来源:www.putclub.com 2019-04-04

Global warming 
On Feb. 2, 2007, the United Nations scientific panel studying climate change declared that the evidence of a warming trend isunequivocal,” and that human activity hasvery likelybeen the driving force in that change over the last 50 years. The last report by the group, the Intergovernmental Panel on Climate Change, in 2001, had found that humanity hadlikelyplayed a role.
The addition of that single wordverydid more than reflect mounting scientific evidence that the release of carbon dioxide and other heat-trapping gases from smokestacks, tailpipes and burning forests has played a central role in raising the average surface temperature of the earth by more than 1 degree Fahrenheit since 1900. It also added new momentum to a debate that now seems centered less over whether humans are warming the planet, but instead over what to do about it. In recent months, business groups have banded together to make unprecedented calls for federal regulation of greenhouse gases. The subject had a red?carpet moment when former Vice President Al Gores documentary, “An Inconvenient Truth,” was awarded an Oscar; and the Supreme Court made its first global warming-related decision, ruling 5 to 4 that the Environmental Protection Agency had not justified its position that it was not authorized to regulate carbon dioxide.
The greenhouse effect has been part of the earth?s workings since its earliest days. Gases like carbon dioxide and methane allow sunlight to reach the earth, but prevent some of the resulting heat from radiating back out into space. Without the greenhouse effect, the planet would never have warmed enough to allow life to form. But as ever larger amounts of carbon dioxide have been released along with the development of industrial economies, the atmosphere has grown warmer at an accelerating rate: Since 1970, temperatures have gone up at nearly three times the average for the 20th century.
The latest report from the climate panel predicted that the global climate is likely to rise between 3.5 and 8 degrees Fahrenheit if the carbon dioxide concentration in the atmosphere reaches twice the level of 1750. By 2100, sea levels are likely to rise between 7 to 23 inches, it said, and the changes now underway will continue for centuries to come.



单单增加的“极其”这个词,不仅仅反映了科学证据的逐步增加——诸如,从烟囱和管道排放出来的二氧化碳和其他可导致温室效应的气体,以及烧毁森林,都是致使地球表面平均温度从1900年以来上升1华氏摄氏度以上的重要原因——而且,还为现如今人类的主要工作从以讨论“全球变暖是不是人类所导致”为中心,转向探讨“如何对付全球变暖”提供了新的推动力。在最近几个月,大的商业集团首次联合起来呼吁制定控制温室气体的联邦政府规则,这个呼吁在美国前副总统戈尔的记录片《难以忽视的真相》获得奥斯卡奖后得到了非常热烈的响应。最高法院以5比4作出了他们第一个关于全球变暖的裁决,但环境保护署没有证明它未授权规范二氧化碳的立场。 #p#副标题#e#


panel n.①面,板;②控制板,仪表盘;③专门小组
[真题例句] They have built robots that can recognize the error of a machine panel (②) by a fraction of a millimeter in a controlled factory environment.

[例句精译] 他们建造的机器人在严格控制的工厂环境里,能够在仪表盘上识别毫米以下的误差。
[真题例句] The panel (③) then informally accepted several general conclusions, although some details have not been settled.[1999年阅读4]
[例句精译] 随后,该小组非正式地接受了几条笼统的结论,尽管有些细节尚无定论。
unequivocal  a.不含糊的

momentum  n.动力,要素
unprecedented a.空前的 
[真题例句] Writing for the National Immigration Forum, Gregory Rodriguez reports that todays immigration is neither at unprecedented level nor resistant to assimilation.[2006年阅读1]
[例句精译] 格雷戈里·罗德里格兹在《国家移民论坛》中写到,今天的移民既没有达到空前绝后的水平也没有能抵挡住同化作用。
justify  v.证明…是正当的,认为有理
[真题例句] An education that aims at getting a student a certain kind of job is a technical education, justified for reasons radically different from why education is universally required by law.[1999年阅读3]
[例句精译] 旨在使学生胜任某种工作的教育是职业教育,它存在的理由与法律所规定的普及教育之间有很大差别。
radiate  v.①放射,辐射;②散布,传播