(新课标) Unit 8 It must belong to Carla Section A Grammar Focus-4c课件

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Unit 8
It must belong to Carla.
Grammar Focus-4c
It could be
__________.
It also might be
______________.
Can you guess what it is
Three birds
a beautiful face
Can you guess what it is
It could be __________.
It also might be _________.
a white vase
two faces
It could be ______.
It also might be
________.
Can you guess what it is
a dog
two girls
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.
Grammar Focus
语法重点:情态动词表推测
表示可能、怀疑、允诺、愿望、义务、必要、猜测等的动词就是情态动词。情态动词可以表示说话人的语气或某种情态，也可以表示推测。英语中表示推测的情态动词主要有 must, can, could, may, might等。
定义
1. 情态动词不能表示正在发生或已经发生的事情，
只表示期待或估计某事的发生。
2. 情态动词ought和have,后面只能接带to的不定式。
3. 情态动词没有人称、数的变化，即情态动词第三
人称单数不加-s。
4. 情态动词没有非谓语形式，即没有不定式、分词等形式。
语法特征
Learn to make inference
程度 肯 否 疑
must ★★★★ √ 一定;肯定/表示有把握的肯定推测
mustn't √ √ 禁止/表示绝对否定
may/might ★★★ √ 可能/表示不太有把握的肯定推测
may not/might not ★ √ √ 可能不/表示不太有把握的否定推测
can/could ★★ √ 可能/表示推测
can’t/couldn't ★ √ √
不可能/表示有把握的否定推测
(1) “情态动词+动词原形”，表示对现在的事情的推测。
我不知道她在哪儿。她可能在武汉。
I don’t know where she is. She may be in Wuhan.
(2)“情态动词+be+动词-ing形式”，表示对正在进行
的事情的推测。
那个穿着西装的男人也许正跑着去赶公共汽车。
The man in a suit might be running to catch a bus.
拓展
(3) “情态动词+have+动词的过去分词”，表示
对过去或已经完成的事情的推测。
地是湿的，一定是下过雨了。
The ground is wet. It must have rained.
【活学活用一】
用适当的情态动词填空。
1. — Susan has bought a large house with a swimming pool.
— It ______ be very expensive. I never even dream about it.
2. — Listen! Is Mr. Green giving a report in the hall
— No, it ______ be him. He has gone to Japan.
3. Ann hasn’t come to school today. I think she___________ be ill.
4. The guitar _______________ belong to Alice. She likes playing
the guitar.
5. — I wonder if this is Jack’s book.
— It ______ be his. It has Linda’s name on it.
must
can’t
may/might/could
may/might/could
can’t
1. —Where’s Jane —I’m not sure. She ________ in the library.
A. might be B. must be C. can’t be
2. Mr. Collins ______ like tea. He makes a cup of tea every morning.
A. must B. may C. can’t D. mustn’t
3. —Listen! Linda is playing the erhu in the next room.
—It ________ not be Linda. She has gone to Shanghai.
A. can B. must C. need D. shall
4. —In China, many students feel stressed because of too much homework.
—Don’t worry. Our government has realized this problem. I’m
sure there ________ be good news for them soon.
A. can B. must C. should D. need
5. —Whose textbook is it Is it Jenny’s
—No, it ________ be Jenny’s. Look, Helen’s name is on the
cover. I think it _____ be Helen’s.
A. can’t; must B. mustn’t; must C. can’t; may
【活学活用二】
Choose the best way to complete each sentence using the words in brackets.
4a
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.
might be
must be
could be
can’t be
could be
Complete these responses.
4b
1. A: Many people are wearing coats.
B: The weather must be _______________________.
2. A: Sally has been coughing a lot.
B: She might be ______________________.
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 _____________________________.
getting colder/ cold outside
having a bad cold
must be delicious
be that boring
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
It could be/might/can’t
be… because…
Discussion
I guess so/I don’t think
so. But it might/could/
must be… because ...
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. —Whose T - shirt is this —It ___ be John’s. It’s ____too small.
A. can’t; much too B. can’t; too much
C. mustn’t; much too D. mustn’t; too much
3. — 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
4. — Have you decided where to go for your summer vacation
— Not yet. We _____ go to Qingdao. It's a good place for vacation.
A. may B. need C. must D. can
5. — Must I water the flowers now, mum
— No, you ______. You _____ do it later.
A.mustn’t; must B.mustn’t; may C.needn’t; may D.needn’t; must
Exercises
A
A
C
A
C
6. — ______ I know by what time you want the project to be done
— By the day after tomorrow. ______ you finish it on time
A. May; Can B. Must; Need C. Could; Must D. Need; Would
7. —Who’s singing in the garden
—It ____ be Mr. Brown. He always practices singing at this time.
A. must B. can’t C. need D. could
8. I ____ follow you. Would you please repeat it
A. can’t B. mustn’t C. needn’t D. shouldn’t
9. —The driver______be hurt badly in the accident.
—That's true. Let's send him to the hospital as soon as possible.
A. need B. can't C. must D. may not
10. — I can’t find my phone anywhere.
— You _____ have lost it while shopping.
A. may B. can C. should D. would
A
A
A
C
A
THANK YOU!