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只看楼主 正序阅读 使用道具 楼主  发表于: 2011-08-10


Sample questions 1 to 3 below are based on this passage:


Policymakers must confront the dilemma that fossil fuels continue to be an indispensable source of energy even though burning them produces atmospheric accumulations of carbon dioxide that increase the likelihood of potentially disastrous global climate change. Currently, technology that would capture carbon dioxide emitted by power plants and sequester it harmlessly underground or undersea instead of releasing it into the atmosphere might double the cost of generating electricity. But because sequestration does not affect the cost of electricity transmission and distribution, delivered prices will rise less, by no more than 50 percent. Research into better technologies for capturing carbon dioxide will undoubtedly lead to lowered costs.

(第一种题型:多项选择题I)



Sample Multiple-choice Questions — Select One Answer Choice


1.  The passage implies which of the following about the current cost of generating electricity?
A.     It is higher than it would be if better technologies for capturing carbon dioxide were available.
B.     It is somewhat less than the cost of electricity transmission and distribution.
C.    It constitutes at most half of the delivered price of electricity.
D.    It is dwelt on by policymakers to the exclusion of other costs associated with electricity delivery.
E.     It is not fully recovered by the prices charged directly to electricity consumers.

Answer: C

解析:首先,我们需要找到题干文句中的定位关键词 “the current cost of generating electricity”。之后,将这个关键词定位到文章中去,发现这组定位词出现在文章当中的第二句话当中:“Currently, technology that would capture carbon dioxide emitted by power plants and sequester it harmlessly underground or undersea instead of releasing it into the atmosphere might double the cost of generating electricity.”我们发现文章的下一句话当中出现了这样的比例关系。“But because sequestration does not affect the cost of electricity transmission and distribution, delivered prices will rise less, by no more than 50 percent.”这说明“sequestration”所占的比重不超过总费用的二分之一。既然只有“发电”和“减排”两个过程。那么,发电的花费当然是最多只能占到二分之一了。答案C所说正是:“It constitutes at most half of the delivered price of electricity.”故选。通过这道题目,我们发现ETS在新GRE考试中沿用了传统GRE考试的解题套路。

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