Unit 4 Topic 1 Section A课件+内嵌音视频（仁爱科普版九年级上册）

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Unit 4 Amazing Science
Topic 1 When was it invented？
Section A
By the end of the class, you will be able to
Master the following words, phrases and sentences:
Words： lock, rocket, metal, satellite, spaceship
Phrases: be made of, be used of, some day, come true
Sentences：1. I wish I could go into space some day.
2. I hope your dream will come true.
3. —What is a rocket used for —It’s used for sending satellites or spaceships into space.
is spoken by
She speaks Chinese.
is spoken by
He speaks English.
English
English.
He
him.
Chinese
Chinese.
She
her.
被动语态(Passive Voice ) be + done
主动语态： 主语 + 动词 + 宾语
被动语态： 主语 + be + 过去分词 + by + 宾语
Revision:
1. The worker cut down the trees yesterday.
2. Mr. Wang punished him.
把上述两个句子改为被动句。
1.The trees _________________ by the workers yesterday.
2. He ____________________ Mr. Wang.
were cut down
was punished by
结论：
一般过去时被动语态的构成：主语+was\were + done+…
一般过去时的被动语态
结构:助动词(was/were)+及物动词的过去分词
1. 肯定句式 ：主语+was /were+v.-ed
An e-mail was sent to her friend by Jane yesterday.
2. 否定句式 ：主语+was/were + not+v.-ed
An e-mail wasn’t sent to her friend by Jane yesterday.
3. 一般疑问句式： Was /Were+主语+vt.-ed
Was an e-mail sent to her friend by Jane yesterday
4. 特殊疑问句式：疑问词W/H+was/were+主语+v.-ed
Who was the e-mail sent to by Jane yesterday
按要求改写句子
1. The worker cut down the trees yesterday.
A. The trees ______ ______ ______ by the workers yesterday.(被动句)
B. The trees ______ ______ ______ by the workers yesterday. (否定句)
C. ______ the trees ______ ______ by the workers yesterday (一般疑问句)
D. _____ _____ _____ _____ by the workers yesterday (对划线部分提问)
were cut down
weren’t cut down
Were cut down
What were cut down
按要求改写句子
2. I made this model plane.
A. This model plane _____ _____ by me.（被动句）
B. This model plane _____ _____ by me. （否定句）
C. _____ this model plane _____ by me （一般疑问句）
D. _____ _____ _____ by me (对划线部分提问)
was made
wasn’t made
Was made
What was made
Kangkang: Jane, why are you unhappy
Jane: Because I was not allowed to play computer games last night.
Kangkang: It’s bad for your health if you spend too much time on them.
Jane: Maybe you’re right.
(Kangkang shows a model to Jane.)
Kangkang: Look at this.
Jane: A model rocket! Who made it
Kangkang: It was made by me.
Jane: Wow! What’s it made of
Kangkang: It’s made of metal. Do you know what a rocket is used for
Jane: Sure. It’s used for sending satellites or spaceships into space.
Kangkang: You’re right. I’ve learned a lot about spaceships from Mr. Brown and then I made this model rocket. I wish I could go into space some day.
Jane: I hope your dream will come true.
1a Listen, look and say.
1a Listen, look and say.
1b Listen to 1a and mark T(True) or F(False).
1. Jane is unhappy because she was not allowed to go to a party last night. ( )
2. Kangkang’s father made a model rocket for him. ( )
3. The rocket is made of metal. ( )
4. A rocket is used for sending satellites or spaceships into space. ( )
1c Read 1a and answer the following questions.
1. Why did Kankang ask Jane not to spend too much time on computer games
2. What’s a rocket used for
3. Who taught Kangkang some knowledge about spaceships
4. What’s Kangkang’s dream
Because it’s bad for her health if she spends too much time on them.
It’s used for sending satellites or spaceships into space.
Mr. Brown did.
He wishes he could go into space some day.
1. Because I was not allowed to play computer games last night.
allow sb. to do sth 允许某人做某事
be allowed to do sth. 被允许做某事
Dad allowed me to play basketball.
爸爸允许我出去打篮球。
I was not allowed to smoke by dad.
