发布者：钟彦芳 发布时间：2019-06-14 浏览数( -) 【举报】
高一年级英语必修四
《Module 6 Unexplained Mysteries of the Natural World》Grammar 导学案
班级 课时 时间
学习目标
学习情态动词+have+过去分词的用法
重点难点
区分情态动词+have+过去分词的两种用法
学习探究
情态动词+have+过去分表推测
1．must+have+过去分词 表示对过去的推测，语气肯定。
eg: It must have rained last night, for the road was quite muddy.
译：______________________________________________________
You must have mistaken Anna for her sister.
译：______________________________________________________
2. may have done表示对过去行为的推测，把握性较小时可译为“可能已经”或“也许已经”。
He said they may have missed the plane.
译：______________________________________________________
I think he may have got the news.
译：______________________________________________________
3. might have done 表示对过去行为的推测，但把握更小，可译为“可能已经”或“也许已经”。
She might have left home when I got to school.
译：______________________________________________________
4. can't have done表示对过去事情或行为的否定推测，并且可能性较大，常译为“不可能”。
They can’t have gone to work, as it’s weekend.
译：______________________________________________________
学习探究二
情态动词+have+过去分词的其他用法
1. should have done=ought to have done
表示过去应该做但没有做的事情，含有责备、遗憾的意思，可译为“本应该”。
In my personal opinion, you should have done this as soon as you found out he was stealing.
译：______________________________________________________
You ought to have returned the book early, many people want to read it.
译：______________________________________________________
shouldn’t have done=oughtn’t to have done
表示过去该做却没做，常含有后悔或责备的意味。
I shouldn’t have ordered the equipment without asking you first.
译：______________________________________________________
2. could have done表示过去能够完成而实际上没有实现的动作，可译为“本来能，本来想”，提出委婉的批评。（是一种虚拟语气的语法）
You could have done better, but you were too careless.
译：______________________________________________________
You could have phoned me. I didn’t know where you were.
译：______________________________________________________
3. need have done 表示本来需要做而没有做
needn’t have done 表示本来不需要做而做了
He need have hurried to the station. In that case, be wouldn't have missed the train.
译：______________________________________________________
I needn’t have bought so much wine—only five people were here.
译：______________________________________________________
4. would have done 为虚拟语气，表示对过去发生的事情的假设，可译为“本来会做但没有做”，其否定形式为wouldn't have done
I would have told you about the boy’s story, but you didn’t ask me.
译：______________________________________________________
Without your help, I wouldn’t have achieved so much.
译：______________________________________________________
达标检测
1. She______ have left school. For her bike is still here.
A. can't B wouldn't C shouldn't D needn't
2. Harry ______ have won the Physics competition easily yesterday, but he gave up.
A. could B. might C. should D. must
3. The flowers are dead. I_______ them yesterday.
A. should water B. must water C. should have water D. must have water
4. I _______ have watched that movie—it’ll give me horrible dreams.
A. shouldn’t B. needn’t C. couldn’t D. mustn’t
5. -Was it you that made the suggestion?
- It _______ have been. I can’t remember.
A. need B. must C. should D. may
6. The weather turned out to be fine yesterday. I_______ the trouble to carry my umbrella with me.
A. should have taken B. could have taken
C. needn't have taken D. mustn't have taken
7. It _____ have been Tom that parked the car here, as he is the only one with a car.
A. may B. can C. must D. should
8. I didn’t see her in the meeting room this morning. She_____at the meeting.
A. mustn’t have spoken B. mightn’t have spoken
C. can’t have spoken D. shouldn’t have spoken
9. -Hi, is that Peter Brown?
-Sorry. You ______ the wrong number.
A. must dial B. must have dialed C. should dial D. should have dialed
10. -Catherine, I have cleaned the room for you.
-Thanks. You______ it. I could manage it.
A. needn’t do B. needn’t have done C. mustn’t do D. shouldn’t have done
分层作业
1. 复习情态动词+have+过去分词的两种用法。
2. 完成《步步高》P.59 练习。