meets C. meeting D. to meet
98.A.requirements B. qualifications C. acquirments D. inquiries
99.A. like B. as C. that D. as to
100.A. for B. with C. to D. about
101.A. made up of B.made of C. consisting of D. composed of
102.A. set B. build C. depend D. determine
103.A.down B. away C. off D. Up
104.A. though B. although C. yet D. but
105.A. on way B. by the way C. in the way D. under way
106.A. near B. since C. within D. about
107.A. the number of B. The amount of C. a number of D. an amount of 108.A. as B. for C. in D. On
109.A. Although B.Supposing C. Whereas D. Because
110.A. remain B. persist C. continue D. Last
111.A. there are B.they are C.there is D. it is
112.A. also B. too C. as well D. Either
113.A. values B. estimates C. regards D. Counts
114. A. Attention B. Concern C. Interest D. Delight
115. A. as B. to C. on D. for
56--60BDABC 61---65BCAAD 66---70DCADD 71---75BABCB
1. The doctor told Penny that too much _____ to the sun is bad for the skin.
A. exposure
B. extension
C. exhibition
D. expansion
2.. As we know，Churchill was one of the world's most _______statesmen.
A .eminent B. imminent C. illicit D. courage
3. The scientists ________a breakthrough in cancer research.
．．．．stand for
4.___________ health, eventually he is determined to give up smoking.
5.The potato crop of 1946 was ____ that of 1945.
C. more superior to
D. more superior than
6.The law protects equal rights for all citizens, _____race, religion or sex.
A. without regard to
B. with regard of
C. regardless to
D. regardless
7. new-born things often _________ criticism, for most people are not ready to accept it.
A. invite
B. invest
C. invent
D. integrate
8.. The investigation __________ many innocent people.
A. connected
B. included
C. involved
D. implied
9. They are still not fully able to distinguish right __________ wrong.
A. between
B. from
C. for
D. against
10. They are trying to find out if these behavior patterns _______with drug-using.
A. correlate
B. alternate
C. integrate
D. recharge
1-5. A A B D B 6-10 . A A C B A
Unit 8
1. I am _______ enough to make up my own mind. You do not need to teach me.
A. young
B. mature
C. numerical
D. guarantee
2. At the conference, the scientist put forward a new theory to explain the ________ of the universe..
A. origins
B. sources
C. originality
D. roots
3. We contributed clothing ________ the relief of the poor．
A. Towards B．for C．with D．to
4. If no one come to __________ the wallet, we will deliver it to th police station.
A. claim
B. exclaim
C. reserve
D. affirm
5. The adversities in childhood do often leaves some people ________.But for some others , it drives them ________ success.
A. disadvantageous … to
B. disadvantaged … to
C. disadvantageous…..for
D. disadvantaged … for
6. The machine looked like a large, ________and old-fashioned typewriter.
A. forceful
B. clumsy
C. intense
D. tricky
7. We should try our best to _________ our recent developments in technology.
A. tap into
B. tap out
C. tap off
D. tap up
8. Even the smallest baby can _________ its mother by her voice.
A. identity
B. identify
C. realize
D. breed
9. It has been revealed that some government leaders ___ their authority and position to get illegal profits for themselves.
A. employ
B. take
C. abuse
D. overlook
10. This morning in the class, our teacher lost his _______ at last because he could not stand any more.
A. temper
B. terror
C. verse
D. contain
1-5. B A D A B 6-10. B A B C A
1. Sometimes the student may be asked to write about his _____ to a certain book or
article that has some beariry( 读后感) on the subject being studied.
A. comment
B. reation
C. impression
D. understanding.
2. Here are some toys. You can _____ one or two for your little son as a birthday gift
from me.
A. single out
B. pick out
C. take out
D. work out
3. The disagreement among the family members _____ over with time.
A. cured
B. healed
C. treated
D. recovered
4. How we _____ a chance to visit your great country!
A. looked for
B. longed for
C. waited for
D. went for
5. When traveling, you are advised to take traveller’s checks, which provide a secure_________to
carrying your money in cash.
A. substitute
B. selection
C. preference
D. alternative
6. The doctor proposed she _____ on as soon as possible.
A. be operated
B. operated
C. will be operated
D. is operated
7. The manager spoke highly of such _____ as loyalty, courage and truthfulness
shown by his employees.
A. virtues
B. features
C. traits
D. characteristics
8. I hate people who _____ the end of a film that you haven’t seen before.
A. rewrite
B. reveal
C. regard
D. react to
9. The old couple decided to _____ a boy and a girl though they had three children of
their own .
A. adapt
B. bring
C. receive
D. adopt
10. When he arrived, he found _____ the children at home.
A. nothing but
B. none other than
C. all but
D. no other but
11. This is the _____ piano on which the composer created some of his greatest
works.
A. true
B. original
C. real
D. genuine
12. Many issues, air pollution _____, are to be discussed at the meeting.
A. in theory
B. in special
C. in particular
D. in secret
13. As long as the economy of a community develops, the price there will be in a state
of _____ change.
A. consistent
B.constant
C. regular
D. frequent
14. All medicines should be kept out of _____ of children.
A. touch
B. reach
C. hand
D. contact
15. Young adults _____ older people are more likely to prefer pop songs.
A. other than
B. more than
C. less than
D. rather than
16. The _____ talks were the base of the later agreement.
A. former
B. begin
C. initial
D. latter
17. His achievement was more _____ in that he had come from such a poor family.
A. popular
B. famous
C. remarkable
D. understandable
18. Whether workers _____ free medical care has been discussed by the Board.
A. are entitled
B. entitle
C. are entitled to
D. entitle to
19. Nearly all trees have seeds that fall to the earth, take roots, and eventually ______
new seeds.
A. bloom
B. spring
C. grow
D. generate
20. The professor says that the best way to _____ poverty is creating more jobs for the
local people.
