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标题: OG-66(链接中无), 解释 [打印本页]

作者: snowjing 时间: 2005-7-22 00:42
标题: OG-66(链接中无), 解释

OG66

Male bowerbirds construct elaborately decorated nests, or bowers. Basing their judgment on the fact that different local populations of bowerbirds of the same species build bowers that exhibit different building and decorative styles, researchers have concluded that the bowerbirds’ building styles are a culturally acquired, rather than a genetically transmitted, trait.

Which of the following, if true, would most strengthen the conclusion drawn by the researchers?

(A) There are more common characteristics than there are differences among the bower-building styles of the local bowerbird population that has been studied most extensively.

(B) Young male bowerbirds are inept at bower-building and apparently spend years watching their elders before becoming accomplished in the local bower style.

(C) The bowers of one species of bowerbird lack the towers and ornamentation characteristic of the bowers of most other species of bowerbird.

(D) Bowerbirds are found only in New Guinea and Australia, where local populations of the birds apparently seldom have contact with one another.（B）

(E) It is well known that the song dialects of some songbirds are learned rather than transmitted genetically.

答案没问题，就是OG关于A.D的解释没看懂，请帮忙解释，谢谢！

OG关于A.D的解释：

That differences within building styles are outnumbered by similarities (choince A) and that local populations have little contact (choice D) are both equally consistent with building style differences being culturally acquired or genetically transmitted.

我的理解是A选项应该是genetically transmitted, 但若是D表示的是culturally acquired, 那它可以strengthen the conclusion吗？另外，OG的解释为何要这样表达？

作者: snowjing 时间: 2005-7-22 10:52
UP!

作者: snowjing 时间: 2005-7-22 23:21

UP!

作者: snowjing 时间: 2005-7-24 05:08
again!

作者: snowjing 时间: 2005-7-26 05:46

老是没有人回答，每次review帖子也蛮花时间的，请大家帮助啊!!!

Up!!!

作者: howardwang 时间: 2005-7-26 09:27

是说在选项A和D中，后天习得与遗传在确定建筑风格上，是无差别的；也就是说，无法确定是建筑风格是后天习得还是遗传的。

作者: snowjing 时间: 2005-7-27 04:54
好像体会不出后天习得与遗传同时存在的感觉。能详细说明吗？

作者: howardwang 时间: 2005-7-27 12:16

同时不存在，对其影响也是无差别的。即是无关选项阿。

作者: snowjing 时间: 2005-10-1 11:51

以下是引用ring_cheng在2005-6-21 22:41:00的发言：

here is my two cents:

(A) There are more common characteristics than there are differences among the bower-building styles of the local bowerbird population that has been studied most extensively —>不同群族的鸟建不同的房子，而同一族群(population)的鸟的建筑既有不同点又有相似点，说明有些可能是因为后天的学习，而有些可能来自于遗传

(D) Bowerbirds are found only in New Guinea and Australia, where local populations of the birds apparently seldom have contact with one another. —>鸟群间不相往来说明同一群族的鸟不会向其它群族的鸟学习，但并不影响同一鸟群内部的相互学习或者遗传

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作者: sigrid920 时间: 2006-10-17 23:41
想问问OG11对D项的解释,since no information is given about the nesting-building styles of these populations(whether or not they are of the same species), the fact that they have little contact neither strengthern nor weaken the conclusion. 我的疑问是, 它说文章没有提到new guinea 和australia, 所以无关. 但是D明明说了这种鸟只在这两地才有, 所以文章中说的鸟的情况就是这两地鸟的情况, 不算提到了吗?

作者: sigrid920 时间: 2006-10-22 09:20

再问再问~~!!

作者: cccccc0 时间: 2006-11-28 21:03
up

作者: 卡布奇诺L 时间: 2008-3-2 23:31
UP!UP!UP!UP!!

作者: 卡布奇诺L 时间: 2008-3-4 22:24

哦,明白了~D的解释是说,答案根本没提房屋建筑的问题,所以D答案不能加强文章.因为要加强的是这种鸟的建筑风格是从文化中得到的

作者: 沧海剑客 时间: 2009-5-10 21:40

我的理解是，假如，即使同一家里面的style一样，只要没有说明是文化习得（需要时间慢慢学习）还是基因遗传（生下来马上就一样），都不能算正确答案。

而B就明确说了是慢慢学会的。

感觉这道题需要common sense：文化习得需要时间，基因遗传不需要时间。否则很难做对。

[此贴子已经被作者于2009-5-10 21:44:38编辑过]

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