英语 (17 12:23:16)The passenger＿ have missed that train.A·may B·can C·will D·wou
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英语 (17 12:23:16)The passenger＿ have missed that train.A·may B·can C·will D·wou
英语 (17 12:23:16)
The passenger＿ have missed that train.
A·may B·can C·will D·wouid
为什么正确答案是A?为什么不是选D?
英语 (17 12:23:16)The passenger＿ have missed that train.A·may B·can C·will D·wou
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 climbing there.You might have killedyouself
⑥could have done sth
●推测过去”可能“发生某事 (同can,但can不用肯定句)
She could have gone off with some friends.
●表示过去没有实现的可能性：某事可能发生,但却没有发生
You were stupid to go skiing there----you could have brokenyour leg.
●表示有能力做而未做(虚拟语气)
You could have helped me !
(You were able to help me,but you didn’t.)
就像一楼说的那样
would表示实际的情况和句子里说的相反
may have done 表示虚拟语气，乘客实际上并未错过火车
以后会学到
may表推测,would表实际发生情况和句意相反,即没有错过火车
没有上下文时,没说清楚实际情况时,应选A