大学英语自学教程上册课后习题答案
《大学英语自学教程》（上册）课后习题答案
Text A
Unit 1
Exercises for the Text
I.
1.d
2.a
3.c
4.d
5.d
II.
1.task
2.intelligent
3.research
4.clue
5.conclusion
6.repe at
https://www.sodocs.net/doc/fb2062746.html,municate
8.purpose
9.probably 10.outline
III.
1.Instead of
2.therefore
3.more...than
4.even
5.First of all
6.because
7.on the other hand
8.finally
9.looking
for 10.Conversely
IV.
1.Research shows that successful language learners are similar in many ways.
https://www.sodocs.net/doc/fb2062746.html,nguage learning is active learning.Therefore,successful learners should look for every chance to use the language.
https://www.sodocs.net/doc/fb2062746.html,nguage learning should be active,independent and purposeful.
4.Learning a language is different from learning maths.
5.The teacher often imparts successfull language learning experiences to us.
Vocabulary Exercises
I.
1.a.success b.successful c.successfully
2.a.indepence b.depend c.dependent
3.a.covered b.uncover c.discovered
4.a.purposeful b.purposefully c.purpose
II.
1.inexact
2.technique
3.outlined
https://www.sodocs.net/doc/fb2062746.html,municate
5.regularly
6.clues
7.intelligent 8.incomplete 9.similar
10.statement
III.
1.disagree
2.independent
3.incomplete
4.inexact
5.uncover
IV.
1.They find it hard to master a foreign language.
2.The research shows that successful men are similar in many ways.
3.Successful language learners do not only depend on the book or the teacher.
4.We are willingto help our friends.
5.We should learn new things independently,actively,and purposefully.
Text B
Exercises for the Text
I.
1.T
2.F
3.T
4.F
5.T
6.F
7.F
8.F
9.T 10.F
II.
1.With the help of their fingers
2."I am thirsty."
3.tea,coffee,wine,beer and soda-water
4.Put his hands on his stomach
5.nothing but drinks
6.much more exact
7.meanings and can be put together into sentences
8.form new sentences
9.talk
10.speak
Vocabulary Exercises
I.
1.b
2.a
3.c
4.e
5.d
II.
1.B
2.A
3.B
4.D
5.A
6.A
7.C
8.C
9.C 10.B
Grammar Exercises
I.
whether 连词 towards 介词
second 数词 hour 名词
repeat 动词 successful 形容词
not 副词 probably 副词
than 连词 because 连词
which 连词 even 副词
intelligent 形容词 differ 动词
regular 形容词 some 形容词/代词/副词
into 介词 oh 感叹词
seem 系动词 communicate 动词
II.
1.Let 动词 round 介词
2.fresh 形容词 for 介词
3.leave 名词 call 动词 on 介词 if 连词 spare 动词
4.Even 副词 it 代词
5.Where 连接副词 will 名词
6.after 介词 calm 名词
7.seem 系动词 those 代词 makes 名词
8.without 介词 return 名词
9.strict 形容词 work 动词
10.news 名词 live 形容词 meeting 名词
III.
(斜体为主语，带下划线的为谓语）
1.Most adults would disagree with this statement.
2.How much time did they allow you for doing the work.
3. I had a visit from Mary yesterday.
4. China's stand on this questionis clear to all.
5.Warm clothes protest against the cold of winter.
6.What we need is more practice.
7.There doesn't seem to be much chance of my getting job.
8.In those days the cost of living rose by nearly 4 percent.
9.There are a number of people interested in the case.
10.Every means has been tried but without much result.
IV.
1.a magazine (宾语）last night （状语）
2.in need (定语）indeed (定语）
3.outside your area (定语）telephoning long distance （主语补足语）
4.your children (宾语）all day （状语）
5.his direction （宾语）French （宾语）
6.me (宾语）plenty of exercises (不定式宾语）
7.long (宾语）to London （状语）
8.those (宾语）who help themselves (从句作定语）
9.her （宾语）above others （宾语补足语）
10.to build a hotel in the village (定语）of the foreigners （定语）
Unit 2
Text A
Exercises for the Text
I.
1.a
2.c
3.a
4.a
5.c
II.
1. Income tax is a certain percentage of the salaries paid to the goverment.
2. Graduated income tax means the percentage of the tax(14 to 70 percent) increases as a person's income increase.
3. Property tax is that people who own a home have to pay taxes on it.
4. Exercise tax is charged on cars in a city.
5. Sales tax is a percentage charged to any item which you buy in that state.
III.
1.due
2.depends on
3.diverse
4.consists of
5.simila
6.tends to
https://www.sodocs.net/doc/fb2062746.html,plaining about
8.In addition to
9.issue 10.agreed on IV.
1.How much do you charge for a haircut.
2.We are trying to use funds for the Red Cross.
3.He has earned a good reputation for honsety.