A. cripple
B. take hold
C. root out
D. take in
Keys:
1. B
2. A
3. B
4. B
5. D
6. A
7. A
8. B
9. D 10. C
11. B 12. C 13. B 14. B 15. D
16. C 17. C 18. C 19. D 20. C
1. The couple had so _____ in common that they soon departed.
A. many a
B. little
C. many
D. few
2. The house hasn't been painted for years and years -- it's a sad case of ______.
A. neglect
B. forget
C. ignore
D. dirty
3. There is no immediate _______ of his returning soon.
A. respect
B. prospect
C. chances
D. possibility
4. Luckily, all the people on the bus ______the traffic accident yesterday.
A. endured
B. survived
C. lived
D. passed
5. He tried to ______ me to cheat in the exam.
A. tempt
B. attract
C. draw
D. attempt
6. The couple’s love was put to the ______ when the husband was crippled in a car accident.
1. A. exam B. examination C. test D. trial
7. Jenny suddenly ______ a method to deal with the situation.
A. come up
B. come to
C. come up with
D. come out
8. President Bush said he will ______ in Iraq and complete the job there, only withdrawing U.S. troops once Iraqi forces are better able to handle more of their own security.
A. stand a chance of
B. stay the course
C. stand the course
D. stay the chance
9. I have been _____ your little secret ______ all these years.
A. kept … to m yself
B. keeping ... to myself
C. keep … to myself
D. keeping … to oneself
10. I felt if I had ____ him he would have lent me the money.
A. pressed
B. impressed
C. expressed
D. to press
1.I wouldn’t say he w as excellent but he is ____ at his job.
A. qualified
B. competing
C. competent
D. qualification
2. On our ships, the officers rose through the ____ and every young sailor boy had his chances.
A. rank
B. ranks
C. ranking
D. status
3. The under-18s ____ nearly 25% of the town’s population.
A. consist
B. are composed
C. constitute
D. consist of
4. There is no ___ that the dispute will not flare up again.
A. ensure
B. promise
C. guarantee
D. insure
5. How often can you _______ cheating on exams?
A. get away on
B. get away with
C. get with
D. get on
6. He ______ to me that he had spent five years in prison.
A. confided
B. told
C. spoke
D. said
7. She saw a college degree as her path to _______.
A. independence
B. be independent
C. being independence
D. independent
8. Sudan is at the top of the list of countries most vulnerable ____ internal conflict.
A. on
B. in
C. to
D. of
9. The students are expecting the arrival of an _____scientist.
A. eminent
B. imminent
C. imminence
D. eminence
10. There is no _______ difference between the two drafts.
A. essential
B. essentials
C. essence
D. important
A
A, solving B, generate C, switch D, introversion E, distinguish F, traits G, yet H, passion I, being J, quality K, opposite L, recharge M, focus N, concentration O, process
Creative people have a great deal of physical energy, but they are also often quiet and at rest. They can work long hours with great 1____________while remaining fresh and enthusiastic all the time. When necessary, they can 2_________ it like a laser beam; when not, creative types immediately 3_____________their batteries. Creative people seem able to use well two4_____________ ways of thinking: the convergent and divergent. Convergent thinking involves 5____________well-defined, rational problems that have one correct answer. Divergent thinking involves the ability to generate a great quantity of ideas, or the ability to switch from one perspective to another. In current psychological research, extroversion and 6____________are considered to be the most stable personality traits that 7____________ people from each other. Creative individuals seem to exhibit both traits at the same time. Most creative people are very passionate about their work, yet they can be extremely objective about as well. Without the 8_____________, we soon lose interest in a difficult task. Yet without being objective about it, our work may suffer and lack credibility. Perhaps the most important 9______________, the one that is most consistently present in all creative individuals, is the ability to enjoy the10____________of creation for its own sake.
B
A, consider B, particular C, reserve D, ambition E, negative F, determined G, affect H, approach I, remain J, positive K, whether L, forgive M, attitude N, relative O, defensive
Many individuals are journeying th rough life with emotional and psychological “stress and strain” from a variety of past hurts. Some may have hatred and anger against a parent,1.-
___________, or friend who has “wronged ” them in the past. Holding on to 2____________feelings and attitudes has a direct effect on your health, 3___________you realize or not! Let’s see how we can re-direct our feelings about past hurts in a 4____________and more constructive way. A new, refreshed5________will allow us to live the happier, healthier lives that we deserve.
We are products of our life experiences and it is easy to allow past events to 6___________our current thoughts and feelings. Unpleasant and unfair actions by others can7____________in our mind for a lifetime. It is not easy for many of us to 8____________others, especially if we feel that we have a good reason to be upset with the other person.
You have, however, a decision to make. Either you can let the weight of past hurts keep you down, or you can make a 9__________effort to change the situation. I suggest that you 10___________forgiveness as a powerful tool that can help.
C
A, dilemma B, flexible C, challenges D, strategies E, resilient F, develop G, conscious H, cooperation I, deliver J, foundation K, resolution L, circumstances M, capacity N, situations, O, variety
When we choose to become parents our thoughts and center on doing all we can to protect
our children from adversity. However, 1_____N_____will occur throughout a child’s life, so preparation is important. We can help children2___M ______the capacity to manage adversity by laying the 3_____L ________from infancy on. Resilience, according to Steven Wolin, is the
capacity to bounce back from adversity. Others have described it as the ability to develop coping
4_____K_______despite unfavorable conditions, positive responses to negative5_____A_______and presenting with an inner strength which helps children get through6_____________that would seem to set them up for failure.
Emmy Werner, a noted researcher on resili ence, noted that “All the children can be helped to become more 7___________if their caregivers encourage their independence, teach them8_____________ways of problem solving, boost their self-confidence, and model as well as reward acts of helpfulness and 9____________”. The research emphasizes that strengths can be developed from adversity, and that the 10_____________for their development is life long. You can help foster the development of the skills and tools needed by your child to bounce back by providing learning opportunities.
