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人教版 英语 九年级全册
Period 3 Section A (Grammar Focus-4c)
Unit8 It must belong to Carla.
同学们，上一课学习的单词、短语和句型，你们都掌握了吗？现在大家来检验一下，点击下面的音频开始听写吧！
词汇听写
我们在Unit 7学习了含有情态动词的被动语态，今天我们一起来学习情态动词的另一用法：用情态动词may/might/could, must, can’t表推测。
导入新知
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.
合作探究
4a.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
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
plete 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 ________.
3．A：This restaurant is always very crowded.
B：The food _________________.
4．A：Whenever I try to read this book，I feel sleepy. ①
B：It can’t ______________.
cold
ill
must be delicious
be interesting
4c.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.
情态动词表示推测
1 情态动词有must，might，could，can 等。表示推测时，要根据肯定句、疑问句或否定句的不同句式选用不同的情态动词。
语法讲解
must 表示有把握的肯定的推测，
只用于肯定句，意为“ 一定；肯定”。 The light is on. He must be at home now.灯亮着。他现在一定
在家。
can 表示有把握的肯定的推测，只用于肯定句，意为“ 一定；肯定”。 That can’t be Mary. She’s in New York.那不可能是玛丽。她在纽约。
might/
could 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 likes playing volleyball.
这个排球可能是汤姆的。他喜欢打排球。
特别提醒：（1）情态动词表示推测时，无时态区别，只有语气差别。表示肯定推测的情态动词的语气强弱：might→ may→ could→ can→ must弱→强（表示可能性的大小程度）
（2） must 在表示肯定推测时，意为“一定”，但是用于否定推测时要用can’t，而不用mustn’t，因为mustn’t 表示“禁止”。
e.g. He must be at home. 他一定在家。
→ He can’t be at home. 他不可能在家。
中考在线1：You haven’t eaten all day. You _____be very hungry. [武威]
A. couldn’t be B. can’t
C. might D. must
D
中考在线2：—Is that Li Ming over there
— It _______be him. He has gone to Zhenyuan for the Dragon Boat Festival. [黔东南州]
A. must B. mustn’t C. can D. can’t
D
2
不同形式的情态动词表示不同的含义
1.“情态动词+ 动词原形”表示对目前事情的推测。
e.g. The book must be Kate’s.这本书肯定是凯特的。
2.“情态动词+be + 现在分词”表示对正在发生的事情的推测。
e.g. She must be doing her homework athome now.
现在她一定正在家里做作业。
3.表示对过去或已完成事件的推测用“情态动词+ have done”。
e.g. He must have known the bad news.
他一定已经知道了这个坏消息。
4.“There + 情态动词+be+ 主语+ 现在分词形式”表示“可能/ 或许/ 一定有……在做……”。
e.g. It is noisy. There might be some boysplaying soccer.
太吵了，可能是有些男孩在踢足球。
中考在线3：—Listen! Linda is playing the erhu in the next room.
— It _____not be Linda. She has gone toShanghai to visit her uncle. [宜昌]
A. can B. must C. need D. shall
A
①Whenever I try to read this book, I feel sleepy.
（重点）sleepy /'sli pi/ adj. 瞌睡的；困倦的
辨析：sleepy, asleep 与sleep
sleepy 形容词，意为“困倦的；瞌睡的”，既作定语，也作表语。feel sleepy 感到困倦
asleep 形容词，意为“睡着的”，只作表语，不作定语。fall asleep 意为“入睡；睡着”
sleep 既作动词，也作名词，意为“睡觉”。go to sleep 入睡；睡着
e.g. After taking the medicine, I felt sleepy.
服了药之后我感觉有点困倦。
Look at the sleepy child. 看那个瞌睡的孩子。
When I came in, he was asleep.
当我进去时，他在睡觉。
It’s too late. Let’s go to sleep.
天太晚了，咱们去睡觉吧。
She glanced at the sleeping child and then hurried away.
