2021年6月大學(xué)英語四級考試模擬試題（7）

1、XX年6月大學(xué)英語四級考試模擬試題（7） xx年6月大學(xué)英語四級考試模擬試題（7） _：xx-05-13 Directions: There are four reading passages in this part. Each passage is followed by some questions. For each question there are four suggested answers _rked A, B, C and D. You should choose the one best answer and blacken the corresponding lette

2、r on the ANSWER SHEET with a pencil. Passage 1 How do you send a message to a submerged sub _rine, particularly one carrying mi Water _y not look like a barrier to munications, but appearan _s are de _iving. Water strongly absorbs all electro _gic waves ex _pt blue green light and extremely low freq

3、uency radio waves. The very low frequency waves now used to contract sub _rines perates only a short distan _ into the o _an, so the craft must either su _ _ or send up and antenna (天線) to re _ive messages, thereby increasing its weakness. A laser system - aurate over long distan _s and capable of c

4、arrying more data than the very low frequency waves - would talk to sub _rine at their nor _l depths. In the system, a very broad beam spreading out freely in all directions would be scanned (掃描) over thousands of square miles of o _an so that it wouldnt endanger boats, birds or fishor the sub _rine

5、s it is supposed to reach. Sin _ only a s _ll fraction of the laser system will _ke its way through the air and o _an, re _ivers mounted on the sub _rines must be able not only to detect the laser but also to discriminate between it and sunlight. So, military scientists are now working hard on speci

6、al filter that allow through only the precise wavelengths emitted by the laser. The filtered light, when transformed into electrical signal, can then be decoded. Military planners are confident that laser munication with sub _rines is feasible. 1. Which of the following does the passage _inly discus

7、s? A. Missiles carried by submerged sub _rines. B. Messages sent by submerged sub _rines. C. Blue-green lasers used by submerged sub _rines. D. The way to send a message to submerged sub _rines. 2. Which of the following is TRUE aording to the passage? A. Water is a barrier to radio munication. B. L

8、asers have found wide application in sub _rine munication. C. Water absorbs all kinds of electro _gic waves. D. Very low frequency radio waves cannot be used to contact sub _rines. 3. Which of the following is NOT true of a laser system? A. It is able to _ke its way through water. B. It is able to m

9、unicate with sub _rines at work. C. Its beam reaches a submerged sub _rine with the help of an antenna. D. It is able to carry more data than low frequency waves. 4. The referen _ word “it” (Senten _ 1, para.3) refers to . A. the air B. the laser beam C. the o _an D. the sub _rine 5. Who would be ve

10、ry much interested in the passage? A. Missile builders B. Military scientists C. Fishermen D. Ship builder Passage 2 The West begun to take more noti _ of the East. The fifth volume of an enormous work re-assessing the Chinese contribution to scien _ and technology is to be published next year. The

11、first volume, which was published twenty years ago, set the tone for the whole work. In it, eviden _ was given to show that _ny inventions which, until then, western historians had claimed for Europe, were _de first in China. The attempt to rewrite the in _ectual history of the world was not re _ive

12、d without protest by some reputable historians. However, the eviden _ that has been presented so far in the first four volumes has persuaded _ny historians who were skeptical at first. Chinas invention of paper, printing, the _gic pass and gunpowder has never been disputed, but this new history has

13、added advan _d bridge design, mechanical clocks, paddle boats and _ny other inventions to the list. In the four volumes published so far no attempt has been _de to explain why China has not kept up with the West in scien _ and technology in modern times. It is probable that the answer is to be found

14、 in the social and economic history of China, where a static society under a relatively benevolent regime of scholar-gentry contrasts with the potentially revolutionary and dynamic society of the West at the end of the Middle Ages. In re _nt years, the Chinese gover _ent has been _ every effort to c

15、atch up with the West again, and there is little doubt that the gap is being redu _d year by year. But will China avoid the Wests mistakes? 6. So far, how _ny volumes have been published? A. Five. B. Four. C. Three. D. None. 7. The first volume was published . A. ten years ago B. last year C. five y

