四六级

　　Part I Writing

　　Direction: For this part, you are allowed 30 minutes to write a short eaasy based on the picture below. You should focus on the difficulty in acquiring useful information in spite of advanced information technology. You are required to write at least 150 words but no more than 200 words.

　　"We have lots of information technology. We just don't have much useful information."

　　PartⅢ Reading Comprehension

　　Section A

　　As it is, sleep is so undervalued that getting by on fewer hours has become a badge of honor. Plus, we live in a culture that_____(37)to the late-nighter, from 24-hour grocery stores to online shopping sites that never close. It's no surprise, then, that more than half of American adults don't get the 7 to 9 hours of shut-eye every night as_____(38)by sleep experts.

　　Whether or not we can catch up on sleep-on the weekend, say-is a hotly_____(39)topic among sleep researches. The latest evidence suggests that while it isn't_____(40), it might help. When Liu, the UCLA sleep researcher and professor of medicine, brought_____(41)sleep-restricted people into the lab for a weekend of sleep during which they logged about 10 hours per night, they showed_____(42)in the ability of insulin(胰岛素)to process blood sugar. That suggests that catchup sleep may undo some but not all of the damage that sleep_____(43)causes, which is encouraging given how many adults don't get the hours they need each night. Still, Liu isn't_____(44)to endorse the habit of sleeping less and making up for it later.

　　Sleeping pills, while helpful for some, are not_____(45)an effective remedy either. “A sleeping pill will_____(46)one area of the brain, but there's never going to be a perfect sleeping pill, because you couldn't really replicates(复制)the different chemicals moving in and out of different parts of the brain to go through the different stages of sleep," says Dr.Nancy Collop, director of the Emory University Sleep Center.

　　37.【题干】_____

　　【选项】

　　A.alternatively

　　B.caters

　　C.chronically

　　D.debated

　　E.deprivation

　　F.ideal

　　G.improvements

　　H.necessarily

　　I.negotiated

　　J.pierce

　　K.presumption

　　L.ready

　　M.recommended

　　N.surpasses

　　O.target

　　【答案】B

　　【解析】cater to表示“迎合”的意思，空白处前提到a culture，所以用第三人称单数caters。

　　38.【题干】_____

　　【选项】

　　A.alternatively

　　B.caters

　　C.chronically

　　D.debated

　　E.deprivation

　　F.ideal

　　G.improvements

　　H.necessarily

　　I.negotiated

　　J.pierce

　　K.presumption

　　L.ready

　　M.recommended

　　N.surpasses

　　O.target

　　【答案】M

　　【解析】空白处后有介词by，因此空白处前要填一个动词，与后文匹配，recommended by符合题意，大多数美国人都达不到由睡眠专家建议的7——9小时睡眠时间。

