GWD-3-38

幽幽sally

 题：鸟（depend on coffee….）少了是因为虫少了。

A：另一种鸟（不吃这种虫,but depend on coffee….）也少了。说明不是虫的原因，削弱了Scott，加强了是coffee的原因。。

barefootmarmot

已开始也觉得A是无关项，再看看的确是削弱的。还是没有抓住结论阿。

cccccc0

和这题蛮像的

9. A conservation group in the United States is trying to change the long-standing image of bats as frightening creatures. The group contends that bats are feared and persecuted solely because they are shy animals that are active only at night.

 

Which of the following, if true, would cast the most serious doubt on the accuracy of the group’s contention?

A. Bats are steadily losing natural roosting places such as caves and hollow trees and are thus turning to more developed areas for roosting.

B. Bats are the chief consumers of nocturnal insects and thus can help make their hunting territory more pleasant for humans.

C. Bats are regarded as frightening creatures not only in the United States but also in Europe, Africa, and South America.

D. Raccoons and owls are shy and active only at night; yet they are not generally feared and persecuted.
            D

E. People know more about the behavior of other greatly feared animal species, such as lions, alligators, and greatly feared animal species, such as lions, alligators, and snakes, than they do about the behavior of bats.
                

canols

我怎么觉得应该选B呢，prey死是因为disease,但是这种鸟吃这种虫子不会死，所以数量就不会下降，就把那个解释call into question了

请大家赐教，刚开始复习

Rayakawr

以下是引用无比在2006-7-26 16:29:00的发言：

A    选项中的Baltimore oriole鸟,和题干中的Tennessee warbler一样依赖咖啡树栖息,   且B鸟的食物和T鸟的不同.而B鸟的数量也在减少.说明T鸟的食物budworm的减少不是造成T鸟减少的原因.而咖啡树的日渐稀少才是原因...

是这样理解吗?

Completely agree with you.

hopelanxyn

以下是引用cccccc0在2007-1-7 17:07:00的发言：

和这题蛮像的

9. A conservation group in the United States is trying to change the long-standing image of bats as frightening creatures. The group contends that bats are feared and persecuted solely because they are shy animals that are active only at night.

Which of the following, if true, would cast the most serious doubt on the accuracy of the group’s contention?

A. Bats are steadily losing natural roosting places such as caves and hollow trees and are thus turning to more developed areas for roosting.

B. Bats are the chief consumers of nocturnal insects and thus can help make their hunting territory more pleasant for humans.

C. Bats are regarded as frightening creatures not only in the United States but also in Europe, Africa, and South America.

D. Raccoons and owls are shy and active only at night; yet they are not generally feared and persecuted.
   D

E. People know more about the behavior of other greatly feared animal species, such as lions, alligators, and greatly feared animal species, such as lions, alligators, and snakes, than they do about the behavior of bats.
    

和这题是有点象,但是也不象.如果按上面这题的思路,结论应该是:另外一种也具有这种特征(吃SPRUCE BUDWORM)的生物数量没有减少

但是题目给的是:不具有这种特征的鸟(即不吃这个虫)数量减少了  ;    个人觉得这个结论跟SCOTT的结论联系不紧密

同时,似乎这个结论应结合KATE的结论看,因为另外一种不吃这个虫,但是依靠PLANATATION的鸟数量也减少了, 似乎有些弱弱的支持了KATE的原因.

如果支持了KATE的话,则是削弱了SCOTT

不知分析的对不对!!!

snow821017

异因同果型削弱

tangyuehua

以下是引用hopelanxyn在2007-10-21 4:38:00的发言：

和这题是有点象,但是也不象.如果按上面这题的思路,结论应该是:另外一种也具有这种特征(吃SPRUCE BUDWORM)的生物数量没有减少

但是题目给的是:不具有这种特征的鸟(即不吃这个虫)数量减少了  ;    个人觉得这个结论跟SCOTT的结论联系不紧密

同时,似乎这个结论应结合KATE的结论看,因为另外一种不吃这个虫,但是依靠PLANATATION的鸟数量也减少了, 似乎有些弱弱的支持了KATE的原因.

如果支持了KATE的话,则是削弱了SCOTT

不知分析的对不对!!!

我觉得A项通过支持Kate的观点，来削弱Scott的观点（严格来讲，并没有多大程度的削弱）。因为A项中通过另一种鸟的例子完全排除了虫子因素的影响，说明的确是Tree的减少而导致Warbler的下降。

个人觉得，如果题目问哪个选项支持Kate的观点，似乎A项更贴切一些。。。

woaiqiuqiu

这道题用的是异因同果，狒狒的逻辑课上讲过，同样是一种songbird且不以食S为生和文中的songbird一样依赖于那的地理气候减少了，正好证明了不是因为食物减少才减少而是因为气候

jesuisdesole

S和K提出两个相互对峙的观点

反对K的方法：直接反对K或支持S，

A为支持S，正确