资源简介

(共34张PPT)
Grammar Focus
英 语
RJ
7年级下册
第3课时(3a-3d)
Unit 2 No Rules, No Order
1. grasp the grammar by reading and doing related exercises;
2. use imperative sentences and model verbs correctly;
3. talk about rules by using model verbs.
Learning goals
Warming up
Let’s enjoy a video!
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
Read the sentences. Do the verbs in bold need to change forms Why
3a
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？
Grammar Focus
Grammar Focus
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？
Grammar Focus
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？
Grammar Focus
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
Grammar Focus
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
Grammar Focus
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
Grammar Focus
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
Grammar Focus
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
Grammar Focus
Complete the sentences using can, have to / must, or can’t / mustn’t.
3b
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!
Don’t jump the queue. You ____________
wait your turn.
must/have to
queue n. 队
jump the queue 插队
Complete the sentences using can, have to / must, or can’t / mustn’t.
3b
I ____ feed my dog many kinds of food, but I ____________ give him chocolate. It is bad for him!
can
can’t/mustn’t
Complete the sentences using can, have to / must, or can’t / mustn’t.
3b
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.
must
v. 离开；留下
absent adj. 缺席的；不在的absent from 缺席；不在
have to
Complete the sentences using can, have to / must, or can’t / mustn’t.
3b
A: Hey! Can I look at your book
B: Shh, we ___________ talk quietly in the library.
must/have to
interj. 嘘（用以让别人安静下来）
adv. 轻声地；安静地
Complete the sentences using can, have to / must, or can’t / mustn’t.
3b
A: Can you put on your seat belt We _____________ wear one when we’re in a car.
B: Sure. Thanks!
must/have to
n. 安全带；腰带；皮带
穿上；戴上
Complete the sentences using can, have to / must, or can’t / mustn’t.
3b
Do not eat or drink.
No eating or drinking.
You can’t/mustn’t eat or drink.
Look at the first sign and read the rules. Then write the rules for the other signs.
3c
Do not park.
No parking.
You can’t / mustn’t park.
Do not take pictures.
No taking pictures.
You can’t / mustn’t take pictures.
Look at the first sign and read the rules. Then write the rules for the other signs.
3c
Do not swim.
No swimming.
You can’t / mustn’t swim.
Do not feed birds.
No feeding birds.
You can’t / mustn’t feed birds.
Look at the first sign and read the rules. Then write the rules for the other signs.
3c
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.
3d
library school dining hall park cinema hospital
In the library, we must keep quiet.
We mustn't make noise. We can't …
In the library
We must keep quiet.
We mustn’t make noise.
We can’t eat or drink here.
We can’t take books out of the library without permission.
In the school dinning hall
We can’t jump the queue.
We can’t waste food.
We have to clean the table before we leave.
In the park
We can’t throw rubbish here and there.
We can’t walk on the grass and pick flowers.
We can’t play with fire.
In the cinema
We must sit on the assigned seat shown on the ticket.
We mustn’t smoke here.
We must keep quiet while watching.
In the hospital
We mustn’t smoke.
We have to be quiet.
Don’t run in the hallways.
Rules are everywhere in our daily life. We should follow the rules and make a quiet and comfortable place for everyone.
Show time
Evaluation (评价机制) Stars
Language
Pronunciation
Body language
Describe correctly
Excellent Great Good





Do型：动词原型+其他
Be型：Be动词 + 形容词
Let型：Let’s + 动词原型+其他
Don’t型：Don’t + 动词原型
No型：No + 动名词 / 名词
Let型：Let’s + not + 动词原型
肯定
否定
祈使句
can
情态动词
must
have to
Summary
单项填空
Exercises
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
提升作业
复习本课中祈使句和情态动词的使用。
拓展作业
选择一个自己熟悉的场景，如家庭、学校走廊等，用祈使句和情态动词制定规则，并画成标识。
基础作业
1. 熟读3b的对话;
2. 抄写Grammar Focus表格中的句子。
Homework
Thanks
Class is over! Bye!
Unit 2

展开更多......

收起↑