资源简介

(共20张PPT)
4
Unit
Helping out
Grammar
In this class,
we will
learn and summarize the grammar rules of modals: must, may/might, can/could.
work in pairs to design a "help plan" (who/ why/what to help) using target language.
use must/may/can correctly in sentences and dialogues.









Fill in the blanks according to Leah's story.
1. Crayons may ____________ and ______________, so they can only be used once.
2. It can be boring to __________ X-rays and treatments in the hospital.
3. Leah must __________ other young patients a lot.
4. Could Leah __________________ for 500 boxes of crayons
5. It might ________________, but Leah did it.
carry viruses
spread diseases
wait for
care about
raise enough money
sound impossible
这些情态动词分别表示什么？
may/might表示可能
can/could/must表示推测
(a) Well, crayons may carry viruses and spread diseases.
(b) It can be boring to wait for X-rays and treatments.
(c) There must be something for me to do.
5
Read the sentences from the reading passage and summarise the grammar rules.
can/must表示推测
may表示可能
P55
may/might表示可能
① He might know the answer.
② Look at the dark clouds. It may rain later.
③ We may/might not visit the city.
看这些乌云，待会儿可能下雨。
当我们想表达可能发生某事以及某人可能做某事时，可以用情态动词may/might来表示。
他可能知道答案。
我们可能不会去那个城市。
might 与 may 没有太大的区别，形式上 might 是 may 的过去式，但在表示将来的可能情况时，两者都可使用，且might 表示的可能性比 may 表示的可能性要小。
情态动词一般无人称和数的变化，后需接动词原形。
情态动词否定式是在动词后面加not。
① Is it possible to visit Alaska in December
② It is possible that it will snow in the night.
③ It will probably be cold and wet.
天气很可能会又冷又湿。
夜里有可能会下雪。
12月份去阿拉斯加旅游有可能吗？
英语中表示可能的方式很多，除使用情态动词may/might以外，还可以通过will以及表示“可能” 的形容词和副词表达，常用的有：
1. It is possible to do something
2. It is possible that...
3. 主语 + will probably/possibly + v.
probably表示“很可能”，所表示的可能性比possibly要大。
can/could表示推测
① Jack could be in pain.
② Can/Could this be true
③ It can't be Dad. He won't be back now.
can 和 could 表示对现在或将来的推测，意为 “会，可能”。can表示推测时，往往用于否定句和疑问句。could则可用于肯定句、否定句和疑问句。
用于疑问句时，can比could表示的“可能性”要大。
用于否定句时，cannot (can't) 表示“不可能”。
杰克可能很疼。
这有可能是真的吗
不可能是爸爸。他现在不会回来。
① Millie can play the piano.
② Could you speak English at the age of six
③ Can/Could you pass me the books
can、could表示“能够、可以”。
米莉会弹钢琴。
你六岁的时候会说英语吗？
你可以给我递一下那些书吗？
must表示推测
① You must be tired after such a long journey.
② My mother must be watering the flowers in the garden now.
情态动词 must 表示有把握的猜测，意为“一定，准是”，通常只用于肯定句。
经过这么长的路程，你想必累了。
我妈妈现在一定在花园里浇花。
否定形式 must not (mustn't) 表示“不能”或“禁止”的意思，不表示推测。
① We must find a good method to learn computer well.
② You must remember what I said to you. It's very important.
must表示“必须”。
我们必须找一个学好电脑的方法。
你一定记得我对你说的话。这非常重要。
请仔细对比下列一组句子：
① Who sent the present Can it be your brother
② It must be your brother. I saw him in your room just now.
③ It can't be my brother. He is still in France.
询问可能性
语气强烈，表示非常肯定
表示不可能
是谁送来的礼物啊？会是你哥哥吗？
肯定是你哥哥，我刚才看见他在你的房间里。
不可能是我哥哥，他还在法国呢。
Complete the sentences with must, may or can.
6
1 You ______ be thirsty now after the long run. Here is a bottle of water for you.
2 You didn’t bring an umbrella Take mine. It ______ rain later.
3. Here is my notebook. You ______ return it after the exam.
must
may
can
P55
Look at the pictures and complete the dialogues with the correct form of the modal verbs.
7
Dialogue 1
A: Look at that man! It ______ be hard for him to carry all the boxes!
B: Let’s give him a hand.
Dialogue 2
A: That woman looks lost. She _________ need help.
B: Yes. We _________ go and ask her.
Dialogue 3
A: Is that Lily over there
B: It ______ be her. She has the flu and has to stay at home.
A: That’s too bad. The lesson today is really important.
B: Don’t worry. We __________ share our notes with her.
P55
must
may/might
can/could
can’t
could
Work in pairs. Discuss things to do to help people around you. Use the words and expressions from the reading passage and the Useful expressions to help you.
8
P56
A helping hand
Who needs your help
What can you do to help
Why do they need help
Useful expressions
... may find it a challenge to...
... need a helping hand.
Perhaps I can / could...
... to help... get through...
There must be something for me to do, such as...
A helping hand
Who needs your help
What can you do to help
Why do they need help
Lin Peng needs our help.
He finds it a challenge to prepare the English presentation and may feel nervous about it.
We can help him find some presentation material. We can also help him practise public speaking.
Student 1: Do you have time after school today
Student 2: Yes, I do. What's up
Student 1: Well, it's about Lin Peng. He needs some help with his homework.
Student 2: What's the matter
Student 1: He finds it a challenge to prepare the English presentation. He may also feel nervous about it. Perhaps we could help him find some material.
Student 2: No problem. And we can also help him practise public speaking.
Student 1: OK, then. I'll let him know. He must feel happy with our help.
单项选择。
1. —I’ve heard Lucy will join the art club.
—It ______ be true. She’s already in the basketball club. We can only choose one. [2025年 成都]
A. should B. can’t C. must
2. The water bottle ______ be Mr. Liu's. The name on the bottle isn't his. [2025年 长春]
A. must B. may C. mustn't D. can't
直击中考
翻译划线部分。
1. “It might be the smallest library in the world,” said Xu Dawei, the owner. [2025年 安徽]
2. “It must be superglue. Haven’t I told you not to touch the dirty things ” Mrs. Wormwood said. [2024年 苏州]
3. You might start falling behind and your grades might get lower. [2024年6月 河南]
这或许是世界上最小的图书馆。
这肯定是强力胶。
你可能会开始掉队，成绩也可能会下滑。
1. 她这个周日可能会和我们一起野餐。（may）
______________________________________________
2. 窗户是开着的，妈妈一定忘记关了。（must）
______________________________________________
3. 这个消息不可能是真的，他昨天还在这儿呢。（can’t）
______________________________________________
4. 这道题太难了，我可能做不出来。（might）
______________________________________________
______________________________________________
5. 这本书上有你的名字，一定是你的。（must）
______________________________________________
She may join us for the picnic this Sunday.
The window is open. Mom must forget to close it.
This news can’t be true—he was still here yesterday.
This problem is too difficult. I might not be able to work it out.
This book has your name on it. It must be yours.
1. Can you understand the use of modals: must, may/might, can/could
2. Can you work in pairs to finish the "help plan" (who/why/what)
Must do:
Choose a dialogue from Exercise 7 and add more sentences using must/may/can.
Choose to do:
Ask your friends "What do you think you might need help with this week " and write their answers using must/may/can.

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