公共英语二级分类模拟题阅读理解(三)

Wherever people live or work, there's rubbish and people have to clean it up or take it away. Rubbish men come and collect your garbage(垃圾) from the bins outside your home every day. This week a team of highly trained rubbish men are going into space.Among the team of three is Leroy Chiao, a Chinese American astronaut(宇航员). He and two Russians will rocket into space for the long-distance garbage collection at the International Space Station(ISS). The mission also includes making repairs to the generators(发生器) on the space station that recycle waste to produce oxygen and water.They will bring back to earth waste that cannot be recycled. This includes empty food containers, dirty clothes and metal toilet boards.Since the Columbia shuttle blew up on take-off last year, there has been no trash collection from ISS for nearly two years. The buildup of rubbish on board is making life on board very difficult.“It's at the point where we have to figure out a way to handle it. It's limiting our efficiency, as we have to move some items out of the way.”said Michael Foale, an ISS astronaut who returned this April.This year's bad hurricanes delayed the mission, which further increased the problem in the space station. A few weeks ago, two ISS astronauts put some trash into space.In the past, the Russian Mir Space Station(和平号空间站) regularly dumped garbage bags into space. But now international rules forbid it because the objects could cause dangers to the shuttles. Mir was famously dirty. It came down in 2001 after 15 years in orbit(轨道).1 What will the team of highly trained rubbish men do in space?A. They will get back all kinds of rubbish.B. They will do some research on recycling rubbish.C. They will repair the computers on ISS.D. They will get back rubbish that cannot be recycled and repair the generator on ISS.2.he Columbia shuttle_____________ .A.is going to space this weekB.was being repaired last yearC.is used for collecting rubbish in spaceD.was destroyed last year3The underlined word “trash”in paragraph 4 means_________________.A.foodB.rubbishC.containersD.dirty clothes4.hich of the following statements is NOT true?A. Rubbish hasn't been collected from ISS for nearly two years.B. A Chinese American astronaut and two Russians will rocket to ISS this week.C. The generators make some waste produce oxygen and water.D. ISS astronauts never throw rubbish away into space.1. 【答案】D2. 【答案】D3. 【答案】B4. 【答案】D。

pets2级阅读理解试题（3）Very old people do raise moral problems for almost everyone who comes in contact with them. Their values —this can’t be repeated too often —are not necessarily our values. Physical comfort, cleanness and order are not necessarily the most important things. The social services from time to time find themselves faced with a flat with decaying food covered by small worms, and an old person lying alone in bed, taking no notice of the worms. But is it interfering (干涉) with personal freedom to insist that they go to live with some of their relatives so that they might be taken better care of? Some social workers, the ones who clear up the worms, think we are in danger of carrying this concept of personal freedom to the point where serious risks are being taken with the health and safety of the old.Indeed, the old can be easily hurt or harmed. The body is like a car, it needs more mechanical maintenance (机械维修，保养) as it gets older. You can carry this comparison right through to the provision of spare parts. But never forget that such operations are painful experiences, however good the results will be. And at what point should you stop to treat the old body? Is it morally right to try to push off death by seeking the development of drugs to excite the forgetful old mind and to activate the old body, knowing that it is designed to die? You can’t ask doctors or scientists to decide, because so long as they can see the technicalopportunities, they will feel bound to give them a try, on the principle that while there’s life, there’s hope.When you talk to the old people, however, you are forced to the conclusion that whether age is happy or unpleasant depends less on money or on health than it does on your ability to have fun.5.What does the passage mainly tell us?A.The values are different between the old and the young.B.The moral problems raised by old people.C.The personal freedom for the old.D.Old people’s viewpoint on life.解析：主旨大意题。

