unit3新标准大学英语视听说综合教程网上作业答案

Section A: Choose the best way to complete the sentences.

1. The researcher had a ____ that academic achievement was

linked to culture.

A. suspense

B. suspicion

C. suspect

D. suspicious

2. I would love to go to graduate school but the ____ cost is

too great.

A. finance

B. financing

C. financier

D. financial

3. It is absolutely ____ for children to learn foreign

languages as early as possible.

A. criticism

B. critic

C. critical

D. criticize

4. There is no one I ____ more than Albert Einstein. He's the

reason I began studying physics.

C. extent

D. extinct

12. He suggested that I ____ my lecture notes to the computer.

A. translate

B. transfer

C. transform

D. transit

13. Galileo was heavily criticized because many people thought

his ____ ideas challenged the authority of religion.

A. mundane

B. regular

C. routine

D. radical

14. Please ____ a list of questions to ask the scientist for

an interview.

A. generate

B. general

C. generation

D. generic

15. Early man discovered that you could ____ sticks together

and make fire from the friction.

A. touch

B. rub

C. push

D. pull

16. How many famous biologists can you ____?

A. exemplify

B. horrify

C. identify

D. intensify

17. Professor Clark's comment only makes sense if you

understand the ____ of the entire lecture.

A. context

B. subtext

C. pretext

D. textbook

18. The ____ came up with many great ideas, but she couldn't

prove any of them.

A. theory

B. theorem

C. theories

D. theorist

19. Don't ____ the new students with too much homework right

away.

A. underwhelm

B. overwhelm

C. underrate

D. overrate

20. What do you think is the ____ fist step towards proving our

hypothesis?

A. logic

B. logician

C. logistic

D. logical

Section B: Fill in each of the blanks with a suitable word.

21.

Obviously, I didn't fail the exam on purpose; in fact, I studied all week for it!

Your answer Correct answer

o n on

22.

Professor White likes to go his theories point by point, but I still don't believe they're correct.

Your answer Correct answer

through

23.

Many fans had waited ten hours outside the hotel to catch a glimpse

of

their heroine.

Your answer Correct answer

o f of

24. Which

contrast to Chinese students, American students have much more time for activities like sports.

Your answer Correct answer

W hich In

25.

He was about to call Phil when the phone rang.

Your answer Correct answer

a bout about

26.

It wasn't much of a speech, but it's still one of the most famous in history.

Your answer Correct answer

o f of

He wrapped his arms around her wife's waist and gently pulled her back to 27.

lean on him.

Your answer Correct answer

o n through

28.

My new boss wants results by next week. So much after a period of adjustment.

Your answer Correct answer

a fter for

29.

"Don't get yourself bogged down by minor details," the teacher told her students.

Your answer Correct answer

b y in

30.

Jessica peered at the darkness, but for a while could see nothing..

Your answer Correct answer

a t into

Part II: Banked Cloze

Questions 31 to 40 are based on the following passage.

If I had to (31)identify one teacher who had the greatest effect on me, it would have to be my second-grade teacher Mrs Turner. Why? When I was in second grade, I really didn't like school. The small classroom (32)overwhelmed with noisy kids was not a(n) (33)extent that made me want to learn. Quite the opposite, in fact; I thought it was (34)agony!

Mrs Turner, however, knew that it was (35)critical for young children to think (36)creatively. She was determined to have us all become active little (37)thinkers. Her approach was actually very (38)effective! She quickly became a(n) (39)mentor to many students, including myself. With Mrs Turner's help, I learned how to enjoy reading and learning. She helped me (40)solve my six-year-old dilemma of not wanting to go to school. Thank you, Mrs Turner, wherever you are!

Your answer Correct answer

(31) identify identify

(32) overwhelmed overwhelmed

(33) extent setting

(34) agony agony

(35) critical critical

(36) creatively creatively

(37) thinkers thinkers

(38) effective effective

(39) mentor mentor

(40) solve solve

Part III: Reading Comprehension

Questions 41 to 45 are based on the following passage.

