通过高考题精讲 could have done的用法
通过高考题精讲
could have done的用法
could （not）have done 常见用法：
1. 对过去行为的推测，表可能。
2. 过去能做而未做，表惋惜，或婉转的批评。
3. 虚拟语气中，表过去的虚拟。
I can’t find my purse. I___________ it in the supermarket yesterday, but I’m not su re.
A. should leave
B. must have left
C. might leave
D. could have left
解析：本题选择D.
could have done 对过去行为的推测，表可能。
我找不到皮包，根据下文yesterday表过去的推测，加上I’m not su re，所以排除B。
(2013浙江)3. I ______ myself more ---- it was a perfect day.
A shouldn’t have enjoyed
B needn’t have enjoyed
C wouldn’t have enjoyed
D couldn’t have enjoyed
解析：本题选择D.
could not have done 对过去行为的推测，表可能。
Could not…….more……固定句型，非常，再….也不为过…根据下文was和perfect，我过的非常愉快。
——I stayed at a hotel while in New York .
——Oh, did you ? You _____ with Barbara.
A.could have stayed
B.could stay
C.would stay
D.must have stayed
could have done 过去能做而未做，表惋惜，或婉转的批评。
根据上文，stayed过去住酒店浪费钱，本可以和朋友住一起。
(2009江苏)28. He did not regret saying what he did but felt that he __________it differently.
A. could express
B. would express
C. could have expressed
D. must have expressed
解析：本题选择C.
could have done 过去能做而未做，表惋惜，或婉转的批评。
根据上文did和felt表过去，和did not regret saying，所以排除D。
本可以用不同的方式来表达，效果可能不一样，不是十分的肯定。
(2008山东) 24. Thank you for all your hard work last week. I don’t think we ____ it without you.
A. can manage
B. could have managed
C. could manage
D. can have managed
could have done虚拟语气中，表过去的虚拟。
有点类似虚拟语气，过去的情况，所以用could have done。
couldhavedone的意思及用法
couldhavedone的意思及用法couldhavedone是英语中一种情态动词形式，意思是“本来可以做的，可以做的”。
这种情态动词形式可以用于表达某种愿望或想象可能性，但实际上没有发生的事情。
一、couldhavedone的使用实例1、用于表达某种可能性你刚才可以做的，但还没有做，那就是you could have done it。
2、用于表达愿望你刚才想做的，但还没有做，那就是you could have done it。
3、表达事实可能性，但实际却没有发生但事实上，你还没有做，那就是you could have done it, but you didn't.二、用法提示1、couldhavedone的基本用法couldhavedone的基本用法是“could have + 动词的过去分词”，即could have done，例如：He could have cooked dinner last night.他昨晚本可以做晚餐。
2、时态要注意其实，couldhavedone可用于所有时态，只要需要用来表达一种可能性或愿望即可。
(1) 一般过去时We could have gone to the beach yesterday.昨天我们本来可以去海滩的。
(2) 现在完成时She could have done her homework already.她本来可以已经做完作业了。
(3) 过去完成时You could have sent the report already.你本应该已经把报告发送出去了。
三、该情态动词形式的注意事项1、不能和实际的情况矛盾使用时要特别注意，实际发生的事情与couldhavedone表达的内容不要相矛盾。
2、与willhaveto不能混淆另外，要注意不能把willhaveto混淆使用，也就是不能把willhaveto当做couldhavedone来使用，因为willhaveto表示必须做某事或必须完成某项任务，而couldhavedone则只表达一种可能性或愿望，而不是强调事实情况。
could have done的用法
could have done的用法
'couldhavedone'是一种虚拟语气，用来表示过去可能发生但实际上没有发生的情况。
它通常与 'if' 句子一起使用，表示 '如果当时做了某事情，那么结果可能会是什么'。
例如：
- If I had studied harder, I could have passed the exam.（如果我当时努力学习，我可能会通过考试。
）
- If they had arrived earlier, they could have caught the train.（如果他们早点到，他们可能会赶上火车。
）
- If we had known about the traffic, we could have left earlier.（如果我们知道交通状况，我们可能会早点出发。
）
'could have done' 还可以用来表示对过去事情的后悔或反悔。
例如：
- I could have taken the job, but I decided not to.（我本来可以接受那份工作的，但我决定不要了。
）
- They could have saved more money if they had been more careful with their spending.（如果他们在花钱方面更加小心，他们可能会存更多的钱。
）
- I wish I could have spent more time with my family last weekend.（我希望上周末我能多陪陪家人。
- 1 -。
情态动词+have done的用法+练习
