2015年12月四六级真题及答案
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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."
【答案】
【解析】
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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。
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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 social scientists are most concerned about crafting messages that exploit our group mentality(心态). "We need to understand what motivates people, what it is that allows them to make change." says Professor Neil Adger, of the Tyndall Centre for Climate Change Research in Norwich. "It is actually about what their peers think of them, what their social norms are, what is seen as desirable in society." In other words, our inner caveman is continually looking over his shoulder to see what the rest of the tribe are up to.
[I] The passive attitude we have to climate change as individuals can be altered by continuing us in-and measuring us against-our peer group. "Social norms are primitive and elemental," says Dr.Robert Cialdini, author of Influence: The Psychology of Persuasion. "Birds flock together, fish school together, cattle herd together…… just perceiving norms is enough to cause people to adjust their behavior in the direction of the crowd."
[J] These norms can take us beyond good intensions. Caldini conducted a study in San Diego in which coat hangers bearing messages about saving energy were hung on people's doors. Some of the messages mentioned the environment, some financial savings, others social responsibility. But it was the ones that mentioned the actions of neighbours that drove down power use.
[K] Other studies show that simply providing the facility for people to compare their energy use with the local average is enough to cause them to modify their behaviour. The Conservatives plan to adopt this strategy by making utility companies print the average local electricity and gas usage on people's bills.
[L] Social science can also teach politicians how to avoid our collective capacity for self-destructive behavior. Environmental campaigns that tell us how many people drive SUVs unwittingly(不经意地)imply that this behavior is widespread and thus permissible. Cialdini recommends some careful framing of the message. "Instead of normalizing the undesirable buys yet another SUV, it reduces our ability to be energy-independent."
[M] Tapping into how we already see ourselves is crucial. The most successful environmental strategy will marry the green message to our own sense of identify. Take your average trade union member, chances are they will be politically motivated and be used to collective action-much like Erica Gregory. A retired member of the Public and Commercial Services Union, she is setting up one of 1,100 action groups with the support of Climate Solidarity, a two-year environmental campaign aimed at trade unionists.
[N] Erica is proof that a great-grandmother can help to lead the revolution if you get the psychology right-in this case, by matching her enthusiasm for the environment with a fondness for organizing groups. "I think it's a terrific idea," she says of the campaign. "The union backing it makes members think there must be something in it." She is expecting up to 20 people at the first meeting she has called, at her local pub in the Cornish village of Polperro.
[O] Nick Perks, project director for Climate Solidarity, believes this sort of activity is where the future of environmental action lies. "Using existing civil society structures or networks is a more effective way of creating change…… and obviously trade unions are one of the biggest civil society networks in the UK," he says. The "Love Food, Hate Waste" campaign entered into a collaboration last year with another such network-the Women's Institute. Londoner Rachel Taylor joined the campaign with the aim of making new friends. A year on, the meetings have made lasting changes to what she throws away in her kitchen. "It's always more of an incentive if you're doing it with other people," she says. "It motivates you more if you know that you've got to provide feedback to a group."
[P]The power of such simple psychology in fighting climate change is attracting attention across the political establishment. In the US, the House of Representatives Science Committee has approved a bill allocating $10 million a year to studying energy-related behavior. In the UK, new studies are in development and social scientists are regularly spotted in British government offices. With the help of psychologists, there is fresh hope that we might go green after all.
47.【题干】When people find they are powerless to change a situation, they tend to live with it.
【选项】
A.A
B.B
C.C
D.D
E.E
F.F
G.G
H.H
I.I
J.J
K.K
L.L
M.M
N.N
O.O
P.P
【答案】C
【解析】"When we can't actually remove the source of our fear, we tend to adapt psychologically by adopting a range of defence mechanisms,"
48.【题干】To be effective, environmental messages should be carefully framed.
【选项】
A.A
B.B
C.C
D.D
E.E
F.F
G.G
H.H
I.I
J.J
K.K
L.L
M.M
N.N
O.O
P.P
【答案】L
【解析】Cialdini recommends some careful framing of the message.
