高一 英语 选择题 请详细解答,谢谢! (17 12:23:16)

我觉得AD都可以，这个题出的有矛盾
若选A
是用may对事物的推测
若选D
是虚拟语气，对过去的推测，
would have done sth
表示我本该发生什么而没发生
在条件虚拟从句中，主句用would（should, could, might）have done表示与过去事实相反

情态动词 + have done sth

这个结构有着特殊意义：用来表示猜测(设想可能发生过什么事情)或

想象(设想可能出现过什么不同的情况)

①should (ought to) have done sth 本来该做而未做

This wall oughtn’t to have been painted blue.

②need have done sth 本来有必要做而未做

You needn’t have told her the news.

③must have done sth 对过去所做动作的肯定推测

---We went to Paris.

---That must have been nice.

④can have done sth 对过去所做动作的否定或疑问推测

I don’t think he can have heard you. Call again.

Where can John have put the matches?

⑤may (might) have done sth 过去可能发生某事，与could相比，may和might可能性较小，might 可能性更小;might 也可表示过去可能发生而未发生的事情。

Polly’s very late----she may (might) have missed heretrain.

You were stupid to try cli