大学英语专四考试完形填空专项训练

 　　Other people’s interruptions of your work are relatively insignificant compared with the countless times you interrupt yourself. 以下是小编为大家搜索整理的大学英语专四考试完形填空专项训练，希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业考试网!

　　part 1

 　　The birth of computers has brought with it a new set of opportunities for mischief and crime. Today, computers are easy to come by and many people know how computer technology 11 . More importantly, the growing use of computer networks can multiply the violation of security, making large numbers of people more vulnerable than would be the case if they were using 12 , stand-alone computers.

　　What's more, computer experts agree that—despite recent widespread publicity-computer viruses are 13 one of the many computer security problems facing the nation.

　　The U. S. Defense Advanced Research Project Agency has requested that the Research Council's Science and Technology Board 14 the security problems posed by computer technology, see what 15 may already exist, review research efforts 16 at avoiding security problems in the future, and evaluate existing policies 17 to computer security. The study committee will examine the 18 of security for a broad spectrum of users, including the business, national security, and academic communities, as well as the 19 public.

 　　David. Clark, senior research scientist, Laboratory for Computer Science, Massachusetts Institute of Technology, will chair the 20 of experts in electronic security, net-work security, computer law, software engineering ? and operating systems. The committee will also include computer users from the defense and banking industries.

　　A. only B.works C.solutions D.general

　　E. issue F.fundamentally G.universal H.assess

　　I. aimed J.single K.committee L.generates

　　M. relevant N.question O.community

　　参考答案

 　　II. B 12. J 13. A 14. H 15. C 16. I 17. M 18. E 19. D 20. K

　　part 2

　　I have never attended a large company's board meeting in my life, but I feel certain that the discussion often takes the following lines. The __11__ of producing a new—for example—toothpaste would make 8 Op the decent price for it, so we will market it at £l. 20. It is not a bad toothpaste (not specially good either, but not bad) , and as people like to try new things it will sell well to start with; but the __12__ of novelty soon fades, so sales will __13__ . When that starts to happen we will reduce the price to £l. 15. And we will turn it into a bargain by printing 5p OFF all over it, whereupon people will rush to buy it even though it still costs about forty-three percent more than its __14__ price.

　　Sometimes it is not 5p OFF but lp OFF. What a shame to advertise lp OFF your soap or washing powder or dog food or whatever. Even the poorest old-age pensioner ought to regard this as an insult, but he doesn't. A bargain must not be__15__ To be offered a "gift" of one penny is like being invited to dinner and offered one single pea (tastily cooked), and nothing else. Even if it represented a__16__ reduction it would be an insult. Still, people say, one has to have washing powder (or whatever) and one might as well buy it a penny cheaper. When I was a boy in Hungary a man was __17__ of murdering some­one for the sake of one pengo, the equivalent of a shilling, and pleaded __18__ The judge shouted __19__ : "To kill a man for a shilling! What can you say in your __20__ ?" The murderer replied: "A shilling here. . . a shilling there. . . " And that's what today's shopper says, too: "A penny here... a penny there. . . "

　　A. missed B.defense C.real D.cost

　　E. anxiously F.attraction G.fairH.expense

　　I. fall J.angrily K.dismissed L.accused

　　M. guilty N.faulty O.security

　　参考答案

 　　II. D 12. F 13. I 14. G 15. A 16. C 17. L 18. M 19. J 20. A

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