PERP模考题一题

evelyn205205

Scientists have identified an asteroid, 2000 BF19, that is about half a mile wide and, if it strikes Earth, it can do tremendous damage to part of the planet but probably not cause planetwide destruction.

A. and, if it strikes Earth, it can do tremendous damage to part of the planet but

B. and, if it would strike Earth, part of the planet could experience a tremendous amount of damage but it would

C. and that, if it were to strike Earth, could do tremendous damage to part of the planet but would

D. and that, if Earth is struck by it, can do part of the planet tremendous damage, but it would

E. and that, if it strikes Earth, it could experience a tremendous amount of damage but

ANSWER: C
GMAT中，不是说要avoid using "be to" structure嘛~
为何C还是正确的呢？

aeoluseros

虚拟语气里面的were to一直都可以用，来表示对将来的虚拟。

其他地方确实没想到GMAT里用过be to来表示将来时。

据XDF说是不可以的，因为be to表示主观将来，虽然我一直没想明白“主观”在哪里，所以我还是觉得be to应该是能用的，只是没出现…

evelyn205205

ACCORDING TO XDF，BOTH THE EXPRESSION OF "be to do" AND "going to do" SHOULD NOT BE USED.

evelyn205205

BUT IN THIS PARTICULAR QUESTION CONCERNED, CHOICES OTHER THAN C ARE WORSE THAN C. SO I GUESS WHY C SHOULD BE CHOSEN, ALTHOUGH IT IS NOT A PERFECT ANSWER.

barbiebear

同意1楼， XDF意思是be to do 表主观将来的时候，不可用，原因GMAT属于商业英语，推客观表达法。
be to do  表主观将来的时候与  be going to 的意思类似，将要或者计划，意愿做某事。
这里是虚拟语气，完全不同的用法。
供参考~~~