请教CXD-评价-2

joywzy

albert,

能否再请教你一题评价题，也是LSAT上的，我拿不定。看来还是没有明白评价的解题方法。

8. George: Some scientists say that global warming will occur because people are releasing large amounts of carbon dioxide into the atmosphere by burning trees and fossil fuels. We can see, though, that the predicted warming is occurring already. In the middle of last winter, we had a month of springlike weather in our area, and this fall, because of unusually mild temperatures, the leaves on our town抯 trees were three weeks late in turning color.

Which one of the following would it be most relevant to investigate in evaluating the conclusion of George抯 argument?

(A) whether carbon dioxide is the only cause of global warming

(B) when leaves on the trees in the town usually change color

(C) what proportion of global emissions of carbon dioxide is due to the burning of trees by humans

(D) whether air pollution is causing some trees in the are to lose their leaves

(E) whether unusually warm weather is occurring elsewhere on the globe more frequently than before

答案：E，　这种评价题有什么思路吗？我觉得A，B，C都相关啊。

谢谢。

albert

could you please tell me where is question come from? I mean which section do you excerpt from? It seems that you just process on the LSAT7...but I haven't done LSAT1-7 yet... I did LSAT from LSAT8....So if you could tell me from which section the question is extract from, I will do the section doday and try to help you after that...sorry for your inconvenience, but I want to keep every LSAT question fresh for me before I do the whole section, otherwise the LSAT practice is unvaluable for me..thanks..

joywzy

albert, thank you for your kind help.

that is LSAT-7-IV-8.

albert

评价，SUPPORT，WEAKEN都一定要抓住原文的主要矛盾。。
原文：先引用专家：LARGE AMOUNT OF CARBON DIOXIDE将要引起全球气温转暖（观点），然后驳斥专家：其实全球转暖已经开始了（驳观点，CONCLUSION）通过自己当地的气温变化来作为例子（EVIDENCE） 我们现在要EVALUATE的就是EVIDENCE能支持CONCLUSION吗？


A) whether carbon dioxide is the only cause of global warming

(B) when leaves on the trees in the town usually change color

(C) what proportion of global emissions of carbon dioxide is due to the burning of trees by humans

(D) whether air pollution is causing some trees in the are to lose their leaves

(E) whether unusually warm weather is occurring elsewhere on the globe more frequently than before

A  。。。。是否是主要原因和EVIDENCE及CONCLUSION都无关
B WHEN。。。也是无关。。因为EVIDENCE只关心的是落叶提前了。。而一般什么时候落叶并不重要
C 。。。增加中有多少是烧树造成的。。。和EVIDENCE及CONCLUSION也无关。
D原文提到的EVIDENCE是比较现在的秋天转黄的时间和以前的时间。。和落叶无关。。
E 抓住了原文EVIDENCE和CONCLUSION的GAP，即由局部地区变化推全体。。需要E的答案来填补这个GAP

joywzy

albert, thank you for your clear explanation.

U seem to grasp the logic link and essence of logic in gmat. Wish u get excellent score in GMAT.

Thank you.