国家公共英语二级（阅读理解）练习试卷3(题后含答案及解析) 题型有： 3. 阅读理解阅读理解阅读下列短文，从每题所给的四个选项(A、B、C和D)中选出最佳选项。

What are some of the steps a person can take to prevent his house from being broken into while he is away.’? One step is to make sure that the house seems a lived-in one. Living room curtains should be pulled down only half-way. Bedrooms that usually have the curtains pulled down at night should be left down. Another is to make sure that all outside locks are the dead-boh type (双保险). Still another is to leave several IOOW lights burning and make sure that one is in the kitchen. Lights that turned on and off by themselves are the best. Then, too, it is a good idea to leave the radio turned on and set to a talking station. Any type of speaking makes a thief think twice before trying to enter. Finally, while away on holiday, make sure that nothing collects in front or in the house. Particularly, make certain that the newspaper is stopped and that a trusted neighbour has been asked to pick up the mail. Thieves are especially quick to notice piled-up newspapers and overpiled mail boxes.1．Why did the writer begin this piece with question?A．Because he wanted to catch the readers’ attention.B．Because he wanted to have the readers guess the answer before reading.C．Because he wanted to sum up (概括) the topic of the piece.D．Because he wanted to make the readers understand him better.正确答案：A 涉及知识点：阅读理解2．The word “live-in” in this passage means “______”A．left emptyB．lively and cheerfulC．now being used by peopleD．laid inside正确答案：C 涉及知识点：阅读理解3．What does the writer advise the people to do?A．Ask a neighbour to pick up the daily mail.B．Make sure to have lights that turn on and off by themselves.C．Make sure the newspaper is handed over every day.D．Pull the living room curtains down.正确答案：A 涉及知识点：阅读理解4．The most important room to leave a light burning in is the______.A．bedroomB．kitchenC．living roomD．sitting-room正确答案：B 涉及知识点：阅读理解More than 6,000 children were expelled (开除) from US school last year for bringing guns and bombs to school, the US Department of Education said on May 8. The department gave a report to the expulsions (开除) as saying handguns accounted for 58 percent of the 6,093 expulsions in 1996～1997, against 7 percent for rifles (步枪) or shotguns and 35 percent for other types of firearms. “The report is a clear sign that out nation’s public schools are cracking down (严惩) on students who bring guns to school,” Education Secretary Richard Riley said in a statement. “We need to be tough-minded about keeping guns out of our schools and do everything to keep our children safe.”In March 1997, an 11-year-old boy and 13-year-old boy using handguns and rifles shot dead four children and a teacher at a school in Jonesboro, Arkansas. In October, two were killed and seven wounded in a shooting at a Mississippi school. Two months later, a 14-year-old boy killed three high school students and wounded five in Dasucah, Kentucky. Most of the expulsions, 56 percent, were from high school, which have students from about age 13.34 percent were from junior high schools and 9 percent were from elementary schools, the report said.5．From the first paragraph we can infer that in the US schools______.A．students enjoy shootingB．students are eager to be solidersC．safety is a problemD．students can make guns正确答案：C 涉及知识点：阅读理解6．The report from the US Department of Education shows that______.A．the number of the expulsions is not largeB．the number of the expulsions is wrongC．there are soldiers hiding among the studentsD．guns are out of control in US schools正确答案：D 涉及知识点：阅读理解7．The main idea of Paragraph Four shows us______.A．some examples of shoot in US schoolsB．the American’s feelingC．some famous schoolsD．that some teachers were killed by students正确答案：A 涉及知识点：阅读理解8．How many students were shot dead in 1997 in US schools? A．10B．9C．12D．2,255.00正确答案：B 涉及知识点：阅读理解9．From this passage we know that______.A．every American cannot have gunsB．only soldiers and police can have gunsC．every American citizen can own gunsD．teachers have no money to buy guns正确答案：C 涉及知识点：阅读理解。

