(共24张PPT)
人教新目标九年级上册
Section A
Grammar Focus—4c
语法课公开课
1.学习掌握下列词汇：laboratory, coat, sleepy, pocket。
2. 运用本单元所学习的must，could，might，can情态动词，表达对事物的推测。同时灵活运用不同的情态动词进行推测，进一步提高口语表达的准确性。
Whose…is this
It \must\might\could\can’t be…
laboratory
outdoors
coat
sleepy
n. 实验室
adv. 在户外；在野外
n. 外套；上衣
adj. 困倦的；瞌睡的
Revision
Listen and repeat
Revision
Can you guess what it is
It must be _______.
It also might\could be ______________.
a cat
a bear\dog
It could be __________.
It also might be ______________.
three birds
a beautiful face
It must be ___________.
It also could\might be ______________.
a young girl
an old woman
Revision
Can you guess what it is
It could be _____________.
It also might be _________.
a white vase
two faces
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.
Read the sentences and translate them.
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.
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.
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.
Whose volleyball
must Carla’s
Fill in the blanks according to grammar focus.
Practice
Whose hair band
could
might
both
What
not sure
can’t be
might be
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
探究语法规律
What did you find out
探究一：情态动词表示推测的用法
情态动词can, could , may, might, must, can’t 都可以用来表示说话人对某事的推测。
2.结构：情态动词+动词原形（此时动词原形通常为 be）。
1.must表示肯定推测，意思是“一定、准是”。只能用于肯定句。
He must know the answers. 他一定知道答案。
2. can表示否定推测，can’t意为“不可能”， 用于否定句。can在疑问句中意思是“可能” 。
He can’t pick her schoolbag up. 他不可能拿了她的书包。
Can he know the answer 他知道答案吗？
could 表示某事有可能发生或可能是事实。
Don’t eat it. It could go bad. 不要吃它，可能坏了。
探究一：情态动词表示推测的用法
Grammar Focus
3.may, might 表示推测把握性不大的推测，意思是“可能，也许”。might不表示过去时态，语气更委婉，可能性更小。
He may / might not be at home, but I'm not sure.
他可能不在家，不过我也不确定。
（1）情态动词表示推测时，无时态区别，只有语气差 别。表示
推测情态动词的语气强弱顺序如下（由强 到弱）：
must ＞ can ＞ could ＞ may ＞ might
（2）含有must的句子（must表推测）变为否定句时，要用can’t。
注意：
情态动词表示推测可以分为以下几种情况:
★情态动词+ do 此结构表示对现在或将来情况的推测和判断
—Do you know where she is now
—I think she ______ ________in Beijing. 我认为她可能在北京旅游。
★情态动词+ be doing 此结构表示对现在或将来正在进行的情况的推测和判断。
At this moment, my father can’t be working in the office.
He ______ ______ ______ his homework at home.他一定在家做作业。
★情态动词+ have done 此结构表示对过去情况的推测和判断。
The road is wet. It ____________ _____ _____last night.昨天晚上可能下雨了。
★情态动词+ have been doing此结构表示对过去正在进行的情况的推测和判断。
Your mother must have been looking for you at that moment.
探究二：情态动词表示推测的几种情况
Grammar Focus
must be doing
might travel
might\could have rained
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
探究语法规律
What did you find out
探究三：belong (to)的用法
belong用作动词，通常用作不及物动词。基本含义是“在原来该有的地方”,一般译为“属于”,“与…有关”。不可直接接宾语,常和介词to连用,指(主权方面的)“属于”,也指“是(社团、家族、社会阶层的)一员”。
1 belong to sb. 可用来指某物属于某人 , to是介词，后跟名词，代词等。
例: This book belongs to me.这本书是我的。
2 belong to sth.
A）指与某物或某处有一定的关联，或者什么东西可以做什么用。例如：
I belong to Shanghai. 我是上海人。This lid belongs to this jar. 这个盖子是配这个瓶子的。
B）指XX是某团体、组织等中的一员。例如：Do you belong to any clubs 你属于哪一个俱乐部吗？（也可译为“你参加了哪一个俱乐部了吗？”）
探究三：belong (to)的用法
Grammar Focus
在用法1中，说“sth. belong to sb.”也可以用“sth. +be +名词性物主代词或者人名’s的形式”。
Whose T-shirt is this
It must belong to Mary.