爸爸不允许我吸烟。
2. What’s it made of
由……制成:
看不出材料 be made from
看得出材料 be made of
拓展：
be made up of 由几部分组成
be made in 在某地/某时制造
be made by 由某人制造
be made into 被制成
3. It’s used for sending satellites or spaceships into space.
be used for doing =be used to do 被用来做
used to do sth. 过去常做
be used to doing sth. 习惯于做
be used as 被用作
4. I hope your dream will come true.
come true = realize/achieve one’s dream 实现，成为现实
只要我们努力学习，我们的梦想就会实现。
Our dreams will _____ _____ as long as we study hard.
只要我们努力学习，我们就会实现我们的梦想.
We will ______ _____ ______ as long as we study hard.
come true
achieve our dream
一、根据汉语提示完成句子
1. 早上我习惯跑步。
I’m _____ _____ ________ in the morning.
勺子是用来吃饭的。
The spoon _____ _____ _____ have meals .
The spoon _____ _____ _____ having meals.
3.我过去常走路上学，但现在我习惯于乘公交车。
I _____ _____ _____ to school, but now I _____ _____ _____ _____ a bus.
used to running
is used to
is used for
used to walk
am
used to taking
二、用made的相关短语完成句子
1. The bridge ___________ stone last year.
2. Paper _____________wood.
3. Our class _____________ 20 girls and 18 boys.
4. The watch __________ China.
5. This machine __________ those workers.
6. The metal ____________ a chair last year.
is made of
is made from
is made up of
is made in
is made by
is made into
2 Follow the examples to make up similar conversations.
lock/metal
Example:
paper/wood
Example:
1. A: What’s the lock made ___
B: It’s made of metal.
A: What’s it used for
B: It’s used for locking the door.
2. A: What’s the paper made ____
B: It’s made from wood.
A: What’s it used for
B: It’s used for writing on.
A: What’s the computer desk made of
B: It’s made of wood.
A: What’s it used for
B: It’s used for holding a computer./It’s used to hold a computer.
computer desk/wood
A: What are the chopsticks made of
B: They are made of bamboo.
A: What are they used for
B: They’re used for picking up the food./They’re used to pick up the food.
chopsticks/bamboo
A: What’s the sweater made of
B: It’s made of cotton.
A: What’s it used for
B: It’s used for keeping warm./It’s used to keep warm.
sweater/cotton
A: What’s the watch made of
B: It’s made of metal.
A: What’s it used for
B: It’s used for telling the time./It’s used to tell the time.
watch/metal
3a A. Listen to the conversations and number the following pictures.
3a B. Listen again and complete the table .
Invention Item laptop cell phone digital camera
Material
Usage
Year
country
plastic
study, work and play
around 1985
Japan
plastic
communicate
1973
America
metal and plastic
take photos
around 1975
America
3b Work in pairs. Ask and answer questions based on the table in 3a with passive voice.
Example:
A: What is a laptop made of
B: It is made of plastic.
A: What’s it used for
B: It is used for studying.
A: When and where was it developed
B: It was developed in Japan in 1985.
Focus on the meaning in communication. Don’t be afraid of making mistakes.
单项选择
( )1. Neither of them ______ in China.
A. is made B. are made C. was made
( )2. An accident ______ on this road last week.
A. has been happened B. was happened C.happened
( )3. Mary ______ show me her new dictionary.
A. has asked to B. was asked to C. is asked
( )4. A story ______ by Granny yesterday.
A. was told us B. was told to us C. told us
C
C
B
B
单项选择
( )5. _____ a new library _____ in our school last year
A. Is ; built B. Was ; built C. Did; build
( )6. He says that Mr. Zhang _____ to the factory next week.
A. will send B. would be sent C. will be sent
( )7. Look at our new school. It _____ last year.
A. built B. was built C. is built
( )8. When Tim _____ why he was late for, he just kept silent.
A. was asked B. asked C. was asking
B
C
B
A
We learn:
Use the passive voice.
We can:
1. Some words:
lock, rocket, metal, satellite, spaceship
2. Some phrases:
be made of, be used of, some day, come true
3. Some sentences:
1. I wish I could go into space some day.
2. I hope your dream will come true.
3. —What is a rocket used for —It’s used for sending satellites or spaceships into space.
1. Read 1a.
2. Memorize the useful expressions and key sentences that we learn today.
3. Finish Section A in your workbook.
4. Preview Section B.