Unit 8 It must belong to Carla. Section A Grammar Focus&4a-4c 课件16张

(共16张PPT)
Unit 8 It must belong to Carla.
Grammar Focus
4a-4c
Who is the big detective
One day，Liming and his friends were playing on the playingground, suddenly he found a school uniform. But he didn't know whose it belongs to. Can you help Liming to find out the owner of the uniform according to the information and pictures？Here are the things and information Liming has found from the uniform:
size: XXL
An Id card: 15 years old
dirty
Please make your inference.
It must be......
It might/could /may be.....
It can't be.......
Review
Translate the phrases.
outside the window have fun
next-door neighbor
at first
run away
feel uneasy
have no idea
have fun (in) doing sth.
在窗外
玩得高兴
隔壁邻居
最初； 首先
逃跑
心神不安
一点不知道； 没办法
做某事很愉快
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.
Let’s read and analyse
1.当must表推测时，一般只用于_____ (肯定/否定)句，意为“肯定、一定”。它的肯定程度比could, may, might _____ (大/小)得多。
2.could, may与_____均可表示把握性不大的推测，意为“可能、也许”。
3.表示否定推测时常用_____，意为“不可能”。切记不要用mustn’t。
肯定
大
might
can’t
Let’s fill
情态动词 must, might, could, can’t 后接动词原形, 可以表示对现在的情况的________ .
推测
Let’s summary
Learn to make inference
情态动词 含义 句式 用法
must 一定；肯定（100%） 肯定句 表示有根据的推论，语气肯定
could/might/may 可能（20%-80%） 肯定句 一种可能性，语气稍弱，不那么肯定
can’t 不可能 （0%） 否定句 表示否定的可能性
情态动词表示推测的用法：
实验室
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.
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.
Choose the best way to complete each sentence using the words in blanks.
4a
might be
must be
could be
can’t be
must be/could be
Let’s practice
户外
Let’s complete
1. A: Many people are wearing coats.
B: The weather must be________ .
2. A: Sally has been coughing a lot(咳嗽得厉害).
B: She might be_______ .
3.A: This restaurant is always crowded.
B: The food _____________ .
4. A: Whenever I try to read this book, I feel sleepy（瞌睡的）.
B: It can’t ________________.
n. 外套
Here is a picture of a room. Do you know the person who lives here？ Is it a boy or a girl What are his/her hobbies
Let's discuss
Let’s discuss
Age(young/old)
Sex(a boy/girl)
Hobbies
...
Job
The room is very tidy and I can see some books and pens, so I think the room might belong to a student or the person may like reading books...
中考链接
用情态动词的正确形式填空
After a long walk, you ______ feel tired.
The man ______ be Mr. Li. He went to HK yesterday.
My mom go the visit grandpa. I am not sure of it.
The note book ______ be Mary’s because it has her name on it.
must
can’t
may/might/ could
must
中考链接
1. — Who’s singing in the next room
— It ____ be her. She has gone to New York.
A. can’t B. must C. shouldn’t D. can
2. — Where are you going this month
— We______ go to Xiamen, but we're not sure.
A. needn’t B. must C. might D. mustn't
3. —Whose T - shirt is this
—It ______ be John' s. It’s ______ small for him.
A. can't; much too
B. can't; too much
C. mustn't; much too
D. mustn't; too much
Summary
情态动词表推测
主要有must, can /could, may /might等。
肯定推测：
must, can / could, may / might都可以表示肯定推测。must 表示把握性极强的推测，意为“肯定、一定”；can / could和 may / might表示把握性不大的推测，意为“也许、可能”。
否定推测：
can’t 意为“不可能”，表示很有把握的否定推测，may not意为“可能不”，表示把握性不太大的否定推测。
Summary
情态动词
表推测
否定句
疑问句
肯定句
结构：
对现在
对正在进行
对过去
时态：
can 不肯，
may 不问，
must 肯定不否问
情态动词+动原
情态动词+ be+doing
情态动词+have done
Homework
Level A: Recite the grammar focus and finish the exercise book.
Level B: Translate the grammar focus into Chinese and finish the exercise book.