参考答案：
A：1-5 NMLKA 6-10 DEHJO
重修复习题
第一章 1.GNP核算中的劳务包括（） A．工人劳动 B．农民劳动 C．工程师劳动 D．保险业服务 2.下列产品中不属于中间产品的是：（） A．某造船厂购进的钢材 B．某造船厂购进的厂房 C．某面包店购进的面粉 D．某服装厂购进的棉布 3.已知某国的期初资本存量为30000亿美元，它在该期生产了8000亿美元的资本品，资 本折旧为6000亿美元，则该国当期的总投资与净投资分别为（）。 A．22 000亿美元和24 000亿美元 B．38 000亿美元和 36 000亿美元 C． 8 000亿美元和 6 000亿美元 D． 8000亿美元和2000亿美元 4.下列哪一项不是转移支付（）？ A. 退伍军人的津贴； B. 失业救济金； C. 贫困家庭补贴； D. 支付给公务员的工资 5.作为经济财富的一种测定，GDP的基本缺点是（）。 A. 它测定的是一国国民生产的全部产品的市场价值； B. 它不能测定私人产出产量； D. 它不能测定与存货增加相联系的生产； C. 它所用的社会成本太多。 6.在国民收入核算体系中，计入GNP的政府支出是指（）。 A．政府购买物品的支出； B．政府购买物品和劳务的支出，不包括转移支付； C．政府购买物品和劳务的支出加上政府的转移支付之和； D．政府工作人员的薪金和政府转移支付。 7.所谓净出口是指（）。 A．出口减进口； B. 进口减出口； C. 出口加出口； D. GNP减进口。 8.在四部门经济中，如果用支出法来衡量，GNP等于（）。 A．消费+投资； B. 消费+投资+政府支出； C．消费+投资+政府支出+净出口 D. 消费+投资+净出口。 9.计入国民生产总值的有（）。 A. 家庭主妇的劳务折合成的收入； B. 出售股票的收入； C. 拍卖毕加索作品的收入； D. 为他人提供服务所得收入。 10.国民生产总值与国民生产净值之间的差别是（）。 A. 直接税； B. 折旧； C. 间接税； D. 净出口。 11.按最终使用者类型，将最终产品和劳务的市场价值加总起来计算GDP的方法是（）。 A. 支出法； B. 收入法； C. 生产法； D. 增加值法。 12.国内生产总值等于（） A. 国民生产总值 B. 国民生产总值减本国居民国外投资的净收益 C. 国民生产总值加净出口 D. 国民生产总值加本国居民国外投资的净收益 13.下列哪一项不是公司间接税（）。 A. 销售税； B. 公司所得税； C. 货物税； D. 公司财产税。 14.在统计中，社会保险税增加对（）项有直接影响。 A. GDP； B. NDP； C. NI； D. PI。 15.在国民生产和国民收入中，哪种行为被经济学家视为投资？（） A. 购买新公司的债券； B. 生产性活动而导致的当前消费； C. 在二级市场上购买公司债券； D. 上述都不对。
关于补考、缓考、重修重考的说明
关于补考、缓考、重修重考的说明 一、补考、缓考：正常期末考核（考试、考查）不及格的学生，在下学期开学初第一周左右可参加学校组织的补缓考考试，此即补考。补缓考免费，无平时成绩，成绩最高分为75分。 注：期末旷考者无补考机会。 二、重考：平时不上课，期末随同报名的科目所在班级参加考试，此即重考。重考无平时成绩，最高分75分。 重考报名条件：1.重考仅限一次，再报只能报重修，否则成绩作废；2.旷考者不得报重考，只能报重修；3.考查课不能报重考； 4.重考科目必须是本学期正开设的课程。 重考报名费用：每科20元。 三、重修：重修即重新修一门课，平时需上课，有平时成绩，参加期末考核，最高分75分，期末考核如不及格，可参加下学期开学初的免费补考。重修分为重修班和插班重修两种形式。 重修班：同一科目学生报重修的达20人，即单独开班授课，此即重修班，重修班期末考核时间早于正常期末考试时间； 插班重修：同一科目学生报名的不足20人，报名的学生需跟随正在学习该科目的班级一起上课，并一同参加期末考核，此即插班重修。 重修报名条件：无条件。 重修特殊事宜：1.不能单独开班，也不能插班重修的，学校将组织退报，其余一律不得退报。2.重修班课程与其它课程相冲突
时，由学生自行解决（可采取与任课教师协商自修、提交作业等方式）。 重修报名费用：公共课每学分50元。专业课：工商管理每学分70元，市场营销每学分75元，公共事业管理每学分65元，物流管理每学分65元，电子商务每学分60元。 四、重修重考报名时间：大约于每学期开学第二周至第三周，准确时间等通知。 五、重修重考上课或考试仅限于当学期完成。 六、重修重考统计表填写要求： 1.课程类型只有“公共课”和“专业课”两种，不能填写其它类型。 2.统计表不得更改格式，尤其是与数字有关的。 3.科目务必严格按培养方案上的课程名称填写，不能省略，也不能填教材名。但英语科目必须按“英语1，英语2，英语3，英语4”字样填写；体育、形式与政策按“体育1，形势与政策1”字样填写；专升本的外语1报名为“英语3”，外语2报名为“英语4”。 4.必须认真核对学生学号及姓名，不得填错。 5.统计表分为教务处统计表和计财处统计表，两表之间必须相符合。 6.统计表需提交电子表和纸质表。 7.必须严格按照要求核实学生所报是否符合重修重考报名要求，才能予以报名统计并填写（尤其本学期未开设的课程绝对不能报重考）。
《大学物理I、II》模拟试题(1)
《大学物理I 、II 》（下）重修模拟试题（1） 一、选择题（每小题3分，共36分） 1．把单摆摆球从平衡位置向位移正方向拉开，使摆线与竖直方向成一微小角度θ ，然后由静止放手任其振动，从放手时开始计时．若用余弦函数表示其运动方程，则该单摆振动的初相为 (A) π (B) π/2 (C) 0 (D) θ [ d] 2．两相干波源S 1和S 2相距λ /4，（λ 为波长）， S 1的相位比S 2的相位超前π2 1 ，在S 1，S 2的连线上， S 1外侧各点（例如P 点）两波引起的两谐振动的相位差是 (A) 0 (B) 2 π (C) π (D) π23 ． [ b ] 3． 如果在长为L 、两端固定的弦线上形成驻波，则此驻波的基频波（波长最长的波）的波长为 (A) L /2． (B) L ． (C) 3L /2． (D) 2L ． [ d ] 4．一束平行单色光垂直入射在光栅上，当光栅常数)(b a +为下列哪种情况时（a 代表每条缝的宽度），k=4、8、12等级次的主极大均不出现 (A) a b a 3=+ (B) a b a 4=+ (C) a b a 6=+ (D) a b a 8=+ [ b ] S 1 S 2 P λ/4
5．如图所示，折射率为n 2、厚度为e 的透明介质薄膜的上方和下方的透明介质的折射率分别为n 1和n 3，已知n 1＜n 2＜n 3．若用波长为λ的单色平行光垂直入射到该薄膜上，则从薄膜上、下两表面反射的光束①与②的光程差是 (A) 2n 2 e －λ / 2 (B) 2n 2 e (C) 2n 2 e + λ / 2 (D) 2n 2 e －λ / (2n 2) [ a] 6．如果两个偏振片堆叠在一起，且偏振化方向之间夹角为60°，光强为I 0的自然光垂直入射在偏振片上，则出射光强为 (A) I 0 / 8 (B) I 0 / 4 (C) 3 I 0 / 8 (D) 3 I 0 / 4． [ a ] 7．在标准状态下，若氧气（可视为刚性双原子分子的理想气体）和氦气的体积比为2 12 1 =V V ,则其内能之比21:E E 为 (A) 1∶2 (B) 5∶3 (C) 5∶6 (D) 3∶10 [ c ] 8．如图，bca 为理想气体绝热过程，b 1a 和b 2a 是任意过程，则上述两过程 中气体对外作功与吸收热量的情况是 (A) b 1a 过程吸热，作正功；b 2a 过程吸热，作负功 (B) b 1a 过程放热，作正功；b 2a 过程吸热，作正功 (C) b 1a 过程放热，作负功；b 2a 过程放热，作负功 (D) b 1a 过程吸热，作负功；b 2a 过程放热，作负功 [ d ] 9．1mol 理想气体的状态变化如图所示，其中1—3为等温线，则气体经历1—2—3过程的熵变ΔS 为(R 为摩尔气体常量) (A) 0 (B) R ln4 (C) 2R ln4 (D) 4R [ a ] n 3 p O V b 1 2 a c
