【请教大牛，想了几个小时都没想明白！！！GWD3-Q32】

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Newspaper editorial:
In an attempt to reduce the crime rate, the governor is getting tough on criminals and making prison conditions harsher.  art 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。我的疑问是：为什么A不对？
我的解析过程是：
原文：因为上过课的囚犯比没上过课的犯罪率低，所以不让囚犯上课不能减少犯罪率。
原文潜台词：唯有上课才能导致犯罪率低
假设：没有其他因素导致犯罪率低

C说：并不是“选择上课的人本身不容易犯罪”才导致犯罪率低的。没错
但A也说：并不是“囚犯怕不能上课”才导致犯罪率低的。感觉也没错！！！

我想了好久好久好久好久都没想明白，实在郁闷啊~~~ 请问有哪位大牛知道A为什么错吗？

dosboy

原观点： 政府通过把监狱搞得很 糟 ，  来降低犯罪 这是有一个，暗逻辑 （ 监狱乱 -> 外面的人不犯罪了-> 降低犯罪率） => A. 如果要成立应该是， 不上课不会阻止到外面的人（而不是选项中的内部人惯犯）
新观点：上课的人，犯罪少 => 这里包括2条 暗逻辑（1.监狱内： 上课 -> 提高上课的人素质 -> 贯犯不犯 ） （2.监狱外：上课 =>  也增加不了外面的人犯罪 即： 新犯不增加）
第1条暗逻辑就是C选项， 第2条暗逻辑，就是A选项（只不过出题了故意改成错的），但可以看出题人的意思。
新观点实际上有2个“假设” ， 1个内 ， 1个外， 出题人的把这2个假设都做成了选项，只是不过A选项给改写了，当然不能选。

nicole_huangyx

大家好像也没有注意到A项中有a crime that he or she might otherwise have committed.
A和C的另一项区别，A说上课之后就不会去犯之前犯过的罪了，C说减少犯罪。而A的话，可能会out of scope.
（我是这样理解的，囧）

April_____

啊啊啊，thx，做到这个题困扰了

cmmht2

popup 发表于 2012-2-26 11:30
同样削弱了原文 is different from refute a conclusion.-- by 会员 sdcar2010 (2012/2/26 11:21:41)

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你的总结特别好！谢谢拉！

gogmat2013

參考大家的說法 我的理解是:
A: 不能拿課這個措施不太可能會阻止犯罪的人去犯罪-不能解釋成拿課這個措施一定會阻止犯罪的人去犯罪 (否決掉)
C：選擇上課的囚犯本身不比其他的囚犯不會去犯罪-在拿課之前大家都是一樣的壞 拿完課後有人變好了 所以證明拿課是唯一可以使犯罪率變低的主因 符合了題目的結論: 讓囚犯拿課能達成reduce crime rate的旨意

614000

说实话，假设题这个方法还是不低，不过其他题目学到的方法就不怎么适用了

tsh0615

A is relevent to the argument. You must focus on the word "unlikely" . A says no asscess to college course is unlikely(can not) stop crime(means it does not change anything), while argument says asscess to college course can lower crime which means the assumption should be 1. course would lead to lower crime or 2. no course would lead to higher crime.

anser C consist with assumption 1; anser A is relevent.

子弹青春

对的，我刚看这道题也觉得be not able to暗示了“害怕”，我也凌乱了。其实这就是这道题的trick，如果换成can not应该会好很多。

seachina

这题的 C选项有两个地方要注意：chose 和 already