(共24张PPT)
Grammar
Unit 8 It must belong
to Carla.
1. can, may, must,
could, might, must
2. shall, will
should, would
3. be able to, have to
4. need, dare
1. 会运用不同的情态动词表示推测。
2. 会梳理情态动词的用法。
3. 学会整理自己的东西,井井有条。
1. --- Whose notebook is this
--- It must be Ming’s. It has her name on it.
2. --- Whose French book is this
--- It could be Carol’s. She studies French.
3. --- Whose guitar is this
--- It might belong to Alice. She plays the guitar.
4. --- Whose T-shirt is this
--- It can’t be John’s. It is too small for him.
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。
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表示推测“可能性”时,一般用于否定句。
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。
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
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)
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
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.
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
【浙江湖州】 — Who’s singing in the next room
— It ____ be her. She has gone to New York.
A. can’t B. must
C. shouldn’t D. can
A
【2011湖北黄冈】41. —Whose T - shirt is this
—It ______ be John' s. It’s ______ small for him.
A. can't; much too B. can't; too much
C. mustn't; much too
D. mustn't; too much
A
【2013天津】— Where are you going this month
— We______ go to Xiamen, but we're not sure.
A. needn’t B. must
C. might D. mustn't
C
【2013福建泉州】--- Have you decided where to go for your summer vacation
--- Not yet. We _______ go to Qingdao. It's a good place for vacation.
A. may B. need C. must
A
【2014铜仁】— 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
【2014连云港】— ______ 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
【2014长沙】—Who’s singing in the garden
—It ______ be Mr. Brown. He always practices singing at this time.
A. must B. can’t C. need
【2014河北】I ______ follow you. Would you please repeat it
A. can’t B. mustn’t
C. needn’t D. shouldn’t
A
A
Homework
Copy the new word and the phrases.
2. Preview the next lesson.
3. Finish the exercises.