4.We pay taxes in exchange for government services.
5.An open letter protests the government's foreign policy.
V.
1.Every citizen is obliged to pay taxes.(It is obligatory on every citizen to pay taxes)(It is every citizen's duty to pay taxes.)
2.Americans often say that there are two things they can be sure of in life.
3.There are generally three levels of government in the United States; therefore,there are three types of taxes.
4.Some states charge income tax in addition to a sales tax.
5.Americans complain that taxes are too high and the government uses them in the wrong way.
Vocabulary Exercises
I.
1.a. percent b. percentage c. percent
2.a. adds b. addition c. additional
3.a. confused b. confusing c. confusion
4.a. complained b. complain c. complaint
II.
1.charge
2.departmen
3.due
4.diverse
5.earns
6.vary
7.prope rty
8.leading
9.funds 10.tends
III.
1.China leads the world with silk products.
2.In addition to an income tax some states charge a sales tax.
3.The sales tax varies from price to price of any item you buy.
4.People often complain about the increasing price.
5.His mother says that he spends too much time on TV every day.
Text B
Exercises for the Text
I.
1.F
2.F
3.F
4.T
5.T
6.T
7.T
8.F
9.T 10.F
II.
1.attracts
2.leisure
3.available
4.limited
5.estimate
III.
1.decided on
2.approved
3.estimate
4.carried over
5.put up with
6.characteristic of
IV.
1.B
2.C
3.B
4.A
5.C
6.D
Grammar Exercises
I.
1.SV
2.SVO
3.SVOC
4.SVC
5.SVO
6.SVOC
7.SVOC
8.SVO
9.SVOO 10.SVOC
11.SVOC 12.SVC 13.SVOC 14.SVOO 15.SVC
II.
1.prefer
2.insisted
3.need
4.make
5.remember
6.look
7.worked
8.was
9.sounds 10.gave
III.
1.B
2.C
3.D
4.A
5.B
6.C
7.A
8.D
9.A 10.D
IV.
1.The two languages are different/not similar in many way.
2.The deaf and dumb can neigher speak nor hear.
3.The Englishman speaks a very good Italian.
4.Could you pass me a cup of coffee.
5.At this time he felt thirsty and hungry.
6.Yesterday evening she asked me to wait for her at the gate of the restaurant.
7.When did you get up this morning.
8.The story sounds interesting,but it is not true.
9.The meat and macaroni cost me 25 yuan.
10.She oftern teaches the children to sing English songs. Unit 3
Text A
Exercises for the Text
I.
1.d
2.d
3.c
4.b
5.d
II.
1.long/wide
2.across
3.deep
4.around
5.high
III.
1.The,/,/
2.The
3.the,the
4./
5./,a
6./,the
7./ 8.The,the,the 9.The,the
10./
IV.
1.unwilling
2.avarage
3.take
4.runs
5.Suppose
V.
1.On the avarage there are 1,000 vistors a day.
2.The Atlantic Ocean is only as half as the Pacific,but it is moar
than 4,000 miles wide.
https://www.sodocs.net/doc/fb2062746.html,st night it took him a long time to get to sleep.
4.There are so many ads on TV that it is to remember how many there are.
5.Many wrong ideas about the Atlantic made the people in Columbus'days unwilling to sail westward.
Vocabulary Exercises
I.
1.a.sailed b.sailor c.sail(n.)
2.a.willing b.unwillingly c.unwilling
3.a.unusual https://www.sodocs.net/doc/fb2062746.html,ual https://www.sodocs.net/doc/fb2062746.html,ually
4.a.average(n.) b.average(a.) c.averaged(v.)
II.
1.peak
2.crew
3.average
4.blils
5.unusual
6.highway
7.narrow 8.salty 9.spot
10.affected
III.
1.The sailors were afraid that might meet bad weather.
2.The mountain is half as high as Mount Tai.
3.On the average there are 45 students in every class of the school.
4.The climate affects the growth of plants.
5.My work keeps pilling up.
Text B
Exercises for the Text
I.
1.T
2.T
3.F
4.T
5.F
6.T
7.T
8.T
9.F 10.T
II.
1.three
2.the earth's gravitational pull.
3.it is near
4.29.5
5.its own/reflects
6.disc
7.the old moon in the new moon's arms.
8.outline
9.the old earth in the new earth's arms
10.night
Vocabulary Exercises
I.
1.d
2.b
3.a
4.c
5.e
II.
1.C
2.C
3.B
4.A
5.D
6.C
7.B
8.B
9.B 10.D Grammar Exercises
I.
depend--dependence explain--explanation form--formation conclude--conclusion inform--information move--movement mean--meaning govern--government graduate--graduation similar--aimilarity confuse--confusion pay--payment
agree--agreement advertise--advertisement announce--announcement add--addition
decide--decision use--usefulness
attract--attraction mix--mixture
II.
science--scientific sulless--sullessful response--responsible color--colorful
nation--national revolution--revolutionary addition--additional help--helpful
person--personal meaning--meaningful accept--acceptable use--useful
wood--wooden act--active
III.
disagree eimpractical independent uncover inexact incomplete disorder unhappy informal inpossible inactive uncertain discharge dishonest impolite
IV.