Have you ever wondered why some people are better at math than others or why

certain people seem to have an innate artistic ability? Researchers are constantly trying to understand how the human brain functions and how its structure affects the way people think and learn. It is clear that not everyone develops these skills in the same way.

An interesting way to think about these differences is by classifying people as dominant in either "right brain" or "left brain" thinking. The brain is divided in half and research has proven that these opposing hemispheres are responsible for different learning styles and thinking processes.

Left-brain thinkers are usually very logical, rational, and analytical. They tend to view things as individual parts rather than as a whole. General characteristics of left-brain thinkers are that they prefer classical music, are good at math, approach assignments literally, and are well-organized.

In contrast to their left-brain counterparts, right-brain thinkers are typically more intuitive, synthesizing, and subjective. They also tend to view things holistically, or as a whole, rather than as a collection of parts. Right-brain thinkers have been shown to prefer rock and pop music, are good at sports and art, approach assignments creatively, and are spontaneous and unpredictable.

An interesting fact is that the hemispheres of the brain actually control opposite sides of the body. In other words, the left half of the brain controls the right side of the body, and vice versa. While left-handed people are a minority of the population, there are many famous people who had this trait, including Michelangelo, Leonardo da Vinci, Lewis Carroll, Helen Keller, and three of the past four US Presidents. The left-right brain divide might explain why so many artists, actors, authors, and poets write with their left hands!

41. Which of the following subjects might a right-brain

thinker excel at?

A. Algebra.

B. Chemistry.

C. Creative writing.

D. History.

42. According to the article, left-brain thinkers tend to like

_____.

A. sports

B. poetry

C. assignments

D. organization

43. What evidence is used to support the difference between

left- and right-brain thinking?

A. Research has proven the brain's hemispheres

have different functions.

B. Many artists are left-handed.

C. The brain's hemispheres control opposite

sides of the body.

D. Only smart people are left-handed.

44. With which of the following statements would the author

probably agree?

A. US Presidents are intuitive and think

creatively.

B. All famous people are right-brain thinkers.

C. Anyone can be good at math.

D. Walt Disney was probably a left-brain thinker.

45. This type of writing would be best described as ______.

A. entertaining

B. informative

C. persuasive

D. personal

全新版大学英语视听阅读答案

Unit 1 Warming up: 1. 1.1 imports 1.2 scent 1.3 detect 1.4 sniff 1.5 detector dogs 2 f e d c b a watching part1 1 morning run,different,something different,international airports,illegal imports,passengers 2 mixed odors An apple,amango Carry-ons,bags Suitcases Learn to sit Work,comes out Part2 1 F f f t t 2 Supposed Far ahead Children The public Food drive 3 Things don’t always go so smoothly for Stockton though. You’ve got to work with me.I’m your partner,remember? So what does it take to be a “detector dog”? They’ve got to have real food drive because they work for food. Even after they eat a dinner,they’re still ready to eat some more. Part3 1 animal shelters given green jacket,detector dogs adopted 2.1 work out Stay with us Suits Applicants A good fit

