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标题: [帮我]PREP 1-37 [打印本页]

作者: MissNewMe 时间: 2007-6-4 09:37
标题: [帮我]PREP 1-37

这道题我真的不知道它在说什么, 很晕啊!! 可以帮我看看吗~~~~谢谢!!

37. (32356-!-item-!-188;#058&006101)

Capuchin monkeys in Venezuela often rub a certain type of millipede into their fur. Secretions of these millipedes have been shown to contain two chemicals that are potent mosquito repellents, and mosquitoes carry parasites that debilitate the capuchins. The rubbing behavior is rare except during the rainy season, when mosquito populations are at their peak. Therefore, the monkeys probably rub the millipedes into their fur because doing so helps protect them against mosquitoes.

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 millipedes against their own predators
(B) Whether the type of millipede used by the capuchin monkeys in Venezuela is found in other parts of the world
(C) Whether animals other than capuchins rub insects of any kind into their fur
(D) Whether the only time the millipedes are readily available to the capuchins is during the rainy season
(E) Whether secretions of any other insects accessible to the capuchins contain chemicals that repel mosquitoes

答案是D~~~~帮帮我吧!~~~~谢谢

作者: qianrene 时间: 2007-6-4 13:57
一个猴子往身上擦东西，因为这个东西分泌的液体包含两个化学物质可以躯干蚊子，蚊子对猴子来说是有伤害的。这个擦东西动作只有在雨季才频繁发生，那个时候蚊子也多，所以猴子礤床这个东西是来帮助他们躯干蚊子的

作者: MissNewMe 时间: 2007-6-4 23:45
谢谢mm~~~~祝你考好~~~~~

作者: jeanyjhl 时间: 2008-7-17 08:12

題目條件: (1)猴子在雨季時把節肢動物弄到身上 (2) 雨季時蚊子最多

推論：猴子此行為是為了防蚊

要 evaluate 此推論

(A) irrelevant (millipedes' predators)

(B) irrelevant (in other parts of the world)

(D) YES => 猴子僅有雨季時可以找到 millipedes，不一定是因為雨季蚊子多有關 (有他因, weaken 原推論)

NO => 猴子此行為是為了防蚊 (排除他因, support 原推論)

(E) irrelevant (other insects' chemicals)

即使其他昆蟲亦分泌此化學物質，和猴子此行為也無關

[此贴子已经被作者于2008-7-17 8:14:10编辑过]

作者: iamsean 时间: 2008-9-14 11:04
楼上的MM强悍，理解好有关无关是关键

作者: keepexcel 时间: 2013-6-27 09:49

jeanyjhl 发表于 2008-7-17 08:12
題目條件: (1)猴子在雨季時把節肢動物弄到身上  (2) 雨季時蚊子最多推論：猴子此行為是為了防蚊要 eva ...

讲得好！

作者: niclively 时间: 2014-1-3 19:44

jeanyjhl 发表于 2008-7-17 08:12
題目條件: (1)猴子在雨季時把節肢動物弄到身上  (2) 雨季時蚊子最多推論：猴子此行為是為了防蚊要 eva ...

那如果E 中有的话猴子只用M那就说明用M不是来防蚊子咯不然它为什么防蚊子不用other insects呢？

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