1.try n. 尝试；试验
经过许多次尝试后，他们终于取得了成功。
2.say n. 发言权
在所有的事务中妇女应享有平等的发言权。
3.market v.（在市场上）销售
三年后他们开始在市场上销售他们的产品。
4.journey v. 游历
要到那儿，他们得踏遍整个山区。
5.make n. 牌子；产品
虽然乍一看我们的产品比其它产品的价格要高，可顾客还是愿意买我们的产品。
6.parrot v. 鹦鹉学舌般地重复
老板说什么，他学说什么。
7.wine v. 喝酒
他们吃喝到深夜。
8.empty v. 使流入
这条小溪流入黄河。
9.head v. 作为...之首
后来他被任命为经理主管这个公司。
10.bridge v. 越过；跨过（障碍）
这项政策将有助于度过难关。
11.slow v. 使慢下来
火车减速一半。
12.after-sale a. 售后的
如果你们能提供令人满意的售后服务，你们的产品肯定会在这儿有市场。
13.machine v. 加工
机床是用来加工金属制品的。
14.take-off 起飞
飞机起飞时禁止吸烟。
15.radiocontrol 无线电控制
所有的模型飞机都是无线电遥控的。
16.downtown 城市商业区的
繁忙的商业街或购物中心通常是开饭店的好场所。
17.will 意志力；决心
有志者，事竟成。
18.house v. 给...房子住
据说这套新公寓能住下六口之家。
19.water v. 淌口水
见到苹果，他直流口水。
20.rule v. 控制；支配
有钱就有势。
Unit 4
Text A
Exercises for the Text
I.
1.c
2.b
3.b
4.d
5.c
II.
1.smooth
2.similar
3.mental
4.municipal
5.meaningful
https://www.sodocs.net/doc/fb2062746.html,eful
7.familar 8.single 9.striking
10.difficult
III.
https://www.sodocs.net/doc/fb2062746.html,rmation that does not make any sense to you is difficult to remember.
2.Association refers to associating what we want to remember with what we have already remembered.
3.Catagorezing words helps memory.
4.Needless to say,if the books in the library were kept in a random order,readers could not find the books they wanted.
5.Forming an integrated image with all the information placed in
a single memtal picture can help up to preserve a memory. Vocabulary Exercises
I.
1.a.psychologist b.psychology c.psychological
2.a.meaningless b.meaning c.meaningful
https://www.sodocs.net/doc/fb2062746.html,anized https://www.sodocs.net/doc/fb2062746.html,anizer https://www.sodocs.net/doc/fb2062746.html,anization
4.a.repeated b.repetition c.repeat
II.
1.ability
2.accurately
3.focus
4.needless
5.meaningful
6.random
7.Repetition 8.preserve 9.improvement
10.image 11.related to 12.associate,with
III.
1.mean
https://www.sodocs.net/doc/fb2062746.html,anize
3.visualize
4.associate
5.improve
6.repeat
7.memorize https://www.sodocs.net/doc/fb2062746.html,municate 9.categorize
10.imagine
IV.
1.Their research focuses on the learning skills of adults.
2.It is meaningful to know how to use these phrases.
3.The adult group consists of 15 people.
4.Needless to say,we all know these facts.
5.Memory refers to the ability to remember the past events or experience.
6.I always associate the song with my school life.
Text B
Exercises for the Text
I.
1.T
2.F
3.T
4.F
5.T
6.F
7.F
8.F
9.F 10.T
II.
1.eighteen
2.repeat the number over and over
3.a cage an three doors
4.wait a short time
5.a random
6.reward
7.beginning,intermediate,advanced,and native-speaking students
8.Weather,whether,wither,wetter
9.recall,contrast,interrupt,dial
10.the meaning of words
Vocabulary Exercises
I.
1.e
2.b
3.a
4.c
5.d
II.
1.kept
2.contrast
3.human
4.released
5.intermediate
III.
1.C
2.D
3.A
4.D
5.B
Grammar Exercises
I.
1.declarative sentence
2.imperative sentence
3.declarative sentence
4.exclamatory sentence
5.interrogative sentence
6.exclamatory sentence
7.imperative sentence
8.declarative sentence
9.declarative sentence 10.imperative sentence
II.
1.Did he attend the English lecture yesterday?
2.Was it still raining when you came in?
3.Is there anyone in the house?
4.Was the baby well looked after?
5.Do you usually get up early in the morning?
6.Do you like to study in the reading room?
7.Can he tell you the result next week?
8.Was she able to swim across the lake?
9.Will it be good weather tomorrow?
