情态动词加have done

2025-03-15 09:54:10
推荐回答(2个)
回答1:

这份答案也是我从网上查的,希望可以帮助到你。
我觉得把握“情态动词+have done”主要要先想清楚情态动词本身的含义,have done作为完成时态的标志,与情态动词连用主要是对过去事情的推测,或者以虚拟语气表示“过去本可以......"
加油吧!

情态动词+have+done是历年高考的重点和难点之一,现将其用法总结归纳如下:
一、 “must+have+done”表示对过去事情的肯定推测,译成“一定做过某事”,该结构只用于肯定句。
1.It must have rained last night, for the ground is wet.
昨晚一定下雨了,因为地面还是湿的。
2. You must have been mad to speak to theservant.
你和仆人说话,一定是发疯了。
二、“can't+have+done”表示对过去事情的否定推测,译成“不可能做过某事”。 1. Mr. Smith can't havegone to Beijing, for I saw him in the library just now.
史密斯先生不可能去北京了,我刚才还在图书馆见过他。
2. Mary can't have stolen your money. Shehas gone home.
玛丽不可能偷你的钱,她回家去了。
三、“can+have+done”表示对过去行为的怀疑,用于疑问句,译成“可能做过……吗?”。
1. There is no light in the room. Can theyhave gone out?
屋里没有灯,他们可能出去了吗?
2. There is nowhere to find them. Where canthey have gone?
到处找不到他们,他们可能到什么地方去呢?
四、“could+have+done”是虚拟语气,表示对过去事情的假设,意思是本来能够做某事而没有做。
He could have passed the exam, but he wastoo careless.
本来他能够通过考试,但是他太粗心。
五、“may+have+done”表示对发生过的事情的推测,意思是“可能已经”或“也许已经”,用于肯定句中。
—What has happened to George?
—I don't know. He may have got lost.
—乔治发生了什么事?
——我不知道,他可能迷路了。
六、“might+have+done”表示对过去事情的推测,might与may意思相同,但可能性更小。多用于虚拟语气结构中。
1. He might have given you more help, eventhough he was busy. (MET90)
他或许会多给你一些帮助,即使他很忙。
2. She might have achieved greaterprogress, if you had given her more chances.
如果你多给她点机会,她可能已经取得更大的成绩。
七、“would+have+done”虚拟语气,表示对过去事情的假设,意思是“本来会做”。
1. I would have told you all about theboy's story, but you didn't ask me.
我本来会告诉你这个小男孩的故事,但是你没有问我。
2. Without your help, I wouldn't haveachieved so much.
没有你的帮助,我是不会取得如此大的成绩。
八、“should+have+done”意思是“本来应该做某事,而实际没做。”“shouldn't+have+done”表示本来不应该做某事,而实际做了。含有指责对方或自责的含意。
1. Tom, you are too lazy. The work shouldhave been finished yesterday.
汤姆,你太懒惰了,这项工作本来应该昨天就做完的。
2. Look, Tom is crying. I shouldn't havebeen so harsh on him.
看,汤姆哭了,我本来不应该对他如此严厉。
九、“ought to+have+done”表示过去应该做而实际并没有做,译成“理应做……”,往往表示遗憾。与“should+have+done”用法基本一样。
Iought to have gone home last Sunday.
我理应上星期日回家。
You ought not to have given him more help.
你不应该帮助他那么多。
十、“need+have+done”表示本来需要做某事而没有做。“needn't+have+done”则表示“本来不需要做某事而做了”。
I needn't have bought so much wine—only fivepeople came.
我本来没有必要买这么多酒,只来了五个人。
He need have hurried to the station. Inthat case, be wouldn't have missed the train.
他本来需要快点去车站,那样的话,他就不会误了火车。

回答2:

2种用法:情态动词+have+过去分词

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