大学英语英语四级练习卷（答案） (3).docx

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1、大学英语四级试练习卷一、阅读理解 阅读理解（一） Newdays, a standard for measuring power has changeD. These changes foretell a new standard for measuring power. No longer will a nations political influence be based solely on the strength of its military forces. Of course, military effectiveness will remain a primary primar

2、y measure of power. But political influence is also closely tied to industrial competitiveness. Its often said that without its military the Soviet Union would really be a third-world nation. The new standard of opwer and influence that is evolving now places more emphasis on the ability of a countr

3、y to compete effectively in the economic markets of the worlD. America must recognize this new course of events. Our success in shaping world events over the past 40 years has been the direct result of our ability to adapt technology and to take advantage of the capabilities of our people for the pu

4、rpose of maintaining peace. Our industrial prowess over most of this period was unchallengeD. It is ironic that it is just this prowess that has enabled other countries to prosper and in turn to threaten our industrial leadership.The competitiveness of Americas industrial base is an issue bigger tha

5、n the Department of Defense and is going to require the efforts of the majorinstitutional forces in our society-government, industry, and education.That is not to say that the Defense Department will not be a strong force in the process because we will. But we simply cannot be, nor should we be, loo

6、ked upon by others as the savior of American industry.1. Now a nation5 s political influence depends on .A. the strength of its military forces B. its ability to compete in industry C. economic markets D. both a and b2. The Soviet Union was not listed as a third-world nation just because of .A. its

7、powerful military forces B. its vast land C. its industrial competitiveness D. its contributions to world peace3. The author indicates that is threatening American political power.A. other countries B. the declining U. S. industrial base C. a new standard for measuring power D. less advanced technol

8、ogy4. America succeeded in shaping world events over past 40 years probably because of .A. its ability to adapt technology B. its ability to take advantage of the capabilities of its people C. its ability to compete in the world markets D. both a and b5. The purpose of writing this article is.A. to

9、draw the readers attention to a new standard for measuring powerB. to demonstrate American political influence in the world C. to emphasize that efforts must be made to strengthen the declining U.S. industrial base D. to show American industrial prowess 阅读理解（二）The accuracy of cientific observations

10、and calculations is always at the mercy of the scientists timekeeping methods. For this reason, scientists are interested in devices that give promise of more precise timekeeping. In their search for precision, scientists have turned to atomic clocks that depend on various vibrating atoms or molecul

11、es to supply their “ticking” . This is possible because each kind of atom or molecule has its own characteristic rate of vibration. The nitrogen atom in ammonia , for example, vibrates or ticks 24 billion times a seconD. One such atomic clock is so accurate that it will probaly lose no more than a s

12、econd in 3000 years. It will be of great improtance in fields such as astronomical is a sesium atom that vibrates 9. 2 billion times a second when heated to the temperature of boiling water. An atomic clock that operates with an ammonia molecue may be used to check the accuracy of predictions based

13、on Einsteins relativity theories, according to which a clock in motion and a clock at rest should keep time differently. Placed in an orbiting satellite moving at a speed of 18000 miles an hour, the clock could broadcast its time readings to a ground station, where they would be compared with the re

14、adings on a similar model. Whateverdifferences develop would be checked against the differences predicteD.1.Scientists expect that the atomic clocks will be .A. more precise B. absolutely accurate C. more durable D. indestructible2. The heart of the atomichron is .A. acesium atom B. an ammonia molec

15、ule C. a nitrogen atom D.a hydrogen3. From theselection, we may assume that temperature changes.A. affect only ammonia molecules B. may affect the vibration rate of atomsC. affect the speed at which atoms travel D. do not affect atoms in any way4. Identical atomic clocks may be used to check.A. the

16、effect of outer space on an atomic clock B. the actual speed of an orbiting satelite C.the accuacy of predictions based on theories of relativity D. all of Einsteins theories5. Implied but not stated:.A.Precise timekeeping is essential in scienceB.Scientists expect to disprove Einsteins relativity t

17、heoriesC. Atomic clocks will be important in space flightD. The rate of vibration of an atom never varies二、完型填空Exercise is good for you, but most people really know very little about how to exercise properly. 1 when you try, you can runsintostrouble. Many people 2 that when specific muscles are exer

18、cised, the fat in theneighbouring area is “ 3 up” . Yet the 4 is that exercise burns fat from all over 5 . Studies show muscles which are not 6 lose their strength very quickly. To regain it needs 48 to 72 hours and exercise every other day will 7 a normal level of physical strength. To 8 weight you