10.Did Mr. Brown lose his job again?
III.
1.Where is the post office?
2.When did Tom graduate from college?
3.How does he study French?
4.Who lost the key to the door?
5.Why did Miss lee fell very bad?
6.What are listed in the telephone book?
7.How is your mother?
8.Which bus do you think she is going to take?
9.What did he advise you to go?
10.Why did he come?
IV.
1.She and husband disagree on many issues.
2.Cluld you talk about the problems about taxation.
3.Bring me a glass of water,please.
4.Your uncle does not say a word at home,does he?
5.What are the customers complaining about?
6.Did he travel in France of in Italy last summer?
7.Did you read the ad in a newspaper or in a magazine?
高英课本课后翻译答案
这是我整理的，希望对大家有用。蓝色部分是重点词汇。 第一课 1、一条蜿蜒的小路隐没在树荫深处。 A winding path loses itself in the shadowy distance of the woods. 2、集市上有许多小摊子，出售的货物应有尽有。 At the bazaar, there are many stalls where goods of every conceivable kind are sold. 3、我真不知道到底是什么事让他如此生气。 I really don’t know what it is that has made him so angry. 4、新出土的铜花瓶造型优美，可有精细、复杂的传统图案。 The newly unearthed bronze vase is pleasing in form and engraved with delicate and intricate traditional designs. … 5、在山的那一边是一望无际的大草原。 Beyond the mountains there is a vast grassland that extends as far as the eye can see. 6、他们决定买那座带有汽车房的房子。 They decided to buy that house with a garage attached. 7、教师们坚持对学生严格要求。 The teachers make a point of be ing strict with the students. 8、这个小女孩很喜欢她的父亲。 The girl is very much attached to her father. 9、为了实现四个现代化，我们认为有必要学习国外的先进科学技术。 To achieve the four modernization, we make a point of learn ing from the advanced science and technology of other countries. | 10、黄昏临近时，天渐渐暗下来了。 As dusk fell, daylight faded away. 11徒工仔细地观察他的师傅，然后照着干。 The apprentice watched his master carefully and then followed suit. 12、吃完饭弗兰克常常帮助洗餐具。 Frank often took a hand in the washing-up after dinner.
大学英语1教材答案
Unit 1 Vocabulary 1.F ill in the gaps with words……. 1). Respectable 2).agony 3).put down 4).sequence 5).hold back 6).distribute 7).off and on 8).vivid 9).associate 10).finally 11).turn in/out 12).tackle 2. Rewrite each sentence…… 1)…has been assigned to the newspaper’s Paris office. 2)….was so extraordinary that I didn’t know whether to believe him or not. 3)….a clear image of how she would look in twenty years’ time. 4)….gave the command the soldiers opened fire. 3. Complete the sentences… 1).reputation; rigid; to inspire 2).and tedious; What’s more; out of date ideas 3).compose; career; avoid showing; hardly hold back Ⅱ. Synonyms in Context
https://www.sodocs.net/doc/fb2062746.html,posed 2.severe 3.agony 4.extraordinary 5.recall https://www.sodocs.net/doc/fb2062746.html,mand 7.was violating 8.anticipate Ⅲ.Collocation 1.at 2.for 3.of 4.with 5.as 6.about 7.to 8.in; in 9.from 10.on/upon Comprehensive Exercises Ⅰ.Cloze Text-related (1).hold back (2).tedious (3).scanned (4).recall (5).vivid (6).off and on (7).turn out/in (8).career Theme-related (1).last (2).surprise (3).pull (4).blowing (5). dressed (6).scene (7).extraordinary (8).image (9).turn (10).excitement Ⅱ.Translation 1.A s it was a formal dinner party, I wore formal dress, as Mother told me to. 2.H is girlfriend advised him to get out of/get rid of his bad habit of smoking before it took
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结构力学习题 第2章平面体系的几何组成分析2-1～2-6 试确定图示体系的计算自由度。 题2-1图题2-2图 题2-3图题2-4图 题2-5图题2-6图 2-7～2-15 试对图示体系进行几何组成分析。若是具有多余约束的几何不变体系，则需指明多余约束的数目。
题2-7图 题2-8图题2-9图 题2-10图题2-11图 题2-12图题2-13图 题2-14图题2-15图
题2-16图题2-17图 题2-18图题2-19图 题2-20图题2-21图2-1 1 W = 2-1 9 W - = 2-3 3 W - = 2-4 2 W = - 2-5 1 = W - 2-6 4 = W - 2-7、2-8、2-12、2-16、2-17无多余约束的几何不变体系 2-9、2-10、2-15具有一个多余约束的几何不变体系 2-11具有六个多余约束的几何不变体系 2-13、2-14几何可变体系为
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高英课内考点：第一课：Paraphrase 1、we’re elevated 23 feet. Our house is 23 feet above sea level. 2、The place has been here since 1915,and no hurricane has ever bothered it. The house was built in 1915,and since then no hurricane has done any damage to it. 3、We can batten down and ride it out. We can make the necessary preparation and survive the hurricane without much damage. 4、The generator was doused,and the lights went out. Water got into the generator,it stopped working.As a result all lights were put out. 5、Everybody out the back door to the cars! Everyone go out through the back door and get into the cars! 6、The electrical systems had been killed by water.
