1、精品文档 六级选词填空练习题及答案 Questionstoare based on the following passage. Ive twice been to college admissions wars, and as I survey the battle field, something different is happening. Its one upmanship among parents. We see our kids collegeas trophies attesting to how well weve raised them. But we cant ackn
2、owledge that our obsession is more about us than them. So weve contrived variousthat turn out to be haft truths, prejudices or myths. We have a full blown prestige panic; we worry that there wont be enough trophies to go around. Fearful parents urge their children to apply to more schools than ever.
3、 Underlying the hysteria is the belief that scarcedegrees must be highly valuable. Their graduates must enjoy more success because they get a better education and develop better contacts. All thats9and mostly wrong. Selective schools dont systematically 0 better instructional approaches than less-se
4、lective schools. Some do; some dont. On two measures-professors feedback and the number of essay exams-selective schools do slightly worse. By some studies, selective schools do enhance their graduates lifetime earnings. The gain is reckoned at percent to percent for every 100 point increase in a sc
5、hools average SAT scores. But even this advantage is probably a1 fluke . A well kno,vn study by Princeton economist Alan Krueger and Stacy Berg Dale of Mathematica Policy Research examined students who got into highly selective schools and then went elsewhere. They earned just as much as graduates f
6、rom other schools. Kids count more than their colleges. Getting into Yale may4intelligence, talent and ambition.But its not the only indicator and, its significance is declining. The reason: so many similar people go elsewhere. Getting into college isnt lifes only competition. In the next competitio
7、n-the job market, graduate school-the results may change. Old boy networks are breaking down. Krueger studied admissions to one top Ph.D. program. High scores on the Graduate Record Exam helped explain who got in; Ivy League degrees didnt. So, parents, lighten up. The stakes have been vastly exagger
8、ated. Up to a point, we canour pushiness. America is a competitive society; our kids need to adjust to that. But too much pushiness can be4. The very ambition we impose on our children may get some into Harvard but may also set them up for disappointment. One study of students0 years out found that,
9、 other things being equal, graduates of highly selective-schools experienced more job dissatisfaction. They may have been so conditioned to being on top that anything less disappoints. A)advantageous B)contrarily C)destructive D)elite E)employ F)jlmction G)justifications H)literally I) manipulate J)
10、meditate K)plausible L)ranks M)rationalize N)signify O)statistical 答案： 36.L7.G8.D9.K0.E1.O2.N3.B4.M5.C 英语六级新题型选词填空练习题及答案 A novel way of making computer memories， using bacteria FOR half a century， the _of progress in the computer industry has been to do more with less.Moores law famously observes th
11、at the number of transistors which can be crammed into a given space _ every 1months. The amount of data that can be stored has grown at a similar rate. Yet as _ get smaller， making them gets harder and more expensive. On May 10th Paul Otellini， the boss of Intel， a big American chipmaker， put the p
12、rice of a new chip factory at around $10 billion. Happily for those that lack Intels resources， there may be a cheaper optionnamely to mimic Mother Nature， who has been building tiny _， in the form of living cells and their components， for billions of years， and has thus got rather good at it. A pap
13、er published in Small， a nanotechnology journal ， sets out the latest example of the _. 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 informati
14、on in disk drives.The researchers took their _ from Magnetospirillum 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 compasse
15、s. Using genetic engineering， the team managed to persuade a different bacteriumEscherichia coli， a ubiquitous critter that is a workhorse of biotechnologyto _ this protein in bulk. Next， they imprinted a block of gold with a microscopic chessboard pattern of chemicals. Half the squares contained an
16、choring points for the protein. The other half were 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 _ of iron salts. After that， they examined the results with an electron
17、 microscope. Sure enough， groups of magnetite 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
18、 a real computer memory would be a long road. 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 _. But Dr Staniland reckons that， with enough tweaking， both of these objections could be dealt with. The
19、_ of this approach is that it might 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. new meaning. A) components B) advantage C) standards
20、D) compliments E) essence F) inspiration G) disadvantage H) doubles I) solution J) resolution K) devices L) manufacture M) spirit N) product O) technique Nice juicy Apple ALTHOUGH he is still _ things up at Dell， an ailing computer-maker， Carl Icahn has found time to tilt at another tech titan. On A
21、ugust 13th the veteran shareholder activist _that he had built up a stake in Apple， though he stayed mum about exactly how many shares he had bought. Mr Icahns intentions， however， are crystal clear： he wants the consumer-electronics behemoth to expand plans to return some of its whopping $14billion
22、 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 _ buy-out plan 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
23、raise its initial offer by over $350m， to $24.billion and he has taken his _ to the courts in a bid to extract an even higher price. Other tech firms have been attracting the attention of activist investors too. Earlier this year ValueAct Capital， an investment fund， said it had built up a $2 billio
24、n stake in Microsoft. Jaguar Financial， a Canadian bank， has been _ fresh thinking at troubled BlackBerry， which announced on August 12th that it is exploring various _options， including alliances and a possible sale. And Elliott Management， a hedge fund， has been lobbying for change at NetApp， a da
25、ta-storage firm that it thinks could do more to improve returns to _. One reason tech firms have found themselves in activists crosshairs 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 pu