大学英语综合教程1课后习题答案

Unit 1 Part Ⅱ Reading Task Vocabulary Ⅰ1. 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 12)tackle 2. 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. 5)buying bikes we’ll keep turning them out. 3. 1)reputation; rigid; to inspire 2)and tedious; What’s more; out of date ideas 3)compose; career; avoid showing; hardly hold back Ⅱviolating Ⅲ;in upon Comprehensive Exercises ⅠCloze back; tedious; scanned; recall; vivid; off and on; turn out/in; career ; surprise; pulled; blowing; dressed; scene; extraordinary; image; turn; excitement ⅡTranslation As it was a formal dinner party, I wore formal dress, as Mother told me to. 2)His girlfriend advised him to get out of /get rid of his bad habits of smoking before it took hold. 3)Anticipating that the demand for electricity will be high during the next few months, they have decided to increase its production. 4)It is said that Bill has been fired for continually violating the company’s safety rules. /Bill is said to have been fired for continually violating the company’s safety rules. 5)It is reported that the government has taken proper measures to avoid the possibility of a severe water shortage. /The local government is reported to have taken proper measures to avoid the possibility of a severe water shortage. 2.Susan lost her legs because of/in a car accident. For a time, she didn’t know how to face up to the fact she would never (be able to) walk again. One day, while scanning (through) some magazines, a true story caught her eye/she was attracted by a true story. It gave a vivid description of how a disabled girl became a writer. Greatly inspired, Susan began to feel that she, too, would finally be able to lead a useful life. Unit 2 Part ⅡReading Task Vocabulary Ⅰ1. 1)absolutely 2)available 3)every now and then 4)are urging/urged 5)destination 6)mostly 7)hangs out 8)right away 9)reunion 10)or something 11)estimate 12)going ahead 2. 1)in the examination was still on his mind. 2)was completely choked up by the sight of his team losing in the final minutes of the game. 3)was so lost in study that she forgot to have dinner. 4)has come up and I am afraid I won’t be able to accomplish the project on time. 5)of equipping the new hospital was estimated at﹩2 million. 3. 1)were postponed; the awful; is estimated 2)reference; not available; am kind of 3)not much of a teacher; skips; go ahead Ⅱ;on Ⅲor less of/sort of 4. kind of/sort of 5. more or less 6. or something Comprehensive Exercises ⅠCloze up; awful; practically; neighborhood; correspondence; available; destination; reunion; Mostly; postponing; absolutely ; savings; embarrassment; phone; interrupted; touch; envelope; signed; message; needed ⅡHalf an hour had gone by, but the last bus hadn’t come yet. We had to walk home. 2)Mary looks as if she is very worried about the Chinese exam because she hasn’t learned the texts by

川大《大学英语(四)》第二次网上作业答案

首页- 我的作业列表- 《大学英语（四）》第二次网上作业答案 你的得分：97.5 完成日期：2014年02月27日16点38分 说明：每道小题括号里的答案是您最高分那次所选的答案，标准答案将在本次作业结束(即2014年03月13日)后显示在题目旁边。 一、单项选择题。本大题共30个小题，每小题 2.5 分，共75.0分。在每小题给出的选项中，只有一项是符合题目要求的。 1.— I wish you success in your career. — _______ ( D ) A.You are welcome. B.You think so. C.Yes, please. D.The same to you. 2.— Let's go to the library this afternoon. — _______ ( D ) A.Yes, that's right. B.No. I can't. C.What about you? D.That's a good idea. 3.— Madam, do all the buses go downtown? — _________ ( D ) A.Wow, you got the idea. B.No, never mind. C.Pretty well, I guess. D.Sorry, I'm new here. 4.— Are you feeling better today, Jack? — _______ ( C ) A.There must be something wrong. B.Just have a good rest. C.Yes, thank you, doctor. But I still don't feel good. D.Don't worry about me.