The electrical systems in the cars had been destroyed by water. 7、John watched the water lap at the steps,and felt a crushing guilt. As John watched the water inch its way up the steps,he felt a strong sense of guilt because he blamed himself for endangering the family by making the wrong decision not to flee inland. 8、Get us through this mess,will You? Oh,God,please help us to get through this dangerous situation. 9、She carried on alone for a few bars;then her voice trailed away. She sang a few words alone and then her voice gradually grew dimmer and stopped. 10、Janis had just one delayed reaction. Janis didn’t show any fear on the spot during the storm,but she revealed her feelings caused by the storm a few nights after the hurricane by getting up in the middle of the night and crying softly. 英译汉： 1、But,like thousands of others in the coastal communities,John was reluctant to abandon his home unless the family----his wife,Janis,and their seven children,aged 3 to 11---was clearly endangered.
大学英语教程课后答案
新视野大学英语第四册课后答案 Unit 1 III. 1. idle 2. justify 3. discount 4. distinct 5. minute 6.accused 7. object 8. contaminate 9. sustain 10. worship IV. 1. accusing... of 2. end up 3. came upon 4. at her worst 5. pa: 6. run a risk of 7. participate in 8. other than 9. object to/objectedV 1. K 2. G 3. C 4. E 5. N 6.0 7.1 8. L 9. A 10. D Collocation VI. 1. delay 2. pain 3. hardship 4. suffering 5. fever 6. defeat 7. poverty 8. treatment 9. noise 10. agony Word building VII. 1. justify 2. glorify 3. exemplifies 4. classified 5. purified 6. intensify 7. identify 8. terrified VIII. 1. bravery 2. jewelry 3. delivery 4. machinery 5. robbery 6. nursery 7. scenery 8. discovery sentence Structure
IX. 1. other than for funerals and weddings 2. other than to live an independent life 3. other than that they appealed to his eye . . ` 4. but other than that, he'll eat just about everything . 5. other than that it's somewhere in the town center X. 1. shouldn't have been to the cinema last night 2. would have; told him the answer 3. they needn't have gone at all 4. must have had too much work to do 5. might have been injured seriously XIII. 1．B 2.A 3.C 4.D 5. B 6.A 7.B 8.A 9. C 10.A II．D 12.C 13. D 14.A 15. C 16.D 17.B 18.C I9. A 20.D Unit 2 Section A Comprehension o f the text 1. He lived a poor and miserable life during his childhood. 2.Because no one in Britain appeared to appreciate his talent for comedy.His comic figures did not conform to British standards.
《结构力学习题集》(含答案)
第三章 静定结构的位移计算 一、判断题： 1、虚位移原理等价于变形谐调条件，可用于求体系的位移。 2、按虚力原理所建立的虚功方程等价于几何方程。 3、在非荷载因素(支座移动、温度变化、材料收缩等)作用下，静定结构不产生内力，但会有位移且位移只与杆件相对刚度有关。 4、求图示梁铰C 左侧截面的转角时，其虚拟状态应取： A. ; ; B. D. C. =1 =1 5、功的互等、位移互等、反力互等和位移反力互等的四个定理仅适用于线性变形体系。 6、已知M p 、M k 图，用图乘法求位移的结果为：()/()ωω1122y y EI +。 M k M p 2 1 y 1 y 2 * * ωω ( a ) M =1 7、图a 、b 两种状态中，粱的转角?与竖向位移δ间的关系为：δ=? 。 8、图示桁架各杆E A 相同，结点A 和结点B 的竖向位移均为零。 A a a 9、图示桁架各杆EA =常数，由于荷载P 是反对称性质的，故结点B 的竖向位移等于零。 二、计算题： 10、求图示结构铰A 两侧截面的相对转角?A ，EI = 常数。 q l l l /2 11、求图示静定梁D 端的竖向位移 ?DV 。 EI = 常数 ，a = 2m 。 a a a 10kN/m 12、求图示结构E 点的竖向位移。 EI = 常数 。 l l l /3 /3 q
13、图示结构，EI=常数 ，M =?90kN m , P = 30kN 。求D 点的竖向位移。 P 3m 3m 3m 14、求图示刚架B 端的竖向位移。 q 15、求图示刚架结点C 的转角和水平位移，EI = 常数 。 q 16、求图示刚架中Ｄ点的竖向位移。EI ＝ 常数 。 l/2 17、求图示刚架横梁中Ｄ点的竖向位移。 EI ＝ 常数 。 18、求图示刚架中D 点的竖向位移。 E I = 常数 。 q l l/2 19、求图示结构Ａ、Ｂ两截面的相对转角，EI ＝ 常数 。 l/3 l/3 20、求图示结构A 、B 两点的相对水平位移，E I = 常数。
高级英语第一册Unit12 课后练习题答案