全国公共英语二级考试模拟试题三（含答案分析）第二部分：英语知识运用第一节：单项选择从A、B、C、D四个选项中，选出可以填入空白处最佳选项，并在答题卡上将该项涂黑．1.She was so angry at all ____he was doing _____she walked outwithout saying a word.A. that, thatB. which; thatC. what; asD. that;which2.Every minute must be made full use of _______our lessons,for the college entrance exam is coming.A. going overB. to go overC. go overD. our going over3.They are going downtown ________bus instead of _______theirbikes.A. by, byB. on; byC. by; inD. by; on4.----- How about a film tonight?----- _______I haven't been to the cinema for a long time.A. Yes, thanks.B. Why not?C. No, go awayD. It's apity.5.----- which _______,bread or rice?----- ________will do.A. had you better eat; BothB. would you like; AllC. do you like most ; NoneD. would you rather have;Either6.----- My God! I have to walk home now, for I just missed thebus.----- That's too bad. You ______it had you set out a bitearlier.A. should have caught.B. had caughtC. would have caught.D. could catch7.More than one teacher _______told him it is important thathe learn English well if he _______abroad.A. had; will goB. has; wants to goC. has; want to goD.have; shall go8.----- Do you see why he hasn't turned up yet?----- Sorry, I don't know _______.A. what the matter isB. how matters stoodC. what is thematter D. how is the matter9.----- Where's John, do you know?----- Oh, _____to hospital.A. he's takenB. he'll be takenC. he's been takenD.he'll take10.----- _______is your English teacher?----- The one in red.A. whoB. whichC. whatD. where11.----- John, may I ask you a favour?----- ______A. I’m sorry, but why?B. Sure, what is it?C. Yes, youcould. D. I’d love to, and I’m busy.12.Where was it _____the road accident happened yesterday?A. whenB. thatC. whichD. how13.______you choose, make sure that it is a good one.A. WhatB. WhereverC. WhicheverD. Which14.He suggested the sports meet be _______because of the badweather.A. put awayB. put upC. put downD. put off15.I didn't manage to work out the problem _______the teacherhad explained how.A. untilB. unlessC. whenD. before第二节：完形填空阅读下面短文，从短文后所给各题四个选项（A、B、C、D中选出能填入相应空白处最佳选项，并在答题卡上将该项涂黑．Si1as Minton's funeral was a quiet 16 . lt was 17 by theonly 18 he had in the world, his niece and nephew, and by afew friends. The priest who 19 20 a hundred miles into thiswild part of the county was now getting 21 for the simpleceremony. Minton, 22 'Minty' as his friends 23 call him, 24 ahard life 25 for gold in a lonely part of Western Australia.He had always refused to work in a gold mine 26 he believedthat he could do better 27 his own. Although he was not aboastful(夸口)person, he had often declared that one day he 28find a lump(块) of gold as big as his head and 29 he wouldretire and live in 30 for the rest of his life. But his dreamsof great wealth 31 came true. For many years he had hardlyearned enough money to keep himself 32 .Two men now gently lifted the rough wooden box that 33Minty's body, but they almost dropped it when they heard aloud cry from the grave-digger. His spade(铁鍬)had strucksomething hard in the rocky soil and he was shoutingexcitedly. Then he held up a large stone. 34 it was covered 35dirt, the stone shone curious1yin the fierce sun1ight: it wasunmistakably a heavy piece of solid gold!16. A. accident B. event C. affair D. inciden17. A. taken B. attended C. joined D. brought18. A. relation B. relations C. relationship D.relationships19. A. travelled B. was travelling C. had travelIed D.used to travel20. A. to B. of C. in D. over21. A. ready B. better C. preparation D. worse22. A. and B. but C. or D. except23. A. liked B. past C. used D. used to24. A. leaded B. had leaded C. had led D. led25. A. look B. looking C. looked D. had looked26. A. because B. so C. even D. only27. A. to B. in C. on D. for28. A. would B. must C. ought to D. for29. A. since B. which C. when D. with that30. A. comfort B. comforts C. comfortable D. comfortably31. A. ever B. never C. always D. once32. A. live B. life C. lived D. alive33. A. contains B. containing C. contained D. havingcontained34. A. Though B. For C. Then D. Because35. A. in B. with C. within D. below第三部分：阅读理解阅读下列短文,从每题所给四个选项（A、B、C和D）中,选出最佳选项，并在答题卡上将该项涂黑。