49.【题干】It is the government's responsibility to persuade people into making environment-friendly decisions.
【选项】
A.A
B.B
C.C
D.D
E.E
F.F
G.G
H.H
I.I
J.J
K.K
L.L
M.M
N.N
O.O
P.P
【答案】G
【解析】They argue that governments should persuade us into making better decisions.
50.【题干】Politicians are beginning to realise the importance of enlisting psychologists' help in fighting climate change.
【选项】
A.A
B.B
C.C
D.D
E.E
F.F
G.G
H.H
I.I
J.J
K.K
L.L
M.M
N.N
O.O
P.P
【答案】P
【解析】P段第一句“The power of such simple psychology in fighting climate change is attracting attention across the political establishment.”
51.【题干】To find effective solutions to climate change, it is necessary to understand what motivates people to make change.
【选项】
A.A
B.B
C.C
D.D
E.E
F.F
G.G
H.H
I.I
J.J
K.K
L.L
M.M
N.N
O.O
P.P
【答案】H
【解析】"We need to understand what motivates people, what it is that allows them to make change." says Professor Neil Adger, of the Tyndall Centre for Climate Change Research in Norwich
52.【题干】In their evolution, humans have learned to pay attention to the most urgent issues instead of long-term concerns.
【选项】
A.A
B.B
C.C
D.D
E.E
F.F
G.G
H.H
I.I
J.J
K.K
L.L
M.M
N.N
O.O
P.P
【答案】D
【解析】D第二句Evolution has programmed humans to pay most attention to issues that will have an immediate impact.
53.【题干】One study shows that our neighbours' actions are influential in changing our behavior.
【选项】
A.A
B.B
C.C
D.D
E.E
F.F
G.G
H.H
I.I
J.J
K.K
L.L
M.M
N.N
O.O
P.P
【答案】J
【解析】J段最后一句But it was the ones that mentioned the actions of neighbors that drove down power use.
54.【题干】Despire clear signs of global warming, it is not easy for most people to believe climate change will effect their own lives.
【选项】
A.A
B.B
C.C
D.D
E.E
F.F
G.G
H.H
I.I
J.J
K.K
L.L
M.M
N.N
O.O
P.P
【答案】B
【解析】B段第一句Despite mournful polar bears and charts showing carbon emissions soaring, most people find it hard to believe that global warming will affect them personally.
55.【题干】We should take our future into consideration in making decisions concerning climate change before it is too late.
【选项】
A.A
B.B
C.C
D.D
E.E
F.F
G.G
H.H
I.I
J.J
K.K
L.L
M.M
N.N
O.O
P.P
【答案】F
【解析】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.
56.【题干】Existing social networks can be more effective in creating in people's behaviour.
【选项】
A.A
B.B
C.C
D.D
E.E
F.F
G.G
H.H
I.I
J.J
K.K
L.L
M.M
N.N
O.O
P.P
【答案】O
【解析】O段第二句“Using existing civil society structures or networks is a more effective way of creating change……”对应题干。
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Section C
Passage One
More than a decade ago, cognitive scientists John Bransfgord and Daniel Schwartz, both then at Vanderbilt University, found that knowledge to a new situation but a quality was not the ability to retain facts or apply prior knowledge to a new situation but a quality they called "preparation for future learning." The researches asked fifth graders and college students to create a recovery plan to protect bald eagles from extinction. Shockingly, the two groups came up with plans of similar quality (through the college students had better spelling skills). From the standpoint of a traditional educator, this outcome indicated that schooling had failed to help students think about ecosystems and extinction, major scientific ideas.
The researches decided to go deeper, however. They asked both groups to generate questions about important issues needed to create recovery plans. On this task, they found large differences. College students focused on critical issues of interdependence between eagles("How big are they?" and "What do they eat?"). The college students had cultivated the ability to ask questions, the cornerstone of critical thinking. They had learned how to learn.
