课件40张PPT。新目标九年级英语Unit5
period1表示推测的情态动词can表 “可能”常用于疑问句和否定句。
表 “不可能”常用can’t
must, may, might, can, could, can’t确信程度must > may > might / can > couldSummarizeWho is the man?He can’t be Bill Gate.?他不可能是比尔·盖茨。He may be Liu Xiang.他也许是刘翔。He must be Liu Dehua.他一定是刘德华。Oh, yes. He is Liu Dehua.can’t在此表示猜测,译为“不可能”,后接动词原形。Leading inLook and guessmay在此表示猜测,译为“也许,可能”,后接动词原形。must在此表示猜测,译为“肯定,极可能”,后接动词原形。Who is he?He can’t be …
may (could) be …
must be …?Look and guess. Using “can’t, may, must”
Who is he?
must, may, might, can’t, couldWhose notebook is this?belong to “属于”
此句相当于
It may be Wang Gang’s.
It must be Wang Gang’s.
It can’t be Wang Gang’s.
It may belong to …
must belong to …
can’t belong to …Whose skirt is this?It must belong to Jane.
(=It must be Jane’s.)
JaneMikeBecause she is a girl.
(Because boys don’t wear skirts.)Wu NingWhose notebook is this?
It must be Wu Ning’s.
It has her name on itWhose guitar is this? XiaomingFredIt might belong to Fred. He likes music. Can this
T-shirt be
John’s?It can’t be John’s. It’s much too small
for him.
John 可能
What can the two boys be watching?
You can go and ask them, but they may not answer you. 可能不
Look at the picture. Write the things you see in the correct columns in the chart.1ajacketmagazineT-shirttoy carCDmagazinebookjacketcupsWrite the things you see in the correct columns in the chart.Listen and match each person with a thing and a reason.1bModel:
A: Whose book is this?
B: It must be Mary’s.
Hemingway is her favorite author.作家PAIRWORK1cAsk and answer like the model.Sample dialogue 2:
A: Look! Whose toy car
is this?
B: It must be Jane’s little
brother’s. Because he
was the only little kid
in the picnic.Sample dialogue 3:
A: Whose CD is this?
B: It must be
Grace’s. Because
she always listens
to classical music.Things in the backpack
1.
2.
3.T-shirthair bandtennis ballsBob and Anna found a backpack in front of their school. Listen and write down the things in the backpack.2aListening practice1. The person go to our school.
2. The person be a boy.
3. It be Mei’s hair band.
4. The hair band belong to
Linda.
5. It be Linda’s backpack.mustcan’tcouldmightmustListen again. Fill in the blanks.2bListening practice1. The notebook be Ming’s.
It was on her desk.
2. The homework be Carol’s.
She wasn’t at school today.
3. The soccer ball be John’s or Tony’s.
They both play soccer, don’t they?must/mightcan’t might Fill in the blanks with “must”, “might”, “could” or “can’t”. Then tell your partner why.2c4. The French book be Li Ying’s.
She’s the only one who’s studying French.
5. I can’t find my backpack. It be
still at school.
6. The photo be Lu’s.
Those are his parents.
7. The red bicycle be Hu’s.
She has a blue bicycle.
8. This ticket be my aunt’s or uncle’s.
They’re both going to the concert.must/mightcan’t mightmust 2cmust 表示推测的情态动词小结1.can用在否定句或疑问句中时表示说话人的“推测”和“不确定”
例如:1.Where can he be?
2.It may be the headmaster.
No, it can’t be him. He has gone to Shanghai.
could 也有怀疑和不确定的意思(在否定句中和疑问句中)
例如:1. At the time, we thought the story could be true.
2. He couldn't be a bad man
2.may 表示说话人的猜测,认为某一事情“或许”或“可能”发生。
There may be a terrible storm in the following few days.
might 表示推测时,不表示时态。只表示可能性更小。
He might be at home.3. must用在肯定句中表示较有把握的推测,意为“一定”。
He must be working at home.
must 表示对已发生的事情的推测时, 要接完成式 .