大学英语综合教程答案

3.Many products for sale seem to scream at us, "Buy me! Buy me!" Advertising is a big busin ess in our world with many products competing for our attention. Think of the last time you boug ht clothes. You probably noticed the variety of colors, patterns, fabrics and brands you could choo se from. Which kind of soft drink would you like to have today or what kind of computer do you want? Advertisers are skilled in the art of making their products look the best to appeal to our se nses. But products aren't always what they seem. Sometimes advertising is deceptive and as cons umers ,we must be careful about what we choose to buy. It is important to learn to compare prod ucts and identify our purpose in purchasing the things we need. But the good thing about advertising is that it helps people to make decisions and refine thei r choices. In the United States, the Ad Council creates timely public service messages to the nation. Th eir purpose is to raise awareness of public problems that citizens can respond to. Inspiring ads ca use individuals to take action and even save lives. Pollution in America, for example has been red uced over the years because of the creative Public Service advertisements that the council provid es" Please, please don't be a litter bug, 'cause every 'litter bit' hurts." Many families have taught t heir children to place litter in the trash can in response to this catchy phrase, which has affected g enerations as each succeeding generation has taught their children not to litter. 4.Nature imposes difficult conditions upon the earth from time to time . The tornado and fo rest fire destroy natural resources ,homes and other structures ,and very often harm or kill peopl e . Technological tragedies happen with little or no warning as we see trains crash and airplanes f all from the sky shortly after take-off. As tragic as calamities are , they seem to bring out the best in human nature . people trained in em ergency care arrive at the scene and begin assisting the inj ured .Others come with equipment to remove debris. Men , women ,and young people willingly c ome to the scene of an accident , hoping to be of help in some way . These selfless acts of kindne ss make our world a better place . compassion eases the wounds of calamities. American Airlines flight number 587 crashed less than three minutes after taking off from JF K Airport in New York in November,2001. Witnesses s aw an engine fire develop on the plane’s nu mber one engine located under the left wing of the aircraft .seconds later ,the airliner crashed int o eight homes ,completely destroying four of them .All 260 people aboard the airplane were kille d along with six people at the crash site ,leaving many people to mourn the loss of their loved on es .the residents (people who live in the area of the crash ) rallied together to comfort those griev ing, while others removed bodies from the wreckage and did the necessary clean-up. 工程实施困难的条件下在地上的时候。龙卷风和森林火灾破坏自然资源,房屋和其他建筑物,和经常伤害或杀死人。技术的悲剧发生在很少或没有预警,因为我们看到火车事故,飞机起飞后不久就从天空坠落。一样悲惨的灾难,他们似乎显示出人性中最好的。在急诊受训的人到达现场并开始帮助受伤的人则跟设备清除残骸。男人,女人,和年轻人自愿来到事故现场,希望能有帮助。这些无私的善举让我们的世界变得更美好。同情减轻灾害的伤口。 美国航空公司587号航班坠毁不到三分钟后从纽约肯尼迪机场起飞,11月2001。目击者看到一个引擎火灾发展在飞机上的1号引擎位于下飞机的左翼,接着后,客机坠毁八家,完全摧毁了四个260名乘客的飞机遇难连同6人在事故现场,造成许多人悼念失去的亲人,居民(住在崩溃的面积)聚集在一起,安慰那些悲伤,而另一些人则从残骸,并把尸体移走必要的清理。 5.Success can be reached in different ways by people in different careers. Bill Gates began at age to program computers,His vision for personal computing has been central to the success of M icrosoft Corporation, the company he founded with his childhood friend in 1975 . The former CEO of General Electric, Jack Welch, is a business legend. A famous quote by Mr. Welch is,” Chang before you have to. ”He believes in leading by example and encourages his empl oyees to do their best every day. Michael Jordan s aid,”I accept failure, but I can’t accept not trying.” He is one of the best athl etes to ever play team sports. His great smile, athletic achievements, and pleasant personality ha ve made him one of the most famous athletes in the world. Michael Jordan spent a lot of time pla ying basketball as a child but in senior middle school he was taken off the team . Instead of giving up , he worked through adversity and became the greatest basketball player yet .

unit6新标准大学英语-视听说-综合教程-网上作业-答案

Part I: Vocabulary and Structure Section A: Complete each sentence using the correct word or expression from the box. comparable illusion combination addicted acceptable objective endurance cooperate favourable demonstrate princess crucial intention payment item retail global claim fashion estimate 1. Sandra spent the weekend shopping at the outlets. Your answer Correct answer retail 2. My parents thought it for me to have a credit card until I was 19. Your answer Correct answer acceptable 3. I don't have a(n) impression of that shop because the salesgirl was very rude to me when I was in there last. Your answer Correct answer favourable 4. "What form of would you like to use?" Your answer Correct answer payment 5. When I go shopping with my wife, I have no about who is in control. Your answer Correct answer illusion 6. I that about 30 per cent of my salary is spent on new shoes. Your answer Correct answer estimate 7. You need a lot of go shopping with Sue; she likes to shop from dawn to dusk!