19、 should always “work up a good sweat” when exercising. 9 sweating only 10 bodytemperature to prevent over heating. This is 11 water loss. 12 You replace the liquid, you replace the 13 . Walking is the best and easy-todo exercise. It helps the circulation of blood 14 the body, and has a direct 15 on

20、your overall feeling of health. Experience says that 20 minutes 16 17 is minimun amount. 18 your breathing doesn t return to normal state within minutes after you finish 19 , you ve done 20 .LA. While B. When C. As D. So2. A. understand B.believe C.hope D.know3. A. built B. burned C. piled D. grownC

21、.truth D.reason4. A. reply B. possibility5. A. arm B. leg C. stomach D. bodyC.protected D.cured6. A. exercised B. examined7. A. lose B. raise C. burn D. keep8. A. lose B. gain C. keep D. burn9. A. Certainly B. No C. Fortunately D. Probably10. A. raises B. reduces C. destroys D.keeps up11. A. how B.

22、why C. nothing but D. more than12. A. While B. Once C. As D. Whenever13. A. weight B. muscle C. sweat D.strength14. A. over B. around C. throughout D. with15. A. effect B. use C. usage D. affect16. A. education B.sleep C.exercise D.rest17. A. one day B. a day C. everyday D. someday18. A. But if B. B

23、ut C. If D. And if19. A.working B.walking C.exercising D.breathing20. A. enough B.much C.too much D. much too三、翻译1、他用所有的积蓄为儿子买了一辆自行车。(savings)2、中央电视台新闻节目为我们学习英语提供了实践机会。(give practice)3、农民们如果要摆脱贫困还有许多事情要做。(get rid of)4、老师已经找到打破怀特太太家玻璃窗的那个学生。(find out)5、报纸的新闻板块是我们获知每日重要新闻的地方。(learn from)参考答案：一、阅读理解:阅读

24、理解（一）答案：DABDC阅读理解（二）答案:AABCC二、完型填空1 .【答案】D因为大部分人不知道如何正确锻炼，所以，人们在训炼时常会遇 到麻烦。句中you表示泛指。2 .【答案】C 希望“邻近的脂肪消耗掉，在此符合语境；understand, know不 合逻辑，因为，即已”明白“，就不会不符合事实真相；believe表示的是人 的得一种看法，而看法有对有错。3 .【答案】B下一句中再现了 burn这一词。4 .【答案】C truth本意为“真理”，此处引申为“事实”一一指实际锻炼时 脂肪消耗的情形。余 者不合文意。5 .【答案】D余者不能概全6 .【答案】A根据常识可知，“不锻炼的肌肉

25、会很快丧失力量。7 .【答案】D根据前一句“要重新获得力量需要48到72个小时可知，每隔 一天锻炼一次可保持正常水平的体力。”8 .【答案】A本句意思是“为了一一体重，人们应该通过锻炼来出汗”。空格 处显然应该是“减少”。而不是“增加”或”“保持”，更不可能是“燃烧”。9 .【答案】B表示对该节首句看法的否定。首句看法的错误性可从下文推知。10 .【答案】B根据to prevent over heating可知，sweating的作用是降低 体温。11 .【答案】C loss是名词，故前面不能填连接副词how和why； more than “不只是，不合文意。本题应选nothing but,全

26、句的意思为“这（即sweating）只是人体内水分的消耗”。12 .【答案】B意思是“一旦”，引起时间状语从句，余者不合文意。13 .【答案】A由To lose weight you should可推知，余者不在本节论及范 围之内。14 .【答案】C throughout the body遍及全身。余者不合文意。15 .【答案】A have effect on 对产生影响”，合乎文意，合乎搭配。16 .【答案】C本节主要讲的是锻炼形式之散步。另从最后一节中也能得到暗示。17 .【答案】B根据常识和语境可知，“每天”（而不是某一天）至少得散步20分 钟。另everyday是形容词，不能作状语。1

27、8 .【答案】A与上一句中minimum amount形成对比，if引导条件句。19 .【答案】C本节是上一节内容的继续，论述的仍是“锻炼。walking不能 概括全面，应舍去。20 .【答案】C指出原因（运动）过量。enough, much表意不清，much too后应接其它词。三、翻译1、 He used all his savings to buy his son a bike.2、 CCTV News gives us practice in learning English.3、 There is still much to be done before the peasants can get rid of poverty.4、 The teacher has found out the student who broke the window of Mrs.White s house.5、The section on news of the newspaper is where we learn important news of the day from.