(共52张PPT)
Unit 4 Don’t eat in class.
Section A 2d＆GF-3c
人教新目标版 七年级下册
主讲人：XXX
CONTENTS
目录
01
Review
03
Grammar
05
Summary
07
Homework
02
Presentation
04
Practice
06
Exercises
08
Learning ability
Language competence
Cultural awareness
Thinking quality
Learning objectives
复习目标句型，通过情景化的体验,能运用祈使句和情态动词谈论校规, 提升语言表达能力。
通过语法填空和观察句型,能够对语法规律进行总结,提高理解能力和归纳总结能力,能够运用can, can’t, have to/ must 表达规则制度。
通过观察、归纳等课堂活动，探究语法的语言规律,思考如何运用语法结构帮助我们提高英语的听、说、读、写的能力。
通过目标词汇和语言的学习，能够了解中西方不同的规章制度，体验中西方文化的差异。
Part. 01
Review
Review
What rules are these students breaking
Don’t arrive late for class.
You must be on time.
Can we _______________class
arrive late for
No, we can’t. We must __________.
be on time
Review
What rules are these students breaking
Don’t run in the hallways.
Can we run _______________
No, we can’t.
in the hallways
Review
What rules are these students breaking
Don’t eat in the classroom.
You must eat in the dining hall.
Can we eat _______________
No, we can’t, but we can eat ________________.
in the classroom
in the dining hall
Review
What rules are these students breaking
Don’t listen to music in class.
Can we ________ music in class
listen to
No, we can’t.
Review
What rules are these students breaking
Don’t fight with your classmates.
Can we _________ classmates
No, we can’t.
fight with
Part. 02
Presentation
John is a new student. Alice is John's classmate. If you are John and Alice, what do you think you will talk about when you meet first
Let’s listen.
What rules does the school have Dos 1. We have to____________________.
2. We have to__________in the library.
Don'ts 1. Don’t _________for class.
2. Don’t bring____________ to school.
wear the school uniform
be quiet
be late
music players
Listen and read.
John: Hi, my name’s John. It’s my first day at school.
Alice: Hi, John. I’m Alice. This is a great school, but there are a lot
of rules.
John: Really What are some of the rules
Alice: Well, don’t be late for class. This is very important.
John: OK, so we must be on time. Can we bring music players to school
Alice: No, we can’t. And we always have to wear the school uniform.
John: I see.
Alice: Oh, and we also have to be quiet in the library.
/ m p (r)tnt/ adj. 重要的
/br / v. 带来；取来
/ ju n f (r)m/ n. 校服；制服
必须；不得不
/ kwa t /adj. 安静的
按时
John: Hi, my name’s John. It’s my first day at school.
Alice: Hi, John. I’m Alice. This is a great school, but there are a lot of rules.
John: Really What are some of the rules
Alice: Well, don’t be late for class. This is very important.
John: OK, so we must be on time. Can we bring music players to school
Alice: No, we can’t. And we always have to wear the school uniform.
John: I see.
Alice: Oh, and we also have to be quiet in the library.
Can you find out the model verbs
must表示主观意愿，必须
can表示许可
have to表示客观意愿，不得不
.
.
.
.
情态动词+v.原
Read and role-play the conversation.
2d
John: Hi, my name’s John. It’s my first day at school.
Alice: Hi, John. I’m Alice. This is a great school, but there are a lot
of rules.
John: Really What are some of the rules
Alice: Well, don’t be late for class. This is very important.
John: OK, so we must be on time. Can we bring music players to school
Alice: No, we can’t. And we always have to wear the school uniform.
John: I see.
Alice: Oh, and we also have to be quiet in the library.
Part. 03
Grammar
Grammar focus
Grammar Focus
Let’s read and translate these sentences.
Don’t run in the hallways. Don’t fight.
What are the rules We must be on time for class.
Can we eat in the classroom No, we can’t, but we can eat in the dining hall.
Can we wear a hat in class Yes, we can./No, we can’t.
