回答下列各题： Global warming may or may not be the great enviromental crisis of the 21s

t century, but---regardless ofwhether it is or isnt--we wont do much about it. We will argue over it and may even, as a nation, make somefairly solemn-sounding commitments to avoid it. But the more dramatic and meaningful these commitments seem,the less likely they are to be observed. AI Gore calls giobal warming an "inconvenient truth," as if merely recognizing it could put us on a path to asolution. But the real truth is that we dont know enough to relieve global warming, and--without majortechnological breakthroughs--we cant do much about it. From 2003 to 2050, the worlds population is projected to grow from 6.4 billion to 9.1 billion, a 42% increase.If energy use per person and technology remain the same, total energy use and greenhouse gas emissions(mainly CO2) will be 42% higher in 2050. But thats too low, because societies that grow richer use more energy. We need economic growth unless we condemn the worlds poor to their present poverty and freeze everyone elsesliving standards. With modest growth, energy use and greenhouse emissions more than double by 2050. No government will adopt rigid restrictions on economic growth and personal freedom (limits on electricityusage, driving and travel) that might cut back global warming. Still, politicians want to show theyre "doingsomething." Consider the Kyoto Protocol(《京都议定书》). It allowed countries that joined to punish those thatdidnt. But it hasnt reduced CO2 emissions (up about 25% since 1990), and many signatories (签字国) didntadopt tough enough policies to hit their 2008-2012 targets. The practical conclusion is that if global warming is a potential disaster, the only solution is new technology.Only an aggressive research and development program might find ways of breaking our dependence on fossil fuelsor dealing with it. The trouble with the global warming debate is that it has become a moral problem when its really an engineering one. The inconvenient truth is that if we dont solve the engineering problem, were helpless. 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 requiring worldwide commitments.

C.Serious steps have been taken to avoid or stop it.

D.Very little will be done to bring it under control.

答案

D
[56]全球变暖可能是也可能不是21世纪重大的环境危机，但不管它是不是，我们都对它无能为力。我们会就它进行争论，甚至会以国家的名义做出一些冠冕堂皇的承诺，来避免全球变暖。但是这些承诺看起来越具有戏剧性、越有意义，人们就越不可能遵守它们。[57]阿尔·戈尔把全球变暖称作“令人为难的真相”，一就好像只要认识到它．我们就能找到解决办法一样。但真相却是，对于如何减缓全球变暖的进程我们知道的还不够多，而且如果在技术上没有重大突破，我们对它还是无能为力。从2003年到2050年，世界人口预计将会从64亿增加42％，达到9l亿。如果人均能源消耗量和技术水平依然维持现状，那么到2050年，总的能源消耗和温室气体(主要为二氧化碳)的排放量将会增加42％。但是这个数字远远低于实际水平，因为社会越富有，消耗的能源就越多。我们需要发展经济，除非我们想使世界上的穷人始终处于现在的贫穷状态并且使每个人的生活水平保持不变。[58]即使以中等速度增长，到2050年。能源消耗和温室气体的排放量也将至少翻一番。没有政府会采取严格的措施来限制经济发展和个人自由(即限制用电、开车和旅行)，以减缓全球变暖。然而，政治家们还是希望表现出他们正在“有所作为”。[59]想一想《京都议定书》：它允许缔约国惩罚非缔约国，但它羞没有减少二氢化碳的排放量(反而自1990年以盎增长了约25％)；而且，众多签字国也没有采取强硬的政篡以达到它们2008到2012年的目标。[60]实际的结论是，如果全球变暖是一场潜在的灾难，那么新技术是唯一的解决办法。只有大胆、积极的研究和发展计划才可能帮我们找到不再依赖化石燃料的方法或相应的对策。关于全球变暖的争论中存在的问题是，它现在已经成了道德问题，而实际上它只是个工程学问题。令人为难的真相是，如果我们不解决这个工程学问题，我们就真的束手无策了。D定位：根据题干中的inthefirstparagraph将答案定位到第一段。解析：本题问的是，关于全球变暖第一段讲了什么内容。当问到某一段的主要内容时，往往该段的第一句话或是最后一句话是这段的中心句。本文第一段的第一句话指出，“全球变暖可能是也可能不是21世纪重大的环境危机，但不管它是不是，我们都对它无能为力”。这正是这一段的中心，同时与D项所表达的意思一致，故D项正确。原文中的won’tdomuch相当于答案中的verylittlewillbedone。文中提到，“全球变暖可能是也可能不是21世纪重大的环境危机”，而选项A“最终可能发现它根本不是环境危机”与原文意思不符，过于绝对。B项错在第一段不是主要讲全球变暖问题是需要全世界关注的问题，而是说虽然人们做出了承诺，但很难履行。C项同样不正确，因为文中提到，我们做出了一些很难遵守的承诺，而没有说我们已经采取了重要措施去预防它，故排除c。

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