英语六级选词填空习题及答案.doc

1、2014 年 6 月英语六级选词填空习题及答案 （ 1） A novel way of making computer memories, using bacteria FOR half a century, the （ 1） _of progress in the computer industry has been to do more with less. Moores law famously observes that the number of transistors which can be crammed into a given space （ 2） _ every 18 m

2、onths. The amount of data that can be stored has grown at a similar rate. Yet as （ 3） _ get smaller, making them gets harder and more expensive. On May 10th Paul Otellini, the boss of Intel, a big American chipmaker, put the price of a new chip factory at around $10 billion. Happily for those that l

3、ack Intels resources, there may be a cheaper option-namely to mimic Mother Nature, who has been building tiny （ 4） _, in the form of living cells and their components, for billions of years, and has thus got rather good at it. A paper published in Small, a nanotechnology journal , sets out the lates

4、t example of the （ 5） _. In it, a group of researchers led by Sarah Staniland at the University of Leeds, in Britain, describe using naturally occurring proteins to make arrays of tiny magnets, similar to those employed to store information in disk drives. The researchers took their （ 6 ） _ from Mag

5、netospirillum magneticum, a bacterium that is sensitive to the Earths magnetic field thanks to the presence within its cells of flecks of magnetite, a form of iron oxide. Previous work has isolated the protein that makes these miniature compasses. Using genetic engineering, the team managed to persu

6、ade a different bacterium-Escherichia coli, a ubiquitous critter that is a workhorse of biotechnology-to （ 7） _ this protein in bulk. Next, they imprinted a block of gold with a microscopic chessboard pattern of chemicals. Half the squares contained anchoring points for the protein. The other half w

7、ere left untreated as controls. They then dipped the gold into a solution containing the protein, allowing it to bind to the treated squares, and dunked the whole lot into a heated （ 8） _ of iron salts. After that, they examined the results with an electron microscope. Sure enough, groups of magneti

8、te grains had materialised on the treated squares, shepherded into place by the bacterial protein. In principle, each of these magnetic domains could store the one or the zero of a bit of information, according to how it was polarised. Getting from there to a real computer memory would be a long roa

9、d. For a start, the grains of magnetite are not strong enough magnets to make a useful memory, and the size of each domain is huge by modern computing （ 9） _. But Dr Staniland reckons that, with enough tweaking, both of these objections could be dealt with. The （ 10） _ of this approach is that it mi

10、ght not be so capital-intensive as building a fab. Growing things does not need as much kit as making them. If the tweaking could be done, therefore, the result might give the word biotechnology a whole new meaning. A） components B） advantage C） standards D） compliments E） essence F） inspiration G）

11、disadvantage H） doubles I） solution J） resolution K） devices L） manufacture M） spirit N） product O） technique 答案： 1.E)essence 2.H)doubles 3.A)components 4.K)devices 5.O)technique 6.F)inspiration 7.L)manufacture 8.I)solution 9.C)standards 10.B)advantage 2014 年 6 月英语六级选词填空习题及答案 （ 2） Nice juicy Apple A

12、LTHOUGH he is still （ 1） _ things up at Dell, an ailing computer-maker, Carl Icahn has found time to tilt at another tech titan. On August 13th the veteran shareholder activist （ 2） _that he had built up a stake in Apple, though he stayed mum about exactly how many shares he had bought. Mr Icahns in

13、tentions, however, are crystal clear: he wants the consumer-electronics behemoth to expand plans to return some of its whopping $147 billion of cash and marketable securities to shareholders. Mr Icahn is also after more money at Dell, where he has been lobbying with allies against a （ 3） _ buy-out p

14、lan put forward by Michael Dell, the firms founder, and Silver Lake, a private-equity firm. His pressing has already forced the buy-out group to raise its initial offer by over $350m, to $24.8 billion and he has taken his （ 4） _ to the courts in a bid to extract an even higher price. Other tech firm

15、s have been attracting the attention of activist investors too. Earlier this year ValueAct Capital, an investment fund, said it had built up a $2 billion stake in Microsoft. Jaguar Financial, a Canadian bank, has been （ 5）_ fresh thinking at troubled BlackBerry, which announced on August 12th that i

