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Unit 4 Don’t eat in class.
Period(Two) Section A(grammar focus-3c)
人教版 七年级下
Lead in
Learning objects
Objectives
To learn Imperatives Don’t…:
Don’t run in the hallways.
To learn to use can for permission:
Can we eat in the classroom
To learn to use modal verbs have to & must:
We have to be quiet in the library.
We must be on time for class.
1. 不要在楼道里跑。
_______________________
2. 不要打架。
_______________
3. 有什么规矩？
__________________________
我们必须按时上课。
__________________________
Don’t fight.
Don’t run in the hallways.
What are the rules
We must be on time for class.
Grammar focus
4. 我们可以在教室里吃东西吗？
_____________________________
不能。但我们可以在餐厅里吃东西。
______________________________
______________________________
5. 我们可以在上课的时候带帽子吗？
___________________________
可以。/ 不可以。
______________________________
Can we wear a hat in class
No, we can’t, but we can eat in the dining hall.
Can we eat in the classroom
Yes, we can. / No, we can’t.
6. 他在学校里必须穿校服吗？
__________________________________
是的，必须。/ 不，不必。
__________________________________
7. 你们必须做什么？
__________________________________
在图书馆里我们必须保持安静。
__________________________________
Yes, he does. / No, he doesn’t.
Does he have to wear a uniform at school
What do you have to do
We have to be quiet in the library.
祈使句的用法
1.祈使句的概念
(1)祈使句是指用来表示请求、命令、叮嘱、
建议等的句子。祈使句没有主语，谓语动词
用原形，句末使用感叹号或者句号。
例：站起来！
一定要准时。
（命令）
(叮嘱)
Stand up!
Be sure to be on time.
(2)如果祈使句表示客气地请求，一般要加上please。
please可以放在句子前面也可以放在句子的后面。
例: 请跟我读。
Please read after me.
（请求）
= Read after me, please.
2.祈使句的形式
(1)let开头的祈使句的肯定句：Let + sb.+ v.（原形）
例: 让我们帮助你。
Don’t let them come in.
Let us help you.
否定为：Don’t + let + 第三人称代词+v.（原形）
例: 不要让他们进来。
(2)非let开头的祈使句的肯定句和否定句：
肯定句
Do 型
Be 型
动词原形（+宾语）+其他成份.
Be+表语(名词或形容词）+其他成份.
例：Listen to me, please.
例：Be quiet, please.
请听我说。
请安静。
否定句
Don’t +行为动词 +其他.
Don’t + be +其他.
No + n./v.-ing.
例: Don’t play computer games.
例: Don’t be late again.
例: No photos.
No swimming.
不要玩电脑游戏。
不要再迟到。
不许拍照。
不许游泳。
3.祈使句的用法
主语是you常省去，动词原形开头记。
否定形式要注意，句首要把don’t加。
要讲客气用please， 句首、句末没关系。
情态动词must与have to
1.情态动词must的用法
(1)表示做某一个动作的必要和义务，意思是
“必须、应该”。
例:你必须做你的作业。
You must do your homework.
(2)表示有很大把握的判断或者推测，它的意思是
“一定、准是”。
例:那个高个子男人一定是你的爸爸。
The tall man must be your father.
(3)以must开头的一般疑问句，它的否定回答用
needn’t (不必要),不用mustn’t(不允许) ,mustn’t
常用于否定句中，表示“不允许，禁止”。
例:你的车不允许停在这儿。
You mustn’t park your car here.
2.情态动词have to的用法
have to表示客观需要做的事情，意思是“必须，
不得不”。
(1)have to后接动词原形，意为“必须做……；不
得不做……”。
例: 我不得不离开了。
I have to leave.
(2)have to有人称、数和时态的变化，其第三人称
单数形式为has to。
例: 她不得不做作业。
She has to do her homework.
(3)含有have to, has to的句子变疑问句或否定句需
分别借助助动词do, does 。
例: 他们必须早起吗？
Do they have to get up early
Do you know the meanings of these signs
No talking!
Can we talk in the library
We can’t talk in the library.
Don’t talk!
We must keep quiet in the library.
You can’t bring your school bags in the library.
Don’t bring your school bags.
We can’t bring umbrellas.
Don’t bring your umbrellas.
Don’t eat food.
You can’t eat in the library.
You can’t listen to music.
Don’t listen to music.
Library Rules
1.__________________ 2.__________________
3.__________________ 4.__________________
Don’t talk.
Don’t eat or drink.
Don’t listen to music.
Don’t take photos.
Write the rules for the school library.
3a
1.No talking.
3. No music.
Do you know these signs
Tips: No+n. / v.-ing = Don’t do
No Swimming
No Parking
No Smoking
No talking
No mobile phone
Must wear mask
Use the words to make questions about
the rules. Then write answers according
to your school.
3b
1. Be quiet
(she/have to /in the library)
Q: Does she have to be quiet in the library
A: Yes, she does.
2. Eat
(he/have to/in the dining hall)
Q: ___________________________________
A: ___________________________________
3. Listen to music
(we/can/in the hallways)
Q: __________________________________
A: __________________________________
Does he have to eat in the dining hall
Yes, he does.
