中考复习专项-情态动词 课件

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你记得哪些情态动词呢？
提问
Revision for Modal Verbs
中考专题复习之情态动词
can
could
初中常见的情态动词有哪些呢
must
have to
may
might
shall
should
will
would
need
情态动词到底是什么呢？
情态动词
本身有一定的词义
通常没有人称和数的变化
不可独立做谓语
后接动词原形
情绪
态度
语气
1.表推测
It can't be him.
2.表必须
You must be on time.
3.表需要
I needn't go there again.
4.表能力
You can really dance.
5.表意愿
I will never do that again.
6.表义务
We should study hard.
7.表请求
May I come in
8.表禁止
You mustn't smoke here.
第一对 c p
can VS could
can
could
否定式+not
过去式
couldn't
can't
表能力
表推测
表请求
I can sing, but she can't.
It can't be your teacher.
Can/Could I use your book
不能，不会
不可能
考点一：
情态动词的基本用法
Practice
1.-Mum,May I go to see a film with my cousin
-You ____ go if you have finished your homework.
A. must B. need C. should D. can
2.-The beautiful lady with glasses over there looks like our English teacher.
-It ____ be her. She has gone abroad.
A. can't B. may not C. mustn't D. needn't
3.-Some people don't show their talents at the very beginning.
-I agree. Even Einstein ____ read until he was seven.
A. can B. mustn't C. couldn't D.needn't
表允许
表推测
表能力
can VS be able to
1.表能力时，可以互换
He can/could speak English.
He is/was able to speak English.
不同点
2.can强调自身已具有的能力，表示一种可能，并不强调是否完成。只用于一般现在时和一般过去时。
3.be able to强调通过努力完成某事的能力，可用于各种时态。
I can sing this song now.
She could sing this song when she was 3.
He will be able to sing this song in a few minutes.
第二对 c p
must VS have to
must
mustn't
1.表主观上必须
2.表推测，肯定
3.无人称，数和时态的变化
禁止
We must study hard.
Must I finish homework now
Yes, you must.
No, you needn't/ don't have to.
We mustn't eat wild animals.
have to
表示客观上不得不
有人称，数和时态的变化
不必
don't have to
I have to stay at home.
He has to stay at home, too.
We don't have to study at school.
Practice
4.-Must I hand in the homework right now
- ____ That's the rule.
A. Yes, you can. B.No, you can't.
C. Yes, you must. D. Yes, you mustn't.
5.-Must I finish this work at home -No, you ____ .
-It ____ be her. She has gone abroad.
A. can't B. won't C. mustn't D. don't have to
6.He ____ like coffe. I always see him drink a cup.
A. may B. must C. can't D.mustn't
Practice
7.-Mum, it's too hot. ____ I swim in the lake
- No, you ____ . That's too dangerous.
A. Should; can't B.Need; mustn't
C. Must; needn't D. Could; mustn't.
8.-Mum,may I play computer games this evening
-No way. You ____ finish your homework.
A.can B. must C. may D. will
表请求；表禁止
表必须
第三对 c p
may VS might
may not
可能不
可能
might not
可能不
1.表请求，might比may更委婉
2.表推测，might可能性＜may
3.表祝愿，may放句首
May/Might I use your phone
Yes, you can.
No, you can't/mustn't.
you'd better not.
The phone may/might be hers.
May you teturn safe and sound!
May you succeed!
Practice
9.-May I join the art club, Dad
- If you have interest, you ____.
A. should B.can C. have to D. must
10.-I can't find my phone anywhere.
-You ____ have lost it while shopping.
A. may B. can C. should D. would
11.-Who's singing in the next room
- It ____ be Lisa, but I'm not sure.
A. must B. might C. need D.can
表推测
表可能性小的推测
第四对 c p
shall VS should
shall
should
1.表征询意见
用于第一、三人称疑问句
Shall we wear a mask
2.禁止、命令和警告
用于第二、三人称疑问句或否定句
You shall wear a mask
He shall not go out without a mask.
过去式
表建议、责任和义务
“应当、应该”
You should wear a mask.
should = ought to
You ought to wear a mask.
第五对 c p
will VS would
I will take exercise everyday.
I porimised that I would take exercise everyday.
常见句型：
Would you like (to)...
Would you please...
Would you mind (doing)...
1. 表意愿，主动提出做
2.表请求，would更委婉
单身汪
need(需要)
情态动词
无人称、数、时态的变化
否定句 疑问句 条件句
needn't 不需要
实义动词
有人称、数、时态的变化
人作主语：need to do sth.
物作主语：sth. need doing.
