Unit8 SectionA GrammarFocus~4c（课件）【2023-2024学年人教九全英语高效实用备课】

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人教九全英语同步精品课件
人教版九年级全一册
Unit 8
It must belong to Carla.
Section A
Grammar Focus ~ 4c
Learning Goals
Warming Up
Grammar
Summary
Exercises
1
1
2
3
4
5
通过本课的学习，学生能够：
①掌握情态动词must, could, might, can’t表示推测的不同用法。
②在真实情景中运用恰当的情态动词进行合理的推测。
Learning Goals
Warming Up
Let’s first enjoy a video.
How do you feel after watching the video
Look at the lyrics(歌词). Can you tell the meaning of “can” in them
You can be the best.
You can be a hero.
You can move a mountain.
ability
Could you sing a song for us
He can sing very well.
We must wear school uniforms every day.
Miss Yi might be nervous.
You should relax yourself.
表请求
表能力
表必须
表推测
提建议
We’ve learned a lot about modal verbs. Now let’s review some of them.
Whose volleyball is this It must be Carla’s. She loves volleyball.
Whose hair band is this It could be Mei’s hair band. Or it might belong to Linda. They both have long hair.
What did you see that night I’m not sure , but it can’t be a dog. It was bigger. I think it might be a bear or a wolf.
两人一组，针对表格左侧的三个问题，运用情态动词must, can’t, might和could 补充更多的推测。
Presentation
情态动词表示推测
1. must 表示有把握的肯定的推测的时候，只用于肯定句，意为“ 一定；肯定”。
The light is on. He must be at home now.
灯亮着呢。他肯定在家。
注意：mustn’t 表示“禁止”。
2. can和could 都可表示猜测，此时could不是can的过去式，could语气更委婉，意为“可能”。can 用于肯定句表示理论上的可能性，但实际不一定会发生；用于否定句表示有把握的推测，意为“ 不可能，一定不”。
Scotland can be very warm in September.
九月的苏格兰有时会很暖和。
I saw him at the library. He can’t be at home now.
我刚刚在图书馆看到他了。他这会儿肯定不在家。
3.may和might都可表示猜测，此时might不是may的过去式，might语气更委婉。两者都可用于肯定句或疑问句，表示把握不大的推测。
This volleyball might/may be Tom’s. He likes playing volleyball.
这个排球可能是Tom的。他喜欢打排球。
不同形式的情态动词表示不同的含义
1.“情态动词+ 动词原形”表示对目前事情的推测。
e.g. The book must be Kate’s.
这本书肯定是凯特的。
2.“情态动词+be + 现在分词”表示对正在发生的事情的推测。
e.g. She must be doing her homework at home now.
现在她一定正在家里做作业。
3.表示对过去或已完成事件的推测用“情态动词+ have done”。
e.g. He must have known the bad news.
他一定已经知道了这个坏消息。
4.“There + 情态动词+be+ 主语+ 现在分词形式”表示“可能/ 或许/ 一定有……在做……”。
e.g. It is noisy. There might be some boys playing soccer.
太吵了，可能是有些男孩在踢足球。
4a.Choose the best way to complete each sentence using the words in
brackets.
1. A: Where’s Jean
B: I’m not sure. She ________(is/might be/must be) in the laboratory.
2. A: Everyone is going to the pool after school.
B: Really It ________(must be/can’t be/could be) hot outdoors.
might be
must be
Practice
n. /l b r tri/
实验室
3. A:That’s the phone.
B:Hmm. I wonder who it ________(must be/could be/ should be)．
4. A:I wonder if these are Jim’s glasses.
B:They ________(can’t be/might be/could be) his. He doesn’t wear glasses.
5. A:I hear water running in the bathroom.
B:It ________(could be/must be/can’t be) Carla. She was thinking of taking a shower.
could be
can’t be
must be
洗淋浴
plete these responses.
1．A：Many people are wearing coats.
B：The weather must be ________.
2．A：Sally has been coughing a lot.
B：She might be ________.
3．A：This restaurant is always very crowded.
B：The food _________________.
4．A：Whenever I try to read this book, I feel sleepy.
B：It can’t ______________.
cold
ill
must be delicious
be interesting
n. /k t/
外套
adj. / sli pi/
困倦的，瞌睡的
4c.Look at this picture of a room. How much can you tell about the person who lives here Is it a boy or a girl What are his/her hobbies Discuss your ideas with a partner.
A：It could be a girl’s room because it’s very tidy.
B：I guess so. But it might be a boy’s room because the clothes look like boys’ clothes.
Production
一、单项选择
1. As a student, you ________ hand in your homework on time.
A. should B. can C. need D. might
2.The little boy got zero in this exam. His mother _______ angry when she sees the mark.
A. must be B. can’t be C. might be D. can be
A
Exercises
A
3.—Must I return the book to you now
—________, you ________. You can do it tomorrow.
A. No; needn’t B. No; mustn’t C. Yes; must D. Yes; need
4.Is this blue schoolbag Lucy’s I am not sure. It ________ be hers.
A. must B. mustn’t C. can’t D. may
5.Children ______________ be told not to swim alone in the river.
A. can B. may C. must D. might
A
D
C
二、根据汉语意思或用所给单词的正确形式填空
6.There are many ___________________ (laboratory) in our school. And the largest one was built last year.
7.Of the two ______________ (coat), Wendy will choose the cheaper one.
8.现在埃米正在洗淋浴。请一会儿再给她打电话。
Amy ______________________ now. Please call her later.
9.记住，吃了这些药片之后，你可能会犯困。
Remember that you may ____________________ after taking the pills.
10.这个男人一定在等某个人。The man _______________ for somebody.
laboratories
coats
is taking a shower
feel sleepy
must be waiting
情态动词表推测：
must: 有把握的肯定的推测，只用于肯定句。
can’t: 有把握的否定推测(注意不用mustn’t; mustn’t表禁止)。may/might/could: 把握不大的推测。
can:表示理论上的可能性，但实际不一定会发生
Summary
谢谢
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