请教关于语法笔记2007的一道题

Alex2009221733 · 发表于 2012-1-29 14:49:27

为神马这句话不用虚拟语气？一直搞不懂条件状语从句什么时候需要用虚拟，什么时候不用，请各位牛人赐教
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
A.   复数those不能指代单数level，因此只能强制指代前句的复数主语emissions，那么，句子变成将
level与emissions相比较，比较对象不对等
B.   正确。
C.   主语应该使用will，而不是would
D.   主语应该使用will，而不是would；复数those没有指代对象
E.   主语应该使用will，而不是would；复数they没有指代对象

本贴相关题目 GMATPrep-2007E2-SC-58 | TN-22-SC-41 (PLCO)

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