Museums and other institutions of informal learning may be better suited to teach this skill than elementary and secondly schools. At the Exploratorium in San Francisco, we recently studied how learning to ask good questions can affect the quality of people's scientific inquiry We found that when we taught participants to ask "What if?" and "How can?" questions that nobody present would know the answer to and that would spark exploration, they engaged in better inquiry at the next exhibit-asking more questions, performing more experiments and making better interpretations of their results. Specially, their questions became more comprehensive at the new exhibit. Rather than merely asking about something they wanted to try, they tended to include both cause and effect in their question. Asking juicy questions appears to be a transferable skill for deepening collaborative inquiry into the science content found in exhibits.
This type of learning is not confined to museums of institutional settings. Informal learning environment tolerate failure better than schools. Perhaps many teachers have too little time to allow students to form and pursue their own questions and too much ground to cover in the curriculum. But people must acquire this skill somewhere. Our society depend on them being able to make critical decisions about their own medical treatment, says, or what we must do about global energy needs and demands. For that, we have a robust informal system that gives no grades, takes all comers, and is available even on holidays and weekends.
57.【题干】What is traditional educators' interpretation of the search outcome mentioned in the first paragraph?
【选项】
A.Students are not able to apply prior knowledge to new problems
B.College students are no better than fifth graders in memorizing issues.
C.Education has not paid enough attention to major environmental issues.
D.Educated has failed to lead students to think about major scientific ideas.
【答案】D
【解析】第一段最后一句话From the standpoint of a traditional educator, this outcome indicated that schooling had failed to help students think about ecosystems and extinction, major scientific ideas.可以看出。
58.【题干】In what way are college students different from children?
【选项】
A.They have learned to think critically
B.They are concerned about social issues
C.They are curious about specific features.
D.They have learned to work independently
【答案】A
【解析】第二段倒数第二句The college students had cultivated the ability to ask questions, the cornerstone of critical thinking.可以得知A正确。
59.【题干】What is benefit of asking questions with no ready answers?
【选项】
A.It arouse students' interest in things around them.
B.It cultivates students' ability to make scientific inquiries.
C.It trains students' ability to design scientific experiments.
D.It helps students realize not every question has an answer
【答案】B
【解析】第三段的第三句提到了questions with no ready answers，表明“这些问题可以让人更加具有疑问精神，比如问更多问题、进行更多实验等”。
60.【题干】What is said to be the advantage of informal learning?
【选项】
A.It allows for failures
B.It is entertaining
C.It charges no tuition
D.It meets practical need.
【答案】A
【解析】由倒数第一段的第二句话“Informal learning environments tolerate failure better than schools”非正式学习是宽容对待失败的。可以得出A选项It allows for failures.
61.【题干】What does author seem to encourage educators to do at the end of the passage?
【选项】
A.Train students to think about global issues.
B.Design more interactive classroom activities.
C.Make full use of informal learning resources.
D.Include collaborative inquiry in the curriculum.
【答案】C
【解析】最后一段作者强调非正式学习的好处，尤其是最后一段的最后一句话，For that, we have a robust informal system that gives no grades, takes all comers, and is available even on holidays and weekends.
Passage Two
"There's an old saying in the space world: amateurs talk about technology, professionals talk about insurance." In an interview last year with The Economist, George Whitesides, chief executive of space-tourism firm Virgin Galactic, was placing his company in the latter category. But insurance will be cold comfort following the failure on October 31st of VSS Enterprise, resulting in the death of one pilot and the severe injury to another.
On top of the tragic loss of life, the accident in California will cast a long shadow over the future of space tourism, even before it has properly begun.
The notion of space tourism took hold in 2001 with a $20 million flight aboard a Russian spacecraft by Dennis Tito, a millionaire engineer with an adventurous streak. Just half a dozen holiday-makers have reached orbit since then, for similarly astronomical price tags. But more recently, companies have begun to plan more affordable "suborbital" flights-briefer ventures just to the edge of space's vast darkness. Virgin Galactic had, prior to this week's accident, seemed closest to starting regular flights. The company has already taken deposits from around 800 would be space tourists, including Stephen Hawking.
