Unit 4 Topic 3 China is the third nation that sent a person into space. Section B 课件 (共18张PPT，内嵌音频)2

(共18张PPT)
Unit 4 Topic 3
China is the third nation that
sent a person into space.
Section B
能熟悉并正确运用本课时的重点单词和短语
能掌握定语从句的结构和用法
能谈论宇宙飞船及计算机操控宇宙飞船的发展
01
学习目标
Preview some words:
electronic
technology
spacesuit
telescope
[ lek'tr n k ]
[ tek'n l d ]
[ 'spe ssju t ]
['tel sk p]
adj. 电子的
n. 科技
n. 航天服
n. 望远镜
02
新课讲授
Spaceships used to be controlled by astronauts.
Now they use electronic controls.
It's important to master computer technology.
What can computers do to spaceships
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.
1b What can computers do to spaceships Tick the
possibilities and then check your answers.
( ) 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.
√
√
√
Read 1a and choose a correct answer.
( )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.
D
B
Read 1a again and answer the questions.
1. Who did spaceships use to be controlled by
Astronauts.
2. Does Kangkang know a lot about computer technology
No, he knows little about it.
3. What did Mr. Brown advise Kangkang to do
Mr. Brown advised him to discover new ways to make
computers serve us better.
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.
Astronauts should be trained on the machine before they fly into space, it can lift them through the air.
n.机器
Let's learn something about astronauts:
Spacesuit can protect the astronauts in space.
n.宇航服
They take dried food that the water had removed from it so that it will last for a long time.
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.
3 Read the following sentences and complete them
with that, which, who.
1. Do you know Neil Armstrong _________was the first man to
set foot on the moon
2. This is the spaceship __________ the astronauts use on 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
4 Listen and read the attributive clauses, paying
attention to the pause, weak form and intonation.
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.
Read 1a.
Memorize the useful expressions and key sentences which we learned today.
Finish Section B in your workbook.
Preview Section C.
Homework