Can we listen to music in the hallways
No, we can’t.
4. Wear a hat
(we/can/in the classroom)
Q: __________________________________
A: __________________________________
Can we wear a hat in the classroom
No, we can’t.
At my dream school, we don’t have to come to school every day…
We can eat in class…
Make up five cool rules for your dream school. Share your rules with the class. Your classmates vote for the Coolest School!
3c
We don’t have to wear school uniforms…
We don’t have to do homework every day…
At my dream school, we don’t have to come to school every day. We can eat in the classroom. We can listen to music in class. We don’t have to do homework. We don’t have to wear the school uniform at school.
Discuss and make rules for the computer room in your school.
Computer Room Rules
_______________
_______________
_______________
________________
________________
Discussion
Summary
祈使句和情态动词must, can 及 have to 表达规章制度.
① Don’t …
② … can’t …
③ … have to …
④ … must …
⑤ … can …
单项选择。
1. ______ with fire. It’s very dangerous. A. Playing B. Play
C. Don’t play D. Doesn’t play 2.The children _____ play football on the road. A. can B. must C. mustn’t D. may
Exercise
3.My sister ______ be at school by seven o’clock. A. has to B. have to
C. had to D. must to
4. It’s raining all day, so my brother ______ stay at
home. A. must B. have to C. must to D. has to
5. It’s very warm outside. You ______ wear the coat.
A. have to B. hadn’t to
C. don’t have to D. mustn’t
6.Mary, ______ in bed.
A. not read B. don’t read
C. no reading D. doesn’t read
Homework
1. Remember the sentences in the
Grammar Focus.
2. Write five rules in your family.
3. Preview the new words and expressions.
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Unit 4 Don’t eat in class.
Section A (Grammar focus-3c)练习
Ⅰ.根据句意及汉语提示填写单词。
1.Jane is ________(在外面) now.
2. Jack has to ________(穿) his school uniform at school.
3．It's ________(重要的) to learn English well.
4．What do I need to ________(带来) to the party
5．The library is very ________(安静的)．
Ⅱ.用括号内所给单词的适当形式填空。
6．_______(not be) late for class.
7．He ________(have) to read English every morning.
8．Do you have to ________(wear) school uniforms every day
9．Tony ________(not have) to school every day.
10．Please ________(be) quiet in the library.
Ⅲ.单项选择。
( )11. I need to wear sports shoes _______ school days.
A. for B. at C. on D. in
( )12. —Let's go to the _______ to have lunch.
—I'm afraid I can't. I will eat outside.
A. library B. club C. computer room D. dining hall
( )13. _______ me. I have some good things to tell you.
A. Talk to B. Talks to C. Listen to D. Listens to
( )14. John likes _______ and he has lots of books.
A. singing B. reading C. swimming D. dancing
( )15. —Do you _______ my phone number
—Yes, 638-2799.
A. remember B. teach C. use D. Speak
Ⅳ. 根据句意及括号内所给单词的提示填空。
16. I have to _______(go) to bed early every day.
17. Jane, don't _______(swim) in the river.
18. Please _______(bring) two small boxes to class next week.
19. Mom, can I _______(play) computer games for half an hour
20. He must _______(have) some milk at night.
Ⅴ. 根据括号内的要求完成下列各题，每空一词(含缩略形式)。
21. —Can you play basketball with me (补全肯定答语)
—Yes, _______ _______.
22. You can't go out on school nights. (改为祈使句)
_______ _______ out on school nights.
23. David has to do his homework first after school. (改为一般疑问句并作否定回答)
—_______ David _______ to do his homework first after school
—_______, _______ _______.
24. We have to have lunch at school. (对划线部分提问)
_______ _______ _______ have to _______
25. He has to clean his room every day. (改为否定句)
He _______ _______ _______ clean his room every day.
Ⅵ. 根据汉语意思完成英语句子，每空一词(含缩略形式)。
26. 我在学校必须穿校服。
I must _______ _______ _______ at school.
27. Jenny在家不得不做什么？
_______ _______ Jenny _______ _______ do at home
28. 你可以在英语课上说汉语吗？
_______ _______ _______ _______ in English class
29. 不要在教室里跑。
_______ _______ in the classroom.
30. Jim, 请向你的老师问好。
Jim, _______ _______ to your teacher, please.
参考答案：
Ⅰ.1. outside 2. wear 3. important 4. bring 5. quiet
Ⅱ.6. Don't be 7. has 8. wear 9. doesn't have 10. be
Ⅲ.11－15 BBBCD
Ⅳ.16. go 17. swim 18. bring 19. play 20. have
Ⅴ. 21. I / we can 22. Don't go
23. Does; have; No; he doesn't
24. What do you; do 25. doesn't have to
Ⅵ.1. wear a uniform
2. What does; have to
3. Can you speak Chinese
4. Don't run
5. say hello
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人教版英语学科第四单元第二课时教学设计
课题 Unit 4 Don’t eat in class. 单元 第四单元 学科 英语 年级 七年级
学习目标与核心素养 教学目标： 继续练习运用如何做自我介绍及问候他人。学会从对话中获取对方的基本信息（询问他人姓名）。 能掌握以下句型：① Don’t eat in class. ② You must be on time. ③ Eat in the dining hall.2. 继续学习使用目标语言谈论对某些规章制度（校规、家规等）的看法。
重点 1．重点单词：rule, arrive, hallway, hall, listen, fight, sorry2．重点短语：in the dining hall, listen to, on time3．重点句型：—What are the rules —Well，we can't arrive late for school.We must be on time.Don't listen to music in class.