16、t is exploring various （ 6） _options, including alliances and a possible sale. And Elliott Management, a hedge fund, has been lobbying for change at NetApp, a data-storage firm that it thinks could do more to improve returns to （ 7） _. One reason tech firms have found themselves in activists crossha

17、irs is that, like Apple, some built up big cash piles during the economic downturn and have been slow to use the money. Financiers hope to get them to loosen their purse-strings faster and to pocket some of the cash. Mr Icahn wants Apple to increase and （ 8） _ a share buy-back programme that is curr

18、ently set to return $60 billion to shareholders by the end of 2015. Another reason that tech firms make tempting targets for shareholder activists is that swift changes in technologies can trip up even the mightiest. Witness the case of Microsoft, which ruled the roost during the personal-computer e

19、ra but has struggled to adapt to a world in which tablets and smartphones are all the rage. Investors hope to mint money by pushing companies to change more rapidly in response to such upheavals in their markets. The rewards can be substantial. Egged on by Third Point, an activist hedge fund, Yahoo

20、（ 9） _Marissa Mayer as its new chief executive in July 2012. By the time she celebrated a year in the job last month, the troubled web giants share price had risen by over 70%. In July the hedge fund sold a big chunk of shares back to Yahoo. Mr Icahn thinks Apples share price, which closed at $499 o

21、n August 14th, could soar too if the firm follows his advice on buy-backs. He tweeted this week that he had had a “nice （ 10） _” with Tim Cook, Apples boss, about his idea, though he did not say what Mr Cook thought of it. If Apple drags its feet, expect things to turn nasty. A） shareholders B） stra

22、tegic C） communication D） battle E） conversation F） encouraging G） exciting H） stirring I） appointed J） race K） revealed L） method M） accelerate N） proposed O） currently 答案 1.H) stirring 2.K) revealed 3.N) proposed 4.D) battle 5.F) encouraging 6.B) strategic 7.A) shareholders 8.M) accelerate 9.I) ap

23、pointed 10.E) conversation 2014 年 6 月英语 六级选词填空习题及答案 （ 3） It isnt just the beer that （ 1） _ to beer bellies. It could also be the extra calories, fat and unhealthy eating choices that may come with （ 2） _drinking. A recent study found that men consume an （ 3）_ 433 calories （ equivalent to a McDonalds

24、 double cheeseburger） on days they drink a moderate amount of alcohol. About 61% of the caloric increase comes from the alcohol itself. Men also report eating higher amounts of saturated fats and meat, and less fruit and milk, on those days than on days when they arent drinking, the study showed. Wo

25、men fared a bit better, taking in an extra 300 calories on moderate-drinking days, from the alcohol and eating fattier foods. But womens increase in calories from additional eating wasnt statistically significant, the study said. Men and women ate less healthily on days they drank alcohol, said Rosa

26、lind Breslow, an epidemiologist with the federal National Institute on Alcohol Abuse and Alcoholism and lead author of the study. Poorer food choices on drinking days have public-health （ 4） _, she said. The findings dovetail with controlled lab studies in which （ 5） _ generally eat more food after

27、consuming alcohol. Researchers suggest that alcohol may enhance the short-term rewarding effects of consuming food, according to a 2010 report in the journal Physiology it must therefore be kept in a closed container or held by a gravitational field， as in the_2_of a planets atmosphere. The distinct

28、ion was a _3_feature of early theories describing the phases of matter. In the nineteenth century， for example， one theory maintained that a liquid could be “dissolved” in a vapor without losing its identity， and another theory_4 _that the two phases are made up of different kinds of molecules. The

29、theories now prevailing take a quite different approach by emphasizing what liquids and gases have in _5 _They are both forms of matter that have no _6 _structure， and they both flow readily. The fundamental similarity of liquids and gases becomes clearly apparent when the temperature and pressure a

30、re _7_somewhat. Suppose a closed container _8_filled with a liquid is heated. The liquid expands， or in other words becomes less dense; some of it evaporates. In contrast， the vapor above the liquid surface becomes denser as the evaporated molecules are _9_to it. The combination of temperature and p

