外研版（2019） 必修第二册Unit 2 Let's celebrate Using language 情态动词 课件(共16张PPT)

(共16张PPT)
Unit 2
Using language
Modals (2)
where is Mike
where is Mike now
No, I don’t find him in his bedroom. He might in his friend’s home.
Mike’s family is enjoying their family dinner.
He could be in his room.
It’s 17:00. He must be in the school.
Where is Mike most possibly
1
2
3
表示对现在的推测：must>can>could>may>might>can’t
Activity 2
Rewrite the underlined sentences in the conversation using can/could, may/might and must.
(At a fancy dress party.)
Chris: I spent ages putting up all the balloons and flowers last night.
Jean: I expect you are feeling tired now!
Chris: Yes, I am. Look, that guy is dressed as Batman. Is that Mike
Jean: It’s possibly him. Check out that girl over there. I’m sure that’s Lucy.
Chris: No, I don’t think that’s Lucy. Lucy isn’t that tall.
Jean: Look at those two guys dressed as chickens! Oh, they’re
waving at us! Maybe they’re from our school.
Chris: Let’s go and find out.
You must be tired now!
It may/might/could be him.
That must be Lucy.
that can’t be Lucy.
They may / might / could be from our school.
情态动词+have done用法
Lucy: The ground is so wet today.
Judy: Yes. It must have rained last night.
must have done表示对过去事情的肯定推测，“一定做过某事”。
Translation:
今天地面好湿啊。
——昨天晚上肯定下雨了。
情态动词+have done用法
Lucy: Where is Mike Has he already gone to Beijing
Judy: He can’t have gone to Beijing, for I saw him this morning.
Translation:
Mike人呢？他已经去北京了吗？
——他肯定没去北京，今早我还看见他了。
can’t have done表示对过去事情的否定推测，“不可能做过某事”, 用于否定句。
情态动词+have done用法
Lucy: What has happened to Mike
Judy: I don’t know. He may have got lost.
Translation:
Mike怎么了？
——我不知道，他可能迷路了。
may have done表示对过去事情的推测，“可能已经”，用于肯定句，但可能性低于must have done。
情态动词+have done用法
Lucy: I can't find Mike. Where can he have gone
Judy: I have no idea.
Translation:
我找不到Mike了，他能去哪儿呢？
——我不知道。
can have done表示对过去行为的怀疑，“可能做过”，用于疑问句。
情态动词+have done用法
Lucy: Did you pass the exam
Judy: I could have pass the exam, but I was too careless.
Translation:
你通过考试了吗？
——我本来能通过考试了，但是我太粗心了。
could have done表示对过去事情的假设，“本来能够做某事（而没有做）”，用于虚拟语气。
假设：
实际：
我能通过考试。
我没有通过考试。
情态动词+have done用法
Lucy: Mike didn’t pass the exam.
Judy: He might have passed the exam if he had studied harder.
Translation:
Mike考试没及格
——如果他学习更努力的话，他可能已经及格了。
might have done表示对过去事情的推测，意义与may相同，但可能性更小，多用于虚拟语气。
情态动词+have done用法
Lucy: What is Mike like
Judy: I would have told you all about his story, but you didn’t ask me.
Translation:
Mike是个什么样的人？
——我本来会告诉你Mike的事情，但你之前没问我呀。
would have done表示对过去事情的假设，意义“本来会做（但没有做）”，用于虚拟语气。
假设：
实际：
我告诉你Mike的事情。
我没有告诉你Mike的事情。
情态动词+have done用法
Judy: I wouldn’t have told you all about Mike’s story.
Lucy: But you did.
Translation:
我本来不应该告诉你Mike的事情的
——但是你告诉我了呀。
wouldn’t have done是would have done 的否定形式。
情态动词+have done用法
Judy: Ah! I can’t finish my homework!
Lucy: You are too lazy. You ought to /should have finished it last week.
Translation:
啊！我作业写不完啦！
——你太懒了，你上周就应该写完了。
ought to/should have done表示对过去事情的假设，意义“本来应该做某事（但实际没做）”，用于虚拟语气。
假设：
实际：
你上周就写完作业了。
你没有写完作业。
情态动词+have done用法
Judy: Mike is crying. You oughtn’t to/shouldn’t been so rude to him.
Lucy: I’m sorry.
Translation:
Mike 哭了，你本来不应该对他如此粗鲁的。
——对不起。
oughtn’t to/shouldn’t have done表示对过去事情的假设，意义“本来不应该做某事（但实际做了）”，用于虚拟语气。
假设：
实际：
你对Mike不粗鲁。
你对Mike粗鲁。
情态动词+have done用法
Judy: I bought 10 bottles of wine.
Lucy: You needn’t have bought so much wine, for only 5 people were here.
needn’t have done意义“本来不必做某事（但实际做了）”。
Translation:
我买了10瓶酒。
——你不必买那么多酒的，这里只有5个人。
Thank you