11-12-2重修复习资料
I.Vocabulary and Structure. 1.I didn’t answer the phone ____D____ I didn’t hear it ring. A. if B. unless C. although D. because 2.In his report of the accident he ___A_____ some important details. A. missed B. wasted C. escaped D. failed 3._____C___ a wonderful trip he had when he traveled in China! A. Where B. How C. What D. That 4.We’re going to __B______ the task that we haven’t finished. A. take away B. carry on C. get onto D. keep off 5.Sh e didn’t receive the application form; it __C____ to the w 6.rong address. A. sent B. be sent C. was sent D. being sent 7.She gave up her __A______ as a reporter at the age of 25. A. career B. interest C. life D. habit 8.It is necessary to find an engineer ___D_____ has skills that meet your needs. A. whom B. which C. whose D. who 9.Time __B______ very fast and a new year will begin soon. A. takes off B. goes by C. pulls up D. gets along 10.T his new style of sports shoes is very popular and it is ___C_____ in all sizes. A. important B. active C. available D. famous 11.T he general manager sat there, ___D_____ to the report from each department. A. to listen B. listen C. being listened D. listening 12.A fter the robbery, the shop installed a sophisticated alarm system as an insurance ____C____ further losse s. A. for B. from C. towards D. against 13.A healthy life is frequently thought to be ______D__ with the open countryside and homegrown food. A. associated B. tied C. bound D. involved 14.F eatures such as height, weight, and skin color ____B____ from individual to individual and from face to face. A. change B. vary C. alter D. convert 15.____A____ might be expected, the response to the question was very mixed. A. As B. That C. It D. What 16.H e gives people the impression ___A_____ all his life abroad.
重修练习1)
《电机与驱动技术B》练习卷1 一、填空题 1、三相感应电动机的机械特性是指电动机的转子转速n2与电磁转矩T之间的关系特性；最大转矩Tm对应的转差率Sm称为临界转差率。 2、旋转磁场的转向是由通入三相交流电源的相序决定的。 3、绕线转子异步电动机的常用起动方法有转子电路串接起动电阻器、绕线转子电动机转子串接频敏变阻器。 4、三相感应电动机，额定频率为50HZ，6极，额定转差率为4％，则同步转速 为1000r/min。额定转速为960r/min。 5、三相感应电动机主要有定子和转子两部分组成。 6、三相感应电动机在电动状态下，其转差率的变化是在0～1之间。 7、三相感应电动机型号Y-114M-4中，Y是异步电动机，4是极数。 8、容量较大的笼型感应电动机常采用的降压起动的方法有定子绕组串电阻、Y- Δ、自耦变压器。 9、只有运行时三相绕组三角形接法的电动机才能用Y－△接换方式起动。此方式起动电流为全压起动时的1/3；起动转矩是全压起动的1/3。 10、改变感应电动机转速的方法有改变电源频率、变极调速和改变转差率调速。 11、机械特性曲线被Tm分成两个性质不同的区域，即AB段和BC段，前者称为稳定区，后者称为不稳定区。 12、三相异步电动机 p=3，电源f1=50Hz，电机额定转速n=960r/min。转差率 s= 0.04，转子电动势的频率f2=2。 13、380/220 Y/ 是指：线电压为380V时采用Y接法；当线电压为220V 时采用△接法。 二、选择题 1、三相感应电动机定子空间磁场的旋转方向是由三相电源的（ B ）决定的。 A 相位 B 相序 C 频率 D 电压值 2、三相感应电动机定子铁心采用的材料应为（A） A 硅钢片 B 钢板或铁板 C 铅或铝等导电材料 3、异步电动机“异步”的含义（A）
2015级大学物理A1试卷A
