199. With the government’s aid, those ______ by the earthqua

199. With the government’s aid, those ______ by the earthquake
have moved to the new settlements.
A. affect B. affecting C. affected D. were affected
答案C

选C,首先是被影响,所以去掉AB
With the government’s aid,those affected by the earthquake have moved to the new settlements
在这里affected 是过去分词短语作定语,要放在被修饰的名词后面,作后置定语,其作用相当于一个定语从句,相当于who were affected.
例如：
The student dressed in white is my daughter.
=The student who is dressed in white is my daughter.穿白色衣服的学生是我的女儿
如果选D的话,句子就有了两个动词,语法就有问题了,而affected by the earthquake是定语,去掉也不影响句子成分
这样您能明白不

就是这个解释