= sth. need to be done
Need I finish homework today
Yes, you must/have to.
No, you needn't/ don't have to.
我今天需要完成家庭作业吗？ 疑问句
你今天不必完成家庭作业。 否定句
You needn't finish homework today.
如果你真的不想，你今天不必完成家庭
作业。 条件句
You needn't finish homework today if you really don't want to.
情态动词
这男孩需要修一下自行车。
The boy needs to repair his bike.
The bike needs repairing by the boy.
The bike needs to be repaired by the boy.
实义动词
人作主语：need to do sth.
物作主语：sth. need doing.
= sth. need to be done
Practice
12.As middle school students, we ____ follow the public rules wherever we go.
A. should B.would C. might D. could
13.Jerry didn't pay me back, but he promised that he _____ this Sunday.
A. must B. could C. should D. would
14.The designer has tried every possible way to make the robot light, so you ____ worry about its weight.
A. must B. may C. needn't D.can't
表意愿
不必
表义务
考点二：
情态动词表推测的用法
口 诀
can 不肯
may 不问
must 不否问
表猜测时
can 通常不用于肯定句
may 通常不用于疑问句
must 通常不用于否定句
1、肯定的推测
must
100%
may/could
might
Miss Chen _______(或许) be your favorite teacher.
Miss Chen _______(很可能) be your favorite teacher.
Miss Chen _______(肯定) be your favorite teacher.
might
may/could
must
2、否定的推测
It _________________(或许不是) be a woman.
It __________(不可能) be a woman.He's Xiaoshengyang. He's so funny.
can't
may not
could not
might not
不可能
可能不
may/might/could not
can't
mustn't
3、情态动词表推测的三种时态
It must/may/might/could be cloudy now.
Xiao Ming must/may/might/could be studying at home now.
1.对现在的猜测，用“情态动词+be doing或情态动词+动词原形”
2.对将来的猜测，用“情态动词+动词原形”
3.对过去的猜测，用“情态动词+have+动词的过去分词”
It must/may/might/could be sunny tomorrow.
It must/may/might/could have rained last night. The ground is wet.
特殊情况
1.本应该做某事，而实际上并没做
should have done
She should have attended your birthday party, but she had to look after her mother in hospital.
2.本可以做某事，而实际上没有做
could have done
He could have told you the truth, but he didn't.
她本该出席你的生日晚会的，可她得在医院照顾他的妈妈。
他本可以告诉你真相的，可是他没有。
考点三：
情态动词一般疑问句的回答方式
②-May I come in
-Yes,you may.
No, you can't/mustn't.
①-Can you sing
-Yes, I can.
No, I can't.
③-Must I go home now
-Yes, you must.
No, you needn't./
you don't have to.
④-Need I finish it now
-Yes, you must/ have to.
No, you needn't.
不可能是
一定是
趁热打铁
- Do you think that Kobe will be elected as the MVP this year
- It _____ be him. He has retired(退役) since April 14,2016.
A. can't be B.mustn't be
C. must be D. can be
可能是
禁止
联系上下文语境法
趁热打铁
- Excuse me, ____ I take the magazine out of the reading room
- Sorry, you can't. Just here, please.
A. must B. would
C. may D. need
愿意
必须
直接判断法
可以，表请求
需要
趁热打铁
- Excuse me, is this the right way to the Children's Palace.
- Sorry, I'm not sure. But it _____ be.
A. mustn't B. might
C. can't D.must
可能（可能性较小)
禁止
前后照应法
不可能
必须
趁热打铁
- These day people in China _____ take too much money when shopping because they often use Ali Pay or WeChat Pay.
A. needn't B. mustn't
C. shouldn't D. can't
不必，表需求
- If you wish, you ____ come in and have a cup of coffee.
A. may B. must C. should D.would
表允许
表意愿
一般疑问句的肯定回答
趁热打铁
- Try this soup, you _____ like it.
- Wow, this is delicious!
A. must B.will C. shall D. can
- Must you go
- Yes, I'm afraid I really _____.
A. may B. should C. must D. can
第一空表禁止
第二空表推测
趁热打铁
You ____ walk on the wet hill path because you ____ fall and hurt yourself .
A. must ; might not B.mustn't; might
C. needn't; need D. must; must
The girl in the classroom _____ be Sarah. She has gone to the library.
A. may B.must C.can't D. mustn't
不可能
禁止
表能力
表肯定的推测
趁热打铁
- Have you got the results of the exam
- No. All we ____ do now is to wait.
A. must B.can C. may D. could
- I stll haven't found my pet dog.
- I'm sorry to hear that. You ____ be very sad.
A. can B. should C. must D. will
C U ！