石家庄铁道大学2016年春季学期 2015 级本科班期末考试试卷（A ） 课程名称: 大学物理(A)I （闭卷）任课教师：物理教研室 考试时间：120分钟 考试性质（学生填写）：正常考试（ ）缓考（ ）补考（ ）重修（ ）提前修读（ ） 一. 选择题 (每题3分 共30分) 1.（0518）以下五种运动形式中，a 保持不变的运动是 (A) 单摆的运动． (B) 匀速率圆周运动． (C) 行星的椭圆轨道运动． (D) 抛体运动． ［ ］ 2. （0038）质量为m 的小球，放在光滑的木板和光滑的墙壁之间，并保持平衡，如图所示．设木板和墙壁之间的夹角为α，当α逐渐增大时，小球对木板的压力将 (A) 增加． (B) 减少． (C) 不变． (D) 先是增加，后又减小．压力增减的分界角为α＝45°． [ ] 3.（0368）质量分别为m A 和m B (m A >m B )、速度分别为A v 和B v (v A >v B )的两质点A 和B ，受到相同的冲量作用，则 (A) A 的动量增量的绝对值比B 的小． (B) A 的动量增量的绝对值比B 的大． (C) A 、B 的动量增量相等． (D) A 、B 的速度增量相等． ［ ］ 4.（5397）当重物减速下降时，合外力对它做的功 (A)为正值． (B)为负值． (C)为零． (D)先为正值，后为负值． ［ ］ ——————————————————密 ————封 ————线 ————内 ————答 ————题 ————无————效 ————————————学号： 姓名： 班级：
5.（0344） 站在电梯内的一个人，看到用细线连结的质量不同的两个物体跨过电梯内的一个无摩擦的定滑轮而处于“平衡”状态．由此，他断 定电梯作加速运动，其加速度为 (A) 大小为g ，方向向上. (B) 大小为g ，方向向下. (C) 大小为g 21，方向向上. (D) 大小为g 2 1 ，方向向下.［ ］ 6.（5055）两容器内分别盛有氢气和氦气，若它们的温度和质量分别相等，则： (A) 两种气体分子的平均平动动能相等． (B) 两种气体分子的平均动能相等． (C) 两种气体分子的平均速率相等． (D) 两种气体的内能相等． ［ ］ 7.（4290）已知一定量的某种理想气体，在温度为T 1与T 2时的分子最概然速率分别为v p 1和v p 2，分子速率分布函数的最大值分别为f (v p 1)和f (v p 2)．若T 1>T 2，则 (A) v p 1 > v p 2， f (v p 1)> f (v p 2)． (B) v p 1 > v p 2， f (v p 1)< f (v p 2)． (C) v p 1 < v p 2， f (v p 1)> f (v p 2)． (D) v p 1 < v p 2， f (v p 1)< f (v p 2)． ［ ］ 8. （4579）对于理想气体系统来说，在下列过程中，哪个过程系统所吸收的热量、内能的增量和对外作的功三者均为负值？ (A) 等体降压过程． (B) 等温膨胀过程． (C) 绝热膨胀过程 (D) 等压压缩过程． ［ ］ 9. (1056) 点电荷Q 被曲面S 所包围 ，从无穷远处引入另一点电荷q 至曲面外一点，如图所示，则引入 前后： (A) 曲面S 的电场强度通量不变，曲面上各点场强不变． (B) 曲面S 的电场强度通量变化，曲面上各点场强不变． (C) 曲面S 的电场强度通量变化，曲面上各点场强变化． (D) 曲面S 的电场强度通量不变，曲面上各点场强变化． ［ ］ q
听力3重修复习资料
Test-1 Part One: short conversations 16% 1. A. She decided not to come. C. She forgot to come. B. She wasn’t invited. D. She is coming earlier. 2. A. Steve looks good in anything. B. He wishes he had a jacket like Steve’s C. He knew someone who looked like Steve. D. Steve should get a new jacket. 3. A. Turn left at the traffic lights. C. Go to the right on the Green Street. B. Take the second left. D. Turn right at the corner. 4. A. The man should study harder. C. The man should not wait so long to start. B. The man is doing better. D. The man should reconsider his ways. 5. A. At a department store. C. At an office building. B. At a railway station. D. At an airport. 6. A. Boss and receptionist. C. Boss and secretary B. Manager and customer. D. Dentist and patient. 7. A. The woman will not help the man because she is busy. B. The woman will help the man later. C. The woman will help the man immediately. D. The woman will stop to help the man soon. 8. A. The position of silverware. C. Sewing napkins. B. Setting the table. D. Doing some washing-up. Part Two Long conversations 14% Conversation One 1. A. The west of the city. C. The west of Europe B. The west of L.A. D. The West Coast 2. A. Its transportation. C. Its Suburb. B. Its environment. D. Its weather. 3. A. It was windy. C. It was cool. B. It was warm. D. It was too hot. 4. A. Golden Gate Park. C. Fishermen’s Wharf. B. The cable car ride. D. Old Victorian houses. Conversation Two 5. A. He dislikes his present job. B. He is afraid to take on a new job. C. He has no idea of how to find a job. D. He has to make a choice between two jobs. 6. A. It is more interesting. C. It is less demanding. B. It is not always busy. D. It has better hours. 7. A. He can drink coffee as he likes. B. He has already had some regular customers. C. He likes to meet people and get to know them. D. He can prepare his own breakfast in the morning.