阅读理解模拟试题(3)(A)Stage plays, at first, seem a lot like films. Both use actors, dialogue and scenery. But if you try to make a film by setting up a camera in front of the stage, you will find it won't work. A film made in this way will leave the audience cold. And even worse you'll be wasting a powerful tool——the camera.A stage is actually a box. One side of the box has been removed so the audience can see what's going on inside. The actors remain at a fixed audience. In the film, however, the camera can bring the audience up close and fix their attention on small but important things: a frightened look, a whisper, a trembling of hands.The camera offers the film maker freedom allowing him to move easily across barriers (界g艮) of time and space. He can show his action in real cities and on real farms. He can also use the camera to change the scene dozens of times in one film. No expert of the stage can do this.1.The main idea of the text is that.A.stage plays and films are two different kinds of artB.it is always disappointing to turn play into filmsC.films have certain advantages over stage playsD.the camera has made film making easy and possible2.What is wrong with making a film by setting up a camera before the stage?A.Fewer and fewer people will go to the theatre.B.The audience cannot see what is going on on the stage.C.The scene cannot be changed from time to time.D.The powerful camera cannot be made good use of.3.Which of the following can show that the camera is a powerful tool?A.It can move easily.B.It can make small things look larger.C.It can show things in the future.D.It can give us a scene of realism.4.In what way are plays different from films?A.Films often use real scenery while plays don't.B.Films can show the past while plays can't.C.Films change scenes while plays don't.D.Film audience can move while play audience can't.5. A suitable title for this text is.A.Stage Plays and FilmsB. The Powerful CameraC. Fewer Plays, More FilmsD. Less Waste, More Freedom(B)Cars!!! Holidays! Thousands of prizes! Hurry!FREE with every packet of SPLASH! Your personal lucky number!Will be among the 500,000 winners!Use SPLASH for the SOFTEST...QIUCKEST... WHITEST WASH!DON'T DELAY... BUY A PACKET TODAY!6.This is .A.an introduction to some productsB.an advertisement for selling goodsC. a direction of a kind of washing machineD. a notice about a football game7.If you want to get prize,.A.don't delay joining us in playingB.you should buy 500,000 packets of splashC.please buy a packet of splashD.please drive a car as quickly as possible8.Those who bought a packet of splash.A.are sure to win a prizeB.are sure to be among the 500,000 winnersC.could get 500,000D.could get the personal lucky number9.Splash is.A. a certain kind of material used for washing in high qualityB.something like a machine used to wash clothesC.the softest, quickest, and whitest car to driveD.one of thousands of prizes for players to win10.Which of the following diagrams （图解）shows the correct relation?• : prize ▲: personal lucky number★: splash ■: carsA. B.C. D.（C）Different Customs and CulturesIf an American is satisfied with you, he will put his thumb and forefinger into a circle. That means OK. But in Brazil, the very sign is considered to be rude. In Poland, a guest usually presents flowers to his hostess. The number must be an odd （奇数）one. Besides, the hostess isn't expected to remove the cover of the bunch of flowers. And usually, red rose is a sign of love.Usually we nod to express our agreement and shake our heads to show disapproval. To our heads to show disapproval. To our surprise these body movements mean the opposite in Bulgaria he differences in customs and cultures in the world are really noticeable. We should learn more about them to avoid them to avoid embarrassment （窘迫）.Then, would you please remember: When in Rome, do as the Romans do?11.In Poland, if a man gives some odd red roses to a woman as a present, it means that he.A.will invite her to a dinner partyB.has not been in love with herC.will invite her to a ballD.has fallen in love with her12.If a Brazilian puts his thumb and index （食才旨）into a circle, it shows that he you.A.will be friends withB. is not satisfied withC. is willing to helpD. is satisfied with13.In Poland, it is for the hostess to remove the cover of the bunch of flowers somebody presented to her.A.impoliteB. politeC. expectedD. unexpected11〜15 DBABC16 〜20 CDAAD 14. In Bulgaria, if a man nods, it means that he with you.A. will have a talkB. disagreesC. will shake handsD. agrees 15. The sentence "When in Rome, do as the Romans do" means "" A. We should learn from the RomansB. We should work as the Romans doC. We should obey its customs when we are entering a countryD. We have been Romans(D)The English author (writer), Richard Savage, was once living in London in great poverty. In order to earn (make) a little money he had written the story of his life, but not many copies of the book had been sold in the shop, and Savage was living from hand to mouth. As a result of his lack of food he became very ill, but after a time, because of the skill of the doctor who had looked after him, he got well again. After a week or two the doctor sent a bill to Savage for his visits, but poor Savage hadn't any money and couldn't pay it. The doctor waited for another month and sent the bill again. But still no money came. After several weeks he sent it to him again asking for his money. In the end he came to Savage's house and asked him for payment, saying to Savage, "You know you owe your life to me and I expected some gratitude (thankfulness) from you.""I agree," said Savage, "that I owe my life to you, and to prove to you that I am not ungrateful for your work I will give my life to you." With these words he handed to him two copies entitle, THE LIFE OF RICHARD SAVES.16. The best title for this text should be "A. A Poor English WriterB. A Skilled DoctorC. A Life for a LifeD. The Life of Richard Savage 17. In the text the sentence "Savage was living from hand to mouth" means " A. Savage had clothes to wear and food to eatB. Savage had no money to buy clothes and foodC. Savage was very poor and iiiD. Savage was too poor to live on18. According to the text, we can imagine that.A. the doctor was poor, tooB. the doctor was skilled and kindC. the doctor was skilled but cruelD. the doctor was glad to have got the two books19. The writer wrote this story just to tell us.A. a funny storyB. an unhappy storyC. a miserable storyD. an ungrateful story 20. Which statement is not true?A. It was the doctor who cured Savage.B. If it hadn't been because of the doctor, Savage might have died.C. The doctor sent bills to Savage for money.D. The doctor himself come to see Savage again.阅读理解模拟试题(3)参考答案1 〜5 CDDAA 6 〜10 BCDAC。

