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(共15张PPT)
Unit 8
It must belong to Carla.
Section A 2d-GF
情态动词 must, might, could, can’t 后接动词原形，表推测。
It can’t ( )…
It might/could ( ) …
It must ( ) …
+ be Tom’s book
★
★
be Tony’s （是…的）
It must
不可能
有可能
肯定
belong to Tony. (属于…)
belong to 没有被动语态。
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
What did
can't be
might be
Linda is always forgetting things. She often asks her mother where her things are.
1. Where are they
2.How might Linda feel
3. What are they probably talking about
They must be talking about the schoolbag.
She might feel worried.
They must be at home. They might be in the living room.
Activity 4-1 View and predict
Look at the picture and predicct the quetions using “must, can, could, may, might, can’t”
2d
1. Why is Linda worried
2. What things are in her schoolbag
3. Where did Linda go yesterday
Books, her hair band and some tennis balls.
She went to the music hall and the park.
Because she can’t find her schoolbag.
Activity 4-2 Listen for details
4.Where is Linda’s schoolbag
I attended the concert.
It _______be in the music hall.
It ______ be stolen.
There is nothing valuable in it.
It ______ be at the park.
I went to the picnic with it.
Somebody _____ have picked it up.
I left early, before my friends.
might
can’t
could
must
Linda: Mom, I ’m really worried.
Mom: Why What’s wrong
Linda: I can’t find my schoolbag.
Mom: Well, where did you last put it
Linda: I can’t remember! I attended a concert yesterday so it might be still in the music hall .
Mom: Do you have anything valuable in your schoolbag
Linda: No, just my books, my pink hair band and some
tennis ball.
怎么了？ What’s wrong with sb.
“参加一场音乐会”, attend意为“参加”，为正式用语，指参加婚礼，典礼及去上课，上学，听报告等。
value:n.价值；v.重视；珍视 valuable:adj.贵重的
be of great value = valuable
valueless:adj.不值钱的；没有价值的
不可能被偷steal-stole-stolen
go for a picnic/ go on a picnic /go to a picnic去野餐
野餐时
the rest of+n./pron.作主语时，谓语动词的单复数取决于of后的名词或代词的数，意为“剩/其余的...”
Mom: So it can’t be stolen.
Linda: Oh, wait! I went to a picnic after the concert. I remember I have my schoolbag with me at the picnic.
Mom: So, could it still be at the park
Linda: Yes. I left early, before the rest of my friends. I think somebody must have picked it up. I’ll call them now
to check if anybody has it.
must have done一定做过某事（对过去事情的肯定推测）
can’t have done不可能做过某事（对过去事情的否定推测）
Let's finish the following task
Linda: Mom, I ’m really worried.
Mom: Why What’s wrong
Linda: I can’t find my schoolbag.
Mom: Well, where did you last put it
Linda: I can’t remember! I attended a concert yesterday so it might be still in the music hall .
Mom: Do you have anything valuable in your schoolbag
Linda: No, just my books, my pink hair band and some tennis balls.
Mom: So it can’t be stolen.
Linda: Oh, wait! I went to a picnic after the concert. I remember I have my schoolbag with me at the picnic.
Mom: So, could it still be at the park
Linda: Yes. I left early, before the rest of my friends. I think somebody must have picked it up. I’ll call them now to check if anybody has it.
2d
出席音乐会
在音乐厅
有价值一些的东西
发带
去野餐
在野餐
离开早
我剩下的朋友
一定已捡起来
检查
不定代词+形容词
pick up捡起/顺路接某人
3. That sweater _____ be Carla’s. She’s the only one who wears such colorful clothes.
4. Tony ______ want to go to the concert. He likes music, but I’m not sure if he likes rock music.
5. The person you saw at the supermarket _____ be Susan. I just talked to her on the phone, and she’s at work right now.
I. Fill in the blanks with must, might, or can't.
1. That bright light ______ be a UFO – there’s no such thing!
2. I’m still waiting for the bus, so I ________ be a bit late for the party.
can’t
might
must
might
can’t
情态动词 must, might, could, can’t 后接动词原形，表推测。
It can’t ( )…
It might/could ( ) …
It must ( ) …
+ be Tom’s book
★
★
be Tony’s （是…的）
It must
不可能
有可能
肯定
belong to Tony. (属于…)
belong to 没有被动语态。
★
确信程度大小：must ＞ can ＞ could ＞ may ＞ might ＞can’t
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
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
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
1. A: Many people are wearing coats.
B: The weather must be ________________________.
2. A: Sally has been coughing a lot.
B: She might be ______________________________.
Complete these responses.
ill/having a sore throat
getting colder/ cold outside
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

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