求GWD-3-Q40一道

kudoucliff · 发表于 2010-7-30 23:01:40

For most people, the left half of the brain controls linguistic capabilities, but some people have their language centers in the right half.When a language center of the brain is damaged, for example by a stroke, linguistic capabilities are impaired in some way.Therefore, people who have suffered a serious stroke on the left side of the brain without suffering any such impairment must have their language centers in the right half.

Which of the following is an assumption on which the reasoning in the argument above depends?

No part of a person’s brain that is damaged by a stroke ever recovers.
Impairment of linguistic capabilities does not occur in people who have not suffered any damage to any language center of the brain.
Strokes tend to impair linguistic capabilities more severely than does any other cause of damage to language centers in the brain.
If there are language centers on the left side of the brain, any serious stroke affecting that side of the brain damages at least one of them.
It is impossible to determine which side of the brain contains a person’s language centers if the person has not suffered damage to either side of the brain.
这题答案是E，但是我觉得B更合理啊；原文说如果linguistic center被damage的话就不能说话，所以如果left brain被damage而仍然能说话的话，那么right brain就是linguistic center；对E取非，如果people不用suffer damage也能determine，这个最多就能推出那么没必要damage来determine，和结论没有关系啊……

sayysong · 发表于 2010-7-30 23:18:21

When a language center of the brain is damaged, for example by a stroke, linguistic capabilities are impaired in some way
这里提到了damage和linguistic capabilities的关系。
people who have suffered a serious stroke on the left side of the brain without suffering any such impairment must have their language centers in the right half.
这里提到了damage和brain的关系。
问假设。
看题干，出现三个事物，damage，linguistic capabilities，brain。其中和的关系已经阐述，要找的假设就是之间的关系的描述。
B中重复了的关系，而E中阐述的正是之间的关系，选E。
个人意见，仅供参考。

kudoucliff · 发表于 2010-7-30 23:32:32

万谢，很有道理！

sugaryun · 发表于 2010-7-30 23:33:55

E选项的意思是如果人脑没有损伤，就无法确定语言中心在脑的哪一边。这是前后两个否定的形式，换句话说：人脑发生损伤，就能确定语言中心在脑的哪一边。这恰恰就是结论的必要条件。结论是说人左脑中风了，而语言能力未损伤，说明此人语言中心在右脑。

求GWD-3-Q40一道

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