31、ressure at which the densities become _10_is called the critical point. A. added B. case C. prominent D. held E. equal F. partially G. example H. previous I. space J， lifted K. permanent L. particularly M. extended N. raised 0. common 答案： I. I 2. B 3. C 4. D 5. O 6. K 7. N 8. F 9. A 10. E Climate， m

32、ore than any other single factor， _1_the distribution of life on Earth. Climatic boundaries establish the limits within which organisms can survive. Plants， even more than animals， must be_2_ adapted to climate in order to survive. They cannot move about or take shelter but must be equipped to _3_ w

33、hatever weather conditions are likely to occur. In the harsh conditions of the far north of the earth， for example， low growing mosses， lichens， and a few flowering plants all hold to the ground for shelter from icy winds. Animals， despite their _4_to move about and find shelter， are just as much in

34、fluenced by climate as plants are. Creatures such as the camel and the penguin are so highly specialized that they have an _5_ limited distribution. Others， such as bears， are flexible enough to adapt to a _6_range of climates. 。 Ocean-dwelling organisms are just as sensitive to climatic changesin t

35、his case temperature and salinityas land animals. Reef corals can survive only in clear warm seawater. Certain foraminaters are so sensitive to changes in their_7 _that their presence can be taken as an _8_ of sea temperature. Human beings are among the _9 _ specialized of all animals and can live a

36、lmost anywhere. Their clothes and their homes _10_as a sort of “miniature climate” that can be taken with them everywhere. A. least B. determines c. ability D. urgently E. broad F. behave G. worst H. index I. endure J. extremely K. entertain L. well M. neighborhood N. act O. environment 答案： I. B 2.

37、L 3. I 4. C 5. J 6. E 7. O 8. H Scientists at Sussex University appear to be on the way to _1_ how the mosquito， carrier of diseases such as malaria and yellow fever， homes in on its target. The problem is that they have found that the best way to avoid being bitten is： stop breathing， stop sweating

38、， and keep down the temperature of your immediate surroundings. _2_ the first suggestion is impossible and the others very difficult. Scientists have found that there are three _3_ stages in a mosquitos assault. Stage one is at fifty feet away， when the insect first smells a man or a animal to _4_ 。

39、 Stage two is thought to come into operation about twenty-five feet from the target， when the insect becomes guided by the carbon dioxide breathed out by the intended victim. Stage three is when the mosquito is only a matter of inches from its _5_ the warmth and moisture given off by the victim is t

40、he final clue. The researchers then * _6_ how repellents interfere with its three-stage attack. They found repellents act more subtly than by just giving off a nasty smell. A Canadian researcher says that repellents appear to _7_ mosquitoes first when it is following the carbon dioxide and second du

41、ring the final approach， where the warmth and moisture are the insects _8_. Air pervaded by one of the many chemical repellents stops the mosquito reacting to the victims carbon dioxide， and the repellent seems to affect the tiny hairs with which the insect senses moisture in the air. The sensors ar

42、e blocked so that the _9_ does not know whether it is flying through a moist current， or the sensors are made to send the _10 _ signals. A. examined B. animal C. wrong D. insect E. bite F. Unfortunately G. inventing H. distinct I. prey J. guide K. checked L. definite M. Unnecessarily N. confuse O. d

43、iscovering 答案： 1. O 2. F 3. H 4. E 5. I 6. A 7. N 8. J 9. D 10. C I have never attended a large companys board meeting in my life， but I feel certain that the discussion often takes the following lines. The _1_ of producing a newfor exampletoothpaste would make 8 Op the decent price for it， so we wi

44、ll 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 _2_ of novelty soon fades， so sales will _3_ 。 When that starts to happen we will reduce the price to l. 15. And we will turn it

45、 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 _4 _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 poo

46、rest old-age pensioner ought to regard this as an insult， but he doesnt. A bargain must not be _5_ 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 _6_ reduction it would be an insult. Still，

47、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 _7_ of murdering someone for the sake of one pengo， the equivalent of a shilling， and pleaded_8_ The judge shouted _9_ ： “To kill a man for a shilling！ What can you say in your _10_ ？ ” The murderer replied： “A shilling here. 。 . a shilling there. 。 . ”