1. Unit 5 It must belong to Carla
Period 1

2. Guess: What’s it ?
It could / might be a/an …
It must be a backpack.

3. Guess: Whose backpack is it ?
Bob
Mr. Li
Mary
It can’t be Mr Li’s.
It might / could be Bob’s or Mary’s.

4. I’m sure it is Mary’s notebook.
What’s in the backpack?
Whose notebook is this?
I’m sure it is Mary’s notebook.
Mary
It has her name on it .
It must be Mary’s.
It must belong to Mary.
The backpack must belong to Mary.

5. Where are they?
What are they doing there?
They are at the picnic .

6. Whose things are these? 1a Look at the picture. Write the things you
see in the correct columns in the chart.
Clothing
Fun things
Kitchen things
hat
volleyball
plate
T-shirt CD
cups
toy car
jacket
magazine
Whose things are these?
book
The hat, the jacket and the T-shirt must belong to Clothing.

7. Jim likes playing volleyball.
Whose volleyball is it?
I think it is Jim’s, but I’m not sure.
Jim
It might be Jim’s.
It might belong to Jim.
Jim likes playing volleyball.

8. = Whose hat is this? might It could be Tony’s.
I think it is Tony’s, but I’m not sure.
might =
It could be Tony’s.
It could belong to Tony.
Tony
He likes wearing the hat.

9. Hemingway is Mary’s Favorite author.
Whose book is it?
It must be Mary’s.
It must belong to Mary.
Hemingway is Mary’s Favorite author.

10. It’s much too small for him
Whose T-shirt is this?
It can’t be John’s.
It can’t belong to John.
It’s much too small for him
John

11. can’t be must be Whose toy car is this? It ___________ Mr Smith’s.
It __________ Peter’s.
He is the only kid there.
must be
Peter
Mr. Smith

12. hair band Whose is this? can’t be must be could / might be
It _______ _____a boy’s.
must be
It _________ _________a girl’s.
could / might be
It _________ ____________ Ann’s.

13. 1b
Listen and match each person
with a thing and a reason.

14. Hemingway is her favorite author.
1c Pair Work.
Practice the conversation in the picture above. Then make conversations using the information in the chart in 1b.
A:Whose book is this?
B:It must be Mary’s.
Hemingway is her favorite author.

15. game time All the students, close your eyes.
I will pick up several things from your desk.
Then open your eyes, and guess in pairs.
A: Whose book is this?
B: It muse be Mary’s. Hemingway is her favorite author.

16. Things in the backpack 1. T-shirt 2. 3. hair band tennis balls
Bob and Anna found a backpack in front of their school. Listen and write down the things in the backpack.
Things in the backpack
1. T-shirt 2. 3.
hair band
tennis balls

17. 2b Listen again. Fill in the blanks.
The person ________ go to our school.
The person ________ be a boy.
It ________ be Mei’s hair band.
The hair band _______ belong to Linda.
It ________ be Linda’s backpack.
must
can’t
could
might
must

18. Listening text Bob: Oh, look! Whose backpack do you think this is?
Anna: I don’t know. Look, here’s a school T-shirt.
Bob: Well then, the person ______go to our school. Oh! Here is a hair band, so the person ______be a boy.
Anna: It _____ be Mei’s hair band. She has long hair.
Bob: Or the hair band ________belong to Linda. She was at the picnic, wasn’t she?
Anna: Yes, she was. But then the backpack _______belong to Rita. She’s always forgetting things.
Bob: Oh, look! Tennis balls.
Anna: Then it ________ Linda’s backpack. She has long hair and she’s on the tennis team.
Bob: You’re right!
插入声音
must
can’t
could
might
could
must be

19. Grammar
Can you tell how to use must,might,could and can’t to make inferences?
Use “must” to show that you think something is probably true.
Use “might” or “could” to show that you think something is possibly true.
Use “can’t ” to show that you are almost sure something is not true.

20. must can’t could might 100% probably true 20%-80% possibly true
almost not true

21. 表示“推测”的情态动词 P35 must + 原型-- (肯定是,100%) might/could + 原型… (有可能,20-80%)
He must be working at home.
must + 原型-- (肯定是,100%)
2. might ,could表示推测时，不表示时态.
只表示“可能性较小”.
He might be at home. It could belong to his sister.
might/could + 原型… (有可能,20-80%)
3. can’t 则表 示“不可能”.
He can’t be a bad boy. He often helps others.
can’t + 原型… (肯定不是,0%)

22. exercise
must / might
can’t
might
must
must / might
must
can’t
might

23. Memory challenge There are five people in Dick’s family.
Mr. Smith is a worker.
Mrs. Smith is a housewife.
Dick’s sister Grace is 20. She has long hair and she likes music.
Dick is a 13-year-old boy. He likes sports and can play the guitar.
Mark, Dick’s brother is just 3 years old.

