请问prep07 cr2 13！

starever

13. (25752-!-item-!-188;#058&002668)
An unusually severe winter occurred in Europe after the continent was blanketed by a blue haze resulting from the eruption of the Laki Volcano in the European republic of Iceland in the summer of 1984. Thus, it is evident that major eruptions cause the atmosphere to become cooler than it would be otherwise.
Which of the following statements, if true, most seriously weakens the argument above?
(A) The cooling effect triggered by volcanic eruptions in 1985 was counteracted by an unusual warming of Pacific waters.
(B) There is a strong statistical link between volcanic eruptions and the severity of the rainy season in India.
(C) A few months after El Chichn's large eruption in April 1982, air temperatures throughout the region remained higher than expected, given the long-term weather trends.
(D) The climatic effects of major volcanic eruptions can temporarily mask the general warming trend resulting from an excess of carbon dioxide in the atmosphere.
(E) Three months after an early springtime eruption in South America during the late 19th century, sea surface temperatures near the coast began to fall.

正确答案是C

在C和D之间犹豫了很久选了D

我觉得C描述的知识EI Chichn一个地方的现象，不够有说服力。
D说的是火山爆发的气候影响可以暂时掩盖因为大气中过多的二氧化碳造成的变暖趋势，也就是说火山爆发也是变暖的原因之一，因此掩盖的二氧化碳过多这个原因。。

是不是理解错了。。。
求解

starever

452272330 发表于 2013-4-11 19:21
The climatic effects of major volcanic eruptions can temporarily mask the general warming trend resu ...

明白了 谢谢！

452272330

The climatic effects of major volcanic eruptions can temporarily mask the general warming trend resulting from an excess of carbon dioxide in the atmosphere.
翻译过来就是：火山爆发造成的天气影响可以暂时掩盖由于大气中过多的二氧化碳导致的温度上升趋势。
it is evident that major eruptions cause the atmosphere to become cooler than it would be otherwise.
这个是火山爆发导致温度下降的证据。
问题要我们weaken这个argument。
既然火山爆发削弱了温度上升，所以这个选项是说支持了这个结论。所以不能选。

vischer

D supports the arguement

starever

没人吗。。。。

starever

好像忽然懂了一点。。
是不是火山爆发的影响掩盖了气候变暖这一现象，也就是本来二氧化碳过多应该变暖的，结果又没变暖，所以不能削弱原文。
到底是什么啊。。。