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(共49张PPT)
Unit 8 It must belong to Carla.
Section A Grammar Focus-4c
Learning objects (学习目标)
By the end of the class, you will be able to…
Learn the new words:
laboratory, outdoors, coat, sleepy…
Learn the grammar: make inferences with modal verbs.
Talk about the belongings.
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
1. 这是谁的排球 _______ __________ is this
这一定是卡拉的。她热爱排球运动。
It ______ be ________. She loves volleyball.
must Carla’s
2. 这是谁的发带？ ______ ____ ____ is this
它可能是梅的发带。或者可能属于琳 达。她们两人都是长头发。
It ______ be Mei’s hair band. Or it ______ belong to Linda. They _____ have long hair.
could
might
both
Whose hair band
Whose volleyball
3. 那晚你看见了什么？ _____ did you see that night
我不确定，但肯定不可能是狗。它更大。我想也许是一头熊或一匹狼。
I’m ___ ____, but it _____ ___ a dog.
It was bigger. I think it _____ ___ a bear or a wolf.
What
not sure
can’t be
might be
1. whose /hu z/ adj.& pron.谁的
whose既可置于名词前作定语，也可单独使用，在句中作表语。
whose 是who 的所有格形式，用来对物主代词及名词所有格进行提问
eg: Whose is that bike 那辆自行车是谁的？
2. belong to 属于…
1. 不能用于进行时态
2. 不能用于被动语态
3. belong to +名词或代词的宾格。
4. 常与名词性物主代词或名词所有格进行
句型转换, 即：
belong to + sb. / 代词宾格
=be + sb’s / 名词性物主代词。
(　 　)1. —I found a book in my room. _____ is it
—Oh, it is ________. Thank you.
A. Whose me B. Who my C. Whose mine
(　 　)2. —Can I use your bike for a while？　
—No，it doesn't belong to_______．It is John's．
A．I B．me C．myself D．mine
C
B
Fill in the blanks with modal verbs.
—Whose volleyball is this
—It ________ Carla’s. She loves volleyball.
—Whose hair band is this
—It ________ Mei’s hair band. Or it ________
belong to Linda. They both have long hair.
could be
must be
might
—What did you see that night
—I’m not sure, but it ________ a dog. It was
bigger. I think it ________ a bear or a wolf.
can’t be
might be
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。英语中表示推测的情态动词主要有 must, can, could, may, might等。
定义
must 用于肯定句，意为“一定，肯定”，表示有把握的肯定推测。 Alan has been in China for several years. He must be a big boy now.
can 多用于否定句或疑问句中，意为“可能；会”，表示可能性较大的推测。can't可用于对must表示的肯定推测进行否定。 That can't be Mary—she's in New York.
might/ could/ may 用于肯定句，意为“有可能，也许”，表示把握不大的推测。 This volleyball might/ could be Tom’s. He is looking for his volleyball.
(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.
must
can’t
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.
may/might/could
can’t
may/might/could
1. (怀化中考) ——Where’s Jane
—I’m not sure. She ________ in the library.
A. might be B. must be C. can’t be
2. (泸州中考) Mr. Collins ________ like tea. He
makes a cup of tea for himself every morning.
A. must B. may C. can’t D. mustn’t
二、单项选择。
3. (宜昌中考) —Listen! Linda is playing the erhu in
the next room.
—It ________ not be Linda. She has gone to
Shanghai to visit her uncle.
A. can B. must C. need D. shall
4. (泰州中考) —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. (鄂州中考) —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 D. mustn’t; may
There be sb doing sth 某处有某人正在做某事
There be sth done 某处有某物被...
There be sth to do 某处有某物将要...(将来时)
1. There is a man fishing (fish)by the lake.
2. There was a car stolen (steal)last night.
3. There is a lot of work to do (do) ．
( )1. There _____ a car accident. There is such a long line of cars along the road.
A. must have B. must be C. should have D. should be
( )2. Don’t worry. There is somebody else __ you with the work.
A. help B. helping C. helped D. to help
( )3. There are some children ___ fun at the corner of the street.
A. have B. to have C. had D. having
( )4. I hear a strange sound. I think it must be somebody _____.
A. to knock B. knocking C. knock D. knocked
B
D
D
B
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.
might be
must be
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.
could be
can’t be
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/ must be
take a shower 意为“洗淋浴”，相当于 have a shower。
hear sb./sth. doing sth.
听见某人/某物正在做某事
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 _____________________________.
very cold
having a bad cold
must be delicious
be that boring
sleepy 形容词，意为“困倦的；瞌睡的”。既可作定语，也可作表语。
asleep 形容词，意为“睡着的”，只能作表语，不能作定语。fall asleep 意为“入睡”。
whenever 连词，意为“每当”时，引导时间状语从句；意为“无论何时；在任何时候”时，引导让步状语从句，相当于no matter when。
Whenever I try to read this book, I feel sleepy.
sleep, sleepy, asleep
sleepy adj. 困的；想睡的。可作定语和表语。
asleep adj. 睡着的。强调状态，常作表语。
fall asleep 入睡；睡着
sleep v. 睡觉 n. 睡眠；睡觉
【语境应用】根据句意, 用sleep, sleepy或asleep填空。
1) Look at that ________ dog.
