Unit 8 It must belong to Carla. Section A (Grammar Focus~4c) 课件(共16张PPT) 2024-2025学年人教版英语九年级全一册

(共16张PPT)
Unit 8
It must belong to Carla.
Section A (Grammar Focus~4c)
Play a guessing game
It must/might/could/can’t be...
What kind of animal is it
能熟练运用情态动词must, might, could, can’t作出推测。
1
能掌握表推测的情态动词must, might, could, can’t的用法。
2
分组朗读并观察下列句子。
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.
Divide the whole class into 3 groups and
each group discusses one question.
1 组
2 组
3 组
Group 1：结合前几节课的内容，回忆归纳情态动词must, might, could, can’t的意义和用法？
Group 2：情态动词must, might, could, can’t分别用在什么句式中？
Group 3：情态动词表示推测在不同时态下有哪些结构形式？
提前完成的小组可思考其他问题，稍后可做补充回答。
目标一: 能掌握表推测的情态动词must, might, could, can’t的用法
讨论时间过后，请三组的同学派代表依次回答下面的问题。
Activity 1
Group 1：结合前几节课的内容，回忆归纳情态动词must, might, could, can’t的意义和用法？
Group 2：情态动词must, might, could, can’t分别用在什么句式中？
Group 3：情态动词表示推测在不同时态下有哪些结构形式？
结合前几节课的内容，回忆归纳情态动词must, might, could, can’t的意义和用法？
推测可能性：must﹥could﹥might﹥can’t
must在此表示猜测, 译为''肯定,极可能'', 后接动词原形。
can't 在此表示猜测,译为 ''不可能'', 后接动词原形。
might/could在此表示猜测,译为
''也许,可能'',后接动词原形。
Summary 1
情态动词must, might, could, can’t分别用在什么句式中？
Summary 2
句式 情态动词 用法 意义 例句
肯定句 must 表示有把握的肯定推测 一定； 肯定 Miller must be very tired after a long journey.
could/may/ might 其肯定程度逐渐减弱，表示把握不大的推测 可能
It might rain this afternoon.
否定句 can’t 表示有把握的否定推测 不可能 Amy can’t be at school. It’s Sunday today.
疑问句 can/ could 表示推测 可能 Can Peter still be alive after so many years
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.
肯定句
否定句
情态动词表示推测在不同时态下有哪些结构形式？
Summary 3
结构形式 用法 例句
情态动词 + 动词原形 表示对现在的事情的推测 Something must be wrong with my bike.
情态动词 + be + 动词的 -ing形式 表示对正在发生的事情的推测 My brother might be having
breakfast at home.
情态动词 + have + 动词 的过去分词 表示对过去或已经完成的事情的推测 I must have put my keys
somewhere in the bedroom.
目标二: 能熟练运用情态动词must, might, could, can’t作出推测
Activity 1
4a
Choose the best way to complete each sentence using the words in brackets.
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.
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
4b
Complete these responses.
1. A: 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 very crowded.
B: The food ________________.
4. A: Whenever I try to read this book, I feel sleepy.
B: It can’t ______________.
getting colder/ cold outside
having a sore throat/ill
must be delicious
be that boring
sleep, sleepy & asleep的辨析
sleep, sleepy和asleep这三个词都与“睡觉”有关，但它们的含义和用法有区别。
单词 词性 含义 用法 例句
sleep 名词 睡眠 不可数名词 Just lie down and get enough sleep.
一次睡眠；一段睡眠时间 前可加a I’ll go upstairs and have a sleep.
动词 睡觉；睡 不及物动词 Did you sleep well last night
单词 词性 含义 用法 例句
sleepy 形容词 困倦的；瞌睡的 既能作定语，也能作表语 Do you know the sleepy girl
I’m too sleepy to finish my report.
asleep 形容词 睡着的 通常作表语；常和be或fall搭配使用 If I am asleep on the bus, please wake me up when you get off the bus.
4c
Look at this picture of a room. How much can you tell about the person who lives here Is it a boy or a girl What are his / her hobbies Discuss your ideas with a partner.
A: It could be a girl’s room because it’s very tidy.
B: I guess so. But it might be a boy’s room because
the clothes look like boys’ clothes.
Activity 2
Pair work
学习目标
通过本堂课的学习，你学到了什么？
能掌握表推测的情态动词must, might, could, can’t 的用法。
1
能熟练运用情态动词 must, might, could, can’t
作出推测。
2