Unit 4 Don't eat in class. Section A (2a~2d) 课件（29张PPT） 2023-2024学年人教版英语七年级下册

(共29张PPT)
Unit 4
Don’t eat in class.
Section A (2a~2d)
新课导入
Free Talk
看图说话
A: Can we arrive late for class
B: No, we can’t. We can’t arrive
late for class.
A: _____________________________
B: _____________________________
A: _____________________________
B: _____________________________
Can we wear a hat in the classroom
No, we can’t.
Can we play soccer in the classroom
No, we can’t. But we can play it outside.
1
2
能熟记并能正确运用本课时的重点单词和短语
能掌握must与have to的用法与区别
3
能正确运用can、can’t谈论身边的规章制度，
并发表自己的看法与观点
预习检测
1. Her bike is broken (坏了). She ______walk to school.
A.have to　　 B.has to C.has D.have
2. Remember (记住) to ______ the book here next time.
A.bring B.take C.ride D.eat
3. I am in a jacket today. But he says we have to _______
uniforms at school.
A. wear B. put on C. dress D. have in
B
A
A
4. — Do you have to cook dinner for your father
— ___________. Because he is too busy to cook dinner.
A.No, I can’t B.No, I don’t
C.Yes, I have D.Yes, I do
5.Daisy has to ___________ the classroom after school.
A.cleans B.cleaned
C.cleaning D.clean
D
D
Language points
1. wear a hat 戴帽子
wear v. 穿；戴
e.g.The girl often wears a red coat and a white hat.
这个女孩经常穿着红色的上衣戴着白色的帽子。
知识梳理
Language points
wear 强调“穿着”这一状态，也可表示“戴着”。e.g. She likes wearing colorful clothes.
她喜欢穿着颜色鲜艳的衣服。
dress 既可表示动作，又可表示状态，常由人作宾语，意为“给……穿衣服”。
e.g. Could you dress the child for me 　
你能不能替我给小孩穿上衣服
【辨析】wear, dress 与 put on
Language points
a. 当表示自己穿衣服时，一般用“get dressed (= dress oneself)”.
e.g. He cannot get dressed( = himself).
他不会自己穿衣服。
b. 当dress表示状态时，一般要用“be dressed in”的形式。
e.g. She is dressed in a red coat.
她穿着一件红色的上衣。
Language points
put on 着重于“穿”这一动作，即由没穿到穿
这一过程的完成，意为“穿上”。
e.g. Please put on your new coat.
请穿上你的新大衣。
Language points
2. Can we bring music players to school
我们能把音乐播放机带到学校来吗？
bring v. 带来；取来
e.g. Can you bring me an English dictionary
你能给我带来一本英语字典吗？
Language points
【辨析】bring 与 take
Bring your homework here, and take the book away.
把你的作业拿过来，把这本书带走。
bring 指往里带，而take 则指往外带。
探究一
用can和can’t谈论规章制度
Can you …
Listen to music in the classroom.
Eat in the classroom.
We can’t listen to music in the classroom.
We can eat in the dining hall.
2a Listen. Check (√) the activities Alan and Cindy talk about.
Activity
1.___ listen to music in the classroom or hallways can can’t
2.___ listen to music in the music room can can’t
3.___listen to music outside can can’t
4.___ eat in the classroom can can’t
5.___ eat in the dining hall can can’t
6.___ eat outside can can’t
7.___ wear a hat can can’t
8.___ fight can can’t
√
√
√
√
√
√
√
2b Listen again. Can Alex and Christina do these
activities Circle “can” or “can’t” above.
Activity
1.___ listen to music in the classrooms or hallways can can’t
2.___ listen to music in the music room can can’t
3.___listen to music outside can can’t
4.___ eat in the classroom can can’t
5.___ eat in the dinning hall can can’t
6.___ eat outside can can’t
7.___ wear a hat can can’t
8.___ fight can can’t
√
√
√
√
√
√
√
2c Student A is Alan. Student B is Cindy.
Talk about the rules in 2a.
Pair work
Well, we can’t listen to music in the classroom or hallways. But we can listen to music in the music room.
What are the school rules, Alan
We can’t eat in the classroom, but we can eat in the dining hall.
Uh-huh.
No, we can’t. What else Oh, we can’t fight with our classmates. That makes the teachers really unhappy.
Oh, can we wear a hat in class
I see.
当堂检测见DCF课件
活动小结
通过以上活动可知，can为情态动词，在这里表示1.___________，其否定形式为2.___________，后面均使用动词3.___________。
可以
can’t
原形
探究二
2d Read and roly-play the conversation in 2d.
must与have to的用法与区别
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
我的第一天
准时的
重要的
音乐播放器
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.
保持安静的
图书馆
校服
Group work
请同学们观察下列句子，在
小组内讨论其区别和用法。
We must be on time.
We always have to wear the school uniform.
We also have to be quiet in the library.
1) must 作为情态动词，意为“必须”强调主观
上的愿望。在回答must引起的问句时，
如果是否定的答复，可用don’t have to
或 needn’t (不必) , 但不能用mustn’t (表
一定不, 必须不, 不允许, 不得) 。
2) have to意为“必须做某事”强调“客观需要”。
在变否定句和疑问句时要借助助动词 do，
does等，否定式don’t/doesn’t have to意为
不必。
小测验
It’s cold outside. We _______ stay at home.
We _________ be good with our parents.
思考并抢答。
must
have to
当堂检测见DCF课件
活动小结
通过以上的活动，我们可以知道，have to为固定短语，意为“1.____________”，强调由客观原因造成不得不去做某事，有have to和has to变化，在变否定句和疑问句时要借助助动词2.____________等，don’t/doesn’t have to意为“3.____________”；must也意为“4._______________”，强调由于主观要做某事，只用于一般现在时，5.__________人和数的变化，在一般疑问句作否定回答时要用needn’t。
不得不
do，does
不必
必须，应该，不得不
没有
当堂检测
一、根据提示完成句子。
1. _________ (not look) e in and let’s begin our class.
2. It’s raining. We ________(have to/must)stay at home.
3. ______ he ______ (have) to arrive there before ten o’clock
4. _________ (not be) late for the meeting, please.
Don’t look
Does have
Don’t be
have to
二、根据汉语提示完成下列句子。
1. 我必须在10点前上床睡觉吗？
_______ I _______ to go to bed _______ 10:00
2.课堂上，我们不能戴着帽子。
We can’t _______ _______ _______ in class.
3. 我们上学不能迟到。我们必须按时到校。
We can’t _______ _______ _______ class.
We _______be _______ _______ for class.
4. 在周末我们不必穿校服。
On weekends we don't _______ _______ wear
our _______ _______ .
Do have before
wear a hat
arrive late for
must on time
have to
school uniforms
课堂总结
用can和can't谈论规章制度
must与have to的用法与区别
Unit 4
Section A (2a~2d)