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Modal Verbs of possibility
情态动词表推测
Watch and think.
Lead -in
Learning objectives
1. what modal verbs of possibility are and what their differences are.
表推测的情态动词有哪些以及它们之间的区别是什么。
01
02
2. how the modal verbs are used to make a guess.
情态动词如何用于推测。
Look and think
Anyone could be anything.
谁都能成就无限可能。
He can't be fast.
他不可能很快。
情态动词
Modal Verbs
Presentation
你还记得学过哪些情态动词呢
1. can/could;
may/might;
shall/should;
will/would;
must
2. need/dare
Presentation
review：情态动词的概念和特点
You should stay at home,instead of going to crowded areas.
If we follow the instructions strictly,we will/can be safe.
These instructions can help you protect yourself from the disease.
In short, we should be careful and not be over-panicked.
Think:
情态动词能不能单独作谓语？有没有人称的变化？
Review：情态动词的概念和特点
1.情态动词不能单独使用，必须和动词原形连用构成谓语；
2.无人称和数的变化 （have to例外，用于第三人称单数时用has to）
modal verb+verb
I can dance.
You should finish your homework.
You may have a try.
You must be tired.
You can come in now.
ability能力，
obligation义务，
advice建议，
possibility可能性
permission许可
Presentation
modal verbs of
possibility
must
may
could
might
can
mustn’t
may not
couldn’t
might not
can’t
Presentation
may not
modal verbs of
possibility
will
must
should
may
could
might
can
won’t
mustn’t
shouldn’t
may not
couldn’t
might not
can’t
Presentation
It's getting dark outside. It must be very late.
Example:
Presentation
Model
Verbs of possibility
can’t/
couldn’t
may/might/
can/could
must
100%
possible
可能
0%
不可能
100% sure
一定
impossible
=50%
Which modal verds should we choose when making a guess
Questions:
Presentation
must
我们使用 must来表明我们确信某件事是真的，并且有理由作为支持 .
He must be Lily’s father. I saw their family photos last night.
You mustn’t open that box.
Mustn’t means something is not allowed.
“禁止”
Presentation
can
may
might
could
我们使用can/may/might/
could 来表示某事有可能发生，但并不特别确定。
He can/may/might/could be Lily’s boyfriend. He is holding a bunch of roses at the gate of her company .
Presentation
can’t/
couldn’t
我们使用 can’t / couldn’t 来表达不可能发生的情况，或者表达一种你百分之百确定其并不属实的观点。
He can’t/couldn’t be Lily’s boyfriend. I know she hates him.
impossible
can’t/
couldn’t
mustn’t
100% sure
must
Presentation
Model
Verbs of possibility
can’t/
couldn’t
may/might/
can/could
must
100%
possible
可能
0%
不可能
100% sure
一定
impossible
=50%
Which modal verds should we choose when making a guess
Questions:
Presentation
1. —The paper cutting is pretty lively. Who made it
—It ________ be Mary. None of us except her is able to do it.
A．can B．must C．need D．can’t
2.—Look! That is Nancy.
—That ________ be her. She has already gone to Yunnan.
A．might B．can’t C．must D．could
B
B
云
南
6
年
真
题
Presentation
3. —I wonder where Tom is
—I am not sure. He________ be in the library.
A．might B．must C．should D．can’t
4.—The CDs ______be Bill’s. He likes music.
A．might B．can’t C．must D．could
A
C
云
南
6
年
真
题
Presentation
过去进行时
1
2
3
结构：was/were +V-ing
用法：（1）表示过去某一时刻或一段时间内正在进行的动作。
（2）表示两个动作同时发生，常与when/while 引导的时间状语从句连用。
标志词：then / at this time yesterday / at that time / at...yesterday / when ,while 引导的时间状语从句。
Summary
Game Time
Presentation
Game: Suppose you're police officer, Can you infer and find the criminal 假设你是警官，你能推断并找到罪犯吗？
开始游戏
Presentation
New clue!
The red cloth.
It must be a key clue.
Discuss:Who could be the criminal Why
weasel
hamster
I think must /could/might be the criminal because .
the hamster (仓鼠)
of its red T-shirt
Presentation
It _____ be someone sleeping.
It _____ be a pig.
Use “ must/ could/can't”
must
could
Who is the noise-maker？
It _______ be someone coughing.
can’t
Listen and Guess
Presentation
It _____ be someone watering.
It _____ be snowy.
Use “ must/ may/can't”
may
can’t
Who is the noise-maker？
It _______ be thunder and rain.
must
Listen and Guess
Presentation
It _____ be in the library.
It _____ be watch a football game.
Use “ must/ might/can't”
can’t
might
Who is the noise-maker？
Everyone _______ be cheerful.
must
Listen and Guess
Presentation
中考链接
Presentation
1. —Listen！I think it_______ be Mr.White singing in the office.
—No, it ________ be him. He left for London just now.
A．must; mustn’t B. may;mustn’t
C．must; can’t D．can; can
2.—The winner of the race is a tall and thin boy with glasses.