=It must be Mary’s.
The book belongs to her.
=The book is hers.
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.
Choose the best way to complete each sentence using the words in the brackets.
4a
might be
must be
could be
can’t be
must be
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_________________________.
A: This restaurant is always very crowed.
B: The food ________________ .
4. A: Whenever I try to read this book, I feel sleepy.
B: It can’t _______________________________.
4b
be interesting
cold
ill
must be delicious
/be that boring
/sick
/having a cold
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
I can see a girl in the picture. I think it must be a girl’s room.
I guess not. But it might be a boy’s room because in general boys like CD more than girl.
Practice
It could/might/can’t
be... because ...
I guess so/I don’t think
so. But it might/could/must
be ...because …
Ask and answer in pairs.
Look at the two rooms below. Make guesses about the owner of each room.
Practice
Summary
情态动词表推测
主要有must, can /could, may /might等。
肯定推测：
must, can / could, may / might都可以表示肯定推测。must 表示把握性极强的推测，意为“肯定、一定”；can / could和 may / might表示把握性不大的推测，意为“也许、可能”。
否定推测：
can’t 意为“不可能”，表示很有把握的否定推测，may not意为“可能不”，表示把握性不太大的否定推测。
一、用情态动词的正确形式填空
After a long walk, you ______ feel tired.
The man ______ be Mr. Li. He went to HK yesterday.
My mom go the visit grandpa. I am not sure of it.
The note book ______ be Mary’s because it has her name on it.
5.You _______ swim in the river. It’s dangerous.
must
can’t
may/might/ could
must
Class Test
mustn’t
1. 和克莱尔一起工作塔拉总是感到不安。
Tara always _____ ______ about working with Claire.
2. 现在埃米正在洗淋浴。请一会儿给她打电话。
Amy is ______ _____ ______ now. Please call her later.
3. 刚才萨莉没有和我们说再见就走开了。
Sally _____ _____ without saying goodbye to us just now.
4. 当你在地板上走路时试着不要发出噪音。
Try not to _____ _____ when you walk on the floor.
5. 我的隔壁邻居总是开派对到半夜。
My ________ ________ always holds parties till midnight.
6. 昨天下午这些孩子高兴地踢足球。
These children _____ _____ ______ football yesterday afternoon.
feels uneasy
taking a shower
went away
二、根据汉语意思完成英语句子，每空一词。
make noises
next-door neighbor
had fun playing
Recite the sentences in Grammar Focus and remember the Grammar.
2. Write a passage according to the instruction.
Homework
Homework
假设今天是星期天，你正在家里午睡，突然听到敲门声，请你根据表格中的信息，写一篇短文来判断是谁，并给出判断理由。
要求：1.短文流畅、连贯；2.60~80词。开头已给出，不计入总词数。
Inference (推断） Reason
parents (impossible) being at home
thief (impossible) being afraid
neighbor (possible) wanting some help
aunt (certainly) coming to visit us
There is a loud knock at the door…
There is a loud knock at the door. The knock wakes me up. Who is it It can’t be my father or mother, because they are both staying at home. It can’t be a thief. The thief is afraid，and it’s impossible for him to knock at the door. It may be my neighbor. Maybe he wants some help. Oh, it must be my aunt. She often comes to visit us on Sunday.
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Unit8 Section A Grammar Focus-4c同步练习
I.根据句意及汉语提示完成句子
1.The students are doing experiments in the (实验室) on the second floor.
2.It's very cold outside. If you want to go outside, you'd better put on your thick (外套).
3.We don't like (狼) because they are dangerous animals.
4.When I got up, my brother was taking a shower in the (浴室).
5.—Whose (眼镜) are these
—They are my grandfather's.
II.用所给单词的适当形式填空
6.Lisa didn't sleep well last night, so she felt (sleep) this morning.
7.The doctors asked us not to go to (crowd) places during the long winter holiday.
8.I heard someone (sing) in the next room. Maybe it's Linda.
9.The poor boy has been (cough) for two days. His mother took him to the hospital.
10.When I called Grace, she was thinking of (take) a shower.
III.用must, might, could, can't, may, can填空
11.—Someone is knocking at the door. it be Jane
—It be her. She's gone to Shanghai.