1. It _______________ must have rained (rain) last night, for the ground is wet this morning. 昨天晚上一定是下雨了，因为今晨地面是潮湿的。 have been 2. She didn't attend the lesson then. Shemust ____________(be) ill. 3. Yesterday Jane walked away for discussion, otherwise, she might _____________ have said (say) something she would regret later. 4. It's 8 o'clcok. I am very hungry. You _____________ (cook) should have cooked the dinner. 5. If they had finished the work on time, they ______________________ would have been praised (praise) by the manager. 6. If you had worked hard, you could _______________ have passed the exam. needn't have spent 7. We spent a lot of money that we _____________ (not spend). 8. We went by sea but I'd rather ______________ (go) by air
情态动词+动词不定式完成结构的用法 5. must have done... 一定已经做过了 否定 couldn't/can't have done... 不可能做了 5 needn't have done “本来不必做”(但是已经做过了) 6 would rather have done
情态动词+have done的构成及用法含译文
情态动词+have done的构成及用法含译文1.情态动词+have done的构成may/might have done可能已经发生了某事could have done本能够做某事can't/couldn’t have done不可能已经发生了某事must have done一定已经发生了某事would have done本来会做某事should/ought to have done本应该做某事但没有做shouldn't/oughtn't to have done本不应该做某事但做了need have done本需要做某事但没有做needn't have done 本不需要做某事但做了2.情态动词+have done的用法情态动词+have done的用法主要包括两个方面：一.表示对过去所发生事情的推测或假设；二.表示对过去所发生事情的责备或遗憾。
①may/might have done可能已经发生了某事。
对过去所发生动作的不太肯定的推测。
用于肯定句中，may和might意思相同，但might 可能性更小，多用于虚拟语气中。
By expressing love for his children in such a special way, Tolkien may indeed have been the real Father Christmas. 通过这种特别的方式表达对孩子们的爱，托尔金可能真的是真正的圣诞老人。
（新外研版必修二）You can check his office. He might have been there already. 你可以去他的办公室看看。
他可能已经到那儿了。
If he had been given more encouragement, he might have made greater progress. 如果给他更多的鼓励，他可能会取得更大的进步。
情态动词完成式的用法
情态动词完成式的用法在英语语法中，情态动词完成式是一个重要且常被运用的语法点。
它能够帮助我们更准确、丰富地表达各种意思和情感。
接下来，让我们一起深入了解一下情态动词完成式的用法。
首先，我们来看看“could have done”这个结构。
它有两种主要的含义。
一种是表示“过去本来能够做某事但实际上没有做”，比如：“I could have passed the exam if I had studied harder”（如果我学习更努力的话，我本来是能够通过考试的。
）这里就表达了一种遗憾或者自责的情绪。
另一种含义是“过去可能做了某事”，例如：“He could have goneto Beijing last week”（他上周可能去了北京。
）“should have done”也是常见的一种情态动词完成式。
它通常用来表达“过去应该做某事但实际上没有做”，有一种批评、责备或者后悔的意味。
比如说：“You should have told me the truth”（你本应该告诉我真相的。
）当我们想要表达“过去不应该做某事但却做了”的时候，就会用到“shouldn't have done”，比如：“I shouldn't have eaten so much junk food”（我本不应该吃那么多垃圾食品。
）接着是“would have done”。
它常用来表示对过去事情的虚拟假设，意思是“如果……的话，就会……”。
例如：“If it had rained yesterday,we would have stayed at home”（如果昨天下雨了，我们就会待在家里。
）“might have done”有“过去可能做了某事”的意思，语气比“could have done”更不确定。
比如：“She might have forgotten about the meeting”（她可能忘记了这个会议。
英语语法：“情态动词+完成式”的用法
【导语】前⽂中，我们了解到，might, may, could, can, will, would, should, ought to, must等9个情态动词，可以表⽰推测性意义，其后可以接动词的⼀般形式、进⾏体形式和完成体形式。
其实，“情态动词+完成体”除了具有推测性含义，还可以表⽰虚拟意义。
以下内容由整理发布，欢迎阅读参考！更多相关讯息请关注！1）must + have done：⽤于肯定句，表⽰推测，意为“⼀定（已经）……”。
You must have finished the work. 你⼀定已经完成⼯作了。
2）can + have done：⽤于否定句或疑问句，表⽰推测，意为“可能（已经）……”。
He can’t have left so soon. 他不可能⾛得这么早。
3）could + have done：可⽤于肯定句、否定句或疑问句，表⽰推测、责备或遗憾等，意为“可能……”、“本来可以……”、“本来应该……”等。
You could have finished it, but you failed. 你本可以完成，但你失败了。
4）should [ought to] + have done：可⽤于肯定句、否定句或疑问句，表⽰责备或遗憾等，意为“本来应该……”。
You should have helped me, but you just sat and watched there.你本应该帮我的，但你只是在那坐着看。
5）need + have done：⽤于否定句或疑问句，⽤于否定时意为“本来不必”，⽤于疑问句时意为“有必要……吗”。
You needn’t have helped me because I could make it.你本没必要帮我的，我⾃⼰可以做到。
6）may + have done：⽤于肯定句或否定句，表⽰推测，意为“可能（已经）……”。
She may have seen this film. 她可能已经看过这部*了。
高考“情态动词+have_done”考点解析
2、根据句意“我妹妹昨天在大剧院见过他”，所以，一定是对过去已经发生的否定的判断，答案选A。
3、本句表达的是对过去发生过的情况的疑问，所以应该用could have done，答案选C。
It must have rained last night, for the ground is wet this morning.
