资源简介

(共39张PPT)
人教版英语7年级下册培优精做课件授课教师：Home .班级：7年级（*）班.时间：.Unit2 SectionA Grammar FocusUNIT 2　No Rules, No OrderLet’s enjoy a video!
Do you know the rules ？
Lead-in
新课讲授
3a
Read the sentences. And try to translate them.
在 祈使句中 和 情态动词后，动词均用原形。
Walk in the hallway. Don’t run!
Be polite and treat one another with respect. Don’t litter. / You mustn’t litter. / You can’t litter.
Can we bring our phones to class No, we can’t. We must keep them in our lockers.
Can we eat snacks in class No, we can’t eat in class. We have to eat in the dining hall.
祈使句中
情态动词后
Do the verbs in bold need to change forms Why
一、根据所给提示完成单词。 （5 分）
1.[2025阜阳期末] Tom is ill today, so he is a (缺席) from school.
2. Jim usually 1 (离开) his home at 7:30and gets to school at 7:50.
3. The old man sits in the room q (安静地)and drinks water.
bsent
eaves
uietly　
4. When we take a car, we must wear our seat b (带).
5. Mike f (喂) his parrot and teaches it to speak every day.
elts
eeds
Imperative Sentences(祈使句)
Walk in the hallway. Don’t run!
Be polite and treat one another with respect. Don’t litter. / You mustn’t litter. / You can’t litter.
祈使句一般用来表示命令、请求、劝说、号召、警告、禁止等。
1.什么是祈使句？
Walk in the hallway. Don’t run!
Be polite and treat one another with respect. Don’t litter. / You mustn’t litter. / You can’t litter.
1.通常省略主语you。
2.其肯定形式常以动词原形开头，否定形式是在动词原形前加don’t。
3.祈使句句尾用句号或感叹号。
2. 祈使句的特点？
肯定式
Turn back!
Go to bed now!
Do型：动词原形+其他
Be quiet, please!
Be careful!
Be型：Be+其他
Let’s go!
Let’s have a rest!
Let型：Let sb do+其他
3. 祈使句的类型？
否定式
Don’t be late!
Don’t smoke here!
Don’t let him leave!
Don’t型 Don’t be+其他
Don’t do+其他
Don’t let+其他
No photos!
No smoking!
No型 No+n.
No+v.ing
二、用can, have to/ must, can’t 或 mustn’t 填空。（5 分）
6.[2025连云港中考改编] From April 8, pet owners(主人) in China bring their cats or dogs on some high-speed trains.
7. You play soccer on the road! It's too dangerous.
8.— I clean the room now
—— No, you needn't. You can do it this evening.
can
mustn't
Must
9.[2025达州中考改编] —— Would you like to go to the old people's home with us tomorrow
—I’ d love to. But I take care of my sister.
10. Helen go shopping with me because her mother needs her to help with housework.
have to
can't
祈使句一般用来表示请求、命令、劝说、号召、警告等。在祈使句中，通常省略主语you，其肯定形式常以动词原形开头，否定形式是在动词原形前加don’t。祈使句句尾用句号或感叹号，读时用降调。为表示礼貌，可以在句首或句末加上please。句末用please时，前面通常加逗号。
Summary
Modal Verbs (情态动词)
Walk in the hallway. Don’t run!
Be polite and treat one another with respect. Don’t litter. / You mustn’t litter. / You can’t litter.
Can we bring our phones to class No, we can’t. We must keep them in our lockers.
Can we eat snacks in class No, we can’t eat in class. We have to eat in the dining hall.
1. 出现了哪些情态动词？
can, must, have to
含义：情态动词用于表达说话人的态度、意愿、推测、建议、能力、义务等。没有人称和数的变化； 后面必须跟动词原形来构成完整的谓语。
2. 情态动词的含义
情态动词can的用法
can可表示能力、许可、请求等。其否定形式为can’t/ cannot.
eg. I can speak a little French. 我会说一点法语。（能力）
We can’t run in the hallways.我们不能在走廊上奔跑。（许可）
Can you help me 你能帮助我吗？（请求）
3. 情态动词的用法
情态动词must的用法
常表示说话人的主观看法，多译为“必须”；没有时态、人称和数的变化。must的否定形式为mustn’t，表示“禁止，不准”。
eg. Must I finish my homework before eight o’clock
Yes, you must.