The road is wet. It must have rained last night could
mightmustcan’t100%
probably true20%-80%
possibly true0
almost not trueGoodbye!Dear Anna,
____If you have any idea where it might be, please call me.
______ I think I dropped it during the concert so it might still be in the symphony hall.
______ I tried to call you but your mom said you were still at your optometrist appointment (I hope your new glasses look nice!)落下;掉下交响乐;交响曲验光师约会. 2453aRead and number the parts in order and circle the new words._____I really need it because I have a math test on algebra tomorrow. It’s crucial that I study for it because it counts 30% to the final exam.
_____ I’m really anxious, because I can’t find my backpack.
Thanks,
Linda13代数关键的;至关重要的计;值最后的;最终的忧虑的;焦虑的;不安的A: What do you think “anxious” means?
B: Well, it can’t mean “happy”.
A: It might mean “worried”.
B: Oh, yes. She’s worried because of her test.PAIRWORK3bTalk about the words you don’t understand. Using “can’t”, “must”, “might”.PAIRWORK4Guess the owner of the backpack.Model A: Here are some earrings. The owner can’t be a boy.
B: Well, it could be a boy. The earrings might be a present for his mother.1. must用于肯定句,表示较有把握的推测,意为“准是;一定”。后接动词原形,表示对现在情况的推测。例如:He didn’t hear the phone. He must have been asleep.
他没有听到电话响,他肯定是已经睡着了。情态动词表推测用法小结情态动词 must, should, can, may, could, might
都可表示推测。一、肯定推测3. could, might 表示推测,常用在过去时态中;但在某些场合,为了使语气更委婉,常用could和might代替can和may。例如:2. may用在肯定句中,表示对现在把握不大的推测,意为“也许;可能”。例如:This story may be true. 这个故事也许是真的。We saw something in the sky last night. It could / might be a UFO.
昨天晚上我们看见天空中有个东西。它有可能不明飞行物。二、否定推测1. 表示否定的推测时,can’t / couldn’t语气最强,指“不可能”,带有惊讶、怀疑的感彩。例如:The story sounds reasonable, but it can’t be true.
这个故事听起来合情合理,但不可能是真的。2. 语气不很肯定时,常用may not或might not
表否定推测,意为“可能不;也许不”。例如:Simon may not / might not be in the classroom.
西蒙可能不在教室里。Whose can it be? Can it be Tom’s?
那能是谁的呢? 是汤姆的吗?三、疑问句中的推测疑问句中的推测,常用can或could, 意为“可能”。例如:1. The old house over there _______ my grandfather.
belong B. belongs to
C. is belonged to D. belong to
2. It must be ______ building in the small town.
A. the only modern B. modern only
C. only the modern D. only modern
3. The boy hardly did sports, so his mother felt very ________ about his health.
A. nervous B. stressed
C. hard D. anxiousI. 单项选择。BDA4. After a long walk, the old man _____ be tired now.
A. must B. has to
C. need D. can
5. He’s late, he’s _____ stuck in a traffic jam.
maybe B. might
C. probably D. possibly
6. She expressed regret for any inconvenience
which might _____ be caused.
A. possibly B. probably
C. maybe D. perhaps
AAC7. There is ______ snow. Put on your coat. It’s
______ cold today.
A. too much; much too
B. too much; too many
C. much too; much too
D. too much; too much
8. _________ your health.
A. Be careful for B. Be careful to
C. Be careful of D. Be careful about
9. We were late for school last Wednesday _____the heavy rain.
A. as B. because of
C. because D. sinceABC1. The textbook _____ be his. It has his name on it.
2. The beautiful trousers ______ be Jim’s. They are too long.
3. The football _______ be Wei Hua’s or Tian Hui’s. They both play football.
4. —Where is Xiao Ling?
—She _____ be in her bedroom, but I am not sure.
5. After a long walk, the old man _______be tired now.I. 用must, may, might或can’t 填空。mustcan’tmightmaymust