大学英语视听说教程原文及标准答案

大学英语视听说教程原文及答案

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Uint1 II. Basic Listening Practice 1. Script M: I’m beside myself with joy. I’m so lucky. Guess what? I’ve won a lit o f money in the lottery. W: Yeah? Well, you do know that money is the root of all evil, right? Q: What does the woman mean? 2. Script W: Mary was furious. Her son wrecked up her car. M: He shouldn’t have driven a car without a driver’s license. He‘s stil l taking driving lesson. Q: What do we know about Mary’s son? 3. Script M: Susan, I hear you’re going to marry that guy. Some people think you’ll regret it. W: Is that so? Only time tell. Q: What does the woman imply? 4. Script M: Mary, I just want to say how sorry I was to learn of your mother’s passing. I know how close you two were? W: Thank you. It was so sudden. I’M still in a state of shock I don’t know what to do. Q: Which of following is true? 5. Script W: I get furious at work when my opinions a ren’t considered just because I’m a woman. M: You should air your view more emphatically and demand that your vice be heard. Q: What is the woman complaining about? Keys: 1.C 2.B 3. D 4.A 5.D III. Listening In Task 1: Soft answers turn away wrath. Mary: Da m! You’re spilled red wine on me. My new dress is ruined. John: I’ m terrible sorry! What can I do to help? Here’s some water to wash it off. Mary: Stop splashing water on me! Oh, this is so embarrassing! I’m a mess. John: Well, you do look a little upset. Please don’t blow up. Don’t lose your cool. Mary: Hmm, you’ve got the nerve talking like that! Who shouldn’t fly off the handle? This dress cost a fortune. John: You look really cute when you’re mad. I kid you not. Some people do look attractive when they are in a rage. Mary: This is very expensive dress. I saved for months to buy it, and now it’s ruined. Look at this stain! John: Accidents do happen. Give me your dress, and I’ll take it to the cleaners. Mary: Sure! You want me to take it off right here in public and give it to you? I don’t even know you! John: This might be a really goof time to get acquainted. I’m John Owen. Mary: Mmm, at least you’re polite. I guess I really shouldn’t have flared up. After all, it was an accident. I’m Mary Harvey. John: Come on. I’ll take you home. You can change your clothes, and I’ll get the dress cleaned for you. Mary: Now you’re talking. Thanks. You’re a real gentleman. John: You’d better believe it. I’m glad to see that you’ve cooled down. Feel look a bite to eat aft erward? I’m starving. Mary: Ok. You’re pretty good. I’m not nearly as mad. If you can get this stain out, I’ll be very happy. John: I’ll try my best. But if I can’t get the stain out, please don’t let your happiness turn to wrath. 1. Which of the following would be the best title for the dialog? 2. Why does the woman get angry? 3. What does the man say to please the woman when she looks angry? 4. Why does the woman say the man is a real gentleman? 5. What is the man’s final proposal? Keys: 1D 2.A 3.C 4.B 5.C Task 2: Big John is coming! Script A bar owner in the Old West has just hired a timid bartender. This (S1) owner of the establishment is giving his new hire some instructions on (S2) running the place. He tells the timid man, “If you ever hear that Big John is coming to town, (S3) drop everything and run for the hills! He’s the biggest, nastiest (S4) outlaw who’s ever lived!” A few weeks pass (S5) uneventfully. But one afternoon, a local cowhand comes running through town (S6) yel ling, “Big John is coming! Run for your (S7) lives!” When the bartender leaves the bar to start running, he is knocked to the ground by several townspeople rushing out of town. (S8) As he’s picking himself up, he sees a large man, almost seven feet tall. H e’s muscular, and is growing as he approaches the bar. He steps up to the door, orders the poor barkeep inside, and demands, “I want a beer NOW!” He strikes his heavy fist on the bar, splitting it in half. (S9) The bartender nervously hands the big man a beer, hands shaking. He takes the beer, bites the top of the bottle off, and downs the beer in one gulp. As the terrified bartender hides behind the bar, the big man gets up to leave, “Do you want another beer?” the bartender asks in a trembling voice.“Dang it, I don’t have time!” the big man yells, (S10) “I got to get out of town! Don’t you hear Big John is coming?” Task3: A View of Happiness Script Dr. Smith has proposed a reasonable, if perhaps somewhat oversimplifies, view of happiness. According to his theory, happiness might be described as a state if balance. And when human or certain animals achieve that balance, they rend to remain in that condition in order to repeat the happy feeling. To illustrate this, we may study two magnets. When their positive and negative poles meet, they are comfortably joined, and they remain there. In other words, they have attained a balance or state of happiness. If on the other hand, one of the poles is reversed, and positive pole is presses against positive pole, there is resistance, instability, imbalance a state of unhappiness. Animals with some degree of intelligence seem to find happiness in reinforcement. Once they have gained one or more of their goals such as food, and water, they learn to repeat the actions that led to satisfaction of those goals. This repetition or reinforcement produces a state of balance or sense of happiness. According to this theory, only animals with a