—Then it ________ be my friend, Mike, Who looks very fat.
A．might B．can’t C．must D．could
C
B
Presentation
3. —Where are you going this summer vacation
—I ________ go Xinjiang, but I’m not sure.
A．can’t B．must C．need D．might
4. David ________ be happy because our teacher praised him for his great progress.
A．might B．can’t C．must D．could
D
C
Presentation
5.—I saw Susan in the library just now.
—No, it _______ be her. She went to Shanghai this morning.
A. must B. can’t C. may D. needn’t
6. —Whose dictionary is this
—It _______ be Sarah’s. Look! Her name is on it.
A. must B. can’t C. may D. needn’t
B
A
Presentation
7.—Listen! The door bell is ringing. Can it be Li Ping
—It _______ be her, because she has gone to America on summer holiday.
A. must B. can’t C. may D. needn’t
8. —Look! Here is a cap. I think it is Jack’s.
—It _______ be his. Don’t you remember he never wears a cap.
A. must B. can’t C. may D. needn’t
B
B
Presentation
HOW SURE AM I
100% sure is possible
Modal
Verbs
of
Possibility
100% sure is impossible
must
can’t/couldn’t
can/could
may/might
Summary
Anyone could be anything.每个人身上都有无限可能
中考寄语
Thanks
1.完成指导丛书P86第八题；导学案上的拓展练习；
Homework
https://www.21cnjy.com/help/help_extract.php
让备课更有效
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Thanks!教学设计
课程基本信息
学科 英语 年级 九年级 学期 春季
课题 情态动词表推测（复习课）
教学目标
教学目标： 1. what modal verbs of possibility are and what their differences are. 表推测的情态动词是什么以及它们之间的区别是什么。 2. how the modal verbs are used to make speculation,or make a guess. 情态动词如何用于推测或做出猜测； 能力目标： 能够掌握情态动词在句中表推测的用法； 够掌握表推测的情态动词的不同的语气强弱程度，正确选择符合语境的表推测的情态动词； 素养目标： 通过课堂，学生掌握英语中谈论推测的表达习惯和相关礼仪加强学生的英语知识素养； 鼓励学生在实践中探索适合自己学英语的方法，提高学生的积极性，培养学生自主学习和终身学习的素养； 加强学生关心时事、学会感恩的道德素养和分析问题、解决问题的实践能力。
教学内容
教学重点： 掌握表推测的常用情态动词的用法。
教学难点： 掌握表推测的情态动词的不同的语气强弱程度，选择符合语境的表推测的情态动词。
教学过程
环节一：新课导入——视频欣赏活动1 欣赏视频：《 疯狂动物城》电影片段 引导学生思考、分析视频的两个例句。 He can't be fast. 他不可能很快。 Anyone could be anything. 谁都能成就无限可能。 3.启发学生思考：can’t 和could都是情态动词，在这里表推测，进而导入本课课题：情态动词表推测。 环节二：复习情态动词的概念和特点一、观察下列四个句子，回顾情态动词的概念和特点。 You should stay at home,instead of going to crowded areas. If we follow the instructions strictly,we will/can be safe. These instructions can help you protect yourself from the disease. In short, we should be careful and not be over-panicked. 【复习】1.情态动词不能单独使用，必须和动词原形连用构成谓语； 2.无人称和数的变化 （have to例外，用于第三人称单数时用has to） 二、情态动词的用法： 情态动词可以用来表示ability能力，obligation义务，advice建议，possibility可能性，permission许可等。 表推测的情态动词：must ,can, could, may, might, can’t,couldn’t。 一定100%：must；可能50%：can, could, may, might；不可能0%：can’t,couldn’t。 精讲。 must：We use must to show we are sure that something is true and we have reasons for our belief. eg：He must be Lily’s father. I saw their family photos last night. Mustn’t means something is not allowed. “禁止” eg：You mustn’t open that box. can/could/may/might:We use can/may/might/ could to say something is possible,but not certain. eg:He can/may/might/could be Lily’s boyfriend. He is holding a bunch of roses at the gate of her company . 3.can’t/couldn’t:We use can’t and couldn’t to express impossible or an opinion that you are 100% sure is not true. eg: He can’t/couldn’t be Lily’s boyfriend. I know she hates him.环节三：练习巩固 Who is the nose-maker 听三段录音，猜测是谁发出的声音 It must be someone sleeping. It could be a pig. It can’t be someone coughing. It may be someone watering. It can’t be snowy. It must be thunder and rain. It can’t be in the library. It might be watch a football game. Everyone must be cheerful 环节四：玄机妙算——警官游戏Game: Suppose you're police officer, Can you infer and find the criminal 假设你是警官，你能推断并找到罪犯吗？ It must be a key clue. Discuss:Who could be the criminal Why I think the hamster (仓鼠) must/could/might be the criminal because of its red T-shirt .环节五：知识整理——总结活动5 Summary 情态动词表推测：must,can,could ,may, might, can’t, couldn’t.

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