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(共15张PPT)
1. Letters from Father Christmas could be the perfect book.
Possibly/Maybe /It’s possible that Letters from Father Christmas is the perfect book.
2. The children must have been very excited as they opened it.
I am sure/Definitely the children were very excited as they opened it.
3. ---they might not receive their presents if they were not good.
Possibly/Maybe /It’s possible that they would not receive their presents if they were not good.
2. Letters from Father Christmas could be the perfect book.
Letters from Father Christmas must be the perfect book.
Letters from Father Christmas might be the perfect book.
possibly/maybe
definitely/surely
possibly/maybe
3. (1)The children must have been very excited as they opened it.
The children could have been very excited as they opened it.
(2) ---they might not receive their presents if they were not good.
---they could not receive their presents if they were not good.
possibly/maybe
definitely/surely
possibly not /maybe---not
definitely not /surely not
1. That is why Letters from Father Christmas could be the perfect book ---.
2. Who could it be from
3. The children must have been very excited as they opened it.
4. ---each must have taken its true author ,---
5. ---that they might not receive their presents if they were not good.
6. ---Tolkien may indeed have been the real Father Christmas.
Now conclude sentences with modals indicating possibility in the reading passage.
possibly/maybe
possibly/maybe
definitely/surely
definitely/surely
possibly/maybe
possibly/maybe
情 态 动 词 表 推 测 (speculation/prediction)---3 types of situation
1. Must 表推测
You didn’t have breakfast today.
You must be very hungry now.
b. Look! All the students are in the classroom.
They must be having class now.
c. The playground is wet this morning.
It must have rained yesterday.
present
now
past
一定…
一定正在…
一定已经做了…
Conclusion:
Must 表推测 用于肯定句，表一定，确定（definitely/sure）
2.may/might表推测
Look. Who is that boy in yellow T shirt
He may be a student in our school.
What is he doing
He may be taking exercise.
The window may/might have been broken by the boy in yellow.
表可能是: possibly/maybe
表可能不：possibly not/ maybe …not
present
now
past
Conclusion:用于肯定句和否定句（没有把握not sure）
3. Can/could表推测– 常用疑问句和否定句中
TOM : Can/could the window have been broken last week
Peter : It couldn’t have been broken last week, because I saw it was ok yesterday.
TOM : Look, there is a boy in yellow. Can it be Tom
Peter : It can’t be Tom! He has gone to Paris this morning .
表推测
一定
可能吗？
不可能
可能、可能不
想必应该
Must
Can/could…. Can’t/couldn’t
May/might（ｎｏｔ）
should
You must be tired now!
It may/might/could be him.
be Lucy.
That must
may / might / could be from our school.
They
that can’t be Lucy.
Black Friday
Describe the picture with modals, including guesses and reasons.
Activity 5
Look at the picture and make as many sentences as possible using can / could, may / might and must.
The man with a wallet in his hand might be a bit reluctant to pay.
The woman with glasses may be very tired, carrying so many bags.
The cashier might be feeling nervous to deal with so many customers as he is sweating a lot.
People standing in line could be anxious/impatient to wait so long.
Example: The woman in red must be very excited to do a big shop.
Homework:
Mini-writing-----Describe the picture with modals within 80 words.

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