大学英语综合教程答案

Key to Exercises Opener Mary is thinking of getting a tattoo tomorrow afternoon. She asks Mel to join her, but Mel cannot because she has to work tomorrow. And then Mary invites Mel to go to a party tomorrow night. Mel hesitates at first, but finally decides to go with Mary. They will meet at eight o’clock. Abbreviation Meaning 1. TGIF Thank God it’s Friday 2. AMA Ask me anything 3. OMG Oh my God! 4. YOLO You only live once 5. FOMO Fear of missing out 6. FYI For your information 7. LOL Laugh out loud 8. TBH To be honest 9. PPL People 10. ETA Estimated time of arrival Transcript: A: Hey, Mary. B: Hey, Mel. A: TGIF.

B: TGIF. A: Mel, I need some advice on something. B: AMA A: Yeah, thanks. I’m thinking of getting a tattoo. B: OMG! Really Are you serious A: Well, YOLO. B: That’s true. A: Well. B: When are you going to do it A: I’m thinking tomorrow afternoon. Do you want to come B: Oh, I’d love to come, but I’ve got to work tomorrow. Oh, major FOMO. A: What a shame! B: Yeah, A: Well, FYI, there’s a party tomorrow night. And if you are not busy, you can come to that instead. B: I’m not busy, but TBH I really need to take it easy this weekend. A: What That’s so not like you. B: LOL, that’s true. A: Party is in Hackney Wick. It’s gonna be good, good music, good PPL. B: Oh, major FOMO again. Oh, what the hell Yes, why not I’ll go.

四川大学网络教育学院2013《大学英语(一)》课程第一次网上作业答案

四川大学网络教育学院2013高等数学第一次作业 完成日期：2013年05月22日 12点15分 说明：每道小题括号里的答案是您最高分那次所选的答案，标准答案将在本次作业结束(即)后显示在题目旁边。 一、单项选择题。本大题共40个小题，每小题 2.5 分，共100.0分。在每小题给出的选项中，只有一项是符合题目要求的。 1. — Hi! How do you do, Zhang? — _______ ( C ) A.How are you? B. Good afternoon. C.How do you do? D. Very fine. 2. —Jane, I’m coming to say good-bye. I’m leaving tomorrow. — _______ ( D ) A.I’m sorry. B.Oh, no. Why? C.Go slowly. D.Why soon? Can’t you stay a few days longer? 3. — Sam, this is my friend, Jane. —_______ ( C ) A.I’m Sam. B.How are you? C.Glad to meet you, Jane. D.Very well, thank you. 4.