After being dogged by technical delays for years, Sir Richard Branson, Virgin Galactic's founder, had recently suggested that a SpaceShipTwo craft would carry its first paying customers as soon as February 2015. That now seems an impossible timeline. In July, a sister craft of the crashed spaceplane was reported to be about half-finished. The other half will have to wait, as authorities of America's Federal Aviation Administration (FAA) and National Transportation Safety Board work out what went wrong.
In the meantime, the entire space tourism industry will be on tenterhooks(坐立不安). The 2004 Commercial Space Launch Amendments Act, intended to encourage private space vehicles and services, prohibits the transportation secretary (and thereby the FAA) from regulating the design or operation of private spacecraft, unless they have resulted in a serious or fatal injury to crew or passengers. That means that the FAA could suspend Virgin Galactic's licence to fly. It could also insist on checking private manned spacecraft as thoroughly as it does commercial aircraft. While that may make subotbital travel safer, it would add significant cost and complexity to an emerging industry that has until now operated largely as the playground of billionaires and dreamy engineers.
How Virgin Galactic, regulators and the public respond to this most recent tragedy will determine whether and how soon private space travel can transcend that playground. There is no doubt that spaceflight entails risks, and to pioneer a new mode of travel is to free those risks, and to reduce them with the benefit of hard-won experience.
62.【题干】What is said about the failure of VSS Enterprise?
【选项】
A.It may lead to the bankruptcy of Virgin Galactic.
B.It has a strong negative impact on space tourism.
C.It may discourage rich people from space travel.
D.It has aroused public attention to safety issues.
【答案】B
【解析】第一段最后一句the accident in California will cast a long shadow over the future of space tourism, even before it has properly begun.可以看出VSS的失败是对太空旅行产生了消极的影响。
63.【题干】What do we learn about the space-tourism firm Virgin Galactic?
【选项】
A.It has just built a craft for commercial flights.
B.It has sent half a dozen passengers into space.
C.It was about ready to start regular business.
D.It is the first to launch "suborbital” flights.
【答案】C
【解析】第二段倒数第二句话Virgin Galactic had, prior to this week's accident, seemed closest to starting regular flights.可以看出C符合题意。
64.【题干】What is the purpose of the 2004 Commercial Space Launch Amendments Ace?(商业空间的发射修正案)
【选项】
A.To ensure space travel safety.
B.To limit the FAA's functions.
C.To legalize private space exploration.
D.Tp promote the space tourism industry.
【答案】D
【解析】文中第四段第二句提到这个法案是“intended to encourage private space vehicles and services”，也就是为了“推动太空旅游业”。
65.【题干】What might the FAA do after the recent accident in California?
【选项】
A.Impose more rigid safety standards.
B.Stop certifying new space-tourist agencies.
C.Amend its 2004 Commercial Space Launch Amendments Act.
D.Suspend Virgin Galactic's licence to take passengers into space.
【答案】D
【解析】根据关键词FAA定位到第四段，第三句“That means to suspend VG’s license to fly”可看出选项和选项D是相符的。
66.【题干】What does the author think of private space travel?
【选项】
A.It is worth promoting despite the risks involved.
B.It should not be confined to the rich only.
C.It should be strictly regulated.
D.It is too risky to carry on.
【答案】A
【解析】通过最后一句There is no doubt that spaceflight entails risks, and to pioneer a new mode of travel is to free those risks, and to reduce them with the benefit of hard-won experience.可以看出作者对私人太空之旅是持积极态度的。
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Part IV Translation
翻译(一)
在中国，父母总是竭力帮助孩子，甚至为孩子做重要决定，而不管孩子想要什么，因为他们相信这样做是为孩子好。结果，孩子的成长和教育往往屈从于父母的意愿。如果父母决定为孩子报名参加一个课外班，以增加其被重点学校录取的机会，他们会坚持自己的决定，即使孩子根本不感兴趣。然而在美国，父母可能会尊重孩子的意见，并在决策时更注重他们的意见。中国父母十分重视教育或许值得称赞。然而，他们应该向美国父母学习在涉及教育时如何平衡父母与子女间的关系。
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英语四级