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标题: 求教大全866一题 [打印本页]

作者: cooperation    时间: 2011-8-17 09:17
标题: 求教大全866一题
866.Tiny quantities of more than thirty rare gases, most of them industrial by-products, threaten to warm the Earth’s atmosphere even more rapidly than carbon dioxide during the next fifty years.
(A) to warm the Earth’s atmosphere even more rapidly than carbon dioxide during the next fifty years
(B) to warm the Earth’s atmosphere even more rapidly over the next fifty years than carbon dioxide will
(C) during the next fifty years to warm the Earth’s atmosphere even more rapidly than carbon dioxide
(D) a warming of the Earth’s atmosphere during the next fifty years even more rapid than carbon dioxide’s
(E) a warming of the Earth’s atmosphere even more rapid than carbon dioxide’s will be over the next fifty years
the key:B


答案是B,可是为什么A不对?
问题一:“than”是考察平行并列结构,但是B选项中的后边是will将来时,而前边是现在时“threaten”
问题二:“
over the next fifty years”为什么写在than前边比写在than后边好

谢谢

作者: bitieming    时间: 2011-8-17 10:00
AB的主要区别是比较成分后面的部分是否补出了在这里是情态动词的will
举一个aeon版主的例子
I eat apple faster than you。含义为我吃苹果比吃你快(歧义)
I eat apple faster than you do。含义为我吃苹果比你(吃苹果)快

在这里AB的区别同该例子一样,A中不补出will就会有rare gases warm atomsphere比warm carbon更快的歧义

关于时间状语的位置,鄙人觉得写在哪里都差不多……请指正
作者: cooperation    时间: 2011-8-17 11:09
谢谢,可是如果补情态动词的话应该是补does吧,为什么是will
作者: bitieming    时间: 2011-8-17 14:15
因为时间状语是during the next 15 years,所比较的是还未发生的事情~
作者: 午夜精灵Ying    时间: 2013-11-17 14:49
A 中的 during the next fifty years 有修饰carbon dioxide 的嫌疑。
请参加OG12-SC07 选项D
As its sales of computer products have surpassed those of measuring instruments, the company has become increasingly willing to compete for the mass market sales they would in the past have conceded to rivals.
(A) they would in the past have conceded to rivals
(B) they would have conceded previously to their rivals
(C) that in the past would have been conceded previously to rivals
(D) it previously would have conceded to rivals in the past
(E) it would in the past have conceded to rivals




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