Unit 4 Topic 3 Section B课件+内嵌音视频（仁爱科普版九年级上册）

(共16张PPT)
Unit 4 Amazing Science
Topic 3 China is the third nation that sent a person into space. Section B
关系词 先行词 在从句中成分
________ 人 主语，宾语
which _______ 主语，宾语
that 物 ，人 ___________
Who
物
主语，宾语
1. Some words: electronic, spacesuit，telescope
2. Some phrases: master computer, technology, advise sb. to do sth., make sb./sth. do, made up one’s mind.
3. Some sentences:
(1) Spaceships are so amazing.
(2) I think that if I work hard then nothing is impossible.
Astronauts use computers to
control the speed and direction
of their spaceships, even the
temperature.
1a Look, listen and say.
(Kangkang is asking Mr.Brown something about spaceships.)
Kangkang: Spaceships are so amazing! Mr.Brown, could you please tell me some recent spaceship developments
Mr.Brown: OK. Spaceships which now mainly use electronic controls used to be controlled by astronauts.
Kangkang: But how do they work
Mr.Brown: Astronauts use computers to control the speed and direction of their spaceships, even the temperature.
Kangkang: Perfect! But I know so little about computer technology.
Mr.Brown: It's important to master computer technology. So I advise you to
discover new ways to make computers serve us better.
Kangkang: Good idea. Thanks for your introduction, Mr. Brown. I think that if I work hard then nothing is impossible.
( )1. The dialog is mainly about______.
A. the importance of English B. the development of spaceships
C. how to master computer technology
D. the importance of computer technology
( )2. From the dialog we learn that_____
A. Kangkang will work hard to learn English well.
B. Kangkang will work hard to master computer skills.
C. Kangkang will work hard to make the technology serve us better.
D.Kangkang will become a great astronaut.
把下列句子改为否定句和一般疑问句，并作肯定和否定回答。
My brother used to go swimming in the sea.
否定句：
My brother ___________________ to go swimming in the sea.
一般疑问句：
______ your brother___________ swimming in the sea
Yes, _______ . No, _________ .
一般疑问句：
_____ your brother ______ swimming in the sea
Yes, _________ . No, ___________ .
didn’t use / usedn’t
Did
use to go
he did
he didn’t
Used
to go
he used
he usedn’t
( ) 1. make food for astronauts
( ) 2. change the speed of spaceships
( ) 3. control the direction of spaceships
( ) 4. control the temperature of spaceships
Make predictions based on what you know.
1b What can computers do to spceships Tick the possibilities and then listen to 1a to check your answers.
Kangkang wanted to know something about recent spaceship developments. Mr. Brown told him that spaceships used to be _________by astronauts and now mainly use ________ controls. Then he explained to Kangkang that the speed and ________ of spaceships as well as the temperature are controlled by computers. Kangkang then realized he knew little about computer technology. Mr. Brown _________ him to learn to use computers well and make computers _______ us better in the future. Kangkang made up his mind to work hard to _________ computer technology.
controlled
electronic
direction
advised
serve
master
1c Read 1a and fill in the blanks.
food ( ) spacesuit ( ) telescope ( ) machine ( )
2
1
3
4
2 A. Listen to four short passages and number the pictures. The words below the pictures may help you.
1. A spacesuit is like a very small__________.
2. Astronauts add ________ to ________ to make it bigger.
3. On earth, we can look at the _______________ through telescopes.
4. ___________are training on a special machine. It _______ them through the air.
spaceship
water
dried food
stars and planets
Astronauts
lifts
2-B Listen again and fill in the blanks.
1. Do you know Neil Armstrong _________was the first man to set foot on the moon
2. This is the spaceship ________ the astronauts use in space.
3. In all big cities, there are things _________ tourists shouldn’t miss!
4. He is a man ________ means what he says.
that/who
that/which
that/which
who/that
3 Read the following sentences and complete them with that, which, who.
1. China is the third nation /that sent a person into space.
2. Yang Liwei is our national hero /who traveled around the earth in Shenzhou V for 21 hours in 2003.
3. Spaceships /which use electronic controls /used to be controlled by astronauts.
4. Chang’e I is a spaceship /which was launched as China’s first lunar probe.
5. More and more people have personal computers /that are used to play games and watch movies.
4 Listen and read the attributive clauses, paying attention to the pause, weak form and intonation.
We learn:1. Some words: electronic, spacesuit
2. Some phrases: master computer technology,
advise sb. to do sth.,
make sb./sth. do, made up one’s mind
3. Some sentences:
(1) Spaceships are so amazing.
(2) I think that if I work hard then nothing is impossible.
We can: 1. Learn more about the astronauts’ life.
2. Read the attributive clauses with correct
pause, weak form and intonation.
1.Read 1a.
2.Memorize the useful expressions and key sentences which we learned today.
3.Finish Section B in your workbook.
4.Preview Section C.