随便找一个SC让大家感受下自己语法水平咋样:
If current trends continue, by the year 2010 carbon emissions in the United States will soar to a level more than one third higher than were those in 1990, according to official projections.
(A) will soar to a level more than one-third higher than were those
(B) will soar to a level more than one-third higher than that
(C) would soar to a level more than one-third higher than it was
(D) would soar to a level more than one-third higher than those
(E) would soar to a level more than one-third higher than they were
请问在这个句子里,if引导的是什么从句?<by the year 2010>是状语还是定语?主谓宾分别是?后面的according to official projections这个介词短语是修饰哪一个成分?
这里就只需要关注Carbon emissions will soar to a level [more than one-third higher than that in 1990],因为没有划线要求判断状语修饰的对象是否正确等等,所以其他的内容扫一眼了解大意即可;第一个spilt:AB will CD would 根据条件状语从句的规则,这里if从句是现在时,主句应该用将来时,排除CDE;第二个spilt:were those表示指代对象是carbon emmisions,但其实这里应该是level 和level的比较,those指代错误,排除A,选出答案