GMAT申友逻辑CR题库-The growing popularity of computer-based activities was widely expected to result in a decline in television viewing, since it had-破解版08-真题答案解析

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CR34-44题

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.

In order to evaluate the argument, it would be most useful to determine which of the following?

A. Whether the survey collected information about the amount of money respondents spent on free-time media use

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

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答案：

题干：电脑

活动普及率的不断提高被认为会在很大程度上导致看电视时间的减少，这个结论是建立在假设大家无法在有限的空闲时间里一边提高电脑活动时间一边保持看电视时间的基础上的。但是这个假设本身是明显错误的，在最近一次的关于媒体应用的邮件调查当中我们发现，绝大部分声称增加使用电脑时间的回复者都说没有改变花在看电视上的时间。题目：确定下面哪一个选项对我们评估这个逻辑是有用的。分析：逻辑评估型题目，正向逻辑和负向逻辑均需要考虑，考察该因素对题干逻辑是否有决定性影响。选项A, 绝大多数受访者是否经常看电视，对题干逻辑并无直观影响，无关属性！选项B，很少用电脑的人群花在看电视上的时间是否减少，同样和题干逻辑讨论电脑使用时间和看电视时间之间的关系没有直接联系，排除！选项C，讨论增加电脑使用时间的人群所看的电视节目是否改变，很明显的无关属性讨论，排除！选项D，调查中是否绝大部分电脑拥有者都增加了电脑使用时间，把逻辑范畴划在电脑拥有者之内，失去了题干逻辑讨论的普遍性，排除！选项E，那些报告增加电脑使用时间的受访者是否把工作使用电脑的时间包含在内。如果对该选项取正向逻辑，则题干变成strawman argument，割裂了所驳斥的论点和论据之间的逻辑关系，如果取负向逻辑，则题干逻辑成立。是我们需要确定的一个关键属性！正确