Does he have to wear a uniform at school Yes, he does./No, he doesn’t.
What do you have to do We have to be quiet in the library.
Fill in the blanks according to grammar focus.
1. 不要在走廊里跑.
______ ______ in the hallways.
2. 不要打架。
______ ______.
3. 规则是什么？
______ are the ______
4. 我们必须准时上课。
We ______ ______ ______ ______ for class.
5. 我们可以在教室里吃饭吗？
______ we ______ in the classroom
6. 不，我们不能，但我们可以在餐厅吃饭。
No, we ______, but we can eat ______ ______ ______ ______.
Don’t run
Don’t fight
What rules
must be on time
Can eat
can’t
in the dining hall
Fill in the blanks according to grammar focus.
7. 我们能在课堂上戴帽子吗？
______ we ______ a hat in class
8. 是的, 我们能/不, 我们不能。
Yes, we ______./No, we ______.
9. 他在学校不得不穿制服吗？
______ he ______ ______ ______ a _______ at school
10. 是的, 他穿/不, 他不穿。
Yes, he ______./No, he ______.
11. 你不得不做什么？
What ______ you ______ ______ do
12. 我们不得不在图书馆里保持安静。
We ______ ______ ______ ______ in the library.
Can wear
can can’t
Does have to wear uniform
does doesn’t
do have to
have to be quiet
Don’t run in the hallways. Don’t fight.
What are the rules We must be on time for class.
Can we eat in the classroom No, we can’t, but we can eat in the dining hall.
Can we wear a hat in class Yes, we can./No, we can’t.
Does he have to wear a uniform at school Yes, he does./No, he doesn’t.
What do you have to do We have to be quiet in the library.
Grammar focus
Grammar Focus
Let’s read and answer the questions.
1：祈使句的否定句怎样构成？肯定句呢？一般在什么情况下会用祈使句？
2：情态动词在用法上有什么共同点？
3：can在本单元主要表示什么含义？它还可表达什么意思？
4：have to在句法上与其他情态动词有何区别？
Grammar focus
Grammar Focus
Read the following sentences and find out the grammar.
Don’t run in the hallways. Don’t fight.
What are the rules We must be on time for class.
Can we eat in the classroom No, we can’t, but we can eat in
the dining hall.
Can we wear a hat in class Yes, we can./No, we can’t.
Does he have to wear a uniform at school Yes, he does./No, he doesn’t.
What do you have to do We have to be quiet in the library.
祈使句的否定句怎样构成？肯定句呢？
祈使句的否定句在动词原形前加don’t，表示“不要做什么事”。
祈使句的肯定句通常是以动词原形开头的。
Grammar focus
Grammar Focus
Read the following sentences and find out the grammar.
Don’t run in the hallways. Don’t fight.
What are the rules We must be on time for class.
Can we eat in the classroom No, we can’t, but we can eat in
the dining hall.
Can we wear a hat in class Yes, we can./No, we can’t.
Does he have to wear a uniform at school Yes, he does./No, he doesn’t.
What do you have to do We have to be quiet in the library.
一般在什么情况下会用祈使句？
祈使句一般用于上级对下级，长辈对晚辈之间，表示命令、劝说或警告，也可表示请求。
Grammar focus
Grammar Focus
Read the following sentences and find out the grammar.
Don’t run in the hallways. Don’t fight.
What are the rules We must be on time for class.
Can we eat in the classroom No, we can’t, but we can eat in
the dining hall.
Can we wear a hat in class Yes, we can./No, we can’t.
Does he have to wear a uniform at school Yes, he does./No, he doesn’t.
What do you have to do We have to be quiet in the library.
情态动词在用法上有什么共同点？
can, must, have to后接动词原形。
Grammar focus
Grammar Focus
Read the following sentences and find out the grammar.
Don’t run in the hallways. Don’t fight.
What are the rules We must be on time for class.
Can we eat in the classroom No, we can’t, but we can eat in
the dining hall.
Can we wear a hat in class Yes, we can./No, we can’t.
