西安gmat培训机构逻辑评估题只需一种技巧

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西安gmat培训机构逻辑评估题只需一种技巧

西安gmat培训机构，西安GMAT培训学校，Gmat考试中，逻辑-评估题是常见的一种题型，老师教大家一种此类题型的方法。

Evaluation questions

步骤1：如识别原始答案是正面强化题干里的逻辑关系的

步骤2：且，否定原始答案 not it 将削弱原文主干逻辑

理论：也就是 正确答案不管是否正面强化且同时否定都能做到评估逻辑成立的与否

例题如下：

1.E monkeys in Rome often rub a certain type of worm into their fur. Secretions of these worms have been shown to contain two chemicals that are potent bee repellents, and bees carry parasites that debilitate the Es. The rubbing behavior is rare except during the rainy season, when bee populations are at their peak. Therefore, the monkeys probably rub the worms into their fur because doing so helps protect them against bees.

Which of the following would it be most useful to determine in order to evaluate the argument?

A.whether the two chemicals provide any protection for the worms against their own predators.

B.Whether the type of worm used by the E monkeys in Rome is found in other parts of the world.

C.Whether animals other than Es rub insects of any kind into their fur.

D.Whether the only time the worms are readily available to the Es is during the rainy season.

E.Whether secretions of any other insects accessible to the Es contain chemicals that repel bees.

主干逻辑链：E猴子常常挠一种蠕虫 - 而这种虫子的分泌物包含2种化学物质（可以抵制蜜蜂- 而这种蜜蜂附带寄生虫对E猴子有害 ）——条件1：前面两横逻辑链简单总结为E猴子可以通过挠这种蠕虫抵抗蜜蜂附带的有害寄生虫；条件2：这种挠的行为是很的除了再雨季时 而这时蜜蜂数量也是在高峰期

结论：E猴子为了保护他们抵抗蜜蜂，才很有可能才有这样的习惯。

条件1+条件2=结论

答案D：对D进行步骤1，仅仅在雨季他们可以接触到这些蠕虫，可以让他们很好的抵御蜜蜂，加强了文章的结论。对D进行步骤2否定答案，说明除了雨季其他季节也可以有这样的行为，所以雨季时的这种习惯也不一定是防止寄生虫的=理解为蠕虫的作用不一定是抵抗蜜蜂寄生虫的

那么也到了评估题目逻辑链的：加强或削弱结论成立性。

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