THE LOONS 课后习题答案/answer I . 1)The Tonnerres were poor The basis of their dwelling was a small square cabin made of poles and mud, which had been built some fifty years before. As the Tonnerres had increased in number, their settlement had been added, until thc clearing at the foot of the town hill was a chaos of lean-tos, wooden packing cases, warped lumber, discarded car tyres, ramshackle chicken coops, tangled strands of barbed wire and rusty tin cans. 2)Sometimes, one of them would get involved in a fight on Main Street and be put for the night in the barred cell underneath the Court House. 3)Because she had had tuberculosis of the bone, and should have a couple of months rest to get better. 4)Her mother first objected to take Piquette along because she was afraid that the girl would spread the disease to her children and she believed that the girl was not hygienic. She then agreed to do so because she preferred Piquette to the narrator's grandmother, who promised not to go along with the family and decided to stay in the city if the girl was taken along. 5)The cottage was called Macleod, their family name. The scenery there was quite beautiful with all kinds of plants and animals at the lakeside. 6)The narrator knew that maybe Piquette was an Indian descendant who knew the woods quite well, so she tried to ask Piquette to go and play in the wood and tell her stories about woods. 7)Because Piquette thought the narrator was scorning and showing contempt for her Indian ancestors, which was just opposite to her original intention. 8)Because the narrator felt somewhat guilty. Piquette stayed most of the time in the cottage and hardly played with the narrator. At the same time, she felt there was in Piquette something strange and unknown and unfathomable. 9)That was the very rare chance she was unguarded and unmasked, so that the author could perceive her inner world. 10)Her full name is Vanessa Macleod. 11)Just as the narrator's father predicted, the loons would go away when more cottages were built at the lake with more people moving in. The loons disappeared as nature was ruined by civilization. In a similar way, Piquette and her people failed to find their position in modern society. Ⅱ. 1)who looked deadly serious, never laughed 2)Sometimes old Jules, or his son Lazarus, would get involved in a rough, noisy quarrel or fight on a Saturday night after much drinking of liquor. 3)She often missed her classes and had little interest in schoolwork. 4)I only knew her as a person who would make other people feel ill at ease. 5)She lived and moved somewhere within my range of sight (Although I saw her, I paid little attention to her). 6)If my mother had to make a choice between Grandmother Macleod and
结构力学课后习题答案1
习题 7-1 试确定图示结构的位移法基本未知量数目，并绘出基本结构。 (a) (b) (c) 1个角位移3个角位移，1个线位移4个角位移，3个线位移 (d) (e) (f) 3个角位移，1个线位移2个线位移3个角位移，2个线位移 (g) (h) (i) 一个角位移，一个线位移一个角位移，一个线位移三个角位移，一个线位移7-2 试回答：位移法基本未知量选取的原则是什么？为何将这些基本未知位移称为关键位移？是否可以将静定部分的结点位移也选作位移法未知量？ 7-3 试说出位移法方程的物理意义，并说明位移法中是如何运用变形协调条件的。 7-4 试回答：若考虑刚架杆件的轴向变形，位移法基本未知量的数目有无变化？如何变化？ 7-5 试用位移法计算图示结构，并绘出其内力图。 (a) 解：（1）确定基本未知量和基本结构 有一个角位移未知量，基本结构见图。 l 7- 32
7- 33 Z 1M 图 （2）位移法典型方程 11110 p r Z R += （3）确定系数并解方程 i ql Z ql iZ ql R i r p 24031831 ,82 12 12 111= =-∴-== （4）画M 图 M 图 (b) 解：（1）确定基本未知量 1个角位移未知量，各弯矩图如下 4m 4m 4m
7- 34 1Z =1M 图 3 EI p M 图 （2）位移法典型方程 11110 p r Z R += （3）确定系数并解方程 1115 ,35 2p r EI R ==- 15 3502 EIZ -= 114Z EI = （4）画M 图 () KN m M ?图 (c) 解：（1）确定基本未知量 一个线位移未知量，各种M 图如下 6m 6m 9m
大一英语课后题答案
Unit 1 Passage A 3. 1 B 2 D 3B 4A 5A 4.1 elected 2 minimum 3 distinct 4 responsibility 5 pursue 6 expoit 7 restrict 8 equip 9 granted 10 awarded 5 1 at large 2 on the basis of 3 in support of 4 apply for 5 is aiming at 6 1 At the meeting, the scholars raised some challenging questions for the city government. 2 She had taken the money out of the joint account she had with her husband.
