Unit 9 Can you come to my party?复习课件（上）2021-2022学年人教版八年级上册英语(共24张PPT)

(共24张PPT)
Unit 9 Can you come to my Party
-by xx老师
目录-CONTENTS
一、语法篇
二、短语篇
三、单词篇
四、总结篇
翻译
句子
第一部分
语法篇 -- 情态动词
（1）情态动词的定义
情：情感 态：态度
表示说话人情感和态度的词。
比如： can could may might should need must...
（二）情态动词的使用规则
情态动词要记牢
动词原形来跟梢
不分人称单复数
除了have to
I can eat a lot.
She can eat a lot.
He could eat a lot.
They could eat a lot.
We have to go now.
He has to go now.
备注：情态动词+动词原形
情态动词不分人称单数和复数
eg:
【 练一练 】
1. I can ______ my homework tomorrow.
A. finish B. finishes C. will finish D. finishing
2.-There are no other ways but a bridge over the river. So he ______ cross it.
A. can B. have to C. has to D. cans
3. People ______ use AI in their daily life now.
A. can B. cans C. is canning D. are canning
A
C
A
超人 Superman
（三）情态动词相关的句型结构
We can be supermen.
1. 我们能成为超人。
Can we be supermen
3. 我们能成为超人吗？
We can not be supermen.
can not=can’t
2. 我们不能成为超人。
What can we be
4. 我们能成为什么呢？
肯定句：主语 + 情态动词 + 动词原形 + 其他。
否定句：主语 + 情态动词 + not + 动词原形 + 其他。
一般疑问句： 情态动词 + 主语 + 动词原形 + 其他？
特殊疑问句： 特殊疑问词 + 情态动词 + 主语 + 动词原形 + 其他？
特别补充：may--may not might -- might not must--mustn't
need--needn't should -- shoudn’t have to -- don’t/doesn’t have to
（四）常见情态动词的用法
can ---- 表“能力，许可，请求”
01 can vs could
Yanyan could play the piano when she was ten.
Could you tell me your phone number？
could ---- 表过去具备某种能力；也可表示委婉地请求
I can speak Chinese and English.
You can play basketball on weekends.
Can you help me with my English
can泛指一般的能力
be able to 则主要指具体做某件事情的能力
He can swim. 他会游泳。
I am able to draw. 我会画画。
（四）常见情态动词的用法
may ---- “可以，可能” 表请求
02 may vs might
might ---- “可以，可能” 表更委婉地请求
May I come in
Might Icome in？
更
委
婉
哟~
谁比谁更脸厚
（四）常见情态动词的用法
Everyone must take notes carefully in my class.
You mustn't smoke here.
03 must vs have to
have to -- 表“不得不” 三单：has to 过去式：had to
must -- 表“必须”
mustn’t -- 表“禁止”，常与“park/smoke”连用
解题技巧
一句话must
两句话have to
I am thirsty. I have to get something to drink.
My sister is ill, my mother has to look after her.
（四）常见情态动词的用法
should ---- 表义务、责任、劝告和建议时翻译为“应该，应当”，
表估计时翻译成“按理应当、估计”
04 should
I should do my homework by myself. (表义务)
You shouldn’t talk in class. （表建议）
They should be there by now, I think. （表估计）
(我估计他们现在应该已经到那儿了。)
（四）常见情态动词的用法
had better do sth. 最好做某事
had better not do sth. 最好不做某事
05 had better
had better ---- “最好......” 缩写形式 ‘d better
You’d better take off your coat.
You’d better not do this again.
（四）常见情态动词的用法
She needs to get up early.
She doesn't need to get up early.
06 need
need ---- 情态动词，“需要”，无人称和数的变化，多用于否定句和疑问句
否定形式 needn’t 常用：need do sth.
need ---- 实意动词，“需要”
否定形式 don't need 或者 doesn't need 常用：need do sth.
Need I come back home now
You needn’t hurry up.