12.You be very tired after working for five hours without a stop.
13.She be at home now. The light in her room is not on.
14.Don't play with the knife. It's very sharp and you hurt yourself.
15.I bought him some sandwiches because I thought he be hungry after the journey.
IV.根据汉语意思完成句子
16.工作了一整天后,你现在肯定累了。
You tired now after a whole day's work.
17.那本法语书不可能是苏珊的,因为她根本不喜欢法语。
The French book Susan, because she doesn't like French at all.
18.在过去,人们未能过上幸福的生活。
People a happy life in the past.
19.“尼克,你父亲在哪里 ”
“他可能正在公园里锻炼。”
—Nick, where's your father
—He in the park.
20.街区里一定有人在唱歌。
someone singing in the neighborhood.
V. 完形填空
Leo was a small and thin boy who lived in a small village. Some boys in the village often made fun of(嘲弄) 21 and Leo was afraid.
One day, an old wizard(术士) went by the village and saw Leo being made fun of. So when the bad boys left, he gave Leo a lion's tail. “It's a 22 tail,” the wizard said. “When someone wears it and acts bravely, he or she will turn into a strong 23 .” Leo hung the lion's tail behind his body and decided to teach the bad boys a lesson.
But when the boys came, Leo was afraid and tried to 24 . However, they caught him. Suddenly, Leo 25 the tail and remembered what the wizard had said. He became brave. He looked them in the eyes and said he would make them 26 doing that. Leo felt the goosebumps(鸡皮疙瘩) all over his body. “This must be the 27 that I am turning into a lion,” he thought. The boys ran away in fear. Leo wanted to catch them, but he found his legs were short 28 .
When the wizard saw it, he came to Leo. Leo was very happy, although a little 29 because his lion body had lasted only a short time.
“You are right,” said the wizard. “But have you ever seen a lion fighting No one fights with lions 30 they know how brave and strong lions are.”
It was true. Leo had never seen a lion fighting. He understood that a truly brave boy would make the bad boys afraid and that what really worked was not the tail but the heart.
( )21. A. it B. him C. her D. them
( )22. A. strong B. long C. magic D. beautiful
( )23. A. soldier B. hero C. man D. lion
( )24. A. catch up B. run away C. speak up D. go over
( )25. A. felt B. got C. hung D. smelt
( )26. A. regret B. keep C. forget D. hate
( )27. A. problem B. sign C. chance D. purpose
( )28. A. at last B. at first C. as well D. as usual
( )29. A. shy B. afraid C. nervous D. disappointed
( )30. A. if B. until C. because D. though
VI.阅读补全 阅读下面的短文,从短文后的选项中选出能填入空白处的最佳选项补全短文。
Drones(无人机) can do a lot of things for us, taking photos, delivering(递送) things from packages(包裹) to pizzas to beer and following wild animals. 31. .
Can you believe it 32. . US company IBM has made this kind of drone. It can deliver coffee to sleepy people. The drone can know when to bring a cup of coffee by studying a person’s personal information. 33. . There is a special device(设备) under the drone. It helps the drone to give coffee. The drone can also learn about someone’s coffee-drinking habits and tell when someone needs next cup of coffee.
34. . One company in Africa use drones to deliver medicine and blood fast and save many people’s lives. The drones are able to fly at speeds of up to 60 mph and when they are within a minute of the destination(目的地), the doctors receive a text and wait nearby. The drone drops off the package and then returns to its home.
A 92-year-old hunter in Virginia was lost and had to spend a night in the woods. The police searched for him all night but failed to find him. 35. . Also, drones helped firefighters know about the fire in the wildfire fight.
A. Drones can also save lives
B. But they have other uses now
C. Drones can serve people coffee
D. Then, the drone will fly to the person
E. Luckily the drone tracked(追踪) him down in 20 minutes
Unit8Section A Grammar Focus-4c同步练习参考答案
I.1.laboratory 2.coat 3.wolves 4.bathroom 5.glasses
II.6.sleepy 7.crowded 8.singing 9.coughing 10.taking
III.11.Can; can't 12.must 13.can't 14.may/might/could 15.must
IV. 16.must be 17.can't belong to 18.couldn't live 19.may/might/could be exercising 20.There must be
V. 21—25BCDBA 26—30ABDDC
VI.31—35BCDAE
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