[求助]gwd-3-32

oldersea

Q32:

Newspaper editorial:

In an attempt to reduce the crime rate, the governor is getting tough on criminals and making prison conditions harsher. Part of this effort has been to deny inmates the access they formerly had to college-level courses. However, this action is clearly counter to the governor’s ultimate goal, since after being released form prison, inmates who had taken such courses committed far fewer crimes overall than other inmates.

Which of the following is an assumption on which the argument depends?

A. Not being able to take college-level courses while in prison is unlikely to deter anyone from a crime that he or she might otherwise have committed.

B. Former inmates are no more likely to commit crimes than are members of the general population.

C. The group of inmates who chose to take college-level courses were not already less likely than other inmates to commit crimes after being released.

D. Taking high school level courses in prison has less effect on an inmate’s subsequent behavior than taking college-level courses does.

E. The governor’s ultimate goal actually is to gain popularity by convincing people that something effective is being done about crime.

答案是c，但是我觉得c取非后加强原文。

请大侠解释解释

alanguo

个人理解：not less likely than...after being released是说上过课的罪犯在被释放后没有更少地犯罪。说明上课没起好作用。。。搞反了。

xirui2000

原文说现在不准监狱里关的家伙去进修大学课程了，作者反对，说

EVIDENCE:since after being released form prison, inmates who had taken such courses committed far fewer crimes overall than other inmates.

推出结论，大学课程是有帮助的。

要ASSUME,

C说 The group of inmates who chose to take college-level courses were not already less likely than other inmates to commit crimes after being released. 就是说这帮修大学课程的家伙进来的时候和那帮不要修大学课程的人一样危险，一样的犯罪可能性和倾向, 这样的话,原文的结论修大学课程有用就成立了,因为这帮原来都一样混的家伙修了大学课程后，斯文了很多，比没修课程的人文明了不少。

C把NOT按掉，The group of inmates who chose to take college-level courses were (not) already less likely than other inmates to commit crimes after being released.

这帮修课的人进监狱的时候就已经很斯文了，那不就是说修课没有用么，削弱了原文.

xirui2000

请注意C、The group of inmates who chose to take college-level courses were not already less likely than other inmates to commit crimes after being released.

并非说“这帮修课的人进监狱的时候就已经很斯文了”，而是说“这帮修课的人并不比不修课的人在释放后更少犯罪”。

应该选A 本文前提：参加课程整体犯罪率比不参加的罪犯要少得多。 结论：政府不让罪犯参加课程不能减少犯罪率。 取非后使原推理过程必不成立者是假设（支持）。 A取非：不参加课程能够阻止任何人犯罪。（那么政府不让罪犯参加课程必然可以减少犯罪率）取非后，使原推理过程绝对不成立。所以A是假设。支持结论。 C、参加课程的人并不比不参加的人犯罪率低。（注意：not less两个否定。）违反前提（而非削弱前提），怎么可能是支持的假设选项呢？ 且C取非后：参加课程的人比不参加课程的人犯罪率低。（那么政府不让罪犯参加课程不能减少犯罪率。）取非后，使原推理过程绝对成立，必不为支持（假设）选项。