　　39.【题干】_____

　　【选项】

　　A.alternatively

　　B.caters

　　C.chronically

　　D.debated

　　E.deprivation

　　F.ideal

　　G.improvements

　　H.necessarily

　　I.negotiated

　　J.pierce

　　K.presumption

　　L.ready

　　M.recommended

　　N.surpasses

　　O.target

　　【答案】D

　　【解析】空白处前有hotly这个词，后有topic，说明这是个热门的话题，要填一个形容词，debated讨论的，符合题意。

　　40.【题干】_____

　　【选项】

　　A.alternatively

　　B.caters

　　C.chronically

　　D.debated

　　E.deprivation

　　F.ideal

　　G.improvements

　　H.necessarily

　　I.negotiated

　　J.pierce

　　K.presumption

　　L.ready

　　M.recommended

　　N.surpasses

　　O.target

　　【答案】F

　　【解析】通过while...might help. 可以看出，文章中提到尽管在假日补充睡眠并不是理想的，ideal符合语境。

　　41.【题干】_____

　　【选项】

　　A.alternatively

　　B.caters

　　C.chronically

　　D.debated

　　E.deprivation

　　F.ideal

　　G.improvements

　　H.necessarily

　　I.negotiated

　　J.pierce

　　K.presumption

　　L.ready

　　M.recommended

　　N.surpasses

　　O.target

　　【答案】C

　　【解析】 空白处后为形容词，空白处需要填副词做修饰，chronically意思为“长期地”修饰“有睡眠困扰的人”符合题意。

　　42.【题干】_____

　　【选项】

　　A.alternatively

　　B.caters

　　C.chronically

　　D.debated

　　E.deprivation

　　F.ideal

　　G.improvements

　　H.necessarily

　　I.negotiated

　　J.pierce

　　K.presumption

　　L.ready

　　M.recommended

　　N.surpasses

　　O.target

　　【答案】G

　　【解析】空白处前有showed，因此空白处填一个名词更贴切，G选项improvements符合语境。

　　43.【题干】_____

　　【选项】

　　A.alternatively

　　B.caters

　　C.chronically

　　D.debated

　　E.deprivation

　　F.ideal

　　G.improvements

　　H.necessarily

　　I.negotiated

　　J.pierce

　　K.presumption

　　L.ready

　　M.recommended

　　N.surpasses

　　O.target

　　【答案】E

　　【解析】题意为：补眠可以修复一部分并不是全部的由睡眠( )造成的损害。所以sleep后面应该接一个名词，组成“睡眠匮乏”符合语境。

　　44.【题干】_____

　　【选项】

　　A.alternatively

　　B.caters

　　C.chronically

　　D.debated

　　E.deprivation

　　F.ideal

　　G.improvements

　　H.necessarily

　　I.negotiated

　　J.pierce

　　K.presumption

　　L.ready

　　M.recommended

　　N.surpasses

　　O.target

　　【答案】L

　　【解析】根据文中 “没有…去做某事”，推测出空格内填一个形容词，选ready表示“Liu尚未准备好去接受这个习惯”。

　　45.【题干】_____

　　【选项】

　　A.alternatively

　　B.caters

　　C.chronically

　　D.debated

　　E.deprivation

　　F.ideal

　　G.improvements

　　H.necessarily

　　I.negotiated

　　J.pierce

　　K.presumption

　　L.ready

　　M.recommended

　　N.surpasses

　　O.target

　　【答案】H

　　【解析】空格内应该填一个副词修饰be动词。“必须地”符合语境，“尽管安眠药对于一些人是有效的，但并不一定是一个有效的解决良方”。

　　46.【题干】_____

　　【选项】

　　A.alternatively

　　B.caters

　　C.chronically

　　D.debated

　　E.deprivation

　　F.ideal

　　G.improvements

　　H.necessarily

　　I.negotiated

　　J.pierce

　　K.presumption

　　L.ready

　　M.recommended

　　N.surpasses

　　O.target

　　【答案】O

　　【解析】情态动词will后要跟一个动词原形，target符合，表示“一片安眠药会瞄准大脑的一个区域。

　　Section B

　　Climate change may be real, but it's still not easy being green.

　　[A]The road to climate hell is paved with our good intentions. Politicians may tackle polluters while scientists do battle with carbon emissions. But the most pervasive problem is less obvious: our own behavior. We get distracted before we can turn down the heating. We break our promise not to fly after hearing about a neighbour's trip to India. Ultimately, we can't be bothered to change our attitude. Fortunately for the planet, social science and behavioural economics may be able to do that for us.

　　[B]Despite mournful polar bears and charts showing carbon emissions soaring, most people find it hard to believe that global warming will affect them personally. Recent polls by the Pew Research Centre in Washington, DC, found that 75-80 per cent of participants regarded climate change as an important issue. But respondents ranked it last on a list of priorities.

　　[C]This inconsistency largely stems from a feeling of powerlessness. "When we can't actually remove the source of our fear, we tend to adapt psychologically by adopting a range of defence mechanisms," says Tom Crompton, change strategist for the environmental organization Word Wide Fund for Nature.

　　[D]Part of the fault lies with our inner caveman. Evolution has programmed humans to pay most attention to issues that will have an immediate impact. "We worry most about now because if we don't survive for the next minute, we're not going to be around in ten years' time," says Professor Elke Weber of the Centre for Research on Environmental Decision at Columbia University in New York. If the Thames for Research on Environmental Decision at Columbia University in New York. If the Thams were lapping around Big Ben, Londoners wound face up to the problem of emissions pretty quickly. But in practice, our brain discounts the risks-and benefits-associated with issues that lie some way ahead.

　　[E]Matthew Rushworth, of the Department of Experimental Psychology at the University of Oxford, sees this in his lab every day. "One of the ways in which all agents seem to make decisions is that they assign a lower weighting to outcomes that are going to be further away in the future," he says. "This is a very sensible way for an animal to make decisions in the wild and would have been very helpful for humans for thousands of years."

　　[F] Not any longer. By the time we wake up to the threat posed by climate changes, it could well be too late. And it we're not going to make rational decisions about the future, others may have to help us to do so.

　　[G] Few political libraries are without a copy of Nudge: Improving Decisions About Health. Wealth and Happiness, by Richard Thaler and Cass Sunstein. They argue that governments should persuade us into making better decisions-such as saving more in our pension plans-by changing the default options. Professor Weber believes that environmental policy can make use of similar tactics. If, for example, building codes included green construction guidelines, most developers would too lazy to challenge them.

[H] Defaults are certainly part of the solution. But