【 练一练 】
1. It's raining all day, so we________stay at home.
A. can B. must C. may D. have to
2. -Mum， can I wear the the dress I bought yesterday to school
-No, you can't. You _____ wear your uniform(校服).
A．can B．may C．must D. might
3. Parents always tell us that young kids ______ play with fire.
A. needn't B. shouldn't C. couldn't D. wouldn't
3. It's too late. The post office is very far. We ____ email these letters today.
A. do not B. might not C. had better not D. could not
4. I am feeling much better now so you ______ call the doctor.
A. couldn't B. wouldn't C. can't D. needn't
5.—Can Paul go to the party with me this evening
— _______. He has the flu.
A Yes, please B Yes, he’d love to C I’m afraid he can’t D No problem
D
C
B
C
D
C
（五）情态动词的问答
1.-Could I come in
-Yes, you can.(肯定回答)
-No, you can't.(否定回答)
2.-May/Might I come in
-Yes, you can/must.(肯定回答)
-No, you can't/mustn't.(否定回答)
3.-Must I come in
-Yes, you must.(肯定回答)
-No, you needn't/don’t have to.(否定回答)
谁来提问谁来答
could提问can来答
may和might好姐妹
can和must来作答
若是must来提问
否定needn’t来回答
巧记口诀
挑战杯开始啦
will 提问谁来答
could提问谁来答
might提问谁来答
need提问谁来答
must提问谁来答
will
can
can/must
need
must(肯)/needn't(否)
【 练一练 】
1. - Could you please have a walk with me
- Sorry, I ______. I have something important to do now.
A. mustn't B. needn't C. can't D. may not
2. - May I swim in the lake
- No, you ______.
A. may not B. mustn't C. needn't D. shouldn’t
3. - ______ I swim here
- I'm sorry. Children under 12 ______swim alone here.
A. Can; mustn't B. May;must C. Must;can't D. Can't;can
4. - May I play with Jack, Mom
- ______. He is a lazy boy.
A. No, you mustn't B. No, you don't C. Yes, you do D. Yes, you may
5. - May I try on the jeans？
- Of course, you______.
A. should B. need C. can D. must
A
C
B
A
C
【 练一练 】
6. – Must we clean the classroom at once？
- No，you______.You may clean it after school.
A. mustn't B. needn't C. can't D. need
7. I bought dinner so you ______ cook for us.
A. couldn't B. shouldn't C. needn't D. can't
8. You _____ break anything at Spring Festival．
A. couldn't B. wouldn't C. needn't D. mustn't
9.—May I watch TV, Dad
—When your homework is finished, you______.
A should B can C must D need
10.Could you please speak a little louder I_______hear you very well.
A can’t B mustn’t C shouldn’t D needn’t
11.—Would you like to go to the movie with me tonight？
— ______. See you then.
A No problem B I’m not free C Yes, please D I’m not sure
D
B
B
C
A
A
（六）情态动词表“推测”的用法
can may must can’t could might
小
大
can’t
might
may
could
can
must
备注：must -- 一定 can’t -- 一定不
may/might/can/could -- 可能
【 练一练 】
1. -It's midnight now， but Kitty hasn't returned.
-Her mother _____ be worried.
A．can B．may C．must D．need
2. This pair of shoes_____ be Yanyan's. They're too big for her.
A．shouldn't B．can't C．mustn't D．may not
3. -May I park my car here for a while？
-No, you _____ . Do you see the sign "NO PARKING"
A. couldn't B. needn't C. shouldn't D. mustn't
4. -Where are you going for your summer holidays
-I ______ go to the U.S.A.. I haven't decided yet.
A. may B. need C. must D. mustn't
5. In most museums， you _____touch anything.
A．may B．might C．needn't D．mustn't
6. -Mum，must I stay there for the whole day？
-No，you____.You ____ come back after lunch，if you like.
A．mustn't；can B．needn't；must C．needn't；can D．mustn't；must
C
B
D
A
D
C
That’s all!