全国公共英语二级考试模拟试题笔试试卷本试卷分第一卷(选择题)和第二卷(非选择题)两局部。

考试时间为120分钟。

第一卷第一局部：听力理解第一节听下面5段对话。

每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最正确选项，并标在试卷的相应位置。

听完每段对话后，你都有10秒的时间来答复关小题和阅读下一小题。

每段对话仅读一遍。

例如，你将听到以下内容：M: Excuse me. Can you tell me how much the shirt is?W: Yes, it's nine fifteen.请看选项：How much is the shirt?［A］ 19.15［B］ 9.15［C］ 9.18衬衫的价格为9镑15便士，所以你选择B项，并在试卷上将其标出。

Answer: ［A］［B］［C］1Where does this conversation most probably take place?［A］ In a shop.［B］ At a hotel.［C］ In a travel agency.2What can we learn from this conversation?［A］ British food price is very high.［B］ The woman usually eats in restaurants.［C］ Food in restaurants is expensive in Britain.3How does this man and woman travel?［A］ By car.［B］ By train.［C］ By ship.4What can we learn from this conversation?［A］ The man is going to Chicago by Airlines Flight 514.［B］ Lucy is going to fly to Chicago.［C］ Lucy is seeing the man off at the airport.5Who is the host?［A］ Barbara.［B］ Anna.［C］ Jack.第二节听下面5段对话或独白。

