课件39张PPT。Unit 8It must belong to Carla.情态动词专项讲解 (making guesses)modal verbs 表示推测的情态动词
在英语中,表示对某件事物的确定程度,即表示推测的时候,我们通常会用到以下情态动词: must, might, could, may, can’t, couldn’t。mustcan’tprobably truepossibly truealmost not true情态动词对现在的推测Revison★情态动词+ do/be(此结构表示对现在或将来情况的推测和判断)Whose skirt do you think this is?It must belong to Jane.
(=It must be Jane’s.)
JaneMikeBecause she is a girl.
(Because boys don’t wear skirts.)Whose notebook is this?Why?Because his name is on the book.It must belong to Wang Gang. =It must be Wang Gang’s.
(-It_______ belong to Bob. )
Because___________________Bob-Whose red bicycle is this ?can’this bike is white and blue.-It_______ be Bob’s. can’tWhat does she do?She could/might be a/an______.nurseWhat does he do?doctorWhere is he from?He can’t be from…
He could/might be from….
He must be from…
Where does she come from?She can’t come from… She could/might come from….
She must come from…
a girl /a girl’s face some birds Can you guess what it is ?a horse , a dog , a mousean elephant
___________
___________.a dogtwo girlstwo facesa vase(花瓶)
情态动词推测正在发生的动作Let’s learn! ★ 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 must be watching Tv at home.What is the man doing?
must
could
might
can’t+ be + doing
must
could
might
can’t+ be + doing
must
could
might
can’t+ be + doingWhat is the panda doing?一名同学在前面做动作,其余的同学猜他可能是在做什么?
用我哦
must
could
might
can’t+ be + doingLet’s act !★情态动词+ have done???? 情态动词对过去情况的推测和判断Let’s learn!The road is wet. It must have rained.?★归纳:must +have done sth
一定是/想必是做过某事1.Her eyes are red. She must ________________.
2.My cake is not on the table. You must__________________.
3. His face is so hot. He must_______________. have criedhave eaten it.have had a feverThe light in the room is on. My mom might have come back home. ★归纳:may/might +have done sth
可能已经做了某事
1.You might __________ about it in the newspaper.
(read)
2.It’s seven. Tom might ___________________.
(get up)
3.-What has happened to Jim?
-I don’t know. He may___________(lose) his way.have readhave got uphave lost情态动词专项练习consolidation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
That ______ be Lucy. She has gone to Beijing
on business.
2. There _________ be something wrong with
my watch. It isn’t working now.can’tmust3. 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’tshould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 hear that 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. mustcould / mightcould / mightcan’t【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中考链接B【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 muchA【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 D. can’t
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 C
【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 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 D.shouldn’t
【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【2015安徽】 -- 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
【2015江苏盐城市】 -- Do you have any plans for this summer vacation??-- I’ve no idea. I _______ take a trip to Taiwan.? A. must B. need C. might D. should? C C 晚上八点多 ,突然听到有敲门声,请你根据下面的词组提示,写几句话来猜测是谁在敲门,并写出理由。
要求:你可参照以下句型can’t be a parent, at home;
can’t be a thief, knock at the door;
might/ could be a neighbor, want some help;
must be my aunt, like to…Discuss and write4a Choose the best way to complete each
sentence using the words in brackets.
The keys:might bemust becould becan’t becould be / must beA: 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 crowded.
B: The food _______________________.
4. A: Whenever I try to read this book, I feel sleepy.
B: It can’t __________________.4b Complete these responses.getting colder / cold outsidehaving a sore throat / illmust be deliciousbe that boring