26、rse-strings faster and to pocket some of the cash. Mr Icahn wants Apple to increase and _ a share buy-back programme that is currently set to return $60 billion to shareholders by the end of015. Another reason that tech firms make tempting targets for shareholder activists is that swift changes in t
27、echnologies can trip up even the mightiest. Witness the case of Microsoft， which ruled the roost during the personal-computer era 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 respo
28、nse to such upheavals in their markets. The rewards can be substantial. Egged on by Third Point， an activist hedge fund， Yahoo _Marissa Mayer as its new chief executive in July012. By the time she celebrated a year in the job last month， the troubled web giants share price had risen by over0%. In Ju
29、ly the hedge fund sold a big chunk of shares back to Yahoo. Mr Icahn thinks Apples share price， which closed at $49on August 14th， could soar too if the firm follows his advice on buy-backs. He tweeted this week that he had had a “nice _” with Tim Cook， Apples boss， about his idea， though he did not
30、 say what Mr Cook thought of it. If Apple drags its feet， expect things to turn nasty. A） shareholders B） strategic C） communication D） battle E） conversation F） encouraging G） exciting H） stirring I） appointedJ） race K） revealed L） method M） accelerate N） proposed O） It isnt just the beer that _ to
31、 beer bellies. It could also be the extra calories， fat and unhealthy eating choices that may come with _drinking. A recent study found that men consume an _33 calories on days they drink a moderate amount of alcohol. About1% of the caloric increase comes from the alcohol itself. Men also report eat
32、ing 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. Women fared a bit better， taking in an extra00 calories on moderate-drinking days， from the alcohol and eating fattier foods. But womens increase in calories
33、 from additional eating wasnt statistically significant， the study said. Men and women ate less healthily on days they drank alcohol， said Rosalind Breslow， an epidemiologist with the federal National Institute on Alcohol Abuse and Alcoholism and lead author of the study. Poorer food choices on drin
34、king days have public-health _， she said. The findings dovetail with controlled lab studies in which _ generally eat more food after consuming alcohol. Researchers suggest that alcohol may enhance the short-term rewarding effects of consuming food， according to a010 report in the journal Physiology
35、& Behavior that reviewed previous studies on alcohol， appetite and obesity. But other studies have pointed to a different trend. Moderate drinkers gain less weight over time than either heavy drinkers or people who abstain from alcohol， particularly women， this research has shown. Moderate drinking
36、is _having about two drinks a day for men and one for women. People who gain the least weight are moderate drinkers， regardless of alcoholic beverage choice， said Eric Rimm， an associate professor of epidemiology and nutrition at Harvard Medical School and chairman of the010 review of alcohol in the
37、 federal dietary _. The weight-gain difference is modest， and starting to drink is not a weight-loss diet， he said. The various research efforts form part of a long-standing _ about how alcohol affects peoples appetites， weight and overall health. Researchers say there arent simple answers， and sugg
38、est that individuals metabolism， drinking patterns and gender may play a role. Alcohol is a real wild card when it comes to weight management， said Karen Miller-Kovach， chief scientific officer of Weight Watchers International. At seven calories per gram， alcohol is closer to fat than to carbohydrat
39、e or protein in caloric content， she said. Alcohol tends to lower restraint， she notes， causing a person to become more _ with what theyre eating. Research bolstering the role of moderate drinking in helping to control weight gain was published in00in the journal Obesity Research. That study followe
40、d nearly0，000 women over eight years. An earlier study， published in the American Journal of Epidemiology in 1994， followed more than，000 people for 10 years and found that moderate drinkers gained less weight than nondrinkers. Studies comparing changes in waist circumference among different groups
41、have yielded similar results. Dr. Rimm said it isnt clear why moderate drinking may be _ against typical weight gain， but it could have to do with metabolic adjustments. After people drink alcohol， their heart rate increases so they burn more calories in the following hour. Its a modest amount， he s
42、aid. But if you take an individual that eats 100 calories instead of a glass of wine， the person drinking the glass of wine will have a slight increase in the amount of calories burned. A：indulgent B：participants C：debate D：considered E：contributesF：contest G：guidelines H：protective I：moderate J：ind
43、ex K：implications L：considerate M：additional N：experienced O：owes Nearly half the _ believes UFOs could be a _of extraterrestrial visitation. A HuffPost/YouGov poll reveals thatpercent of adults in the United States are open to the idea that alien spacecraft are observing our planet - and justpercen
44、t outright _ the idea. The poll was seen as vindication from the community of UFO researchers who often feel they are laughed off by government officials. “Its always been intriguing to me how we act as though only kooks and quacks and little old ladies in tennis shoes believe in flying saucers. And
45、 its never been true， at least for0 or0 years，” said former nuclear physicist Stanton Friedman， who was the original civilian investigator of the events surrounding the _Roswell， NM， UFO crash of 1947. Friedman is very outspoken on the idea that some UFOs are _ controlled extraterrestrial vehicles.
46、“The believers are far more quiet， but far more on the side of reality，” Friedman told The Huffington Post. “When you look at the polls， its clear. And I see the benefit of that，_， because Ive only had 11 hecklers A novel way of making computer memories， using bacteria FOR half a century， the _of progress in the computer industry has been to do more with less.Moores law famously observes that the numbe