Does he have to wear a uniform at school Yes, he does./No, he doesn’t.
What do you have to do We have to be quiet in the library.
can在本单元主要表示什么含义？它还可表达什么意思？
can的意思是 “能够;允许”, 还可表示“能力” 。
Grammar focus
Grammar Focus
Read the following sentences and find out the grammar.
Don’t run in the hallways. Don’t fight.
What are the rules We must be on time for class.
Can we eat in the classroom No, we can’t, but we can eat in
the dining hall.
Can we wear a hat in class Yes, we can./No, we can’t.
Does he have to wear a uniform at school Yes, he does./No, he doesn’t.
What do you have to do We have to be quiet in the library.
have to在句法上与其他情态动词有何区别？
have to有人称和数的变化 。
祈使句的用法
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，可以在句首或句尾加上please。句末用please时，前面通常加逗号。
语法概述
Do 型祈使句的构成
肯定句：__________ (+宾语)+其他.
否定句：______+动词原形 (+宾语) +其他.
如：上学日请穿校服。
Wear the school uniform on weekdays, please.
Don’t watch TV before dinner.
晚饭前不要看电视。
动词原形
Don’t
Be 型祈使句的构成
肯定句：____+表语+其他.
否定句：______+be+表语 +其他.
如：下次要细心。
Be careful next time.
上学不要迟到!
Don’t be late for school!
Be
Don’t
Let 型祈使句的构成
肯定句：_____+宾语+_________+其他.
否定句：______+let+宾语+动词原形+其他.
或Let+宾语+______+动词原形+其他.
如：咱们休息一下吧。
Let’s have a rest.
不要让他去游泳。
Don’t let him go swimming.
=Let him not go swimming.
Let
动词原形
Don’t
not
其他类型的否定祈使句
(1) No+v-ing! / No+名词!
禁止钓鱼!
禁止停车!
如：禁止拍照!
No fishing!
No parking!
No photos!
如：决不放弃!
Never give up!
(2) never 代替don’t 来加强语气。
情态动词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+__________
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
have to强调因客观因素影响而不得不做某事，跟主观意愿无关，通常上下文中会有暗示客观因素的句子，多译为“不得不”。
可用于不同的时态，有人称和数的变化，其一般现在时的第三人称单数形式为has to；过去式为had to。
如：What do you have to do
We have to be quiet in the library.
Do you have to be quiet in the library
Yes, we do. / No.we don’t.
如：What does she have to wear at school
She has to wear a school uniform at school
Does she have to wear a uniform at school
Yes, she does. /No, she doesn’t.
情态动词have to与must
二者均可表示“必须”，其后均接动词原形。
如：太晚了，我必须乘出租车。
It’s too late. I have to take a taxi.
I must go now.
我必须现在就走。
have to与must的不同点
have to 1. 强调因客观因素影响而不得不做某事，跟主观意愿无关，通常上下文中会有暗示客观因素的句子，多译为“不得不”。
2. 可用于不同的时态，有人称和数的变化，其一般现在时的第三人称单数形式为has to；过去式为had to。
must 1. 表示因主观需要或责任感的驱使而有必要或义务去做某事，多译为“必须”。
2. 一般只用来表示现在，没有人称和数的变化。
如：因为家里穷，他不得不退学。
He has to leave school because his family is poor.
(受客观因素影响)
关于这件事我们必须做点什么。
We must do something about it.
(责任感的驱使)
【拓展延伸】以must开头的一般疑问句的肯定回答用must，否定回答用needn’t或don’t have to。
如：—Must I leave now 我现在必须离开吗？
—Yes, you must./No, you needn’t (don’t have to).
是的，你必须。/不，你不必。
Part. 04
Practice
1
2
3
4
3a
Write the rules for the school library.
Library Rules
1. ____________________________
2. ____________________________
3. ____________________________
4. ____________________________
Don’t talk.
Don’t eat in the library.
Don’t listen to music in the library.
Don’t take photos in the library.