24. Whose …is this? Why?
1. The …might / could / must / can’t be Mr Smith’s,
because …
2. The … might / could / must can’t belong to Mr.
Smith, because…

25. Fill the blanks with must, could, might, can’t
1.Mary __________ be in Paris. I saw her in town
only a few minutes ago
2. The CD _______ belong to Grace. She always
listens to classical music.
3. Peter ________________ come with us tonight,
but he isn’t very sure yet.
4.I thought you ___________ like something to read,
so I have brought you some books.
5.That red car __________ be Carla’s. She has a
blue car
can’t
might/could
might/could .
must
can’t

26. Grammar focus belong to Whose notebook is this?
It must be Ning’s. it has her name on it.
Whose French book is this?
It could be Ali’s. she studies French.
Whose guitar is this?
It might belong to Alice. She plays the guitar.
Whose T-shirt is this?
It can’t be John’s. it’s much too small for him.

27. Homework
P 单词抄3默1
Period 1
作业本1（1）
完成P35 2c

28. Unit 5 It must belong to Carla
Period 2

29. must can’t could might 100% probably true 20%-80% possibly true
almost not true

30. 表示“推测”的情态动词 P35 must + 原型-- (肯定是,100%) might/could + 原型… (有可能,20-80%)
He must be working at home.
must + 原型-- (肯定是,100%)
2. might ,could表示推测时，不表示时态.
只表示“可能性较小”.
He might be at home. It could belong to his sister.
might/could + 原型… (有可能,20-80%)
3. can’t 则表 示“不可能”.
He can’t be a bad boy. He often helps others.
can’t + 原型… (肯定不是,0%)

31. Guess
Where is the picture on?
It could / might be on …
It must be on a plate.

32. Challenge your eyes It ______ be ______. It could be a girl.
can, might, could, must
It could be a girl.
It might be an old man.

33. Challenge your eyes It ______ be ______. It could be two girls.
can, might, could, must
It could be two girls.
It might be a dog.

34. Challenge your eyes There ______ be ______. There could be a bridge.
can, might, could, must
There could be a bridge.
There might be many boats.

35. Challenge your eyes worried / anxious What’s wrong with Linda?
I am anxious / worried when I fail the big exam.

36. a thank-you message to Anna
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).
____I really need it because I have a math test tomorrow. It’s crucial
that I study for it because it makes up 30% of the final exam.
____I’m really anxious, because I can’t find my backpack.
Thanks,
Linda

37. 1) What’s the matter with Linda?
2) Why does she need it?
3) What does she deal with her problem?
4) Where might it be?
And when was it dropped?
She can’t find her backpack.
Because she will have a math test tomorrow and it makes up 30% for the final exam.
She asked Anna to help her.
She dropped it during the concert so it might still be in the symphony hall.

38. 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).
____I really need it because I have a math test tomorrow. It’s crucial
that I study for it because it makes up 30% of the final exam.
____I’m really anxious, because I can’t find my backpack.
Thanks,
Linda 5 2 4 3 1

39. anxious, crucial, final, nice
I hope this dictation will count 20%
to the ________exam.
2) It’s ________for everyone to have
enough sleep before big exams.
3) He felt _______for his grade
because he lost his papers.
4) Your new glasses look pretty
______.
final
crucial
anxious
nice

40. 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.
A: What do you think “crucial” means?
B: Well , it can’t mean “easy”.
A: It might mean “ important”.
B: Oh, yes. It’s crucial because it counts % to the final exam.

41. New words
Task Two
When you read the message , you must meet some words you don’t know.
Let’s read them:
drop
symphony
optometrist
crucial
make up
final
anxious
worried
Let’s talk about them using can’t, must, could or might.
A: What do you think “anxious” mean?
B: Well, it can’t mean “happy”.
A: It might mean “worried”.
B: Oh, yes. She is worried
because of her test.

42. Make guesses about the owner of the backpack.
Guessing
Make guesses about the owner of the backpack.

43. A: Here’s a school T-shirt.
The owner must be a student.
B: Well, it could be a classmate
of ours. The school T-shirt is
the same as ours.
A: Here’s a hair band.
The owner can’t be a boy.
B: Well, it could be a boy.
The hair band might be
a present for his mother.

44. Life in the future --I think we will have a more comfortable/
What our life will be in the future. Please discuss with your partner . Use must, might, could and can’t for making inferences.
--I think we will have a more comfortable/
convenient / worse life.
-- Why do you think so?
-- In the future, we must, might, could , can’t …

45. Homework

46. P36 单词抄3默1 Period 2 作业本2（2） 作业: belong to , picnic, possibly, might
must, must belong, Whose, Mary’s
特训 picnic, author, might, must
ABDABA
must be, favorite author
listening classical music
only little kid, on the school basketball team
much too short
P36 单词抄3默1
Period 2
作业本2（2）

47. optometrist