Unit 8 It must belong to Carla. Section A Grammar focus 4a-4c 课件(共24张PPT)

(共24张PPT)
Unit 8 It must belong to Carla
Section A
Grammar Focus 4a-4c
can, could…
Whose volleyball is this It must be Carla’s. She loves volleyball.
Whose hair band is this It could be Mei’s hair band. Or it might belong to Linda. They both have long hair.
What did you see that night I’m not sure, but it can’t be a dog. It was bigger. I think it might be a bear or a wolf.
Grammar Focus
must
can’t
might
could
100% true
most probably true 准是，一定
20%～80% true
possibly true 可能，有可能
0% true
almost not true不可能
I’m Lily. I like dancing.
Lily may become a dancer when she grows up.
This football can’t be Lily’s.
It must be Li Ming’s.
I’m Li Ming.
I like playing football.
The little dog must be hungry.
The man must have a toothache.
Tom drives to school every day.
He must have a car now.
These students are on the playground.
They can’t be reading in the library.
Lily looks happy.
She must have finished the work.
(对现在情况的推测)
(对正在进行的动作的推测)
(对过去动作的推测)
Keep in mind:
情态动词+do
情态动词+be doing
情态动词+have done
Guess who can be its owner
Can you be a great detective
1. A: Where’s Jean
B: I’m not sure. She _________ (is / might
be / must be) in the laboratory.
2. A: Everyone is going to the pool after
school.
B: Really It _________ (must be / can’t
be / could be) hot outdoors.
Choose the best way to complete each sentence using the words in the brackets.
4a
might be
must be
3. A: That’s the phone.
B: Hmm. I wonder who it ________ (must
be / could be / should be).
4. A: I wonder if these are Jim’s glasses.
B: They ________ (can’t be / might be /
could be) his. He doesn’t wear glasses.
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
can’t be
must be
Complete these responses
1. A: Many people are wearing coats.
B: The weather _____________ .
2. A: Sally has been coughing a lot.
B: She __________ .
A: This restaurant is always crowded.
B: The food _______________ .
A: Whenever I try to read this book, I feel
sleepy.
B: It ________________.
4b
can’t be interesting
must be cold
might be ill
must be delicious
Look at this picture of a room. How much can you tell about the person who lives here
It could be a girl’s room because it’s very tidy.
I guess so. But it might be a boy’s room because the clothes look like boys’ clothes.
4c
情态动词 用法 例句
must 表示很有把握的推测，意为“一定”，只用于肯定句。 The light is out. He must be sleeping.
could 和might 表示不太有把握的推测，意为“可能”。 The pen might be Joe’s. I saw it on his desk just now.
can’t 表示很有把握的否定推测，意为“不可能”。 The girl here can’t be Helen. Helen has gone to Beijing.