T-9-Q40.

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 brains 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?

1. No part of a person’s brain that is damaged by a stroke never recovers

2. Impairment of linguistic capabilities does not occur in people who have not suffered any damage to any language center of the brain.

3. Strokes tend to impair linguistic capabilities more severely than does any other cause of damage to language centers in the brain.

4. 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.

5. 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.

答案是D。我个人认为是B。请指点。还有，T字头的到底是什么题目啊？为什么比其它题目都难啊？

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

1. No part of a person’s brain that is damaged by a stroke never recovers

2. Impairment of linguistic capabilities does not occur in people who have not suffered any damage to any language center of the brain.

3. Strokes tend to impair linguistic capabilities more severely than does any other cause of damage to language centers in the brain.

4. 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.

5. 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.

答案是D。我个人认为是B。请指点。还有，T字头的到底是什么题目啊？为什么比其它题目都难啊？

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

1. No part of a person’s brain that is damaged by a stroke never recovers

2. Impairment of linguistic capabilities does not occur in people who have not suffered any damage to any language center of the brain.

3. Strokes tend to impair linguistic capabilities more severely than does any other cause of damage to language centers in the brain.

4. 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.

5. 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.

答案是D。我个人认为是B。请指点。还有，T字头的到底是什么题目啊？为什么比其它题目都难啊？

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

1. No part of a person’s brain that is damaged by a stroke never recovers

2. Impairment of linguistic capabilities does not occur in people who have not suffered any damage to any language center of the brain.

3. Strokes tend to impair linguistic capabilities more severely than does any other cause of damage to language centers in the brain.

4. 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.

5. 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.

答案是D。我个人认为是B。请指点。还有，T字头的到底是什么题目啊？为什么比其它题目都难啊？

T for TianShan, I think

取非

D if people have the centers on the left and they are not affected, the people should be normal and health, thus seriously undermine the argument.

B it is not related, notice that the question focus on "people who have suffered a serious stroke on the left side of the brain"

Hope this helps

Miles

多谢斑竹指点！！！

大脑语言中心被破坏，lc会impaired=>大脑语言中心被袭击而lc没impaired,那么语言中心在右脑

前提与结论存在的差异是：破坏与袭击，所以题目的假设就是：袭击对大脑造成破坏

我的理解是这样的：从stroke到impairment有两步，第一步是stroke

必须要造成damage ,第二步是damage必须要造成impairment.两个都是前提

。但是文中已经肯定了第二个前提：When a language center of the

brains is damaged, for example, by a stroke, linguistic

capabilities are impaired in some way。所以只需点出第一个前提，即

D。而B把双重否定去掉变成肯定后基本上就是重复原文已经肯定了的第二

个前提，所以没什么意义。

不知道这样理解对不对~~~