PETS2-READING-3ASussex police ordered to search for a six-foot, dark-haired youth of about 20 who failed to mug (抢劫) a five-foot, 74-year-old grandmother. The youth rushed at Mrs. West and tied to take her things and money when she was walking out of a church. The result should have been an expected conclusion. Surprisedly, however, when Mrs. West grasped the mugger’s wrist (手腕)，he cried, ”Oh, God! Oh, no! Stop!” Encouraged by these pleas (哀求), she put him in arm lock at which the mugger cried, “Oh, no! Oh! God!” and ran away. “If I hadn’t been carrying my shopping I would really have put him on his back. “said Mrs. West who had practiced judo(柔道) when younger.” When my husband was living, I used to practice throwing him at Christmas”, she explained.1.Why did the youth cry when grasped by the old lady? Because he .A.was sorry for his failureB. couldn’t bear the pain and had to ask for mercyC. felt angry with the old ladyD. became so excited that he couldn’t help doing so2.If the incident hadn’t ended beyond expected conclusion, .A.Mrs. West would have been robbed of her things and moneyB.the mugger should have been defeatedC.Mrs. West would have put the youth on his backD.the mugger should have cried and run away3.What do you think of the youth whom the police ordered to search for? He was NOT .A.a boy of about 20B. a dark-haired young manC. an ill manD. a rather weak fellow4.In your judgement, which of the following might NOT be true?A.Mrs. West had just been to the market and church.B. The mugger knew little about judo.C. Mrs West was a single woman.D. The mugger didn’t get punished in the end.BNipponex Eletuics Amperlite LtdTokyo, Japan 146 O’Leary St27 December 1996 Dublin, IrelandDear Sirs,Improved ways of production make us able to offer you our change of Drilite batteries ( 电池)at a reduced price for large quantities.Further information of the new prices for your market are sent to you together with the letter, and you will see that the price has already reduced 5 per cent. As CIF (成本，保险加运费)to Dublin is included in our prices, you will agree that they are clearly lower than those of producers of the same batteries, both here in Japan and elsewhere. The quality of our producers remains the same --- only the finest chemicals are used. The new prices are for the least orders of 1,000 pounds and will begin from January 1. Immediate sending off is guaranteed becauseenough can be made whenever you require it.We appreciate your past dealing and co-operation ( 合作) with us, and look forward to supplying you in the new year at the new prices.Yours TrulyNipponex Electrics5.The underlined word “guaranteed” in the passage. Probably means .A.in our chargeB. of a little problemC. difficultyD. quite sure6.From the passage we know the quality of the products .A.is as high as beforeB. is lowerC. is improvedD. is reduced7.If the Irish expect to enjoy the 5% of reduction at prices, they should .A.pay the Japanese at least ￡1,000B. order 1,000 pounds of batteries in weightC. order￡1,000 worth batteries at leastD. pay the Japanese ￡1,000 ahead8.Why will the Japanese reduce the price at 5 per cent? Because .(1). the Japanese producer holds a large quantity of stores and can’t sell them out(2).the Japanese have improved their production means and can turn out more products(3).they expect to go on dealing with the Irish in the coming year(4).the Irish think the prices in the past are unfair(5).they try to sell more products in the past are unfair(6).they want to appreciate the Irish’s co-operationA. (1)(3)(5)B. (2)(4)(6)C. (2)(3)(6)D. (1)(2)(6)CWoman have more problems than men in old age. First of all, they have less money—or no money at all — and because of this, they often feel they get less respect , even at home. Quite a large number have no pension(退休费) because they have never worked outside the home, and thirty-eight percent are supported mainly by their husbands or children. Second, a larger number of old women than old men become widow(single women). Men are normally older than the women they marry, and women generally live longer than men. The remarriage among older widows is lower than that among widows(single men). Statistics ( 统计) from 1990 in Shanghai show only 52 percent of elderly women with husbands still living, compared to(与--- 相比)82 percent of men.Because of lower incomes and the difficulty of remarriage, many elderly women who live alone, are poor and have almost no social life. Even an old couple lives with children, it is the woman who ends up doing the work around the house. She cleans the rooms, prepares meals, and takes care of the family. Some 75 percent of them carry out such heavy physical tasks as buying and carrying grain, coal and other supplies for the home. How to improve the quality of life of women in their later years is a question that needs to be dealt with by all the society.9.If they had more money, elderly women .A.would have no more problemB. could live a fairy lifeC. would get more respectD. would need no care of others10.In