昨天晚上一定是下雨了，因为今晨地面是潮湿的。
She didn’t attend the lesson yesterday. She must have been ill.
A. should B. must C. could D. would
4. I didn’t see her in the meeting-room this morning. She ____ at the meeting. (1995 上海)
A. mustn’t have spoken B. shouldn’t have spoken
A. might B. should C. can D. will
2. The window was broken. Tom ____ have done that, for he was a little naughty.
A. could B. might C. should D. ought to
--- It ___ a comfortable journey. （MET95）
A. can’t be B. shouldn’t be C. mustn’t have been D. couldn’t have been
2. My sister met him at the Grand Theatre yesterday, so he ____ your lecture. (2002 上海)
could have done 表示“未曾实现的……”
could have done 表示“未曾实现的……”一、could have done 表示未曾实现的选择could have done 表示过去本来可以有机会选择做某事，但实际上没有那样做，通常译为“本来可以”。
如：You needn’t have typed it twice. You could have used a carbon. 你没必要打两遍的，你当时本可以用复写纸打。
You needn’t have walked up; you could have taken the lift. 你没必要走着上去，你本来可以乘电梯的。
I could have lent you the money. Why didn’t you ask me?我本来可以借这笔钱给你的。
你为什么不向我提出?You needn’t have cooked it. We could have eaten it raw.你其实可以不煮熟(它)，我们 (本来)可以生吃。
二、could have done 表示未曾实现的想法could have done 表示过去本来有做某事的打算或意图，但实际上没有实现，通常译为“本来可以”。
如：I could have lent you the money. Why didn’t you ask me?我本来可以借这笔钱给你的。
你为什么不向我提出？I could have given you some hints, but I suppose you thought yourself too grand. 我本可以给你点提示的，但是我认为你太自负了。
三、could have done 表示未实现的可能性could have done 表示过去本来可能发生情况，而实际上没有发生，通常译为“本来可以”“本来可能”等。
如：She could have been seriously injured. 她本来可能伤得很重的。
从高考题看有关情态动词+have+done的教学
从高考题看有关“情态动词+have done”的教学佛山市南海区平洲高级中学肖亮生在2004年英语高考全国卷的第三、第四套题中，分别有第27题:Mr. White______ at 8:30 for the meeting, but he didn’t show up.A. should have arrivedB. should arriveC. should have had arrivedD. should be arriving本题答案为A。
全句句意为“Mr. White本该在8：30到会的，但他没有露面。
”全句谈的是过去的事，故应使用should have done 结构，表示“本来应该做而实际上没有做”第22题:----Tom graduated from college at a very young age.-----Oh, he ______ have been a very smart boy then.A. couldB. shouldC. mightD. must本题答案为D。
考查“must + have done”表示对过去的肯定的推测。
在2005年的英语高考中，相当多的省份也出现了此类题型，现摘选出来与大家分析。
(北京卷) 26. He ______have completed his work; otherwise, he wouldn't be enjoying himself by the seaside.A. shouldB. mustC. wouldn'tD. can't句中语气极为肯定。
故选B。
（天津卷）14. I _____have been more than six years old when the accident happened.A. shouldn'tB. couldn'tC. mustn'tD. needn't此题考查推测的表达方式，在表推测意义时，could或can有否定式，may, must 等没有否定式。
2025高考英语一轮总复习情态动词和虚拟语气考点四“情态动词+havedone”的2类用法(含答案)
高考英语一轮总复习考点突破：
考点四“情态动词＋have done”的2类用法
一、对过去发生的事情或状态进行推测
我们本来可以一起面对困难，但是你为什么不告诉我？
Mark needn't have hurried.Driving at top speed, he arrived half an hour early.
马克本不必着急。
他开得飞快，早到了半小时。
即时演练(四)
单句语法填空
1．Your cousin must have enjoyed his trip in Jixian County, didn't he? He looks amazingly different.
2．The spokesman did not regret what he had said at the conference but felt that he could have expressed (express) it indirectly.
3．This may have been an improvement, but “breakthrough” was an overstatement.
4．I'm not feeling well in the stomach. I shouldn't have eaten (eat) so much fried chicken just now.
5．You ought to have come (come) to the party yesterday, but why didn't you
come?。