Unit 8 It must belong to Carla. SectionA Grammar Focus-4c课件(共24张PPT)

(共24张PPT)
Unit 8
It must belong to Carla.
Section A
Grammar Focus-4c
完成句子
1. 这里过去曾是一个安静的地方。
It _______ _______ _______ a very quiet place.
2. 他说他常常听到窗外有奇怪的噪音。
He said he often _______ _______ _______ outside the window.
used to be
heard
strange
noises
3. 有些人认为一定是孩子们正在快乐玩耍。
Some people think it _______ _______
children _______ fun.
4. 一定有人在公园里唱歌。
There _______ _______ someone _______ in the park.
5.这能是真的吗
___________ this be true
must be
having
must be
singing
Can / Could
8. 它太大了而不可能是狗。
________________________________
9. 这个地区的一个妇女看到有东西在逃跑。
_________________________________
_________________________________
10. 噪音制造者正享受着在街区制造害怕的
乐趣。
________________________________
________________________________
It was too big to be a dog.
A woman in this area saw something running away.
The noise-maker is having too much fun creating fear in the neighborhood.
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
情态动词can/could表推测的用法
Tom can’t be his brother.I know all of his brother.
This pen looks like mine,yet it isn’t. Whose can it be
不可能
可能
can 表示有把握的推测。一般不用于肯定句。can't表示有把握的否定推测，意为“不可能”，后跟动词原形。can可用于疑问句和否定句中
I'm not sure about it. You could be right.
You couldn’t have left it on the bus,could you
could表示不太有把握的推测，意为“可能”，后跟动词原形，可用于肯定句、疑问句和否定句中，否定形式是could not或couldn't，意为“不可能”。
情态动词can/could表推测的练习
1.选词填空。
You ______ be right, but I don't think so. (need/could)
could
2.选词填空。
That ______ be Mark in the mall, because I saw him at school just now. (mustn't/can't)
can't
3.翻译句子。
—那边的人不是David的哥哥吗？
—不，肯定不是他。我确定他没有穿牛仔裤。
-Isn't that David's brother over there
-No, it ______ be him. I'm sure he doesn't wear jeans.
can't
4.完成句子。
-打扰一下，请问你能告诉我蓝天宾馆在哪儿吗？
-往前直走两个街区就能到了。你不可能会错过的。
-Excuse me, could you tell me where the Blue Sky Hotel is
-It's two blocks straight ahead. You ______ miss it.
can't
情态动词may/might表推测的用法
He may be in his office now.
He might come here today,but he can’t help you.
may和might意为“可能，也许”，经常用来推测不太有把握的事情，may表示的“可能性”比might相对要大一些，might可用于表示委婉语气。它们后面应跟动词原形。
may/might表推测时通常用于肯定句或否定陈述句。
情态动词may/might表推测的练习
1.选词填空。
We ______ go to New Zealand for the summer holiday, but we haven't decided yet. (may/will)
may
2.首字母填空。
-Where's Jeff
-I'm not sure. He m______ be playing football on the playground.
ay/might
3.翻译句子。
Simon忙于他的作业，但他可能会去派对。
Simon is busy with his homework, but he ______ go to the party
ay/might
4.完成句子。
今年夏天我们也许不会去长城，因为我们可能会没有时间。
We ______ ______ go to the Great Wall this summer, because we _____ _ have no time.
may/might not
may/might
情态动词must表推测的用法
May and Mary must be twins.They really look like each other.
must 表示推测，意为“准是”、“一定是”通常只用于肯定句
If this answer is right,that must be wrong.=If this answer is right,that can’t be wrong.
must在否定句或疑问句中用 can 代之
He must be wrong. 他一定错了
must后接动词原形，表示对现在情况的推测
情态动词must表推测的练习
1.选词填空。
The computer is on, so someone ______ be using it. (must/can)
must
2.翻译句子。
Tony一定非常高兴见到你，你俩高中后就没见过了。
Tony ______ ______ overjoyed to see you. You two haven't seen each other since high school.
must
be
3.翻译句子。
他工作一直很努力，他现在肯定正在书房工作。
He always works very hard, and he ______ ______ _____ _ in the study.
must
be
working
4.根据中文意思补全句子。
我的朋友们一定忘记了我的生日，因为他们没有一个人来我的生日聚会。
My friends ______ _____ _ my birthday, because none of them came to my birthday party.
must
forget
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
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 _____________________________.
getting colder/ cold outside
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。
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
— 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
— ______ 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
C
A
—Who’s singing in the garden
—It ______ be Mr. Brown. He always practices singing at this time.
A. must B. can’t C. need
I ______ follow you. Would you please repeat it
A. can’t B. mustn’t
C. needn’t D. shouldn’t
A
A
-- Do you have any plans for this Sunday
-- I'm not sure. I _______ go to the countryside to see my grandmother.
A. can B. must C. may D. need
-- Do you have any plans for this summer vacation
-- I’m not sure. I _______ take a trip to Taiwan.
A. must B. need C. may D. should
C
C
根据句意, 从方框中选择正确的情态动词填空, 每项限用一次。
should, must, can’t, may not, mustn’t
1. That ______ be Lucy. She has gone to
Beijing on business.
2. There _________ be something wrong
with my watch. It isn’t working now.
can’t
must
3. He ________ know the answer, either.
Let’s ask that policeman.
4. You _______ swim in the river. It’s
dangerous.
5. You ________ look after your parents
when they become older. It’s your duty.
may not
mustn’t
should
用must, might, could或can’t 填空
The toy car _______ be Jim’s. He is the
only kid at the picnic.
2. This Mp5 _______ be Linda’s. I know she has one.
3. The mobile phone _______ belong to
Lucy or Lily. They both have mobile
phones.
4. The man _______ be Mr Smith. He has
gone to Shanghai and he’ll be back in
three days.
must
could / might
could / might
can’t
It could be/might/can’t
be… because…
Discussion
I guess so/I don’t think
so. But it might/could/
must be… because ...
Summary
情态动词的定义
情态动词的语法特征
情态动词can, may, might, must等的用法
拓展情态动词句型结构