16、ears ago D. twenty years ago 8. In Line 7, the word “skeptical means . A. doubtful B. worried C. sad D. angry 9. Which of the following is not mentioned in the passage? A. Gunpowder. B. Needle. C. Paddle boats. D. Bridge design. 10. The best title for this passage is . A. Chinas Inventions B. Compar

17、isons Between the East and the West C. China Is Catching Up D. Situations in China Passage 3 Within fifteen years Britain and other nations should be well on with the building of huge industrial plexes for the recycling of waste. The word rubbish could lose its meaning because everything which goes

18、into the dustbin would be _de into something useful. Even the most dangerous and unpleasant wastes would provide energy if nothing else. The new con _pt of recycling waste is taking shape at the British technological laboratory at Warren Spring, not far from the north of London. Today, the laborator

19、y spends four times as much money in studying recycling as it did five years ago. The latest project is to take a city of around half a million inhabitants and discover exactly what raw _terials go into it and what go out. The aim is to find out how much of these raw _terials could be provided if a

20、plant for recycling waste were built just outside the city. This plant would recycle not only metal such as steel, lead and copper, but also paper and rubber as well. Methods have been discovered, for example, for removing the ink from newsprint so that the paper can be used again, and for obtaining

21、 valuable oils and gases from old motor car types. All these ideas are already being _de use of, but what is new is the idea of bining them on such a large scale in a single plant designed to recycle most types of waste. Another new project is being set up to discover the best ways of sorting and se

22、parating the rubbish. When this project is plete, the rubbish will be pro _ssed like this: first, it will pass through sharp metal spikes which will tear open the plastic bags in which rubbish is usually packed; then it will pass through a powerful fan to separate the lightest elements from the heav

23、y solids; after that crushers and rollers will break up everything that can be broken finally, and the rubbish will pass under _gs, which will remove the bits of iron and steel; finely the rubber and plastic will then be sorted out in the final stage. The first full-scale giant recycling plants are,

24、 perhaps, fifteen years away. But in some big industrial areas, where rubbish has been dumped for so long that there are no holes left to fill up with rubbish, these new auto _tic recycling plants _y be built sooner. Indeed, with the growing cost of transporting rubbish to more distant dumps, some b

25、ig cities will be for _d to build their own recycling plants before long. 11. Projects for recycling waste in Britain . A. will not be started for at least fifteen years B. are being developed all over Britain C. have not yet been fully tested D. have been abandoned because they are too expensive 12

26、. The purpose of the latest recycling project is A. to prevent people from putting rubbish into holes B. to find a way of destroying all kinds of waste C. to extract useful raw _terials from the waste D. to find out how much raw _terials should be provided of people want to recycle the waste 13. The

27、 new type of recycling plant will . A. recycle only paper and rubber B. not recycle metals, paper or rubber C. recycle paper, rubber and metals D. not recycle steel, lead or copper 14. The first recycling plants . A. have already been built in large industrial areas B. will not be built for at least

28、 fifteen years C. will probably be built in the next fifteen years D. will be too expensive to build near big cities. 15. “Well on with in the first paragraph probably means . A. finished with B. nearing pletion C. getting ready to start D. _ improvements on Passage 4 People with disabilities prise

29、a large part of the population. It is esti _ted that over 35 million Americans have physical, mental, or other disabilities. About half of these disabilities are “developmental, i.e., they our prior to the individuals twenty-second birthday, often from geic conditions, and are severe enough to affec

30、t three or more areas of development, such as mobility, munication, employment, etc. Most other disabilities are considered “adventitious, i.e., aidental or caused by outside for _s. Prior to the 20th _ntury, only a s _ll per _ntage of people with disabilities survived for long. Medical treatment fo

31、r these disabilities was unavailable. Advan _ments in medicine and social servi _s have created a cli _te in which people with disabilities can expect to have such basic needs as food, shelter, and medical treatment. Unfortunately, these basics are often not available. Civil liberties such as the ri