Shanghai, of 150 elderly women, only have husbands still living.A.75.B.52.C.82.D.78.11.According to the statistics, suppose there are 150,000 elderly men, of them are widowers. A.27,000 B.78,000 C.72,000 D.123,00012.According to the writer, .A.elderly women should be paid wellB. elderly women should live with their familiesC. all people should do something for elderly womenD. housework should not be done by elderly womenDOur surroundings are being polluted faster than ever and it seems that people cannot prevent it. Time is bringing us more people, and more people will bring us more industry, more cars, larger cities, and the growing use of man-made materials.What can explain and settle this problem? The fact is that pollution is caused by man—by his desire(欲望) for a modern way of life. We make “increasing industrialization”(工业化) our first aim. So we are often ready to offer everything: clean air, pure water, good food, our health and the future of our children. There is a constant flow of people from the country-side into the cities, eager for the achievements of our modern society. But as our technological achievements have grown in the last twenty years, pollution has become a serious problem. Isn’t it time we stopped to ask ourselves where we are going—and why? It makes one think of the story about the pilot (飞行员) who told his passengers over the loudspeaker : “I’ve some good news and some bad news. The good news is that we ’re making rapid progress at 530 miles per hour. The bad news is that we are lost and don’t know where we’re going.” The sad fact is that this becomes a true story when speaking of our modern society.13.Man cannot prevent the world from being polluted because .A.the population of the world is increasing fasterB.people use too many man-made materialsC.we have more industryD.we are producing more cars, trucks and buses14.According to the passage, what does man care most among the following?A. Health.B. Industry.C. Clean airD. The future of the children15.The story about the pilot tells us that .A.man knows where the society is goingB.people don’t welcome the rapid de velopment of modern societyC.man can do little about the problem of pollutionD.the speaker is worried about the future of our society16.What dose the writer really want to say in the passage?A.With the development of technology, pollution has become a serious problem.B.We should control the speed of the development to stop pollution.C.It’s time we did something to reduce pollution.D.As industry is growing fast, pollution is the natural result.EA wind tunnel ( 风洞) is used for testing planes or plane models. In a wind tunnel air is blown over a plane or a model placed in a test section. Wind tunnel test sections are different in size depending on airflow speed requirements. Some low-speed tunnels have test sections large enough for a complete small plane. In the very high speed tunnels used for space testing, however, the model may be as small as a pencil.There are two ways of feeding air to the test section. In the constant flow tunnel, airflow is produced by electric fans. It is forced through the tunnel to the test section, then through another tunnel section back to the starting point for reuse. The other way involves ( 卷入) storing high-pressure air in a box, sending it out by a controlling device to pass through the tunnel and test section into another box. This way is usually used for a very short period of high-speed airflow.Wind tunnels are usually used to test planes before they are flown. Problems in a plane can be found when it meets the high-speed airflow in the tunnel. For example, if the wings are built so that they would weaken(become weak) at high speeds, this fact can be discovered in the tunnel, saving many lives and millions of dollars.In a wind tunnel, scientists also find out how different planes will act different speeds. They find out such things as how the air dives by the wing surfaces, how slowly a plane can fly before it starts to drop, and how fast it can climb.17.Some wind tunnel sections are larger than others because .A.they are used large planesB. stronger wind can be produced in themC. they are built to meet a higher speed testD. the wind used in them flows at a lower speed18.Which of the following shows the right way of feeding air to a wind tunnel section used fora high speed test?A.Airflow is produced by electric fans.B. High-pressure air is produced by electric fans.C. Sending high-pressure air by electric fans to another box.D. Sending high-pressure air by a controlling device into another box.19.“This fact” in paragraph 3 of the text refers to .A. the wing are not good enoughB. it costs a lot to test a planeC. some problems are found with the planeD. many people will die in a plane accident20. A wind tunnel can be used to find out .A. how fast a plane can riseB. how smooth a plane’s surface isC. if a plane can land in a very strong windD. if a plane will drop when flying at a low height 1-5 BACDD 6-10 ACCCD 11-15 DCCBD 16-20 CDDAA。