2) Tom is _____________________. Please keep quiet.
3) I think people need eight hours of ________ a day.
4) Grandpa fell ________ when he was watching TV.
asleep
sleepy
sleep
sleeping / asleep / sleepy
1.—Why are you looking_______ in class all day
—Because I can’t finish my homework until eleven every night.
A．awake　B．asleep C．sleeping D．sleepy
2. I felt so ____ that I fell ____ on my way home.
A. sleepy; sleepy B. sleepy; asleep
C. asleep; sleepy D. sleepy; sleeping
D
B
情态动词
1.情态动词没有人称、数的变化。
2.情态动词后面＋动词原形。
can
can可表示能力/允许/可能性/怀疑猜测，意为“可以，会，能”；can’t意为“不会，不能，不可以”，还有
“不可能”之意。could为can的过去式，用法与can类似，常用于过去时态中；could还可用于现在时态中表示委婉客气，相当于can；could也可表示惊讶怀疑，不相信。
eg: He couldn’t be a thief.
may
may表示允许、也许，意为“也许；可能；可以”，语气不太可能。对may的一般问句的回答：
肯定回答一般是：Yes, please./ Certainly./ Sure等
否定回答一般是： No, you can’t/mustn’t.
might是may的过去式，与may用法类似，语气比may弱，表示推测的可能性更小，常用于肯定句和否定句中，不用于疑问句中。
must
must表示必须要做的事，意为“必须，应该”。must一般问句的否定回答用needn’t或don’t have to，而不用mustn’t，mustn’t意为“不可以，不能”，表示禁止，不许可。
eg: — Must we hand in our exercise book today
— Yes, you must. ( No, you needn’t.)
must还可表示有把握的推测，意为“一定、肯定”。must的过去式还是must。在回答以must开头的一般疑问句时，否定式需用needn’t，表示“不必”的意思。
【活学活用】
1.—The lake is said to be dry. Is that true
—It _______. Look, some kids are swimming in it!
A. must be true B. can’t be true
C. may not be true
2. —_____ _____ this balloon
— It’s Amy’s.
A. Who; is B. Whose; are
C. Whose; is D. Who; are
3. —Look! A book is on the floor. Whose is it
—It _____ be Rick’s. It has his name on it.
A. mustn’t B. can’t
C. must D. need
4. —Is Lisa at home
—I’m not sure. She _____ be on the way home.
A. can’t B. could
C. should D. need
5.—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
6.—Oh, it’s raining hard.
—Be careful! The road ______ be wet.
A. could B. must C. might
7. An official ______ by some reporters on food
problems in Shanghai yesterday.
A. is interviewing
B. is interviewed
C. was interviewed
1. —Could you play the piano at the age of five
—No, I ______. I started at six.
A. can’t B. shouldn’t C. needn’t D. couldn’t
2.—May I park my car here
—No, you_______. Can’t you see the sign
A. mustn't B. wouldn't C. needn't D. couldn't
D
A
3. —What will the weather be like tomorrow
—It ______ be rainy, cloudy or sunny. I am not sure.
A. must B. may C. can’t D. should
B
4. Life _______ be easy or difficult, sometimes it depends on how you look at it.
A. can't B. must C. can
C
5.—I saw Mr. Li in his office just now.
—No，it ________be him. He has _________ Guangzhou and will be back in two days.
A. mustn’t; gone to B. mustn’t; been to
C. can’t; been to D. can’t; gone to
6. —Sandy, is Mr Li in the teachers’ office now
—I am not sure. He ______ be there.
A. must B. can’t C. mustn’t D. may
D
D
三、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.
must
can’t
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.
may/might/could
can’t
may/might/could
Choose must , might, could, can’t , can to fill in the blanks.
1.The storybook______ be hers. It has her name on it.
2.The beautiful trousers ______ be Lily’s. Because they’re too long.
3.I can’t find my key. It____________ be left at home.
4.The volleyball___________ be Sally’s or Ann’s. They both like playing volleyball.
5.The piano____________ belong to Alice. She often plays the piano.
must
can’t
could/might
might/could
might/could
7.The pen___________ belong to him. It’s on his desk.
might/ could
8.My mother _________ be at home. She left home with me. She has gone to go to work.
can’t
9.This basketball ____________ be Ning’s. He plays basketball every day.
could/ might
10.This school uniform _________ be Nick’s. It’s too small for him.
can’t
6. _____that wallet yours --No, it _______be mine. Mine is here.
Can
can’t
Thank You!

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