資源簡介

(共37張PPT)
Modal Verbs of possibility
情態(tài)動詞表推測
Watch and think.
Lead -in
Learning objectives
1. what modal verbs of possibility are and what their differences are.
表推測的情態(tài)動詞有哪些以及它們之間的區(qū)別是什么。
01
02
2. how the modal verbs are used to make a guess.
情態(tài)動詞如何用于推測。
Look and think
Anyone could be anything.
誰都能成就無限可能。
He can't be fast.
他不可能很快。
情態(tài)動詞
Modal Verbs
Presentation
你還記得學過哪些情態(tài)動詞呢
1. can/could;
may/might;
shall/should;
will/would;
must
2. need/dare
Presentation
review：情態(tài)動詞的概念和特點
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:
情態(tài)動詞能不能單獨作謂語？有沒有人稱的變化？
Review：情態(tài)動詞的概念和特點
1.情態(tài)動詞不能單獨使用，必須和動詞原形連用構成謂語；
2.無人稱和數(shù)的變化 （have to例外，用于第三人稱單數(shù)時用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義務，
advice建議，
possibility可能性
permission許可
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
我們使用 must來表明我們確信某件事是真的，并且有理由作為支持 .
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
我們使用can/may/might/
could 來表示某事有可能發(fā)生，但并不特別確定。
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
我們使用 can’t / couldn’t 來表達不可能發(fā)生的情況，或者表達一種你百分之百確定其并不屬實的觀點。
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
題
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
題
Presentation
過去進行時
1
2
3
結構：was/were +V-ing
用法：（1）表示過去某一時刻或一段時間內正在進行的動作。
（2）表示兩個動作同時發(fā)生，常與when/while 引導的時間狀語從句連用。
標志詞：then / at this time yesterday / at that time / at...yesterday / when ,while 引導的時間狀語從句。
Summary
Game Time
Presentation
Game: Suppose you're police officer, Can you infer and find the criminal 假設你是警官，你能推斷并找到罪犯嗎？
開始游戲
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 (倉鼠)
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
中考鏈接
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.每個人身上都有無限可能
中考寄語
Thanks
1.完成指導叢書P86第八題；導學案上的拓展練習；
Homework
https://www.21cnjy.com/help/help_extract.php
讓備課更有效
www.21cnjy.com
Thanks!教學設計
課程基本信息
學科 英語 年級 九年級 學期 春季
課題 情態(tài)動詞表推測（復習課）
教學目標
教學目標： 1. what modal verbs of possibility are and what their differences are. 表推測的情態(tài)動詞是什么以及它們之間的區(qū)別是什么。 2. how the modal verbs are used to make speculation,or make a guess. 情態(tài)動詞如何用于推測或做出猜測； 能力目標： 能夠掌握情態(tài)動詞在句中表推測的用法； 夠掌握表推測的情態(tài)動詞的不同的語氣強弱程度，正確選擇符合語境的表推測的情態(tài)動詞； 素養(yǎng)目標： 通過課堂，學生掌握英語中談論推測的表達習慣和相關禮儀加強學生的英語知識素養(yǎng)； 鼓勵學生在實踐中探索適合自己學英語的方法，提高學生的積極性，培養(yǎng)學生自主學習和終身學習的素養(yǎng)； 加強學生關心時事、學會感恩的道德素養(yǎng)和分析問題、解決問題的實踐能力。
教學內容
教學重點： 掌握表推測的常用情態(tài)動詞的用法。
教學難點： 掌握表推測的情態(tài)動詞的不同的語氣強弱程度，選擇符合語境的表推測的情態(tài)動詞。
教學過程
環(huán)節(jié)一：新課導入——視頻欣賞活動1 欣賞視頻：《 瘋狂動物城》電影片段 引導學生思考、分析視頻的兩個例句。 He can't be fast. 他不可能很快。 Anyone could be anything. 誰都能成就無限可能。 3.啟發(fā)學生思考：can’t 和could都是情態(tài)動詞，在這里表推測，進而導入本課課題：情態(tài)動詞表推測。 環(huán)節(jié)二：復習情態(tài)動詞的概念和特點一、觀察下列四個句子，回顧情態(tài)動詞的概念和特點。 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. 【復習】1.情態(tài)動詞不能單獨使用，必須和動詞原形連用構成謂語； 2.無人稱和數(shù)的變化 （have to例外，用于第三人稱單數(shù)時用has to） 二、情態(tài)動詞的用法： 情態(tài)動詞可以用來表示ability能力，obligation義務，advice建議，possibility可能性，permission許可等。 表推測的情態(tài)動詞：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。 精講。 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.環(huán)節(jié)三：練習鞏固 Who is the nose-maker 聽三段錄音，猜測是誰發(fā)出的聲音 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 環(huán)節(jié)四：玄機妙算——警官游戲Game: Suppose you're police officer, Can you infer and find the criminal 假設你是警官，你能推斷并找到罪犯嗎？ It must be a key clue. Discuss:Who could be the criminal Why I think the hamster (倉鼠) must/could/might be the criminal because of its red T-shirt .環(huán)節(jié)五：知識整理——總結活動5 Summary 情態(tài)動詞表推測：must,can,could ,may, might, can’t, couldn’t.

展開更多......

收起↑