紧急求助：一道BOLDFACE题的思路（GWD-9-Q30）

kingapple25

答案选C? 不对吧，是B吧。。。？

lenovoo

thx

MissWang_xx929

答案是B

胡茗译

先说答案，肯定是B。
Criminologist: Some legislators advocate mandating a sentence of life in prison for anyone who, having twice served sentences for serious crimes, is subsequently convicted of a third serious crime. These legislators argue that such a policy would reduce crime dramatically, since it would take people with a proven tendency to commit crimes off the streets permanently. What this reasoning overlooks, however, is that people old enough to have served two prison sentences for serious crimes rarely commit more than one subsequent crime. Filling our prisons with such individuals would have exactly the opposite of the desired effect, since it would limit our ability to incarcerate younger criminals, who commit a far greater proportion of serious crimes.
1st黑体是由“some legislators”提出的，那么我们需要找到文章对于“some legislators”的态度：What this reasoning overlooks, however, 强转折。据此可以判断argument seek to refute 之前的言论。
2nd黑体在however后面的部分里扮演什么角色呢？逐句分析：
is that people old enough to have served two prison sentences for serious crimes rarely commit more than one subsequent crime. ：很明显是论据（premise）
since it would limit our ability to incarcerate younger criminals, who commit a far greater proportion of serious crimes.：since引导的很明显也是论据
那么多明显中间的黑体部分就是文章seek to establish的conclusion啊。

帖子里两个强行解释C选项的同学不要强行按照答案理自己的思路哦，做CR千万不能在脑海里有预先假设。