ChaseDream
搜索
123下一页
返回列表 发新帖
00:00:00

Kate: The recent decline in numbers of the Tennessee warbler, a North American songbird that migrates each fall to coffee plantations in South America, is due to the elimination of the dense tree cover that formerly was a feature of most South American coffee plantations.Scott: The population of the spruce budworm, the warbler's favorite prey in North America, has been dropping. This is a more likely explanation of the warbler's decline.

Which of the following, if true, most seriously calls Scott's hypothesis into question?

正确答案: A

更多相关帖子

524

帖子

15

好友

4712

积分

ChaseDream

注册时间
2003-03-17
精华
8
解析
查看: 16117|回复: 20
打印 上一主题 下一主题

prep新92,觉得答案有问题,明明就是无关项啊~~哪位G友帮我解释下??

[复制链接]
跳转到指定楼层
楼主
发表于 2010-5-2 23:15:34 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
92.    
Kate:  The recent decline in numbers of the Tennessee warbler, a North American songbird that migrates each fall to coffee plantations in South America, is due to the elimination of the dense tree cover that formerly was a feature of most South American coffee plantations.
Scott:  The population of the spruce budworm, the warbler's favorite prey in North America, has been dropping.  This is a more likely explanation of the warbler's decline.
Which of the following, if true, most seriously calls Scott's hypothesis into question?
A. The numbers of the Baltimore oriole, a songbird that does not eat budworms but is as dependent on South American coffee plantations as is the Tennessee warbler, are declining.
B. The spruce budworm population has dropped because of a disease that can infect budworms but not Tennessee warblers.
C. The drop in the population of the spruce budworm is expected to be only temporary.
D. Many Tennessee warblers have begun migrating in the fall to places other than traditional coffee plantations.
E. Although many North American songbirds have declined in numbers, no other species has experienced as great a decline as has the Tennessee warbler.
答案是A。D为什么不行?D说许多鸟开始在秋天迁徙到其他地方,不去coffee plantations了
这不就是削弱吗,说明鸟觉得coffee plantations那里不好了所以不去那里了。

A的话我之所以没选,是因为明明在讨论Tennessee warbler这种鸟,却牵扯出另外一种 Baltimore oriole鸟。而且这种鸟还和T不一样,因为它不吃budworms ,不吃的话自然b的减少对它没有影响了啊,但并不能说明T也不受b减少的影响啊。因而两者几乎不存在可比性。
因而我觉得A是无关项。

谁可以帮我解释下?难道说我思路错了?谢谢~~
收藏收藏 收藏收藏
推荐
发表于 2010-5-3 12:59:02 | 只看该作者
A是一个类比。要驳斥第二个人的论调,说更可能是因为没虫子鸟才不去的论调。就要证明这虫子不影响鸟儿。A里面说另一种Songbird跟这个Tennessee warbler都一样在此地生活(作类比),他们数量减少了,但是他们不吃虫子。既然虫子因素对这Songbird不起作用,那鸟儿数量减少就肯定是因为别的原因。再类比到Tennessee warbler身上,所以这就大大削弱了原句里的那个argument。
沙发
 楼主| 发表于 2010-5-2 23:47:43 | 只看该作者
睡觉前再顶一下我的贴贴~~~期待明早起来看到回复哦~~~~~~晚安~
板凳
发表于 2010-5-3 11:01:22 | 只看该作者
我觉得你的逻辑错误在于“许多鸟开始在秋天迁徙到其他地方,说明鸟觉得coffee plantations那里不好了所以不去那里了”。为什么一定推出是鸟觉得那里不好了呢?也可以就是因为没有虫吃所以不去那里了啊。
地板
 楼主| 发表于 2010-5-3 11:04:56 | 只看该作者
那那那A为什么好呢?你不觉得它提出一个新的鸟而且还和原先的这个习性不太一样的来对比说明么?这不是没有可比性么??
5#
 楼主| 发表于 2010-5-3 11:44:32 | 只看该作者
help help help~~~~~~~~~~~~~~~~~~~~~~~~~~~
7#
发表于 2010-10-8 21:24:19 | 只看该作者
我觉得你的逻辑错误在于“许多鸟开始在秋天迁徙到其他地方,说明鸟觉得coffee plantations那里不好了所以不去那里了”。为什么一定推出是鸟觉得那里不好了呢?也可以就是因为没有虫吃所以不去那里了啊。
-- by 会员 zxzxzx720 (2010/5/3 11:01:22)



这题真阴险。
换个例子
A: 犹太人population少了,因为德国没有外国城了.  
B:犹太人population少了,因为犹太人都饿死了.

A:太犹人和犹太人一样,虽然太犹人有钱,但是因为德国没有外国城了,所以population少了.
D 犹太人都去法国了.

犹太人去法国与文章条件不相关。 populatin少了就是少了.  但是太犹人就是类比.
说白了,5个answer里就A还比较像了。

这题阴险!!!
8#
发表于 2011-5-26 16:57:53 | 只看该作者
六楼的类比,经典!!
9#
发表于 2011-5-26 20:36:58 | 只看该作者
我也选的D。。。同不懂
10#
发表于 2011-5-26 21:29:05 | 只看该作者
芒鞋竹杖的推理很对
您需要登录后才可以回帖 登录 | 立即注册

Mark一下! 看一下! 顶楼主! 感谢分享! 快速回复:

手机版|ChaseDream|GMT+8, 2024-11-9 04:27
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号

ChaseDream 论坛

© 2003-2023 ChaseDream.com. All Rights Reserved.

返回顶部