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OG 11th #89

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11#
发表于 2006-10-20 08:44:00 | 只看该作者

能像我这样理解吗?举个例子吧:

小张长得很好看,她是个演员; 小李长得跟小张一样好看,所以小李也是演员.

(A)长得好看的姑娘除了当演员什么也做不了.

(B)演员长得都好看.(不对,就算演员长得都好看,长得好看的也不一定都是演员啊,老师也可以是美女呀~!!)道理是逆命题不一定成立.

(E)当演员必需要长得好看.(不对,同(B)一个道理)

能这样理解吗?


[此贴子已经被作者于2006-10-20 8:48:20编辑过]
12#
发表于 2006-11-15 04:30:00 | 只看该作者

看了大家的讨论怎么还是一头雾水!

13#
发表于 2006-11-15 17:23:00 | 只看该作者

难道本题的E选项不是排除他因吗?

这种问法及答案的给出方式应该怎么总结呢?很容易混淆啊

那位好心人可以总结一下本题的套路及相似易混选项的区别

比如E的说法不是我们通常做排除他因的典型说法吗?

为什么在这里却行不通呢?

 


[此贴子已经被作者于2006-11-15 22:19:20编辑过]
14#
发表于 2006-11-15 17:42:00 | 只看该作者

为了方便手上没有11版OG的朋友对此题的分析,现将OG的原题与分析一并给出。希望大家帮帮忙,实在是混惑很就了!

Networks of blood vessels in bats' wings serve only to disperse heat generated in flight. This heat is generated only because bats flap their wings. Thus paleontologists' recent discovery that the winged dinosaur Sandactylus had similar networks of blood vessels in the skin of its wings provides evidence for the hypothesis that Sandactylus flew by flapping its wings, not just by gliding.

 

 

89. The argument in the passage relies on which of the following assumptions?

(A)     Sandactylus would not have had networks of blood vessels in the skin of its wings if these networks were of no use to Sandactylus.

(B)     All creatures that fly by flapping their wings have networks of blood vessels in the skin of their wings.

(C)    Winged dinosaurs that flapped their wings in flight would have been able to fly more effectively than winged dinosaurs that could only glide.

(D)    If Sandactylus flew by flapping its wings, then paleontologists would certainly be able to find some evidence that it did so.

(E)     Heat generated by Sandactylus in flapping its wings in flight could not have been dispersed by anything other than the blood vessels in its wings.

Argument Construction

Situation The network of blood vessels in bats' wings is compared with a similar structure in the wings of the dinosaur Sandactylus to explain how the dinosaur flew. (The same as the previous item.)

Reasoning What assumption does this argument make? The networks of blood vessels in the wings of bats are shown to have a purpose: to disperse the heat generated by wing-flapping flight.
    
In proposing that a similar structure had a similar purpose in Sandactylus, the argument assumes that the network of blood vessels found in the dinosaur wings had a purpose.

A         Correct. This statement properly identifies the assumption that underlies the argument: there was a purpose for the network of blood vessels found in the wings of Sandactylus.

B          This statement is too broad to be assumed; the comparison between bats and Sandactylus cannot be extended to all flying creatures.

C         No conclusion is drawn about the efficiency of flight, so this point is not assumed.

D         The argument does not assume that evidence is certain to be found.

E          Since this point is not addressed in the argument, it cannotbe assumed.

The correct answer is A.

尤其是E选项,请大家关注一下!

拜托

 


[此贴子已经被作者于2006-11-15 23:30:52编辑过]
15#
发表于 2006-11-15 21:37:00 | 只看该作者

(E) 说S龙拍打翅膀所产生的热只能由血管来散发. 其前提是S龙的确靠拍打翅膀飞, 但在这里我们都还不确定S龙是否是拍打翅膀飞行.所以这个假设要想成立就还需要另外的假设.

不知道讲明白没有~!!

16#
发表于 2006-11-15 21:46:00 | 只看该作者

楼上的JJ,

文章中有提到啊 S龙可以靠拍打翅膀飞行
        

Sandactylus flew by flapping its wings, not just by gliding

 

17#
发表于 2006-11-15 22:04:00 | 只看该作者

这道题目的前提是: S龙和BAT有相似的血管系统,

结论是: 因为BAT用拍打翅膀飞, S龙也用拍打翅膀飞.

问假设.假设是什么,简单想就是支持你结论的证据,你引用的那句话就是文章的结论,用结论来支持结论是不可以的哦~~!!

18#
发表于 2006-11-15 22:24:00 | 只看该作者

 

问假设.假设是什么,简单想就是支持你结论的证据,你引用的那句话就是文章的结论,用结论来支持结论是不可以的哦~~!!

原来如此

19#
发表于 2006-11-15 22:28:00 | 只看该作者

sigrid JJ

THANKS A LOT!

 

20#
发表于 2008-1-23 00:10:00 | 只看该作者

由于Sbat有类似的network of blood vessel, 所以可推得:Networks of blood vessels in S’ wings serve only to disperse heat generated in flight. This heat is generated only because S flap their wings.

那么如果假设A成立,既然S确实有network of blood vessel,则说明 Snetwork of blood vessel 一定是用来disperse heat generated in flight,且This heat is generated only because Sflap their wings.

我觉得这两个only很重要。

不知道说明白没有。

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