(共28张PPT)
Unit 8 It must belong to Carla.
人教版 英语 九年级上册
Section A 3a-4c
Learning goals
1. Curriculum words: noise, policeman, wolf, laboratory, coat, sleepy
4. Sentences：① Whose volleyball is this
② It must be Carla’s. She loves volleyball.
③ It could be Mei’s hair band. Or it might belong to Linda.
3. Grammar：must, might, could and can’t for making references
2. Useful expression：There must be +主语+ doing sth.
Warming up
Did you hear anything unusual
What might be happening
Who is the noise-maker
How do you feel when you hear a strange noise
Free talk
Presentation
Choose the best title:
A. A Small and Quiet Town
B. Strange Happenings in My Town
C. Animals in Our Neighborhood
3a
Read the article, answer the question and decide which might be the best title.
What’s happening in the town
Presentation
Read the article again and find words to match the meanings.
nervous or worried _____________
young people _____________
person in the next house _____________
area where people live _____________
animal like a very large dog _____________
person who makes noise _____________
3b
uneasy
teenagers
(next-door) neighbor
neighborhood
wolf
noise-maker
Presentation
happening / h p n / n. 事件；发生的事
Point
1. Strange Happenings in My Town（教材P59 3a）
Language points
happening作名词，一般用复数形式。
Lying in the bed, he reviewed the day’s happenings.
Presentation
noise /n z/ n. 声音；噪音
Point
2. Every night we hear strange noises outside our window.（教材P59 3a）
Language points
noise既可作可数名词，又可作不可数名词，其形容词为noisy，
意为“吵闹的；嘈杂的”。
make (a) noise 意为“制造噪声，发出声音”。
It’s noisy outside. Let’s go out and see who is making such (a) noise.
Presentation
noise /n z/ n. 声音；噪音
Point
2. Every night we hear strange noises outside our window.（教材P59 3a）
Language points
noise多指不悦耳的吵闹声、嘈杂声，可与make连用。
sound泛指能听见的自然界的各种声音，不带有任何感彩。
voice多指人说话、唱歌的声音，不可与make连用。
They were making too much noise.
Does light travel faster than sound
Many teenagers love the singer because she has a sweet voice.
Presentation
policeman /p li sm n/ n. 男警察
Point
3. My parents called the policemen, …（教材P59 3a）
Language points
policeman为可数名词，复数形式为policemen。与其对应的词为policewoman,
意为“女警察”，复数形式为policewomen。
The wounded policeman is now out of danger.
Presentation
There must be +主语+ doing sth.
Point
4. There must be something visiting the homes …（教材P59 3a）
Language points
该句型表示对现在情况的肯定推测，意为“一 定有…...正在做某事”。
There must be someone waiting for you at the school gate.
There be + 主语 + doing sth.意为“有......正在做某事”。
There are some children swimming in the swimming pool.
Presentation
noise-maker n. 噪音制造者
Point
5. The noise-maker is having too much fun creating …（教材P59 3a）
Language points
noise-maker是一个复合名词，由“名词+名词”构成。这种复合构词法是英语中较为常见的一种构词方式，所构成的名词表达出原词语中的某种动宾关系，不仅可以用来指人，也可指物。在这类复合词中，两个名词中间有的用连字符“-”相连，有的没有，有的直接写成两个分开的词。常见的有：
shopkeeper 店主 gatekeeper 看门人 bottle opener 开瓶器 taxi driver 出租车司机
Who gave opinions What are the opinions
Victor’s wife She thinks that it could be an animal.
Victor and his friends
The policeman
Helen
One woman in the area
The writer himself
Presentation
Read the article carefully and write what people think about the strange noises.
3c
They think it must be teenagers having fun.
They think it might be the wind.
She thought it might be a dog.
She thought it was too big to be a dog. She thought that maybe it was a bear or a wolf.
He thinks the noise-maker is having too much fun creating fear in the neighborhood.
Presentation
Listen and repeat.
Listen to the passage of 3a on Page 59, repeat. Pay attention to imitating the stress and intonation.
Grammar Focus
Read the following sentences and find out the common features.
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.
情态动词表示推测
Grammar Focus
句式 情态动词 含义 用法
肯定句 must 一定 表示有把握的肯定推测。
may/ might/ could 也许；可能 表示没有把握的肯定推测。
否定句 can’t/ couldn’t 不可能 表示有把握的否定推测。
may not/ might not 可能不 表示不太有把握的肯定推测。
疑问句 can/ could 可能 表示推测。
情态动词表示推测的意义和用法
Grammar Focus
He must be very happy when he heard the news.
He may be in his office but I’m not sure.
That man can’t be your teacher. He’s much taller.
It may not be right, but that’s what I think.
— Can the news be true
— No, it can’t be true.
情态动词表示推测的意义和用法
Grammar Focus
（1）情态动词表示推测时，无时态区别，只有语气差别。表示推测的情态动词的语气强弱顺序如下（由强到弱）：
must ＞ can ＞ could ＞ may ＞ might
（2）含有must的句子（must表推测）变为否定句时，要用can’t。
He must be at home. →
He can’t be at home.
情态动词表示推测的意义和用法
Grammar Focus
（1）情态动词+动词原形：表示对现在事情的推测。
This book must be Jim’s because his name is on it.
（2）情态动词+be+动词-ing：表示对正在发生的事情的推测。
My mother might be cooking in the kitchen.
（3）情态动词+ have +动词的过去分词：表示对过去情况的推测。
The ground is wet. It must have rained last night.
不同形式的情态动词表示不同的含义
Grammar Focus
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.
3. A: That’s the phone.
B: Hmm. I wonder who it _____________ (must be / could be / should be).
4a
might be
must be
could be
Choose the best way to complete each sentence using the words in brackets.
Grammar Focus
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.
4a
must be/ could be
can’t be
Choose the best way to complete each sentence using the words in brackets.
Grammar Focus
Complete these responses.
4b
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 __________________________________________________.
sleepy / sli:pi/ adj. 困倦的；瞌睡的
Point
Whenever I try to read this book, I feel sleepy.（教材P60 4b）
Language points
sleepy是形容词，意为“困倦的；瞌睡的”，可作定语或表语。
asleep也是形容词，意为“睡着的”，常用作表语或宾语补足语。
Jim didn’t sleep well last night. He is tired and feels sleepy now and falls asleep soon at his desk.
Grammar Focus
Grammar Focus
Complete these responses.
4b
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（嗓子疼）/ ill
must be delicious
be that boring
Grammar Focus
What can you see in the picture
What are his/ her hobbies
Why do you think so
Who do you think lives in the room, a boy or a girl
Look at the picture and answer the following questions.
Grammar Focus
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.
4c
I guess so. But it might be a boy’s room because the clothes look like boys’ clothes.
It could be a girl’s room because it’s very tidy.
Exercises
— Do you know where the __________ （实验室）is
— Yes, I do. It’s in front of the library.
2. Don’t make any _________ (noisy) when you are in the library.
_________ (wolf) are usually friendly and helpful to each other when living
in groups.
4. I stayed up last night. So I feel _________ (sleep) in class today.
Some ____________ (policeman) went to the scene and searched for more details.
laboratory
Wolves
noise
policemen
一、词语运用
sleepy
Summary
Homework
1. Read and recite the new words and the article in 3a.
2. Write a short passage for 4c according to your discussion
with your partner.