32、ght to vote, _rry, get an education, and gain employment have historically been denied on the basis of disability. In re _nt decades, the disability rights movement has been organized to fight against these infringements of civil rights. Congress responded by passing _jor legislation recognizing peo

33、ple with disabilities as a protected class under civil rights statutes. Still today, people with disabilities must fight to live their lives independently. It is esti _ted that more than half of qualified Americans with disabilities are unemployed, and a _jority of those who do work are underemploye

34、d. About two-thirds live at or below the official poverty level. Significant barriers, especially in transportation and public awareness, prevent disabled people from taking part in society. For example, while no longer prohibited by law from _rrying, a person with no aess to transportation is effec

35、tively excluded from munity and social activities which might lead to the development of long-term relationships. It will only be when public attitudes advan _ as far as laws have that disabled people will be fully able to take their rightful pla _ in society. 16. A “developmental disability . A. de

36、velops very slowly over time B. is caused for _s C. ours in youth and affects development D. is getting more and more severe 17. Most disabled people used to _ early because . A. disabilities destroyed _jor bodily functions B. they were not very well looked after C. medical techniques were not avail

37、able D. they were too poor to get proper treatment 18. In the authors opinion, to enable the disabled people to take their rightful pla _ in society. A. more laws should be passed B. public attitudes should be changed C. gover _ent should provide more aids D. more public facilities should be set up

38、19. Which of the following cannot be inferred from the passage ? A. Many disabled people _y re _in single for their whole life. B. The public tends to look down upon the disabled people. C. The disabled people feel inferior to those surrounding them. D. Discriminatory laws prevent the disabled from

39、mixing with others. 20. The best title for this passage might be . A. Handicaps of People with Disabilities B. The difficulties of the Disabled C. The Causes for Disabilities D. Medical Treatments for Disabilities Part III Vocabulary and Structure (20 minutes) Directions: There are 30 inplete senten

40、 _s in this part. For each senten _ there are four choi _s _rked A., B., C. and D. Choose the ONE answer that best pletes the senten _. Then _rk the corresponding letter on the Answer Sheet with a single line through the _ntre. 21. The guard walked through the train everyones ticket. A. inspecting B

41、. overlooking C. reviewing D. conducting 22. It is quite natural that the customs of all national minorities . A. would be respected B. were respected C. be respected D. had been respected 23. I slipped on the stairs and fell down, breaking my leg. A. so B. thus C. hen _ D. therefore 24. He tried to

42、 read but the words on the page _de no for him. A. message B. explanation C. sense D. impression 25. They lost their way in the forest, and _de _tters worse was that night began to fall. A. it B. which C. what D. that 26. Sin _ there were five different of the aident, it was difficult to know what r

43、eally happened. A. outes B. interpretations C. quotations D. paragraphs 27. Craig assured his boss that he would all his energies in doing the new job. A. call at B. call on C. call off D. call forth 28. The worlds gover _ents have done nothing to bat the threat of nuclear aidents. A. incidentally B

44、. vitally C. virtually D. identically 29. The people who objected to the new approach were told that sin _ work had already started there was no point in . A. denying B. upsetting C. protesting D. peting 30. He just couldnt what in the world she had been talking about all the time. A. figure out B.

45、catch on C. set out D. work on 31. second thoughts Ive decided against buying a new tape recorder. A. On B. With C. At D. But 32. Scientists say it _y be five or ten years it is possible to test this medicine on hu _n patients. A. sin _ B. before C. after D. when 33. The poli _ will discover the tru

46、th sooner or later, whether you try to the fact or not. A. cut back B. set back C. keep back D. look back 34. nothing to talk about, the head said good-bye and went out of the room. A. There was B. Being C. As there being D. There being 35. Johnson offered a reward to would find the lost ring for hi

47、s wife. A. who B. whom C. whoever D. whomever 36. This is the reason I came here. A. that B. what C. for which D. of which 37. In the past men generally preferred that their wives at home. A. worked B. would work C. work D. to work 38. Mistakes carelessness _y have serious consequen _s. A. due to B. th