发布时间 : 星期二 文章2008年6月21日大学英语四级真题答案更新完毕开始阅读e383432acfc789eb172dc881
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Passage One
Question 57 to 61 are based on the following passage.
Global warming may or may not be the great environmental crisis of the 21st century, but- regardless of whether it is or isn't - we won't do much about it. We will argue over it and may even, as a nation, make some fairly solemn-sounding commitments to avoid it. But the more dramatic and meaningful these commitments seem, the less likely they are to be observed.
A1 Gore calls global warming an \recognizing it could put us on a path to a solution. But the real truth is that we don't know enough to relieve global warming, and - without major technological breakthroughs - we can't do much about it.
From 2003 to 2050,the world 's population is projevted to grow from 6.4 billon to 9.1 billion ,a 42% increase.if energy use per person and technology remain te same,total energy use and greenhouse gas emissions(mainly,CO2)will be 42% higher in 2050.But that's too low,because societies that grow richer use more energy.We need econmic growth unless we condemn the world's poor to their present
Poverty and freeze everyone else's living standards.With
modest growth,energy use and greenhouse emissions more then double by 2050.
No government will adopt rigid restrictions on economic growth and personal freeom (limits on electricity usage,driving and
travel)that might cut back global warming.Still,politicians want to show they're \京都议定
书).It alowed countries that joined to punish those that didn't.But it hasn't reduced CO2 emissions(up about 25% since 1990),and many
signatories(签 字国) didn't adopt tough enough policies to hit their 2008-2012 targets.
The practical codusion is that if global warming is a
potential disaster,the only solution is new technology.Only an aggressive research and development program miaght find ways of breaking our dependence on fossil fuels or dealing with it.
The trouble with the global warming debate is that it has become a moral proble when it's teally an engineering one.The inconvenient truth is that if we don't solve the engineering problem, we're helpless.
57.What is said about global warming in the first paragraph? A) It may not prove an environmental crisis at all. B) It is an issue repuiring worldwide commitments. C) Serious steps have been taken to avoid or stop it. D) Very little will be done to bting it undet control.
58.According to the author's understanding, what is A1 Gore's view on global warming?
A) It is a reality both people and politicians are unawre of. B) It is a phenomenon that causes us many inconveniences. C) It is a problem that can be solved once it is recognized. D) It is an area we actually have little knowledge about.
59.Greenhouse emissions will more than double by 2050 because of ___. A) economic growth
B) wasteful use of energy
C) the widening gap between the rich and poor D) the rapid advances of science and technology
60.The author believes that, since the signing of the Kyoto Protocol,____. A) politicians have started to do something to better the situation B) few nations have adopted real tough measures to limit energy use C) reductions in energy consumption have greatly cut back global warming D) international cooperation has contributed to solving envoronmental problems
61.What is the message the author intends to convey?
A) Global warming is more of a moral issue than a practical one. B) The ultimate solution to global warming lies in new technology. C) The debate over global warming will lead to technological breakthroughs. D) People have to give up certain material comforts to stop global warming.
Passage Two
Question 62 to 66 are based on the following passage.
Someday a siranger will read your e-mail without your permission or scan the Website you've visited，Or perhaps someone will casually glance through your credit card purchases or cell phonebills to find out your shopping preferences or calling habits.
In fact, it's likely some of these things have already happened to you. Who would watch you without your permisson? It might be a spous, a girlfreiend, a marketing company, a boss, a cop or a criminal. Whoever it is, they will see you in a way you never intended to be seen - the 21st century equivalent of being caught naked.
Psychologists tell us boundaries are healthy, that it's important to reveal yourself to friends, family and lovers in stages, at appropriate times. But few boundaries remain. The digital bread crumbs(碎屑) you leave everywhere make it easy for strangers to reconstruct who you are, where
you are and what you like. In some cases, a simple Google search can reveal what you think. Like it or not, increasingly we live in a world where you simply cannot keep a secret.
The key question is: Does that matter?
For many Americans, the answer apparently is \
When opinion polls ask Americans about privacy, most say they are concerned about losting it. A survery found an overwhelming pessimism about privacy, with 60 percent of respondents saying they feel their privacy is \
But people say one thing and do another. Only a tiny fraction of Americans change any behaviors in an effort to preserve their privacy. Few people turn down a discount at tollbooths(收费站) to avoid using the EZ-Pass system that can track automobile movements. And few turn donw supermarket loyalty cards. Privacy economist A lessandro Acauisti has run a series of tests that reveal people will surrender personal information like Socail Security numbers just to get their hands on a pitiful 50-cents-off coupon(优惠卷)。
But privacy does matter - at least sometimes. It's like health: When you have it, you don't notice it. Only when it's gone do you wish you'd done more to protect it.
62. What does the author mean by saying \being caught naked\
A) People's personal information is easily accessed without their knowledge. B) In the 21st century people try every means to look into others' secrets. C) People tend to be more frank with each other in the information age. D) Criminals are easily caught on the spot with advanced technology.