神马作文网英语 (17 12:23:16)
来源：学生作业帮 编辑：神马作文网作业帮 分类：英语作业 时间：2024/11/17 06:59:39
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?
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?
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.)
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.)