There are many kinds of rules in our life, like school rules, library rules. What other kind of rules do you know
Use the words to make questions about the rules. Then write answers according to your school.
3b
Q: Does she have to be quiet in the library (she/have to/in the library)
A: Yes, she does.
Be quiet
Does he have to eat in the dinning hall
Yes, he does.
Eat
Q:__________________________________ (he/have to/in the dining hall)
A:__________________________________
Q:_________________________________(we/can/in the hallways)
A:_________________________________
Listen to music
Can we listen to music in the hallways
No, we can’t.
Wear a hat
Q:_________________________________(we/can/in the classroom)
A:_________________________________
Can we wear a hat in the classroom
No, we can’t.
Use the words to make questions about the rules. Then write answers according to your school.
3b
If you are the headmaster(校长), what rules do you want to have Discuss in groups!
Group work.
classes;
teachers;
facilities学校设施(playground,cinema,swimming pool...);
the dining hall;
after-school activities;
Give Report
Give a report.
________________________________________________________________________________________________________________________________________________________
Report like this：
In my dream school, there are only 20 students in one class. And we don't have to come to school on weekends. There is a cinema. We can see films on Friday afternoon...
Nothing can be accomplished without norms or standards!
没有规矩不成方圆
Part. 05
Summary
Summary
Do型：动词原形+（宾语）+其他.
肯定结构
否定结构
Be型：Be+表语+其他成分.
Let型：Let+宾语+动词原形+其他.
Don’t型：Don’t+动词原形+（宾语）+其他.
Don’t+Be+表语+其他成分.
Don’t+Let+宾语+动词原形+其他.
Let+宾语+not+动词原形+(其他)。
Please型：Please+动词原形+其他.
动词原形+其他, Please.
No型：No+名词
祈使句
Part. 06
Exercise
一、单项选择。
1. David, _______ make trouble at school.
A. can’t B. don’t C. doesn’t
2. —Mom, can I play computer games this evening
—_______ your homework first, and then we’ll talk about it.
A. Finishing B. Finish C. To finish D. Finished
3. Buses _______ stop when the traffic lights turn red.
A. can B. may C. must
4. We should keep quiet in the library. We _____ speak loudly( 大声地).
A. must B. mustn’t C. can D. needn’t
5. I _____ go now, or I’ll miss my train.
A. can B. might C. must D. could
6. He _____ stay at home, because it’s raining outside.
A. have to B. has to C. must D. can’t
二、用括号中所给词的适当形式填空。
__________ (not put) your book here.
John _____ (have) to ______ (wear) sports shoes in P.E. class.
Don’t take ________ (photo) here and there.
Does he have to ____ (is) quiet in the library
Let’s _____ (eat) in the dining hall.
Don’t put
has wear
photos
be
eat
三、按要求完成句子。
1. Talk in class. (改为否定句)
______ ______ in class.
2. I have to do my homework after school. (对画线部分提问)
______ ______ you ______ ______ ______ after school
3. We have to listen to the teacher. (改为一般疑问句并作肯定回答)
______ we ______ ______ listen to the teacher
______, we ______.
4. She has to wear the uniform at school. (改一般疑问句，并肯定回答)
_____ she _____ to wear the uniform at school
_____, she _____.
5. We can run in the hallways. (改为否定句)
We _____ run in the hallways.
Don’t
talk
Do
have to
What
do
have to do
Yes
do
Yes does
Does have
can’t
四、根据汉语意思完成下列英文句子。
1.我们必须按时上课。
We must ________ class ________.
2.我们可以在课堂上戴帽子吗
Can we ____________________
3.在学校他必须穿校服吗
Does he ____________ a uniform at school
4.你必须做什么
What ________ you ________ do
5.我们必须在图书馆保持安静。
We ________________ in the library.
have on time
wear a hat in class
have to wear
do have to
must keep quiet
Part. 07
Homework
1.Write down ten sentences about what you can or can’t do in yourhouse.
2.Do the exercises in students’ book.
3.Preview (Section B 1a-1d).
谢谢
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