No, you mustn’t.
No, you needn’t.No, you don’t have to.
mustn’t 表示禁止：不许
情态动词have to的用法
have to表示不得不。常强调客观需要。有时态、人称和数的变化，其否定形式为don’t have to。
1. 肯定句：主语+_____________+___________.
2. 否定句：主语+ _____________ have to+__________.
3. 一般疑问句：__________+ 主语+ have to+__________
回答：Yes, 主语+_________./No, 主语+____________.
do/does
don’t/doesn’t
have/has to
动词原形
动词原形
动词原形
Do/Does
don’t/doesn’t
三、 根据汉语意思完成句子。 （11 分）
11.那个年轻人想插队买票。
The young man wants to for the tickets.
12.她正在车站等公交车，我们过去和她一起等吧。
She’ s the bus at the stop—let's go and join her.
jump the queue
waiting for
13.今天你不该缺席聚会。
You should not the party today.
14.该上课了，不要在教室里制造噪音了。
It's time for class. in the classroom.
be absent from
Don't make noise
3b
Complete the sentences using can, have to / must, or can’t / mustn’t.
1. Don’t jump the queue. You ______________ wait your turn.
2. I _____ feed my dog many kinds of food, but I _______give him
chocolate. It is bad for him!
3. A: Can I leave the classroom if I don’t feel well
B: Yes, but you ___________ tell your teacher about it when you
______ be absent from class.
4. A: Hey! Can I look at your book
B: Shh, we ___________ talk quietly in the library.
5. A: Can you put on your seat belt We ___________ wear one when
we’re in a car.
B: Sure. Thanks!
have to / must
can
have to / must
have to
can’t
have to/must
have to/must
插队
等待你的顺序
缺席
系上安全带
3c
Look at the first sign and read the rules. Then write the rules for the other signs.
Do not eat or drink.
No eating or drinking.
You can’t / mustn’t eat or drink.
Do not park here.
No parking.
You can’t / mustn’t park here.
Do not take photos here.
No photos.
You can’t / mustn’t take photos.
Do not swim here.
No swimming.
You can’t / mustn’t swim here.
Do not feed birds.
No feeding.
You can’t / mustn’t feed birds.
四、根据提示，写出恰当的句子。（3 分）
15. (not, here)
____________________________________________
16. (no, eat, hall)
_______________________________________
17. (must, lake)
_____________________________________
Don't/ Do not take photos here.
No eating or drinking in the hall.
You mustn't swim in the lake.
3d
In groups, brainstorm three rules for one of the places below. Then draw signs to show the rules. Share your signs in class and explain what they mean.
library school dining hall park cinema hospital
In the library, we must keep quiet. We mustn’t make noise. We can’t...
祈使句
肯定：1.Do型：动词原型+其他
2.Be型：Be动词 + 形容词
3.Let型：Let's + 动词原型+其他
否定：1.Don't型：Don't + 动词原型
2.No型：No + 动名词 / 名词
3.Let型：Let's + not + 动词原型
can, must, have to
情态动词
课堂总结
1．— Must we sing a song at the party
— No, you ________.
A．mustn’t B．haven’t to C．not have to D．don’t have to
2．It’s snowing. Please ________ warm clothes.
A．wear B．wears C．wearing D．to wear
3．________ in bed. It’s bad for your eyes.
A．Not to read B．Don’t to read C．Don’t read D．Not read
4．It’s 7:15. Let’s ________ to school.
A．to go B．going C．go D.gone
D
A
C
C
一、单项选择
当堂检测
五、情境串考点 短文填空。 （10 分）
选择恰当的情态动词或助动词补全短文。
Kate will go to her new school. She doesn’t want to be late on the first school day so she 18. _______(can / has to) leave home early.
