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GRE阅读复习:2012年最新阅读从情境到技能二

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2012-06-17 19:59

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复习

【 liuxue86.com - GRE阅读 】

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我们以一篇样题为例看一下ETS是如何考察文章内部的复杂逻辑:
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.
1. The passage implies which of the following about the current cost of generating electricity?
It is higher than it would be if better technologies for capturing carbon dioxide were available.
It is somewhat less than the cost of electricity transmission and distribution.
It constitutes at most half of the delivered price of electricity.
It is dwelt on by policymakers to the exclusion of other costs associated with electricity delivery.
It is not fully recovered by the prices charged directly to electricity consumers.
对黑色部分文字的逻辑进行提炼我们发现,得出这样一个逻辑推理链条。 中华考试网(www.Examw。com)
环保技术(technology that would capture carbon dioxide emitted by power plants and sequester it harmlessly underground or undersea instead of releasing it into the atmosphere)增加一倍发电成本(double the cost of generating electricity)。环保技术不改变传输成本(the cost of electricity transmission and distribution)。最终价格(delivered prices)增加不超过50%。
最终价格=发电成本+传输成本
使用环保技术后,发电成本增加了原来的一倍,但是最终价格增长不超过50%,可以得出结论,发电成本,最多占最终价格的50%。 来自www.Examw.com
以上文字同传统GRE考试文章比起来,语言难度不大。难度来自于逻辑复杂,尤其是在有较大的时间压力的情况下,能够快速清晰的得出结论,并不容易。

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