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标题: 关于CR题目中小例子的重要性 [打印本页]

作者: justabeginning 时间: 2011-11-5 22:38
标题: 关于CR题目中小例子的重要性

111. The difficulty with the proposed high-speed train line is that a used plane can be bought for one-third the price of the train line, and the plane, which is just as fast, can fly anywhere. The train would be a fixed linear system, and we live in a world that is spreading out in all directions and in which consumers choose the free-wheel systems (cars, buses, aircraft), which do not have fixed routes. Thus a sufficient market for the train will not exist.

Situation A free-wheel system of transportation, the airplane, is as fast as a fixed linear system, the high-speed train. Because people prefer free-wheel systems that do not have fixed routes, the high-speed train will never find a sufficient market.

Which of the following, if true, most severely weakens the argument presented above?

(C) Planes are not a free-wheel system because they can fly only between airports, which are less convenient for consumers than the high-speed train’s stations would be.
（正确答案）

(B) Cars and buses are not nearly as fast as the high-speed train will be.

The passage compares the speed and system models of airplanes and high-speed trains. The argument does not incorporate buses and cars, which are included only to give examples of freewheel systems, and so this statement is irrelevant.

这一题，我的疑问是关于CR题目中小例子的重要性，就是题目中给出的可有可无的小例子能否被列为核心元素（如此题中的cars & buswa) B错很明显，因为这个选项偷龙转凤，把比较方式转换了。然而，假设我们不知道cara & buses和高铁哪个快，并把car & bus加入到速度的比较中。即把下划线的部分改为and the plane, cars and buses, which are just as fast, can go anywhere.

那么这样的话B是不是就可以当成正确选项呢？我这样问是因为我总觉得OG的意思是说这样的小例子不重要：‘which are included only to give examples’......

我想听听大家的意见

作者: cdwayne 时间: 2011-11-5 23:57
1. 視情況，例子可以用來輔助說明，也可以當evidence支持論證。
2. 題文重點不在快慢，而是fixed linear system。

作者: justabeginning 时间: 2011-11-6 00:26

1. 視情況，例子可以用來輔助說明，也可以當evidence支持論證。
2. 題文重點不在快慢，而是fixed linear system。

-- by 会员 cdwayne (2011/11/5 23:57:14)

我觉得题目重点不只fixed linear system，还有price, speed,只要攻击任何一点都会起到weaken作用

所以我才觉得如果像我说的那样改的话B也可能会是正确答案

只是不确定在这种情况下在能不能用括号里面的例子（cars&buses)进行‘攻击’，毕竟OG说‘which are included only to give examples’

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