3 They will be given a range of topics to choose from. 4 To do this kind of experient needs specialized equipment. 5 Learning to drive was a whole new venture for me. 7 1 Anyone over the age of 18 is eligible to vote. 2 A form to apply for these scholarships is sent by the university to each student before the start of each semester. 3 On the advice of my doctor, I decided t give up smoking. 4 The park is located right in the center of town. 5 The university provides all the materials and facilities we desire. 8 1 Lu Xun is one of t he greatest writer in China and one of the world’s outstanding men of letters. 2 Most graduate students chose literature as their field of study, and the rest made linguistics their choice. 3 People buy what kind of houses to live in on the basis of their special needs and on the advice fo relevant experts. 4 These virtual teaching facilities enable overseas students from Asia and Africa to learn a foreign language in a real-life situation for a minimum of three months. 5 Students should check carefully that they are eligible to join this club before making their decision, as each of them is restricted to only one choice. Passage B 11 1 Because a terrible tragedy took place in America on the morning of September 11th .
大学英语课后练习答案
Unit 11. Vocabulary 1) insert 2) on occasion 3) investigate 4) In retrospect 5) initial 6) phenomena 7) attached 8) make up for 9) is awaiting 10) not …in the least 11) promote 12) emerged 2. Rewrite each sentence 1) There is a striking contrast between the standard of living in the north of the country and the south. 2) Natural fiber is said to be superior to synthetic fiber. 3) The city's importance as a financial center has evolved slowly. 4) His nationality is not relevant to whether he is a good lawyer. 5) The poems by a little-known sixteenth-century Italian poet have found their way into some English magazines. 3. 1) Chinese isn't a subject that can be picked up in a month. You can't accomplish your goal of mastering the language unless you work at it for years. Well, it sounds as if I'm exag-gerating the difficulties, but the fact is I'm only telling the truth. 2) The principal is somewhat disappointed with the performance of the children. From what she has gathered, some of the teaching staff have neglected their pupils. She has just announced that strict work regulations have been made and that they apply to both Chinese and overseas teachers. 3) The teacher-directed and the child-directed approaches to teaching art represent two ex-tremes of opinion. Too many teacher-directed activities cannot be expected to effectively assist children in learning because of the rigid structure. On the other hand, too many child-directed activities may see a curriculum that is totally unstructured and out of con-trol. There are valid reasons to believe a teacher-guided approach would be a superior way to guide children's development. This approach combines some form of structure with the child leading the direction. II. Confusable Words 1. 1) continual 3) continual
结构力学课后习题答案
习题及参考答案 【习题2】【习题3】【习题4】【习题5】【习题6】【习题8】【习题9】【习题10】【习题11】【习题12】【习题13】【习题14】【参考答案】 习题2 2-1～2-14试对图示体系进行几何组成分析，如果是具有多余联系的几何不变体系，则应指出多余联系的数目。 题2-1图 题2-2图 题2-3图题2-4图题2-5图 题2-6图题2-7图题2-8图 题2-9图题2-10图题2-11图
题2-12图 题2-13图 题2-14图 习题3 3-1 试作图示多跨静定梁的M 及Q 图。 (b) (a) 20kN 40kN 20kN/m 40kN 题3-1图 3-2 试不计算反力而绘出梁的M 图。 (b) 5kN/m 40kN (a) 题3-2图 习题4 4-1 作图示刚架的M 、Q 、N 图。 (c) (b)(a)20kN /m 2kN /m 题4-1图 4-2 作图示刚架的M 图。
P (e) (d) (a) (b) (c) 20k N /m 4kN 题4-2图 4-3 作图示三铰刚架的M 图。 (b) (a) 题4-3图 4-4 作图示刚架的M 图。 (a) 题4-4图 4-5 已知结构的M 图，试绘出荷载。 (b) (a) 题4-5图
4-6 检查下列刚架的M 图，并予以改正。 (e)(g)(h) P (d) (c)(a)(b) (f) 题4-6图 习题5 5-1 图示抛物线三铰拱轴线方程x x l l f y )(42-= ，试求D 截面的力。 题5-1图 5-2 带拉杆拱，拱轴线方程x x l l f y )(42-= ，求截面K 的弯矩。 C 题5-2图 题5-3图 5-3 试求图示带拉杆的半圆三铰拱截面K 的力。 习题 6 6-1 判定图示桁架中的零杆。
《高级英语(第一册)》课后翻译习题及答案
Lesson 1 1) Little donkeys thread their way among the throngs of people. little donkeys went in and out among the people and from one side to another 2) Then as you penetrate deeper into the bazaar, the noise of the entrance fades away, and you come to the muted cloth-market. Then as you pass through a big crowd to go deeper into the market, the noise of the entrance gradually disappear, and you come to the much quieter cloth-market. 3) they narrow down their choice and begin the really serious business of beating the price down they drop some of items that they don't really want and begin to bargain seriously for a low price. 4) he will price the item high, and yield little in the bargaining He will ask for a high price for the item and refuse to cut down the price by any significant amount. 5) As you approach it, a tinkling and banging and clashing begins to impinge on your ear As you get near it, a variety of sounds begin to strike your ear. X．1)一条蜿蜒的小路淹没在树荫深处 A zig-zag path loses itself in the shadowy distance of the woods. 2)集市上有许多小摊子，出售的货物应有尽有 At the bazaar there are many stalls where goods of every conceivable kind are sold. 3) 我真不知道到底是什么事让他如此生气。 I really don't know what it is that has made him so angry. 4)新出土的铜花瓶造型优美，刻有精细、复杂的传统图案。 The newly unearthed bronze vase is pleasing in form and engraved with delicate and intricate traditional designs. 5)在山的那边是一望无际的大草原。 Beyond the mountains there is a vast grassland that extends as far as the eye can see. 6)他们决定买那座带有汽车房的房子。 They decided to buy that house with. a garage attached. 7）教师们坚持对学生严格要求。 The teachers make a point of being strict with the students. 8）这个小女孩非常喜欢他的父亲。 This little girl is very much attached to her father.
