选D.
楼主请看句子主干:None of the attempts...explains why most people (后面是修饰这个people的内容)
do not commit crimes and, conversely, why so many of those (not so exposed 其实完整的应该是 exposed to the alleged causes)
do (这个do 指 do commit crimes).
这个题就是考平行对称。
-- by 会员 AnnAys (2010/4/10 23:35:58)
从前半个分句可以看出to the alleged causes的成分:
“most of the people exposed to the alleged causes ”= most of the people who are exposed to the alleged causes
定于从句中,who是主语,而exposed to the alleged causes是定于从句中的主语补足语。下半个句子以those代替了people,也就是下半个句子的主语已经出现了,于是原句就用so代替了这个主语补足语。
而commit在上半句以why引导的宾语从句中是谓语的作用,在下半句中仍然是以why引导的宾语从句中做谓语。只是前面出现过了,所以原句就用do来代替了。
-- by 会员 AnnAys (2010/4/11 0:04:14)