資源簡介

(共40張PPT)
Unit 6
Electricity Everywhere
下
（滬教2025版）七年級
Grammar
1
3
Presentation
Practice
5
Production
7
Summary
2
4
6
8
Learning objectives
Lead in
Assessment
Homework
By the end of the lesson, I will be able to...
1
2
Learning objectives
00
3
understand and master the usages of modal verbs:can and cannot, may and may not, must and must not;
can talk with my partner about what my robot can do;
can write and speak sentences with can and cannot, may
and may not, must and must not;
Lead in
01
Can robots dance Let's enjoy a short video clip.
Lead in
01
Q: What can you see
Q: Who do you think can
save the world ”
Free talk
Lead in
01
Lead in
01
It's lightning outside.
Daisy and her brother Benny are at home.
Daisy is telling her brother Benny about her science lesson.
Daisy
Benny
Read the dialogue and pay attention to the words in bold.
02
Presentation
02
It was great. We learnt about electricity in our science class.
Yes, of course. But you must give it back to me because it's my favourite ruler!
How was your school day, Daisy
Daisy
Benny
Can you tell me what you know about electricity
We can't see it powering everyday things but we can see it when
there is a lightning storm.
Right. Mum told me we mustn't go outdoors during a storm. It's dangerous.
Yes, that's right. However, you can produce electricity safely by
rubbing a ruler against your sweater. Look at me!
Wow. That's fun! May I try
Listen again and pay attention to
the words in red.
02
Presentation
02
It was great. We learnt about electricity in our science class.
Yes, of course. But you must give it back to me because it's my favourite ruler!
How was your school day, Daisy
Can you tell me what you know about electricity
We can't see it powering everyday things but we can see it when there is a lightning storm.
Right. Mum told me we mustn't go outdoors during a storm. It's dangerous.
Yes, that's right. However, you can produce electricity safely by
rubbing a ruler against your sweater. Look at me!
Wow. That's fun! May I try
Please summarize the modal verbs in this dialogue.
can，can't，must，mustn't，may
can and cannot, may and may not, must and must not
02
Presentation
02
Modal verbs can be used to talk about ability, permission, obligation, etc.
Modal verbs
情態動詞
obligation
n. 義務，責任
[ bl ɡe ( )n]
permission
n. 同意；許可
[p m ( )n]
ability
n. 能力；才能；本領
[ b l ti]
Modal verbs
02
Presentation
02
情態動詞不能獨立作謂語，必須和其他動詞一起構成謂語。沒有人稱和數的變化，后面必須跟動詞原形。
Let's sum up the rules!
After modal verbs such as can, may and must, we use the base
form of a verb.
We use can and cannot (can't) to say we are able or unable to do
something.
We use may and may not to ask for, give and refuse permission.
In less formal situations, some people like to use can and cannot
(can't) for the same purpose.
We use must and must not (mustn't) to tell people what to do or
what not to do.
02
Presentation
02
動詞原形
02
Presentation
02
This robot can/cannot/can't fly.
Ann could swim at the age of three.
can和cannot
can 的否定式為 cannot, 可以縮寫為 can't。
can 的過去式是 could, could not 可以縮寫為 couldn't。
（1）can表示主語具備的能力，意為“能；會”；
could表示主語過去所具備的能力。
02
Presentation
02
- Could I stay here for a moment
- Yes, you can.
（2）can表示請求或允許，意為“可以”；
could表示請求時，語氣更客氣委婉，
回答時用can。
02
Presentation
02
（3）Can 用于表示可能性，
較多用于疑問句和否定句。
Can it be Danny
It can't be Lily's bag because there is Lisa's name on it.
Modal verbs
02
Presentation
02
may 和 may not
may的否定式為 may not。
may 的過去式是might。
02
Presentation
02
（1）may 用于第一人稱表示征求對方的意見，意為“可以”，
比can更有禮貌，語氣更委婉。
肯定回答時用“Yes, you may.”；
否定回答時常用“No, you can't/mustn't.”
- May I watch TV, Mum
-Yes, you may. / No, you can't/mustn't.
02
Presentation
02
（2）may表示推測時，意為“可能；也許”。
might可作may的過去式，也可代替
may說明現在的情況，語氣比may弱。
Maybe these robots may save the world. But they may not do it alone.
Modal verbs
02
Presentation
02
must 和 must not
must 的否定式為 must not,
可以縮寫為 mustn't。
must沒有過去式。
Modal verbs
02
Presentation
02
（1）must表示“必須；應該”；
mustn't表示“不許；禁止；
絕對不可以”。
否定回答常用needn't或
don't have to。
There is a big danger. These robots must act quickly. But they must not make mistakes.
- Must they leave
-No, they needn't/ don't have to.
Modal verbs
02
Presentation
02
（2）must用于表示肯定的推測，且語氣較強，
表示說話人相信某事是事實。
There must be someone in the room,
for the light is on.
