简单总结一下情态动词+have done的用法1.虚拟语气(本应……而没有……)2.表推测将各个“情态动词+have done"结构列入以上两类
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![简单总结一下情态动词+have done的用法1.虚拟语气(本应……而没有……)2.表推测将各个“情态动词+have done](/uploads/image/z/9192870-54-0.jpg?t=%E7%AE%80%E5%8D%95%E6%80%BB%E7%BB%93%E4%B8%80%E4%B8%8B%E6%83%85%E6%80%81%E5%8A%A8%E8%AF%8D%2Bhave+done%E7%9A%84%E7%94%A8%E6%B3%951.%E8%99%9A%E6%8B%9F%E8%AF%AD%E6%B0%94%EF%BC%88%E6%9C%AC%E5%BA%94%E2%80%A6%E2%80%A6%E8%80%8C%E6%B2%A1%E6%9C%89%E2%80%A6%E2%80%A6%EF%BC%892.%E8%A1%A8%E6%8E%A8%E6%B5%8B%E5%B0%86%E5%90%84%E4%B8%AA%E2%80%9C%E6%83%85%E6%80%81%E5%8A%A8%E8%AF%8D%2Bhave+done%22%E7%BB%93%E6%9E%84%E5%88%97%E5%85%A5%E4%BB%A5%E4%B8%8A%E4%B8%A4%E7%B1%BB)
简单总结一下情态动词+have done的用法1.虚拟语气(本应……而没有……)2.表推测将各个“情态动词+have done"结构列入以上两类
简单总结一下情态动词+have done的用法
1.虚拟语气(本应……而没有……)
2.表推测
将各个“情态动词+have done"结构列入以上两类
简单总结一下情态动词+have done的用法1.虚拟语气(本应……而没有……)2.表推测将各个“情态动词+have done"结构列入以上两类
一、“must + have + 过去分词”表示对过去发生的事情或状态进行推测,语气比较坚定,通常只用于肯定句.如:
It must have rained last night,for the ground is wet.
You must have been mad to speak to the servant.
二、“can / could + have + 过去分词”表示对过去某种情况的怀疑或不确定.can和could一般用于否定句和疑问句,could的语气较can弱.如:
I didn't see her at the meeting this morning; she can't / couldn't have spoken at the meeting.
He can't have finished the work so soon.
三、“may / might + have + 过去分词”表示对已发生的动作或存在的状态进行不肯定的推测,might的语气比may弱一点.这种结构主要用于肯定句和否定句,疑问句改用can或could.如:
They may not have known it beforehand.
You might have read about it in the papers.
四、“need + have + 过去分词”表示过去做了不必做或不需要做的事情,或过去做某事纯属多余.如:
Need they have done it last week?
I needn't have bought so much wine—only five people came.
五、“should / ought to + have + 过去分词”表示过去本该做某事但没做,其否定式表示过去不该做某事但做了,这种句式含有不满或责备之意,ought to的语气比should强一些.如:
You ought to / should have studied harder.你本应该更努力学习的.(但没有)
He oughtn't to / shouldn't have done that.他本来就不该做那件事.(可是做了)
六、“would + have + 过去分词”表示对过去的某种情况进行猜测,或本来要做某事却因某种原因未做成,通常用来说明某一情况,但不像用should或ought to那样含有责备之意.如:
I guess the poet would have been about twenty when she wrote her first poem.
Another worker wouldn't have acted like that.
以上是我教学经验总结的最全的“情态动词+have done”了,希望能帮助你并获得你的采纳!
最常见的
should (have) done 本该做却没做
should not (have) done 本不该做却做了
may\might (have) done 也许做过
must (have) done 准是做过
needn't (have) done 本没有必要做
have可省
1 he would have died if you didn't call him.
2 he should have arrived there.