难点 教学难点：1) 总结用祈使句、情态动词can、must及have to来表达各种规章制度；2) 能用所学的知识来制定一些简单的规章制度。
教学过程
教学过程Learning objectives1. To learn Imperatives Don’t…: Don’t run in the hallways.2. To learn to use can for permission: Can we eat in the classroom 3. To learn to use modal verbs have to & must: We have to be quiet in the library. We must be on time for class.Ⅰ. Warming up and revision1. Greet the Ss as usual. 2. Check the homework. Ⅱ. Grammar Focus. 1. 学生阅读Grammar Focus中的句子，然后做填空练习。不要在楼道里跑。_______________________不要打架。 ____________________有什么规则？ ___________________ 我们必须按时上课。 ____________________我们可以在教室里吃东西吗？____________________不能。但我们可以在餐厅里吃东西。___________________我们可以在教室里带帽子吗？____________________可以。/ 不可以。_______________________________他在学校里必须穿校服吗？_________________________________是的，必须。/ 不，不必。_______________________________你们必须做什么？ _______________________________ 在图书馆里我们必须保持安静。________________________________2. Ss finish off the sentences and check the answers by themselves. 3. Give eight more minutes for the Ss to remember the sentences. Ⅲ. Grammar其实句一般用来表示请求、命令、劝说、号召、警告等。在祈使句中， 通常省略第二人称主语you。肯定式以动词原形开头，否定式一般在动词原形前加don’t。一、祈使句的肯定式1. 以行为动词原形开头，简称Do型。 e.g. Come here. 到这儿来。2. 以动词be开头，简称Be型。 e.g. Be quiet, please. 请安静。3. 以Let开头，简称Let型。 e.g. Let’s go! 咱们走吧! 注意：有时可在祈使句的句首或句尾加上please，使语气显得客气、有礼貌。如果在句尾加please，应该用逗号与前句隔开。e.g. Go this way, please. 请这边走。二、祈使句的否定式1. Do型和Be型的否定式是在句首加don’t。 e.g. Don’t sit here. 不要坐在这儿。 Don’t be late. 别迟到。2. 以let开头的祈使句，其否定式有两种： 一种是直接在句首加don’t，另一种是 “let + 宾语 + not +动词原形+ (其他)”。 e.g. Don’t let him go. 不要让他走。 Let’s not go there. 咱们别去那儿。注意：“No+名词/动词 ing形式”表示禁止或规劝，常用于公共场所。e.g. No photos! 禁止拍照！ No smoking！ 禁止吸烟！汉译英。1) 请看图片，Jim！2) 不要在晚饭后吃冰激凌。3) 在图书馆里请保持安静。4) 对朋友们要好。5) 让我帮助你。6) 不要和你的朋友打架。Ⅳ. Writing 1. Look at 3a. Do you know the meaning of these pictures Yeah, you see them in the school library. Can you write the rules for the school library Library RulesDon’t talk.________________________________________________2. Ss discuss the pictures and make some rules.3. Let some Ss read their rules aloud. 4. Check the answers with the class. (Don't listen to music in the library. Don't eat or drink in the library. Don't take photos in the library. )Ⅴ. Practice Work on 3b:1. T: Use the words to make questions about the rules. Then write answers according to your school. For example:Be quiet (she/have to/ in the library)Does she have to be quiet in the library Yes, she does. 2. 注意： have to虽是情态动词，但其在句子中与谓语动词共同构成句子时，其一般疑问句应用助动词do或does来帮助构成；而情态动词can则直接提前构成一般疑问句式。3. Ss work by themselves and try to write the sentences on the workbook. 4. Ss work in pairs. Ask and answer the sentences. Ⅵ. Game 1. Everybody has a dream school. Suppose you're the headmaster of the Coolest School. You can make rules for your school. Make up five cool rules for your dream school. 2. Ss work in groups and discuss what rules are in their school.3. Write down their rules on the work. 4. Let some Ss read their rules aloud. 5. See whose school is the coolest
课堂小结 Summary(be) on time 准时listen to music 听音乐in the hallways 在走廊里in the dining hall 在餐厅里in class 上课；听课；在课堂上a lot of 许多；大量, have to 必须；不得不music players 音乐播放器wear the school uniform 穿校服dream school 梦想中的学校Be quiet. 安静。Don’t be late for class. 上课不许迟到。
板书 1.祈使句2．情态动词can，can't 和have to 的用法
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