— May I know your name, please? — _______ ( C ) A.I’d rather not. B.Yes, you may. C.Jane Edwin. D.No, please don’t 5. —Haven’t seen you for ages. How are you? — _______ ( D ) A.Thank you a lot. B.It’s several years. C.Long time no see. D.Just so-so. 6.We’re glad that something _______ has come out of the situation. ( A ) A.positive B.negative C.position D.negation 7.We’ll discuss the problem later _______ detail. ( D ) A.of B.on C.at D.in 8.Each member is given a special exercise routine that is _______ for his or her needs. ( A ) A.constant B.appropriate C.bad D.hopeful 9.Mrs. Black became a(n) _______ at making desserts. ( A ) A.expert B.worker C.host D.

全新版大学英语视听阅读4视频听力原文翻译

Unit 1 The Perfect Swarm Narrator: Damage from swarms of locusts can reach disastrous proportions. A single swarm of desert locusts can consume over 70,000 metric tons of vegetation a day. There is, however, one continent that’s locust-free: North America. 旁白：蝗虫群的伤害可以达到灾难性的程度。一个单一的沙漠蝗虫可以消耗超过70000吨的植被一天。然而，有一个大陆是蝗虫自由：美国北部。 Interestingly enough, this wasn’t always true. For hundreds of years, the Rocky Mountain locust was a common pest in the American West. Back in the mid-1800s, thousands of pioneers journeyed across the U.S. in search of free land and new opportunities. They settled on the frontier of the western states, and began to farm the land intensively, growing corn and other crops. 有趣的是，这并不总是真实的。几百年来，落基山脉的蝗虫是美国西部的一种常见害虫。早在19世纪中叶，成千上万的先驱者跨越美国在自由的土地和寻找新的机会。他们定居在西部边境，并开始对土地进行集中耕种，种植玉米和其他农作物。 Then, in 1875, out of nowhere, a rare combination of air currents, drought, and basic biology produced the right conditions for an unthinkable event, the worst storm ever recorded, the “perfect swarm.” It cam e over the horizon like a strange, dark cloud. Not millions, not billions, but trillions of insects, sweeping through the land like a living tornado. Those who saw the incredible event and survived never forgot what they witnessed. 然后，在1875，走出无处，一个罕见的组合，空气电流，干旱，和基本生物学产生了正确的条件为一个不可想象的事件，最坏的风暴有史以来，“完美的群”，它在地平线上像一个奇怪的，黑暗的云。不是上百万，不是数十亿，而是数以万亿计的昆虫，像一个活生生的龙卷风席卷过大地。那些看到了令人难以置信的事件，并幸存下来的人从来没有忘记他们见证了什么。 The swarm came together over the state of Texas, and soon moved quickly across the frontier in a huge destructive cloud that was nearly 3,000 kilometers long. The storm spread north towards North Dakota. The locusts eventually went as far west as the Rocky Mountains, leaving a path of devastation and destruction wherever they went. 群聚在德克萨斯州的上空，并很快在一个巨大的破坏性的云，是近3000公里长的边界迅速移动。风暴向北到了北。蝗虫最终在落基山脉的西部，离开了一条破坏性的道路和毁灭的道路。 An account from one person who observed the swarm described the locust storm. The locusts came down from the sky like hail. Frightened people ran screaming into their homes as the locusts’ claws dug into thei r skin and hung upon their clothing. They heard sharp cracks as the insects came underfoot. The large locusts were everywhere, looking with hungry eyes turning this way and that. Their bodies blocked the sun, bringing darkness along with the destruction. 一个来自一个人的帐户，观察到群描述了蝗虫风暴。蝗虫从空中落下如冰雹。当蝗虫的爪子被挖进他们的皮，挂在他们的衣服上时，吓得人们尖叫着进入他们的家里。随着昆虫来踩在脚下他们听到尖锐的裂缝。大蝗虫到处都是，看着饥饿的眼睛转动着这样的方式。他们的身体挡住了太阳，带来了黑暗与毁灭。 Crop damages were absolutely astonishing. If such destruction were to happen today it would cost an estimated US$116 billion, more than the most costly hurricane in American history. And then, something remarkable happened: the Rocky Mountain locust simply vanished. 农作物的损害是绝对惊人的。如果这样的破坏将发生在今天，它将花费大约116美元，超过