她看了一眼睡着的孩子，随即匆匆离开了。
adj.睡着的
中考在线：She was so ________（ 瞌睡的）that she went to bed early last night. [乐山]
sleepy
返回
本节课主要学习了用情态动词表推测的用法，了解了中考对这类题的考查角度，掌握了这类题的做题方法。
归纳新知
一、从方框中选择合适的单词并用其正确形式填空。
1. She bought two ___________ in the clothes store.
2. I felt so ___________ after working for long hours that I could hardly open my eyes.
3. There are two _____________ in our school. We often do experiments(实验) there.
outdoors, coat, laboratory, sleep, might
coats
sleepy
laboratories
巩固练习
4. The sun is shining brightly. It must be hot _________.
5. It _________be a cat, but I’m not sure.
outdoors, coat, laboratory, sleep, might
outdoors
might
二、根据句意，选择合适的单词填空。
6. You ____________(can/must) be tired after working for a long time without a rest.
must
7. —Who is the woman over there Is she Mrs. Smith
—It _________ (may/can’t) be her. She is much shorter.
can't
8. —Where’s Yuan Bao
— I’m not sure. He _________ (could/ must) be in the bedroom.
could
9. —What will the weather be like tomorrow
— It _________ (must/might) be windy or rainy. I’m not sure.
might
10. Alice __________(must/can’t) be working now, because the light in her room is still on.
must
三、单项选择。
11. [2019·临沂] Ants are pretty small. You might think that they _____ be rather weak. But what you might not know is that ants are actually very strong for the size.
A. need B. can’t C. must
C
12. —Where is Monica I can’t find her anywhere.
— She ______ be in the library. She loves reading books when she is free.
A. must B. need C. can’t D. will
A
13. [2019·敦煌]—Whose cap is this Is it Cindy’s
— It ______ be hers. Don’t you remember she even didn’t come to the party
A. can’t B. might
C. may not D. must
A
14. [2 019·咸宁] —Listen! Is Sarah singing in the neighbor room
—No. It ______ be Sarah. She has gone to Italy.
A. needn’t B. may not
C. can’t D. won’t
C
15. [2019·眉山]—I can’t find my phone anywhere.
—You _____ have lost it while shopping.
A. may B. can C. should D. would
A
四、按要求完成句子，每空一词。
16. The woman outside the school gate must be our head teacher. ( 改为否定句)
The woman outside the school gate _______ _______ our head teacher.
can't be
17. Judy could have bought some nice gifts. (改为一般疑问句)
________ Judy ________ ________ ________ nice gifts
Could have bought any
18. That pink watch might be Mrs Smith’s. (对画线部分提问)
________ ________ that pink watch ________
Whose might be
19. John could hardly believe his own eyes. (完成反意疑问句)
John could hardly believe his own eyes, _______ ______
could he
20. Do you know whose dictionary it may be (改为同义句)
Do you know ________ the dictionary may ________ ________
who belong
to
五、语法填空。
根据语境或提示完成短文。
Mrs Green is a teacher in a middle school, and her husband is a manager in a company. They have a son and a daughter. They live 21 _____happy life, but sometimes there is something strange 22__________ (happen) in their house.
a
happening
One day, Mrs Green came home from work and it was half past five in the afternoon. She went into her son’s bedroom and began to do some 23 __________ (clean). Suddenly, she found there was some broken glass on the ground. “What could 24 __________ (break) Could it be a glass Who broke the glass Could it be my son, Tom No, it 25 __________(can) be him. He has 26 __________ (go)
cleaning
be broken
can't
gone
to school. Could it be my daughter No, she hardly goes into Tom’s room,” Mrs Green thought. 27 ___________ she was standing there and watching the broken glass on the ground, her husband came into the room. He said he went into this room this morning. And he 28 __________ (want) to look for a pen. He was so 29 __________ (care) that he broke the glass. He didn’t clean the glass on the ground 30 __________ he had to hurry to work.
When/While
wanted
careless
because
再 见