车站重修复习题
2015-2016学年第一学期铁路车站自动控制系统维护重修复习题 一、判断题：（共20题，每题0.5分） 1、6502选岔规律仅适用于下行咽喉，不适用于上行咽喉。( ) 2接在1、2网路线上的FCJ优先于3、4网路线上的FCJ而动作。( ) 3、进路右端JXJ吸起说明进路全部选出。( ) 4、进路右端AJ落下，方向继电器落下复原。( ) 5、股道两端不能同时向该股道建立对向的任何进路。( ) 6、单置调作为进路始端时1AJ、AJ吸起，2AJ不会吸起。( ) 7、单置调作为进路始端时DXF组合里面的JXJ励磁吸起。( ) 8、六线制选岔网路每对网路线上的继电器总是从左到右顺序动作的，与所选进路的方向、 性质无关。( ) 9、7线进路终端送KF，始端局部电路送KZ。( ) 10、8线进路终端送KZ，始端局部电路送KF。( ) 11、14线是控制台白光带、15线是红光带表示灯用的网路线。( ) 12、XJJ检查进路空闲、道岔位置正确、敌对进路没有建立这三项开放信号的最基本联锁条件。............................................ ( ) 13、在6502网络线中是由第9线实现对超限绝缘的检查。( ) 14、DXJ受7线和11线控制，并且需要重新检查8线。( ) 15、正常解锁利用CJ快动特性、取消解锁利用CJ滞后特性。( ) 16.车站信号平面图是编制联锁表的依据。( ) 17列车进路上的无岔区段，应选用2/Q组合类型图。( ) 18.正线上的出站信号机未开放时，进站信号机的通过信号不允许开放。( ) 19.当排列经由交叉渡线的一组双动道岔反位时，对与其交叉的另一组双动道岔应将其防护在定位位置。( ) 20.并联传递选岔电路在JXJ吸起后，可证明进路已全部选出。( ) 21.在选排长调车进路时，因中间信号点的AJ不吸起，所以中间信号点的按钮表示灯不亮。................................... .( ) 22.道岔表示电路要求在室外联系线路混入其他电源时，保证DBJ和FBJ不会错误吸起。电路上是通过每组道岔设有专用的表示变压器，即采用了独立电源来实现的。( ) 24.调车信号机蓝灯断丝，复示器闪光，会影响排列以其作为始端的调车进路。( ) 25.进路正常解锁，总是1LJ先吸起，2LJ后吸起。( ) 26.6502电路中CJ平时处于吸起状态。( ) 27.某组道岔启动后，在转换过程中，拉出该组道岔CA切断1DQJ电路，道岔立即停止转动。..................................... .( ) 28.在6502电路中凡是进路始端都要设一个KJ。( ) 29.信号检查继电器1-2线圈自闭电路是专作防护用的。( ) 30.按压总人工按钮ZRA期间，单独操纵道岔不能使道岔转换。( ) 31.正常解锁时利用传递继电器的快吸特性接通解锁网络。( ) 32.对于电气集中车站，车站值班员负责控制台、人工解锁按钮盘的加封完整。( ) 33.某道岔发生挤岔事故，移位接触器接点断开时，控制台挤岔电铃响铃，挤岔表示灯亮红灯。........................................... .. ( ) 34.计算机联锁系统在进路已办理好的情况下可以进行联锁机和监控机的切换。( ) 35.当UPS电源故障时，可以将UPS甩掉，直接由参稳输出向设备供电。( ) 36.联锁机主备机同步工作时，系统出现故障，能进行热切换。( )
《大学物理I、II》(下)模拟试题(2)
《大学物理I 、II 》（下）重修模拟试题（2） 一、选择题（每小题3分，共36分） 1．轻弹簧上端固定，下系一质量为m 1的物体，稳定后在m 1下边又系一质量为m 2的物体，于是弹簧又伸长了?x ．若将m 2移去，并令其振动，则振动周期为 (A) g m x m T 122?π= (B) g m x m T 212?π= (C)g m x m T 2121?π= (D) g m m x m T )(2212+π=? [ ] 2．有两个相同的容器，容积固定不变，一个盛有氦气，另一个盛有氢气（看成刚性分子的理想气体），它们的压强和温度都相等，现将5J 的热量传给氢气，使氢气温度升高，如果使氦气也升高同样的温度，则应向氦气传递热量是 ［ ］ (A) 6 J (B) 5 J (C) 3 J (D) 2 J 3．一机车汽笛频率为750 Hz ，机车以25 m/s 速度远离静止的观察者。观察者听到的声音的频率是（设空气中声速为340 m/s ）。 (A) 810 Hz (B) 685 Hz (C) 805 Hz (D) 699 Hz [ ] 4．一质点在X 轴上作简谐振动，振幅4A cm =，周期2T s =，取其平衡位置为坐标原点，若0t =时刻质点第一次通过2x cm =-处，且向X 轴负方向运动，则质点第二次通过2x cm =-处的时刻为 ［ ］ （A ）1s （B ）32s （C ）3 4 s （D ）2 s
5．如图所示，平板玻璃和凸透镜构成牛顿环装置，全部浸入n ＝1.60的液体中，凸透镜可沿O O '移动，用波长λ＝500 nm(1nm=10-9m)的单色光垂直入射。从上向下观察，看到中心是一个暗斑，此时凸透镜顶点距平板玻璃的距离最少是 (A) 156.3 nm (B) 148.8 nm (C) 78.1 nm (D) 74.4 nm (E) 0 [ ] 6．一横波以波速u 沿x 轴负方向传播，t 时刻波形曲线如图所示，则该时刻 ［ ］ (A) A 点振动速度大于零 (B) B 点静止不动 (C) C 点向下运动 (D) D 点振动速度小于零 7．1 mol 刚性双原子分子理想气体，当温度为T 时，其内能为 [ ] (A) RT 23 (B)kT 23 (C)RT 2 5 (D) kT 2 5 （式中R 为普适气体常量，k 为玻尔兹曼常量） 8．如图所示，折射率为n 2、厚度为e 的 透明介质薄膜的上方和下方的透明介质的折 射率分别为n 1和n 3，已知n 1＜n 2＜n 3．若用 波长为λ的单色平行光垂直入射到该薄膜上， 则从薄膜上、下两表面反射的光束①与②的 光程差是 [ ] (A) 2n 2 e －λ / 2 (B) 2n 2 e (C) 2n 2 e + λ / 2 (D) 2n 2 e －λ / (2n 2) n=1.68 n=1.60 n=1.58 O ' O λ x u A y B C D O n 2 n 1 n 3 e ① ②