The police officer ________ (can /may)
help the robots. But he __________
(must not /can't) fight the bad guys alone.”
can
Practice
03
Complete the sentence with can, can't , may, must not.
can't
Daisy got a robot for her birthday.
Daisy: Thank you, Dad. It is the best gift in the world!
Dad: You (1) _______ name your robot now.
Daisy: I think I'll call him “Bobo”.
Dad: That's a good name.
Daisy: How (2) _______ I turn him on
Dad: First you have to put the batteries inside here. Then you (3) _______
switch it on. Now you (4) _______ talk with “Bobo”.
Bobo: Hello. Please give me a name.
can/may
Practice
03
Complete the conversation with can, can't / cannot, may, may not, must, mustn't / must not.
can
can/may
can/may
Practice
03
Complete the conversation with can, can't / cannot, may, may not, must, mustn't / must not.
Daisy: Hello. I'll name you “Bobo”.
Bobo: I love my name, thank you.
Dad: Bobo, please tell us what you (5) _______ do.
Bobo: I (6) _______ dance and sing and play football. I (7) _______ play
chess and I (8)_______ speak Chinese, English and French.
Daisy: Wow! You (9) _______ help me with my homework then.
Bobo: If you have questions, you (10) _______ ask me. But you (11)
_______ do your homework yourself.
can
can
can
can
can
can/may
must
Practice
03
Complete the conversation with can, can't / cannot, may, may not, must, mustn't / must not.
Daisy: OK. I'll go swimming in the afternoon. (12) _______ you come
with me
Bobo: Sorry. I (13) _______________ swim. I (14) _______ stay away
from water. If I get wet, I'll become ill and won't work anymore.
So you (15) ______________________________ put me in the water.
Dad: Daisy, here are the instructions for “Bobo”. You (16) _______
read them very carefully and find out what you can and (17)
_______________ do.
can
cannot/can't
must
mustn't/must not/cannot/can't
must
cannot/can't
Role play the conversations in P89-90 by using the notes above.
Student 1
Act as Dad
Act as Daisy
Student 2
Work in groups of 3.
Our group can get ______ .
Loud, fluent and correct With body language and emotions Without book
(聲音洪亮，對話流利，內容正確) （有肢體語言和感情） （脫離課本）
Practice
03
Complete the conversation with must, mustn't, can, can't, may or may not.
Sam: (1) _____________ you show me how to use this blender, please
I want to make a milkshake.
Mary: Yes, of course I (2)_____________. But first, let me tell you the
most important rules about using blenders.
Sam: OK.
Can
can
Practice
03
blender
n. 食物攪拌機
[ blend (r)]
milkshake
n. 奶昔
[ m lk e k]
Mary: First, you (3) _____________ make
sure the lid is closed before you
start it. Also, you (4)_________________
put too much stuff in it. You (5)_________
_______ fill it above this line. Alright, let's
put in two bananas and some milk.
must
can't/mustn't
can't
Practice
03
/mustn't
lid
n. 蓋子
[lid]
stuff
n. 物品
[st f]
Sam: Okay. I've closed the lid.
(6) ___________ I start it now
Mary: Yes, you (7) _____________.
Good, that's enough. Now,
you (8) __________ pour the milkshake
into a glass, but leave some for me.
Remember: you (9) _____________ unplug
the blender when you're done, and you
(10) _____________ clean it afterwards.
May/Can
may/can
can/may
must
must
Practice
03
unplug
v. 拔掉…的電源插頭
[ n pl ɡ]
Daisy is telling her little brother Benny
some dos and don'ts about school life.
Grammar in use
Dos
(1)____________________________________________
(2)____________________________________________
(3)____________________________________________
(4)____________________________________________
(5)____________________________________________
Production
04
Imagine you are Daisy.Your little brother Benny is going to primary school in the new term. You are telling him some dos and don'ts about school life. Write them down.
Grammar in use
>>>
You must be polite to your classmates and teachers.
Production
04
Grammar in use
Imagine you are Daisy.Your little brother Benny is going to primary school in the new term. You are telling him some dos and don'ts about school life. Write them down.
Don'ts
(1)____________________________________________(2)____________________________________________
(3)____________________________________________
(4)____________________________________________
(5)____________________________________________
Grammar in use
>>>
You mustn't eat in class.
Robots are good friends and assistants of human beings.
Summary
05
Modal Verbs
Summary
05
Modal Verbs
Assessment
09
Self-assessment
How well do you know about this lesson Tick (√)the boxes.
① Understand and master the usages of modal verbs:
can and cannot, may and may not, must and must not.
② I can talk with my partner about what my robot can do.
③ I can write and speak sentences with can and cannot, may
and may not, must and must not.
基礎：
根據情態動詞的基本含義和用法結構制作思維導圖。
Homework
10
提升：
小組討論，設定機器人執行任務的不同場景，運用所學情態動詞編寫對話并表演。
拓展：
觀察家用電器的英文說明書，找出3個含情態動詞的句子并在下次課上做報告。
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