求教语法题的解题思路

云游

Prep 1.
Building large new hospitals in the bistate area would constitute awasteful use of resources, on the basis of avoidance of duplicatedfacilities alone.

A.      on the basis of avoidance of duplicatedfacilities alone

B.       on the grounds of avoiding duplicated facilitiesalone

C.      solely in that duplicated facilities shouldbe avoided

D.      while the duplication of facilities shouldbe avoided

E.       if only because the duplication offacilities should be avoided

这道题目，原句看完之后也不知道作者要说什么？也不知道该怎么下手解题，只凭感觉选了一个， 谁能帮忙解释解释，谢谢啦！

kiwifoodtown

E应该不是答案吧，感觉应该是B，无论从结构还是逻辑意思上。

sisichen666

选择E吧，前后句语义来讲，是个条件虚拟语气的用法，if only because

walt77

E
if you say 'on the basis of x', that is usually taken as an acknowledgment that x has actually occurred. so choice a makes it sound as if building large new hospitals successfully avoids duplicating facilities. that's not true, of course: the thrust of the sentence is that the new hospitals are duplicates, and that's the problem.

choice e correctly expresses the idea: the duplication of facilities is something to be avoided. the other message - that the new hospitals are guilty of such duplication - is implicit, but at least it isn't wrongly expressed (as in choice a).

http://www.manhattangmat.com/forums/1000-sc-184-t1875.html

walt77

请参考
http://forum.chasedream.com/GMAT_SC/thread-375782-1-1.html

walt77

选择E吧，前后句语义来讲，是个条件虚拟语气的用法，if only because

-- by 会员 sisichen666 (2013/3/19 14:54:12)

同意师傅说的~

云游

Why必须虚拟语气？ 能不能帮忙paraphrase一下作者这里到底想说什么吗？谢谢啦！