2023年中考英语情态动词复习课件(共41张PPT)

(共41张PPT)
情态动词
大闯关
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挑战来了
Are you ready
Go!
must “必须”（命令或强制，决心，不可推卸的责任）
must提问
--Must I finish my task right now
肯定回答： must
否定的回答： needn’t / don’t have to
-- Yes, you must.
-- No, you don’t have to / needn’t.
mustn’t
“不能、不准” 表示禁止做某事
使用情景：
不能闯红灯
图书馆不能喧哗
酒后不能开车
不能玩刀具
mustn’t cross the street when the light are red
mustn’t make any noise in the library
mustn’t drive after drinking
总结：当表示规则；法律规定；涉及到生命安全；命令等情景时
mustn’t play with the knife. You may hurt yourself.
must 和have to的区别
have to：表示因为客观原因而不得不做的事情，翻译为“不得不”
must：表示主观的责任和义务，翻译为：必须
Students must finish their homework on time.
It’s raining outside, we have to stay at home.
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根据场景用have to 和must填空。
1. My eyes are not very good. I ________ wear glasses.
2. In many countries, men ________ do military(军事的) service.
3. We ________ walk home last night. There were no buses.
have to
must
had to
单项选择
1. --Must we finish giving out the posters today
--Yes, we _______. It can’t be put off any longer.
A. can B. may C. must.

单项选择
2. --I didn’t pass the math test. I think I have spent too much time
playing computer games recently.
--I agree. You ____ play like that any more.
A. needn't B. mustn't C. may not D. wouldn't

单项选择
3. When traffic lights are red, we _________ stop and wait.
A. may B. can C. must D. might

You need cry, dear!
有你的快递！
need
怎么安慰一个哭晕在厕所的女生？
You needn’t go to a doctor.
You don’t need to lose weight.
need： 需要
为什么会有不同？
实义动词
情态动词
need to do
need do
人称？
时态？
I need to study.
He needs to study.
need to do
needed to do
will need to do
否定：don’t/ doesn’t/ didn’t
need to do
need do .
否定：need not do sth
人称？
时态？
need sth.
Do/ Does/ Did sb. need to do sth.？
need sb. do sth.
Yes, sb. must.
No, sb. needn’t./don’t have to.
Yes, sb. do/ does/ did.
No, sb. don’t/ doesn’t/ didn’t.
Do the students need to stay up late
Need the students stay up late
Yes, they do.
No, they don’t.
Yes, they must.
No, they needn’t/don’t have to.
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1. You ________ worry about her.
A. needn’t to B. don’t need
C. don’t need to D. not need
2. There’s enough time for you to go to the airport. You ________ hurry now.
A. should B. needn’t
C. must D. can’t
3. Tom ________ some money to buy books.
A. need to borrow B. needs to borrow
C. needs borrow D. needs borrowing
4. -- Where is Jason I want to tell him about the result of the singing competition.
-- Oh, you ________. He has known it already.
5. She is a tough（坚强的） girl. You ___________ worry about her.
needn’t
don’t need to
6.我需要帮助。
___________________________________
7. 学生需要做作业吗？
___________________________________
8.你没有必要这么早来学校。
___________________________________
I need help.
Do students need to do homework
You don’t need to get to school so early./
You needn’t get to school so early.
4. be able to 多表示“人”；而can 既可以指“人”，也可以表示“物”
例：He is able to drink 100kg milk in 1 minute.
The dog can run so fast after eating 100kg meat.
5. can 可以用于被动语态，而be able to 不能用于被动语态
6. can 与 be able to 不能重叠使用.
如：He can be able to do it by himself.
翻译题
1. 她做饭能做的很好
_____________________________________________________________________________________
2. 他们不能发现任何秘密。
_____________________________________________________________________________________
She can cook well./ She is able to cook well.
They can't find any secrets./ They are not able to find any secrets.
1. 表推测，“可能”，“也许”，may的可能性比might大。
may & might
She may be in the room. I’m not sure.
You might see him if he is here tomorrow.
may & might
2. 表示请求和允许 “可不可以”，might比may语气更委婉.同时，might也是may的过去式。
May I help you
I’d like to use your restroom if I may.
May I come in
The teacher told her that she might return the book in three days.
may
3. 表祝愿。 May+主语+动词原形
May you have a good day.
May you succeed in winning the first prize in the game.
can & could
1. 表示具备某种能力，“能”，“会”。could是can的过去式。
I can play the guitar.
I could swim when I was seven years old.
表“能力”时，be able to=can，意义差别不大。
如：I can/ am able to get good grades.
.
区别：
1. 在词义上，can 除表“能”，“会”外，还可以表示“许可”
而be able to 则不能。
如：You can go now.
2. can 只用于一般现在时和过去时；而be able to 可用于任何时态
例句
3. be able to 强调通过努力而获得的能力，而can则强调自身已具有的能力
例：The birds can fly in the sky.
He is able to sing My heart will go on after practicing it for several hours.
选择题
※1. He ________ sing this song in English after learning it for several hours.
A. can B. is able to C. will be able to
※2. Mary ________ reach the apples.
A. can B. is able to C. 两者都可以
B
C
2. 表委婉请求和允许，could语气比can更委婉。
can & could
— Could I use your bike tomorrow morning
— Sorry, you can’t.
should
had better (not) do
“应该”
“最好（不）做”
I should go home first after school.
You had better not smoke here.
= You’d better not smoke here.
shall: 多用于第一人称
Shall I go home now
Shall we get the bags down before the train stop
would like 想要
I would like a cup of tea.
= I’d like a cup of tea.
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1. --Mum, ________ I visit the Movie Museum tomorrow
--I’m afraid you can’t. It is closed on Monday.
A. must B. may C. should D. need
2. --Where are you going this month
--We ________ to to Xiamen, but we’re not sure.
A. needn’t B. must C. might D. mustn’t
B
C
3. Your shirt is rather dirty. ________ I wash it for you
Do B. Will C. Have D. Shall
4. You work too much. I think you ________ take it easy.
A. had better B. have better C. have to D. are able to
D
A
填空:
5. A: Can you ride a bike
B: No, I ________.
6. ________ you like to help me
7. __________ we call the doctor now, she seems to have a fever.
can’t
Would
Shall/ Must
句子翻译：
8. Shall I open the window
9. I could play the piano when I was in primary school.
要我打开窗户吗？
我在小学的时候会弹钢琴。
改错：
10. The weather is not good. We’d better to stay at home.
11. My mom told me that she may go back home at 9 .
might
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小测
Are you ready
Go!