人教新目标(Go for it)版九年级英语Unit 8 It must belong to Carla.Section A (Grammar Focus-4c)课件（共有PPT16张）

(共16张PPT)
Section A (GF-4c)
重点单词
1. noise (n.)声音；噪音
2. policeman (n.)男警察
3. wolf (n.)狼
重点短语
1. something unusual一些不寻常的事
2. next-door neighbor隔壁邻居
3. feel uneasy感到不安
4. go away走开，离去
5. make fear制造恐惧
6. make noise吵闹
重点句型
1. My wife thinks that it could be an animal, but my friends and
I think it must be teenagers having fun.我妻子认为可能是一
只动物，但是我和我的朋友们认为那一定是青少年在闹着玩。
2. They think it might be the wind. I don’t think so.
他们认为是风，我不这样认为。
3. So I guess it can’t be a dog. But then, what could it be
因此，我猜那不可能是只狗。但是那么它又可能是什么呢？
4. There must be something visiting the homes in our neighborhood.一定有什么东西正在拜访我们小区的家庭。
Dictation
Make inferences with
“ must/might/could/can’t ”.
Review the other usages of Modal Verbs (情态动词）
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
Words Review
Read after the tape and speak out the Chinese immediately.
A: Whose volleyball is this
B: It must be Carla’s. She loves volleyball.
A: Whose hair band is this
B: It could be Mei’s hair band.
A: What did you see that night
B: 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 below and pay attention to the red words.
2.情态动词的语法特征
　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 除ought 和have 外，后面只能接不带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。
1.情态动词的定义：表示可能、怀疑、允诺、
愿望、义务、必要、猜测等的动词是情态动词。
情态动词的用法
Could you sing a song for us
He can sing very well.
We must wear school uniforms every day.
Miss Yi might be nervous.
You should relax yourself.
表请求
表能力
表必须
表推测
提建议
Modal Verbs 情态动词
表推测的情态动词must, may, can, could, might等可以用来表示推测和判断。具体用法如下：
1.must：must意为“一定；准是”。表示说话人对事物的推测可能性的程度非常大。
　　①“must be +表语”意为“一定……”，表示对现在情况的推测。
　eg: I can’t understand them. They must be foreigners.
表示推测的情态动词
　②“must be+现在分词”意为“一定正在……”，表示对说话瞬间情况的推测。
　 She must be cooking now because I can smell something delicious.
　③“must have +过去分词”意为“一定已经……”，表示对过去情况的推测。
I can’t find my keys .I must have left them at home.
2.may: may表示推测，语气没有表示推测的must语气强，意为“也许”，may not，意为“也许不”。
　常见句型为：“may be +表语”意为“有可能……”，表示对现在的可能推测。
　He may be angry because he looks unhappy.
3.can: can表示推测时，常用于否定句、疑问句中，can’t意为“不可能；应该不是”。
　常用句型为：“can/can’t be +表语”意为“（不）可能……”，表示对现在情况的推测。
　That can’t be Maria, because she’s in hospital.
　There’s someone outside. Who can it be
4. could/might:如果表示推测的把握性不是很大时，用could或might。它们常用于肯定句或疑问句中，意为“也许；可能”。
He might be doing his homework now. Could the news be true
情态动词后面必须用动词原型。
情态动词做句型变化时只需对情态动词做相应的变化。
情态动词可以表示 能力、请求、允许、猜测、建议、必须、需要等涵义，并且都有各自的用法。
学会使用思维导图来使得知识条理会，系统化，最重要的是你的思维要条理化。
Summary
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.
can’t be
could be/must be
could be
4b
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 ____________________.
3. 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 __________________.
getting colder
having a sore throat/ill
must be delicious
be that boring
/cold outside
1.—Excuse me, whose book is this
—It＿＿be John’s. It has his name on it.
　A. must　 B. need　 C. can’t D.could
2.The man____be my English teacher. He has gone to Canada.
　A. might　 B. must　 C. can’t D.can
3.After a long walk, the old man＿＿be tired now.
A. can’t B. must C. has to D. need
4.—I think the girl under the tree must be Alice.
—No, it＿＿be her. She’s in the gym now.
　A.can’t B.mustn’t C.may D.must
5.Martin＿＿get here in time, but I am not sure.
　A.must B.might C.can D.should
I 单项选择。
A
C
B
A
C
Review the grammar we’ve learnt today.
Finish the exercises in workbooks.
Preview the new words and expressions.
Preview 1a-1d on page 61.