(共32张PPT)
Section A Grammar-4c
Unit 8
It must belong to Carla.
Let's review some phrases:
1被允许做 2 做出选择
3 做兼职的工作
4 实现我的梦想 5 属于
6 attend a concert
7 someting valuable
8 in the end
9 pick up
10 keep off
Look and guess.
Who is she
She can’t be Guo Jingjing.
She may / might/could be Wang Nan.
She must be Zhang Yining.
Oh, yes. She is Zhang Yining.
He may/might/could be....
I know he must be
Who is he
Yi Jianlian.
Whose notebook is this
It has her name on it.
= It must belong to Mary.
It must be Mary’s.
belong to sb.“属于某人”
Mary
Whose skirt is this
Jane
Mike
It must belong to Jane.
It can’t belong to Mike.
Because she is the only woman here.
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.
Whose volleyball
must Carla’s
Fill in the blanks.
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
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
可能性: must> can/could > may/ might
can not ( can’t)
could not (couldn’t)
may not / might not
否定
否定
must
can’t
could
might
100%
probably true
20%~80%
possibly true
0
almost not true
Grammar Focus
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.
一定100﹪
可能20--80﹪
可能20--80﹪
可能20--80﹪
不可能 0 ﹪
表示可能性最大的肯定推测,意思是“一定、准是”。只能用于肯定句。如果要表示“一定不”,应该用can’t。如果询问可能性时,应该用can。
e.g.
He must know the answer.
他肯定知道答案。
He can’t know the answer.
他肯定不知道答案
Can he know the answer
他知道答案吗?
can表示推测“可能性”时,一般用于否定句或疑问句。can在疑问句中意思是“会,可能”。
e.g. He can’ t pick her schoolbag up.
他不可能拿了她的书包。
could 用于表示某事有可能发生或可能是事实。
e.g. Don’t eat it. It could go bad.
不要吃它,它可能坏了。
The plane could be put off by the storm.
这趟飞机可能会因为暴风雨而推迟。
could可用于表示客气、礼貌、委婉的
请求语气。
e.g. Could you please help me with my homework
你能帮我完成我的家庭作业吗?
may, might表示推测“可能性”时,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。may,might表推测时,可用于否定句,但不用于疑问句。
e.g. 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. — Excuse me. Is this the right way to the Summer Palace
— Sorry, I am not sure. It _____ be.
A. might B. will
C. must D. can
Choose the correct answer.
Exercise
2. — Isn’t that Ann’s husband over there
— No, it _____ be him — I’m sure he doesn’t wear glasses.
A. can’t B. must not
C. won’t D. may not
3. You ____ be tired — you’ve only been working for an hour.
A. must not B. won’t
C. can’t D. may not
4. — Is John coming by train
— He should, but he _____ not. He likes driving his car.
A. must B. can
C. need D. may
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.
might be
n. 实验室
2. A: Everyone is going to the pool after school.
B: Really It _______ (must be / can’t be /could be ) hot outdoors.
must be
表示“位移”的动词用现在进行时态表将来,例如:go去,come来,leave离开,arrive到达,return 回来,fly 飞。
e.g. I am coming.=I will come.
He is leaving for Paris.=He will
leave for Paris.
adv. 在户外,在野外
3. A: That’s the phone.
B: Hmm. I wonder who it _______ (must
be / could be / should be).
could be
4. A: I wonder if there are Jim’s glasses.
B: They _______ (can’t be / might be /
could be) his. He doesn’t wear glasses.
can’t be
* wonder v. “想知道” (want to know)
No wonder + 句子,“难怪.....”
e.g. No wonder you are angry. 难怪你觉得生气。
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
* think of 想要;打算
e.g. I thought of playing basketball.
我想打篮球。
1. A: Many people are wearing coats.
B: The weather must be _____________
____________.
2. A: Sally has been coughing a lot.
B: She might be _____________________.
getting colder/ cold outside
having a sore throat/ ill
4b
Complete these responses.
n. 外套
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 _______________.
must be delicious
be that boring
adj. 困的
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
It could be a girl’s room
because it’s very tidy.
I guess so. But it might be a boy’s room because the clothes look like boys’ clothes.
It could/might/can’t be...
because ...
I guess so/I don’t think so.
But it might/could/must be ...
because …
Summary
Make inferences with Modal Verbs.
The usage of “must”, “might”, “could” and “can’t”.
Summary