(共35张PPT)
人教版2022-2023年度九年级英语全册同步课件
Unit1 How can we become good learners
Section A(3a-4c)
Learning objectives
1.Words: noise, policeman, wolf, laboratory, coat, sleepy
2. Useful expression：There must be +主语+ doing sth.
3. Grammar：must, might, could and can’t for making references
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.
Lead in
It must be a dog.
It must be the wind.
It must be a wolf. wolves (pl.)
It happened ____________________.
The woman is ________________.
She is looking ________________ the window.
She might be _________________.
in the evening/at night
at home
out of
nervous/ worried/
uneasy/ scared
3a Read the article and decide which might be the best title. And answer the questions.
A. A Small and Quiet Town
B. Strange Happenings in My Town
C. Animals in Our Neighborhood
1. What is the town like before
2. What is the unusual thing happening in the town
It used to be very quiet and nothing much ever happened there.
People heard strange noises outside the window every night.
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
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.
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.
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.
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.
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.
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
Whose book is this
3c Read the article carefully and write what people think about the strange noises.
Who gave opinions What are the opinions
Victor's wife She thinks that it could be an animal.
Victor and his friends
The policemen
Helen
One woman in the area
The writer himself
They think it must be teenagers having fun.
They think it might be the wind.
She thinks it can't be a dog.
She thinks it might be a bear or a wolf.
He/She doesn't think that is going to happen.
Listen and repeat.
Listen to the passage of 3a on Page 59, repeat. Pay attention to imitating the stress and intonation.
Whose book is this
1.At first,I thought that it might be a dog,but I couldn't see a dog or anything else,either. either作副词，意为：“也”。
e.g.:I don't know,either.
【辨析】either,too,also与as well
(1) either用于否定句，放于句尾，意为"（后者）也（不）"其前常有逗号。
e.g.:If he doesn't go,I won't go,either.
(2) too用于肯定句，且一般放于句末，意为“(后者)也”，其前常有逗号。
e.g.:Jim likes red.I like red,too.
(3) also用于肯定句，且放于连系动词、助动词或情态动词之后，实义动词之前，意为“也”。e.g.:They also agree with me .
(4) as well常用于肯定句句末，意为“也；还”，其前无逗号。
e.g.:He speaks English,and he knows French as well.
Whose book is this
2.Maybe it was a bear or a wolf.
maybe此处作副词，意为“也许，可能”，相当于perhaps,常位于句首。
e.g.:Maybe she'll come this afternoon.
【辨析】may be与maybe
(1) may be意为“也许是，可能是”，may是情态动词，be是动词原形，两者构成完整的谓语形式，与主语形成系表结构。
e.g.:He may be a soldier.
(2) maybe和may be可相互转换。
e.g.:Maybe you are right.=You may be right.
Whose book is this
3.There must be something visiting the homes in the neighborhood...
there must be是there be与情态动词must连用的结构，表示对现在情况的肯定推测，意为“一定有......”。
e.g.:There must be someone in the room.
“There be+名词+doing sth.”句型表示“有......在做某事”。
e.g.:There is someone knocking at the door.
4.The noise-maker is having too much fun creating fear in the neighborhood.
have fun意为“玩得高兴；过得愉快”，其同义短语为have a great/good/wonderful time和enjoy oneself。
have fun (in) doing sth.意为“做某事很开心”。
e.g.:The kids are having fun playing in the park now.
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
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
表示推测的情态动词
在英语中，表示对某件事物的确定程度，即表示推测的时候，我们通常会用到以下动词:
must, might, could, may, can’t, couldn’t。
一. can和could的区别和用法
1. can表示体力和脑力方面的能力, 或根据客观条件能做某种动作的“能力”。
eg:Can you speak English？
can用在否定句和疑问句中时有时表示说话人的 “猜测”或 “不肯定”。
Can the news be true？
(在日常会话中, can可代替may表示“允许”, may比较正式)
表示推测的情态动词
could 是 can的过去式, 表示过去有过的能力和可能性, 还有怀疑和不肯定的意思(在否定
疑问句中)。
She couldn’t skate when she was five years old. （能力）
At that time we thought the story could be true. （可能性）
could用来提问, 是有礼貌的请求 Could.... Please 语气较为婉转。
Could I speak to Mr. Smith, please
表示推测的情态动词
二. might和may的区别和用法:
1. may的用法:
a. 表示”允许”或”请求”。May I come in？
在使用这一用法时需注意: may表示“允许”的否定形式是must not, 意思是“不应该、不许可”。
—May I take this book out of the reading room
—No, you mustn’t.
b. 表示说话人的猜测，认为某一事情“或许”或“可能”发生。He may know the answer.
c. may用在感叹句中可表示祝愿、愿望。May you succeed. 祝你成功。
表示推测的情态动词
2. might的用法:
a. might可以代替may, 表示现在时间的动作，但语气较为婉转客气或更加不肯定。
Might I offer a suggestion？
b. might用来表示现在时间时, 还可表示”规劝”。
You might pay more attention to spoken English.
三. must与have to的区别
have to比较强调客观需要, must着重说明主观看法，另外have to能用于更多时态。
My brother was seriously ill, so I had to call the doctor in the middle of the night.
(客观上需要做这件事)
He said that they must work hard.
（主观上要做这件事）
表示推测的情态动词
有时两者都可以用, 意思差别不大。
We must / have to leave now.
must在表示说话人对事物的推测时，它比may肯定得多, 相当于汉语的“一定”或“准是”
(只有在肯定句中能这样用。) This must be your room.
在回答由must引起的问题时, 如果是否定的答复，不能用mustn’t, 而需要用needn’t或don’t
have to, 因为mustn’t是“一定不要”的意思，表示禁止。
-- Must I hand in my homework now
-- No, you needn’t.
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.
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.
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
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.
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.
4c
Exercise
1
3
4
一、根据汉语意思完成句子，每空一词。
1.她不可能正在等你。
She__________ __________ __________for you.
2.这肯定是李明的英语书。
This English book__________ __________ __________Li Ming.
3.这个篮球可能是鲍勃或彼得的。
This basketball__________ __________Bob's or Peter's.
4.她的表准是停了。我去叫她。
Her watch__________ __________ __________.I will go and call you.
5.一定有人偷苹果。
There__________ ________somebody________apples.
might
be
can't
be
waiting
must
belong
to
must
have
stopped
must
be
stealing
3
4
二、单项选择
5. — Bob, shall we go and meet our new classmate
— Sorry. I’m busy now. But you ______ask David to go with you. He is free.
A. need B. may C. would D. must
6. — ______ I borrow your history book
— Sure. Here you are.
A. Must B. May C. Need D. Will
7. Cars, buses and bikes ________ stop when the traffic lights change to red.
A. can B. may C. must D. need
8. The magazine ________ be Lily’s, for we can find her name on the cover.
A. may B. might C. could D. must
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.
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