Unit 4 Topic 3 Section D课件（仁爱科普版九年级上册）

(共18张PPT)
Unit 4 Amazing Science
Topic 3 China is the third nation that sent a person into space.
Section D
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.
What are they
They are robots.
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.
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.
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
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
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.
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 themseves. 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.
1. No one knows for certain 没有人确切地知道
a. no one 用来指人，其后不能接of短语，用做主语时，谓语动词用单数。
例：No one likes a person with bad manners.
b. for certain 确切地
例：—How much will the car cost —I can’t say for certain.
※know / say for certain(that) 确切地知道/肯定地说
2. all the time =always 一直，总是
3. be surprised at /by…对…… 感到惊讶
4.However，once robots can think for themselves, problems may appear.
once 在这用作连词，意为“一旦……就……”,引导时间状语从句。
think for oneself 独立思考
5.One scientist warns that if robots start to think for themselves, they will no longer want to be our servants, but our masters.
a. warn warn sb. (not) to do sth.警告某人（不要）干某事
warn sb. about sth.警告某人注意某事
warn sb. against (doing) sth.警告某人某事
b. no longer = not …any longer no more = not … any more
6.in a few years=in a few years’time 几年的时间里，几年以后（一般将来时）
7.so far到目前为止;迄今为止;到这点为止; 仅到一定程度 (现在完成时）
课文中出现的语法点：一般现在时、一般将来时、现在完成时
1b Find the words in the passage according to the following meanings. The first letter is given to help you.
1.w________ 2.c_________ 3.s________
4.c_________ 5.p_________
arn
ause
ervant
ertain
erhaps
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
Read 1a again and discuss the questions with your partner.
1.Do you think that 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
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.
Project
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, just as people use their brains and act for themselves.
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.
1.Review the expressions of Section A —D.
2.Review the attributive clause.
3.Finish “Project”.
4.Preview the new words of Review of Unit 3-4.