(新课标)Unit 8 It must belong to Carla..SectionA Grammar focus-4c 课件(共21张PPT)

(共21张PPT)
Unit 8
It must belong to Carla.
Section A
Grammar focus-4c
一、教学目标
1.Master the new words and expressions;
2.Learn to make inferences by using must, might, could, can’t
3.Learn to judge and learn to be grateful.
二、教学重点
1.Master the new words and expressions;
2.Learn to make inferences by using must, might, could, can’t
三、教学难点
1.Learn to judge and learn to be grateful.
It could be_________
It also might be__________
a white vase (花瓶)
two faces
Just for fun
Can you guess what it is
[vɑ:z]
It could be________
It also might be_______
a girl
an old man
Just for fun
Can you guess what it is
It could be_________
It might also be__________
a dog
two girls
Just for fun
Can you guess what it is
What does he do
He/She might be a/an…
He/She must be a/an
Guess
What does she do
Guess
He/She might be a/an…
He/She must be a/an
What does he do
Guess
He/She might be a/an…
He/She must be a/an
情态动词表示推测
We use __________ when we are sure that something is ture because there’s very strong evidence（证据）.
We use ________________ when we think something is possible,but we are not sure.
We use ____________ when we feel sure something is not true.
100%
50%
0%
must
could/might
can’t
1. _______ volleyball is this 这是谁的排球？
It_____ _____ Carla's. She loves volleyball.
它一定是卡拉。她喜欢打排球。
2. Whose ______ _______ is this 这是谁的发带？
It _____ _____ Mei's hair band. Or it might ______ _____ Linda. They both have long hair.它可能是梅的。或者它也有可能属于琳达的，她们俩都是长发。
3. ____ ______ you see that night 你那天晚上看见什么了？
I’m not sure. but it _____ ____ a dog. It was bigger.
I think It _____ _____ a bear or a wolf.
我不确定。但它不可能是一只狗。它要大些。我想它有可是一只熊或者一只狼。
Whose
must be
hair band
could be
belong to
grammer focus
What did
can't be
might be
Grammar: 情态动词表推测
1.肯定句：
肯定的推测：must一定/必定（100%）
不肯定推测(可能性减弱):could＞may＞might20%-80%
很可能 可能 或许/大概
2.否定句：
否定的推测：can't 肯定不可能（0%）
否定不确定推测(可能性依次减弱)：may not＞might not
不可能
Practice
1.—Excuse me, whose book is this
—It＿＿be John’s. It has his name on it.
　A. must　 B. need　 C. can’t D.could
2.The man____be my English teacher. He has gone to Canada.
　A. might　 B. must　 C. can’t D.can
3.After a long walk, the old man＿＿be tired now.
A. can’t B. must C. has to D. need
A
证据
C
证据
B
证据
4.—I think the girl under the tree must be Alice.
—No, it＿＿be her. She’s in the gym now.
　A.can’t B.mustn’t C.may D.must
5.Martin＿＿get here in time, but I am not sure.
　A.must B.might C.can’t D.should
Practice
A
证据
B
证据
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
在实验室里
be going to do sth.将要做某事
everyone作主语时，谓语动词用单数形式
4a
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/ could be
引导宾语从句
“是否”引导宾语从句
戴眼镜
hear sb./sth. doing sth.
听某人/某物正在做...
run意为（液体）流淌；流动
think of doing sth.想做某事
take a shower洗淋浴
Complete 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 ______________________________.
ill/having a sore throat
getting colder/ cold outside
wear coats穿外套
have/has been doing sth.现在完成进行时,“一直做......”
4b
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 ____________________________________.
must be delicious
be that boring
feel sleepy感觉瞌睡的
asleep adj.睡着的
“每当”引导时间状语从句
try to do sth.尽力做某事
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.
4c
看这张有关一间房间的照片。你能说出多少住在这里的人的信息？是男孩还是女孩？他/她的业余爱好是什么？和同伴讨论一下你的想法。
我想是的
看起来像
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.
4c
看这张有关一间房间的照片。你能说出多少住在这里的人的信息？是男孩还是女孩？他/她的业余爱好是什么？和同伴讨论一下你的想法。
A: Well, maybe you are right. And I think the boy likes music, because he has a guitar and some CDs in his room.
B: I agree with you. Look! There is a volleyball near the bed. The boy might like sports.
agree with sb.同意某人的观点
Imagine wildly and use the words: could,might,must can’t.
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.
A：It could / might / can't be ... because ...
B：I guess so / I don’t think so. But it
might / could / must be ... because ...
Have a try
Thank you for listening!