高数重修复习
复习题 一、填空题 （请将答案填入题中横线上空白处，不填写解题过程。） 1. 平面λ=-+z y x 32是曲面2232y x z +=在点)4 5 ,21,21(处的切平面，则λ＝ 。 3．函数 23u xy z xyz =+-在点 0(0,1,2)P - 沿方 向l 的方向导数 0|P u ?=?l ． 3．设10,1: ≤≤≤y x D 。则??+D yd y y x σ)cos (5＝ 。 6．积分 dy y x f dx x x ? ? -2 1 ),(在极坐标系下的累次积分为 。 7．若级数 ∑∞ =-1 3)5(n n u 收敛，则n n u ∞ →lim ＝ 。 8．幂级数∑∞ =++--1 1 212)2()1(n n n n x 的收敛域为 。 9. 幂级数221)1(2-∞ =-∑ n n n x n 的收敛域为 。 10．曲线2 ,3,42 34t z t y t x ===在点 )2 1 ,31,41(处的切线方程为 。 11．设2 1arctan y x z +=，则1 1==y x dz ＝ 。 12．若曲线积分 ? -++-L dy y y x dx xy x )56()4(4214λλ在xoy 平面内与路径无关，则 λ＝ 。 13. 曲线积分 ? +L x d y y d x y x F ))(,(与路径无关，则可微函数),(y x F 满足的条件 是 。 14. 设L 为平面上的椭圆122 22=+b y a x ，边界为正向，则曲线积分?+L ydy xdx cos 3＝ 。 15. 设),(z y xy f u +=，),(t s f 可微，则du ＝ 。
重修班复习资料(1)
一、选择题： 1、空气的动力粘度随温度升高 。 A ．增大； B ．降低； C ．不变； D ．不定。 2、与牛顿内摩擦定律有关的因素是 。 A ．压强、速度和粘度； B ．流体的粘度、切应力与速度梯度； C ．切应力、温度、粘度和速度； D ．压强、粘度和速度梯度。 3、流体内部某点存在真空，是指： 。 A ．该点的绝对压强为正值 B ．该点的相对压强为正值 C ．该点的绝对压强为负值 D ．该点的相对压强为负值 4、实际流体在等直径管道中流动（右图示），在过流断面1，2上有A ，B ，C 点，则下面关系式成立的是： A ．； B ．； C ．； D ． 5、总水头线与测压管水头线的基本规律之一，是： 。 A ．总水头线总是沿程下降的。 B . 总水头线总是在测压管水头线的下方。 C. 测压管水头线沿程升高。 D. 测压管水头线总是沿程下降的。 6、文丘里管用于测量 。 A ．流体点流速； B ．流体密度； C ．流体流量； D ．流体点压强 7、1、2两等径管并联，沿程阻力系数相同，长度122l l ，流量为 。
A ． 2 1V V q q =；B ． 2 1414.1V V q q =；C ． 2 14V V q q =；D ． 2 12V V q q =。 8、下图的两种孔口(孔径相同)出流方式，则Q 1和Q 2的关系式正确的为： 。 A ．左图21Q Q >,右图 21Q Q =； B ．左图21Q Q <,右图 21Q Q =； C ．左图21Q Q <,右图 21Q Q >； D ．左图21Q Q >,右图 21Q Q <； 9、水和空气两种不同流体在圆管内流动，临界雷诺数Re cr 的关系是（ ） A ．r c Re 水.>r c Re 空气 B ．r c Re 水 07/08（二）大学物理Ⅱ 重修班试卷（A ） 一 选择题（共24分） 1.（本题3分）（2018） 边长为L 的一个导体方框上通有电流I ，则此框中心的磁感强度 (A) 与L 无关． (B) 正比于L 2． (C) 与L 成正比． (D) 与L 成反比． (E) 与I 2有关． ［ D ］ 【提示】0O 124(cos cos )4I B r μθθπ=? -， =2 L r ，145θ=?，2135θ=? 2.（本题3分）（2125） 如图，长度为l 的直导线ab 在均匀磁场B 中以速度v 移动，直导线ab 中的电动势为 (A) Bl v ． (B) Bl v sin α． (C) Bl v cos α． (D) 0． ［ D ］ 【提示】没有切割磁感应线。 ()B L ε=??v ，()B ?v 的方向垂直于纸面，与L 点积后等于零。 3.（本题3分）（5138） 在一自感线圈中通过的电流I 随时间t 的变化规律如图(a)所示，若以I 的正流向作为ε的正方向，则代表线圈内自感电动势ε随时间t 变化规律的曲线应为图(b)中(A)、(B)、(C)、(D)中的哪一个？ [ D ] 【提示】d d L I L t ε=-，d d I t 为I —t 曲线上的斜率； 还有一负号。 4.（本题3分）（2420） 在圆柱形空间内有一磁感强度为B 的均匀磁场，如图所示．B 的大小以速率d B /d t 变化．在磁场中有A 、B 两点，其间可放直导线AB 和弯曲 的导线AB ，则 (A) 电动势只在AB 导线中产生． (B) 电动势只在AB 导线中产生． (C) 电动势在AB 和AB 中都产生，且两者大小相等． (D) AB 导线中的电动势小于AB 导线中的电动势． ［ D ］ 【提示】作径向辅助线后构成一个回路，则AB 的电动势等于该回路的电动势，而回路的电 v t t t 简答题 1.什么是液压传动？ 液压传动是用液体作为工作介质来传递能量和进行控制的传动方式 2.什么是液体的粘性？ 粘性液体在外力作用下流动时，液体在外力作用下流动时，分子间的内聚力阻碍分子间的相对运动而产生一种内摩擦力，子间的相对运动而产生一种内摩擦力，液体的这种性质叫做液体的粘性 3.