资源简介

(共49张PPT)
Unit 2 No Rules, No Order
第三课时　Section A
(Grammar Focus 3a—3d)
人教版 七年级 英语（下）
Good morning，everyone！Today we are going to learn the grammar focus part. Let's read the sentences in 3a and find out the rules of sentence patterns.
This is the Prohibitions Wall(禁令墙). Let me see how much you know about the school rules.
Look at the signs and talk about them in different ways.
Don’ t use your phone in class.
Don’ t litter.
Don’ t run in the hallways.
Don’ t talk in class.
Be quiet in class.
No phone calls.
No littering.
No running.
Ummm...Not bad, guys. If you have any suggestions about the school rules, please put them forward and perhaps I will adopt them on my wall.
what kind of interesting sentences did you notice in the video
Watch and say
...
Turn back!
Don’t be late!
Let’s go!
Just go to bed!
It must be mistake!
We have to move its paw.
I can’t cook.
Some of them sound so strong and tell us what to do right away, and some let us know what we're good at or what we have to do
祈使句&情态动词
Which sentences are imperative sentences
Which sentences contain modal verbs What are the modal verbs
Look and think
Imperative Sentences
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？
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。
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
Summary
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。
Modal Verbs
can, must, have to
1. 出现了哪些情态动词？
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。
2. 情态动词的作用
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。
3. 情态动词的特点
情态动词Can
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 Frech. 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）
情态动词Must
must表示必须。常表示说话人的主观看法，其否定形式为mustn’t.
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
have to表示不得不。常强调客观需要。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+__________
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
Must & Have to
二者均可表示“必须”，其后均接动词原形。
但是，have to 表示客观条件要求某人不得不做某事
must 表示某人主观意愿上必须或者有义务要做某事
He has to live at school because his home is far away from school. 他家离学校太远了，他不得不住校。
We must do something to protect the earth.
我们必须做点什么来保护地球。
1．—Can you speak English, Ling ling
—Yes, I ________.
A．must B．can
C．should D．may
2．Lucy is good at basketball. She ________ play basketball very well.
A．can B．can’t
C．may D．need
Exercise
B
A
B
A
3．－Mary, _________ you speak Chinese
－Yes, only a little.
A．must B．can
C．need D．should
4．Come and ________ us!
A．join B．joins
C．joining D．to join
Don’t jump the queue. You ____________ wait your turn.
Complete the sentences using can, have to/ must, or can’t/mustn’t.
have to / must
wait your turn
等待轮到你
queue n. 队
jump the queue 插队
You_______ just ask your teacher a question in class. You _____________ raise your hand first.
have to / must
can’t
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
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
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
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.
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.
In the library , we must keep quiet. We mustn’t make noise. We can’t...
library school dining hall park cinema hospital
头脑风暴
n.电影院
n.医院
制造噪音
Gruop Work
Rule - maker
Preparations：
1. Several cards with different scenarios written on them (such
as library, school dining hall, park, cinema, hospital etc.).
5.Each group sends a representative to draw a scene
card to determine the scene where they need to
make rules.
4.Divide the students into several groups, with 3 to 5 people
in each group.
2.Drawing tools, such as drawing paper, colored pens, etc.
3.A blackboard or a large screen for display.
Rules：
1. Group members use imperative sentences and modal verbs
(such as must, mustn't, can, can't, etc.) to make three rules.
For example, if “park” is drawn, the rules could be:
You mustn't pick the flowers.
3. Each group sends a representative to display the
drawn signs on the large screen and explain to the
whole class the meanings of these signs and the
corresponding rules.
2. Each group draws corresponding signs according to the rules
made. For example, for the rule "You mustn't smoke", you
can draw like this:
准备：
1.若干张写有不同场景（如公园、电影院、医院等）的卡片。
Gruop Work
规则制定者（中文版）
5.每组派代表抽取一张场景卡片，确定他们需要制定规则的场景。
2.绘画工具，如画纸、彩笔等。
3.准备展示用的黑板或大屏幕。
4.将学生分成若干小组，每组 3 - 5 人。
规则：
1.小组成员讨论并使用祈使句和情态动词（如 must, mustn't, can, can't 等）来制定三条规则。例如，如果抽到 “公园”，规则可能是：
You mustn't pick the flowers.（你不许摘花。）
2.每组根据制定的规则画出相应的标识。例如，对于 “不许抽烟” 可以画一支烟加上一个禁止符号。
3.每组派一名代表将画好的标识展示在黑板或大屏幕上，并向全班同学解释这些标识的含义和对应的规则。
Self-evaluation 自评 Peer-evaluation 同评 Teacher-evaluation
师评
Language
Pronunciation
Performance
Excellent Great Good Show Time
leave v. 离开；把......留下
leave sp.
leave for sp.
leave A for B
leave sb./ sth.
【用法】
离开某地
动身去某地（目的地）
离开A地去B地
把某人/某物落下
Can I leave the classroom if I don’t feel well (P13 3b)
1. The plane leaves for China at 12 a.m.
2. I don’t want to leave homtown.
3. We are going to leave our city for Shenzhen.
4. I left my keys on the bus.
飞机于上午12点前往中国。
我不想离开家乡。
我们将要离开我们的城市去深圳。
我把钥匙忘在公交车上了。
【翻译】
feed v. 喂养；饲养
feed...(食物)to...(动物)
feed...(人或动物)with...(食物)
feed on...
【用法】
把......喂给......吃
用......喂......
以......为食，靠......为生
（主语多为动物或婴儿）
I can feed my dog many kinds of food,... (P13 3b)
用法 例句
feed 主要强调“喂养”“给（人）”提供食物，侧重具体喂食动作。 Can you feed the cat, please
raise 当意思为“养育；抚养”时，侧重整体培育成长的过程。 They raised three children.
【辨析】feed & raise
absent adj. 缺席的；不在的
【解析】反义词为 present“出席的，在场的”。
be absent from 缺席
eg. I was absent from the meeting. 我缺席了这次会议。
【拓展】absence adj. 缺席
eg. I don’t know his absence today.
我不知道他今天缺席。
... when you have to be absent from class. (P13 3b)
一、根据句意及提示写出所缺单词或短语
1. She is __________(absence) from today’s conference.
2. Don’t stay up too late! Because you will leave ________ London early next morning.
3. It’s an important meeting. _____________ (not be) late.
4. Let’s _________ (say) something about it.
absent
for
Don’t be
say
Exercise
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
二、单项选择
必做题：
选做题：
Please have each student select a public place，
such as a park，a museum，a cinema，etc.，create three rules for that place，and write them down in English.
Design and draw a sign to display one of the rules, ensuring that the use of modal verbs is included on the sign.

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