When Kate gets to school, she meets her teacher Miss Smith. “Welcome, Kate!” Miss Smith says. “I’ll show you around the school.”
has to
First, they walk to the hallway. “19. _____(Can’t/ Don’t) run in the hallways,” Miss Smith says to some boys.
“This is your locker, Kate. You 20. ______(must / don’t have to) remember the password（密码）. And you 21.____ (can / have to) leave your bag and jacket here,” Miss Smith tells Kate.
“I see, Miss Smith,” Kate says.
Don't
must
can　
Then they come to the playground. “Kate, you 22. ____ (can / can’t) do sports with your classmates here, but you 23. ______(can’t / don’t have to) take any food here,” Miss Smith says.
“I will remember that,” Kate says.
“Miss Smith!” a girl named Grace calls, “Jim threw（扔）a ball at me!”
can
can't
“Jim, 24. _____(don’t / doesn’t) do that. Now you 25. _______(must / don’t have to) say sorry to Grace. And you 26._________ (have to / don’t have to) make sure not to do that again,” Miss Smith says.
“Sorry, Grace. Thanks, Miss Smith,” Jim says.
It’s time for class. Kate and all her classmates 27.______ (can / must) go back to class.
don't
must
have to
must
1.You must wear a uniform at school.（改为否定句）
___________________________________________________
2.We can listen to music in the classroom.（改为一般疑问句，并作否定回答）
___________________________________________________
3.Don't talk in the library.（改为同义句）
___________________________________________________
4.He has to get up early.（改为一般疑问句）
___________________________________________________
5.Let's play basketball after school.（改为否定句）
___________________________________________________
二、根据要求改写句子
You mustn't wear a uniform at school.
Can we listen to music in the classroom No, we can’t.
You mustn't talk in the library.
Does he have to get up early
Let's not play basketball after school.
六、［2025广州期末］完形填空。
My name is Kathy. I am a middle school student and now I 28 my family in New York. My parents love me but they are also strict（严格的）with me. So I have a lot of rules at home and I have to 29 them.
28.( )A. live with B. play with C. wake up D. put up
29.( )A. follow B. study C. play D. clean
A
A
First, I must get up 30 and make my bed. Then I have to run with my mother for half a(n) 31 . I don’t like it, but my mother tells me that running in the morning is very 32 because I can be much stronger in this way.
30.( )A. fast B. early C. late D. quietly
31.( )A. day B. second C. minute D. hour
32.( )A. boring B. funny C. important D. tired
B
D
C
Second, I can’t play with my 33 outside after school. My parents ask me to go home early because I have to help my father cook in the 34 . Third, I have to help my mother wash the 35 dishes after dinner.
33.( ) A. friends B. students C. teachers D. parents
34.( )A. hallway B. study C. room D. kitchen
35.( )A. beautiful B. dirty C. clean D. cheap
A
D
B
After my homework is done, I must 36 . a book before I can watch TV. And as my parents 37 me, I have to go to bed by 10:00 p.m. There are too many rules in my family.
36.( )A. look B. watch C. read D. see
37.( )A. ask B. tell C. speak D. say
C
B
七、任务型阅读。 （6 分）
Tony is a new student in our class. And he doesn’t know any rules of our class. So we tell him when to sit, and how to speak and use school things.
When we are having a P.E. class, he wants to sit. “No! We can’t always sit in the P.E. class! We walk, run and stand!” we say. We show him how to do it.
At 12: 00, we go to the dining hall. He sits at a table. “Good job!” we say. And then he speaks in a loud voice. “No! We can’t be too noisy in the dining hall. It’s not polite.” He wants to play with his food. “No! It’s not right to do that.”
He doesn’t know rules are different in different places. And he sometimes forgets them. So we go back to the classroom and write down the rules for different places at school. It’ll be helpful to him.
38. Who tells Tony the rules of the class （不超过5 个词）
_______________________________________________
39. What does Tony do in the P.E. class （不超过5 个词）
_______________________________________________
40. Why do the students write down the rules （不超过10 个词）
_____________________________________________
His classmates.
He wants to sit.
They want to help Tony remember the rules.

展开更多......

收起↑