资源简介

(共22张PPT)
Unit 4 Amazing Science
Section D
Topic 3 China is the third nation
that sent a person into space.
Learning aims(学习目标)
1.Master the key words and phrases ：
certain, for certain, on one’s own, warn, might, housework, so far, be surprised at, no longer
2.Summarize the usage of Attributive Clause.
3.Learn about some knowledge of robots.
Read through Sections A-C and understand the underlined parts.
Grammar
Attributive Clause (I)
He is our national hero who/that traveled around the earth in Shenzhou V for 21 hours in 2003.
China is the third nation that sent a person into space.
More and more people have personal computers that /which are used to play games and watch movies.
定语从句：
1.在句子中修饰名词或代词，定语从句在句中充当定语。
2.定语从句必须有先行词，并尽量靠近先行词。
3.在定语从句中，关系词在从句中充当成分。
关系代词
指人: who(主语，宾语)
指物: which(主语，宾语)
指人或物: that
1. I know the boy. He can speak English well.
2. Mary bought a little bird. It was very pretty.
3. The season is summer. It comes after spring.
4. I know the boy. You are looking for him.
Change the following sentences into attributive clause.
I know the boy who/that can speak English well.
Mary bought a little bird that/which was very pretty.
The season is summer which/that comes after spring.
I know the boy who/that you are looking for.
Functions
All of you must be very proud.
It proves that China has made great progress in its space industry.
There is no doubt that computers are very useful in technology and business.
The Internet is making the world smaller, like a village.
Computers help us at work and at home, but they must be used properly.
Review
Talk about the advantages of the computer.
Review
Talk about the disadvantages of the computer.
1a Discuss the following questions before reading.
Then read and check.
1. Do you like robots Why or why not
2. If you had a robot, what would you like it to do for you
1b Find the words in the passage according to the following meanings.
The first letter is given to help you.
1. to tell somebody about danger or
about something bad that may happen
2. to make something happen or appear
3. a person who is paid to do housework
for a family
4. sure and confident, without any doubts
5. used to say that something may be
true, but you are not sure
1.w______
2.c_______
3.s_______
4.c_______
5.p_______
arn
ause
ervant
ertain
erhaps
Robots——Our Servants in the Future
What will our future be like No one knows for certain, but most people think that robots will be part of our lives. Will they be friendly or unfriendly
for certain 肯定
know/say for certain 确切地知道/ 肯定地说
Paragraph 1
Paragraph 2
So far, robots haven’t caused us any problems. They work for
us like servants all the time. They help us do dangerous and difficult work.
cause sb. sth. 给某人带来....../引起......
cause sb. to do sth. 导致某人去做某事
so far 到目前为止”，相当于up to now
常与现在完成时连用。
1. 到目前为止，他们还没有引起任何问题。（完成译句）
They haven’t cauesd any problems ____ ____.
2. So far we _____ nothing from him
A. have been heard B. didn’t hear
C. have heard D. haven’t heard
3. So far, robots _____________ (not cause) any problems.
so far
及时练习：
C
haven’t caused
Paragraph 3
People are surprised at the rapid development of robots. In a few years, perhaps robots will think on their own, just as people use their brains and act for themselves. However, once robots can think for themselves, problems may appear. One scientist warns that if robots start to think for themselves, they will no longer want to be our servants, but our masters. The scientist also warns that if we are lucky, they might treat us as we now treat our pets; if we are not lucky, who knows what will happen Perhaps there will be a war between human beings and robots.
多年以后
on one’s own=by oneself 单独，独自
warn +that从句 警告……
warn sb.(not) to do sth. 警告/告诫某人(不)要做某事
think for oneself 独立思考，为自己考虑
1c Read 1a again and discuss the questions with your partner.
1. Do you think robots will be part of our lives in the future Why
2. Robots are considered to be our servants, aren’t they
3. Do you think robots can think or act for themselves
4. Why does the title have a question mark
Project
Making a Wall Newspaper About Computer Information
1. Collect the following information from books, newspapers, the Internet and so on.
the parts of the computer
the kinds of computers
the development of the computer
2. Discuss the uses of computers in daily life and technology in groups.
3. Design a wall newspaper about the computer.
summary
We learn: 1.Some words: certain, warn, might, housework
2.Some phrases: for certain, on one’s own
3.Some sentences:
(1)No one knows for certain, but most people think that
robots will be part of our lives.
(2)In a few years, perhaps robots will think on their own.
We can: 1.Summarize the usage of Attributive Clause.
2.Learn about some knowledge of robots.
( ) 1. In the future, robots may think_____themselves, just as people use their brains and
act_____themselves.
A. of; for B. for; for C. about; of D. for; of
( ) 2. Our teacher_____us_____his friends. We all love him a lot.
A. regarded; as B. treats; as C. treat; for D. regard; as
( ) 3.I can’t say______if he is going to Tokyo at tonight.
A. for real B. as usual C. for certain D. as certain
( ) 4. He was ______ my great progress. “I can’t imagine!” he said again and again.
A. interested in B. interested to C. surprised at D. surprised for
( )5. The man began to______, and he would not help others as usual.
A. think for himself B. think on himself own
C. think about himself D. think of himself.
B
B
C
C
A
Fill in the blanks.
1. It ______(prove) that China has made great progress in its space industry.
2. They spent 2.5 hours _________ (explore) and collecting soil and rocks
to take back to earth.
3. I advise you to discover new ways to make computers _______(serve) us better.
4. The whole world is _________(connect) by the Internet.
5. Spaceships which now ________(main) use electronic controls used to be
controlled by astronauts.
proves
exploring
serve
connected
mainly
Fill in the blanks.
1. There’s _____ _____(无疑地) that China has made great progress in its
space industry.
2. ________(微型的) novels are very popular with children.
3. The flight was________(取消)because there’ll be a heavy fog above the airport.
4. Spaceships can travel to other planets._______(除……以外), humans have
built space stations.
5. No one knows _______ _______(确切地), but most people think that
robots will be part of our lives.
6. Perhaps robots will think ______ _____ _____(独自，单独)in a few years.
no doubt
Tiny
canceled
Besides
for certain
on their own
Homework
Read 1a.
Memorize the useful expressions and key sentences which we learn today.
Finish Section D in your workbook.
Review Section A—D.
Thank you!

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