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问题: 一道情态动词题

It’s a good thing that they got her to hospital in time. Her condition was so critical that she ______.
A. might have died B. could die
C. could have died D. should die

解答:

It’s a good thing that they got her to hospital in time. Her condition was so critical that she __C____.
A. might have died B. could die
C. could have died D. should die
这道题需要从句意来区分几个有交叉用法的情态动词。好消息是他们及时送她去了医院(过去的动作已经完成),她当时的状况不容乐观,以至于可能会死亡。could have done表示过去的一种可能性,理解为“可能那时就会死亡”比较好。前面用was,后面用couldshould就不太妥,因为die是个短暂的动词,一般死亡要强调结果而不是过程。过去die了,现在就一定已经dead了。不当的。选C最佳。

参考文献:http://blog.sina.com.cn/calendula28