专业英语课后习题答案
1.two-terminal element 二端口元件 2.associated reference direction 关联参考方向 3.Ohm’s Law 欧姆定律 4.electric field 电场 5.displacement current 转移电流 6.short circuit 短路 7.magnetic field 磁场 8.conduction current 传导电流 1.capacitance 2.capacitor 3.resistance 4.resistor 5.Inductance 6.Inductor We can make two important observations here.在此，我们可以得到两条重要的结论：第一，如果电流是常数，理想电感器的端电压为0，这样电感器在恒量或直流中可以当作短路；第二，在电感器中电流不能瞬时变化，也就是说，在0时间内电流不能以有限量改变。 2 1.能量转换energy conversion 2.正极positive terminal 3串联电路series circuit 4.电路化简方法circuit simplification technique 5.电路分析方法circuit analysis technique 6.阻性电路resistive circuit 7.戴维南和诺顿等效电路Thevenin and Norton Equivalent Circuit 8.节点电压法node-voltage method 9.网孔电流法mesh-current method 10.参考节点reference node We can use those approaches for all circuits,对于所有的电路都可以使用这些方法，但是当电路结构更复杂、引入更多元件的时候，这种直接求解的方法很快就变得麻烦了。此时，可以使用两种常规的分析方法。 3 1. amplify current 放大电流 2. electronic component 电子元器件 3. complex circuit 复杂电路 4. vacuum tube 真空管 5. hand-held calculator便携式计算机 6. integrated circuit chip集成电路芯片 7. semiconductor material 半导体材料 8. microprocessor 微处理器 Bardeen和Brattain认为问题在于液体，所以他们用本质是锗锈的氧化锗来代替液体。Gibney准备了一块特殊的锗片，锗片的一面上有一层绿色的氧化层。12月12日Brattain开始插入接触点。
大学英语课本答案
Unit1 ( b ) 1. dull a. someone’s mind ( c ) 2. pump b. knife ( e ) 3. sweep c. water ( a) 4. read d. throat ( f ) 5. turkey e. the floor ( g ) 6. sore f. dinner 1. After a hectic week treating patients with sore throats and ear infections at his family practice, the 52-year-old physician was ready for a night of home cooking and fellowship at his church’s annual fund -raising dinner. 这位52岁的内科医生在他的家庭诊所忙碌了整整一个星期，治疗那些患有 咽喉疼痛或耳朵感染的病人，这时正准备在他所属教会的年度筹款晚宴上享 受一些家常烹饪，并和教友相聚。 2. They’d simply heard about the good food and were willing to pay $10 to heap their plates and help pay for the church’s new community center. 许多人甚至不是这个教会的会员，他们只是听说这里有美食，愿意花上10 美元饱餐一顿，同时为教会的新活动中心做点贡献。 3. He was relieved to see that his wife had found a clean paring knife. 当他看到妻子给他找到了一把干净的水果刀才放了心。 4. Fortunately, her family never went anywhere without an emergency kit containing a manual resuscitator bag, just in case Shaun had trouble breathing. 庆幸的是，她的家人出门总是带着急救箱，里面有手动苏醒气囊，这是以防 肖恩出现呼吸困难而准备的。 5、We are so thankful that in this age of lawsuits, Dr. Boll was willing to put himself on the line. 在这个容易惹上官司的时代，博尔医生敢于冒这样的风险，挺身而出，实在是太 让人感激了。 Unit2 d. a place made or chosen by a bird to lay its eggs in and to live in 4. give away ( ) c. to cause to be attracted and interested 3. call out ( ) b. to keep a particular quality, feature, etc.2. thrilled ( ) a. to say something loud; shout 1. claw ( )