关于prep2008 116 用helr的方法不太理解啊…怎么判断果因和统计枚举呢？

三塘木 · 发表于 2014-10-19 01:03:04

The growing popularity of computer-based activities was widely expected to result in a decline in television viewing, since it had been assumed that people lack sufficient free time to maintain current television-viewing levels while spending increasing amounts of free time on the computer. That assumption, however, is evidently false: in a recent mail survey concerning media use, a very large majority of respondents who report increasing time spent per week using computers report no change in time spent watching television.

Which of the following would it be most useful to determine in order to evaluate the argument?

A. Whether a large majority of the survey respondents reported watching television regularly
B. Whether the amount of time spent watching television is declining among people who report that they rarely or never use computers
C. Whether the type of television programs a person watches tends to change as the amount of time spent per week using computers increases
D. Whether a large majority of the computer owners in the survey reported spending increasing amounts of time per week using computers
E. Whether the survey respondents’ reports of time spent using computers included time spent using computers at work

我做这题的想法是，先找结论，结论是That assumption, however, is evidently false。这里具体就是说people do not lack sufficient free time to maintain current television-viewing levels while spending increasing amounts of free time on the computer。支持的前提是in a recent mail survey concerning media use, a very large majority of respondents who report increasing time spent per week using computers report no change in time spent watching television。

那么这里的推理逻辑就是：因为在survey上大部分的增加电脑使用时间的回复者没有减少看电视时间，所以人们在增加使用电脑的时间时不会减少看电视的时间。对我来讲感觉这个逻辑更像是以小推大，因为survey上的人都是这样，所以大范围上人们都是这样。那么就是统计枚举类的问题，那么就应该找例子的特殊性。看下来E是正确答案。

不过helr给出来的答案是说这个是果因推理……我就有点不懂了，哪里看出来是果因推理呢？我之前也发了一个类似的帖子，同样的也是这类问题……求解答…谢谢拉

三塘木 · 发表于 2014-10-19 01:06:06

不好意思我刚刚又看了一遍题好像明白了………结论虽然隐含了但是并不是在讲所有人都在增加使用电脑的时间时不会减少看电视的时间，而是提供了一个解释survey现象的原因：因为人们不缺少sufficient free time………所以是果因……

关于prep2008 116 用helr的方法不太理解啊…怎么判断果因和统计枚举呢？

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