prep - 13题 救命呀 不懂呀

呼啸700

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.（答案）

(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.

叶泽嬴

wang81675250 发表于 2011-4-5 21:04
请问NN这道题A选项错在哪里啦？

a也是无关选项

春暖花开19

wang81675250 发表于 2011-4-5 21:04
请问NN这道题A选项错在哪里啦？

It mentioned THE COOLING EFFECT. It actually strengthen the argument by admitting the cooling effect.

春暖花开19

我个人觉得D选项不是一个无关选项，其实D选项是个加强原文的选项因为说可以阻挡变暖的趋势，所以是在加强文章观点。所以错误。

loveeyore

sdcar2010 发表于 2011-3-28 21:27
D is in fact a strengthener of the original argument, which claims that major eruptions cause the at ...

同意！               

ssxxtt27

D is in fact a strengthener of the original argument, which claims that major eruptions cause the atmosphere to become cooler than it would be otherwise. It simply provides a reason to explain how an erruption can stop the general WARMING trend for a brief time. So D is not a weakener for the question.

-- by 会员 sdcar2010 (2011/3/28 21:27:25)

Why a strenghener?
Personally,D is correct as well.
Stimulus:eruptions-->severe winter
D:The climatic effects of major volcanic eruptions mask the general warming(as an another reason)-->severe winter
Therefore,I can accept D.
Please correct me!

ssxxtt27

后半句，，，是说能够暂时性缓解这种由二氧化物。。。的excess 。。造成的变暖趋势。。。

这样看也是无关选项撒

-- by 会员 欧阳小西 (2011/3/28 21:07:16)

别老盯着后半句嘛 咱看看前半句
单看后半句确实无关，但是句子开头说的是the climatic effects of major volcanic eruptions导致的，也就是说后面的二氧化碳过量并不是凭空出现的，而是由effects造成的 所以我认为这并不是无关项

随风奔跑

请问NN这道题A选项错在哪里啦？

-- by 会员 wang81675250 (2011/4/5 21:04:20)

要削弱的结论是：eruptions引起天气比正常情况下冷
A说这种冷的效应会被太平热的不正常的水抵消。它并没有反对结论啊，火山爆发还是引起了天气变冷啊。

sdcar2010

The conclusion is: it is evident that major eruptions cause the atmosphere to become cooler than it would be otherwise.

A supports this conclusion by confirming that "The cooling effect triggered by volcanic eruptions in 1985 . . ."

wang81675250

请问NN这道题A选项错在哪里啦？