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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.

正确答案: B

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讨论Prep SC2 58题

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楼主
发表于 2008-4-15 03:52:00 | 只看该作者

讨论Prep SC2 58题

58.   (27510-!-item-!-188;#058&003569)

 

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

答案是B

我的问题

1. 如果有条件状语从句,主句要不要用虚拟时态呢?

2. 如果上题有would soar to a level more than one-third higher than that 和will soar to a level more than one-third higher than that 选哪个答案呢?

沙发
发表于 2008-4-15 19:41:00 | 只看该作者
if引导的条件状语从句用虚拟语气时,主句确实必须用相应的虚拟语气。但是这句中的if从句并没有用虚拟语气阿
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