液压泵按结构分主要有哪三种常用形式？ 柱塞泵、齿轮泵、叶片泵 4.双作用叶片泵的定子内表面曲线是怎么组成的？ 5.什么是换向阀的“位”和“通”？ 一只三位四通电磁阀：三位指的是阀芯的动作和位置，当左右线圈都失电时阀芯在中间，当左线圈得电阀芯动作左阀门打开，当右线圈得电时右阀门打开。四通指的是油路的通径有四个，分别进油口P、左出油口A、右出油口B、回油口O. 6.什么是溢流阀的启闭特性？ 启闭特性是指溢流阀的开启与闭合特性。开启特性是以开启压力与额定压力的百分比表示;闭合特性则以闭合压力与额定压力的百分比表示 7.顺序阀有哪三个主要作用？ 1）控制多个元件的顺序动作； 2）用于保压回路； 3）防止因自重引起油缸活塞自由下落而做平衡阀用； 4）用外控顺序阀做卸荷阀，使泵卸荷； 5）用内控顺序阀作背压阀 8.画出普通节流阀的压力-流量特性曲线？ 9.画出采用节流阀的出口节流调速回路的速度-负载特性曲线。 10.液压传动有哪几部分组成的？其作用是什么？ 动力部分，控制部分，执行机构和附件。动力部分包括电机和泵提供动力源，控制部分包括各种阀，提供压力、流量、方向的控制。执行机构一般指液压缸、马达，提供直线、旋转的功能。附件包括各种接丝、管路，用来将各部件连接起来。 11.什么是液体的可压缩性？ 12.采取什么方法可以提高外啮合齿轮泵的工作压力？ 提高转速，或者加强端盖密封。齿轮泵的工作压力理论上是可以无限高的，一方面齿轮泵端盖以及啮合面有泄漏，如果排除泄漏问题，那么齿轮泵可以把排出压力提高到封闭段的排出管路爆炸为止。 13.液压泵的主要性能参数有哪些？ 压力、流量，安装尺寸以及轴的形式 第1章 函数与极限 1.用区间表达函数)4arcsin() 3ln(-+-= x x x y 的自然定义域]5,4()4,3(?. 解：应14,03,0)3ln(≤->-≠-x x x ，得141,3,13≤-≤->≠-x x x ，得]5,4()4,3(?. 3.已知1)1(2++=+x x x e e e f ,求)(x f 的表达式. 解法1：因为1)1()1(1)1(22++-+=++=+x x x x x e e e e e f ，所以1)(2+-=x x x f . 解法2：令1+=x e u ，则)1ln(-=u x ，代入式1)1(2++=+x x x e e e f ，得 11)1()1(1)(22)1ln()1ln(2+-=+-+-=++=--u u u u e e u f u u ，即得1)(2+-=x x x f . 5.A x f x x =→)(lim 0 的充分必要条件是A x f x f x x x x ==+-→→)(lim )(lim 0 . 6.=+ →x x x 0lim 1 ,=-→x x x 0lim ―1 ,处的极限情况为 不存在 . 解：在极限x x x +→0lim 中，+ →0x ，此时0>x ，所以11lim lim lim 000===+++ →→→x x x x x x x ， 在极限x x x -→0lim 中，- →0x ，此时0 谢谢戴老师分享的一手资料，答案在最后。这些是小题范围，考 试的大题多为老师在课本上划得重点习题 目 录 流体力学 (2) 一、选择题 (2) 二、填空题 (3) 三、判断题 (5) 热学 (6) 一、选择题 (6) 二、填空题 (11) 三、判断题 (14) 静电场 (15) 一、选择题 (15) 二、填空题 (17) 三、判断题 (17) 稳恒磁场 (18) 一、选择题 (18) 二、填空题 (21) 三、判断题 (22) 振动和波动 (23) 一、选择题 (23) 二、填空题 (26) 三、判断题 (27) 波动光学 (27) 一、选择题 (27) 二、填空题 (30) 三、判断题 (31) 物理常数：1231038.1--??=K J k ，1131.8--??=mol K J R ，2/8.9s m g =，电子电量为 C 19106.1-?，真空介电常数2212010858/Nm C .ε-?=，真空磁导率 270104--??=A N πμ，18103-??=s m c 。693.02ln =。 流体力学 一、选择题 1．静止流体内部A ，B 两点，高度分别为A h ，B h ，则两点之间的压强关系为 （A ）当A B h h >时，A B P P >； （B ）当A B h h > 时，A B P P <； （C ）A B P P =； （D ）不能确定。 2.一个厚度很薄的圆形肥皂泡，半径为R ，肥皂液的表面张力系数为γ；泡内外都是空气， 则泡内外的压强差是 （A ）R γ4； （B ）R 2γ； （C ）R γ2； （D ）R 32γ。 3．如图，半径为R 的球形液膜，内外膜半径近似相等，液体的表面张力系数为γ，设A ， B ， C 三点压强分别为A P ，B P ，C P ，则下列关系式正确的是 （A ）4C A P P R γ-= ； （B ）4C B P P R γ-=； （C ）4A C P P R γ-=； （D ）2B A P P R γ-=-。 4．下列结论正确的是 （A ）凸形液膜内外压强差为R P P 2γ=-外内； （B ）判断层流与湍流的雷诺数的组合为ηρDv ； （C ）在圆形水平管道中最大流速m v 与平均流速v 之间的关系为m v v 2=； （D ）表面张力系数γ的大小与温度无关。 5．为测量一种未知液体的表面张力系数，用金属丝弯成一个框，它的一个边cm L 5=可以 滑动。把框浸入待测液体中取出，竖起来，当在边L 中间下坠一砝码g P 5.2=时，恰好可 拉断液膜，则该液体的表面张力系数是 （A ）m N /15.0； （B ）m N /245.0； （C ）m N /35.0； （D ）m N /05.0。 6．下列哪个因素与毛细管内液面的上升高度无关：07-08(二)大学物理Ⅱ重修班试卷及解答 (1)
重修复习题
高数重修1习题详解
华南农业大学大学物理B复习资料试题