(共20张PPT)
Life is like live TV show. There is no rehearsal.
人生没有彩排，只有现场直播。
Unit 4 Amazing Science
Topic 3 China is the third nation that sent a person into space.
Section D
学习目标
We learn: Some words: certain, warn,
might, housework
Some phrases: for certain, on one’s own
We can:
1.Summarize the usage of Attributive Clause.
2.Learn about some knowledge
of 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.
概念：
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(主格，宾格)
指物: which(主格，宾格)
指人或物: that
1.I know the boy. He can speak English well.
I know the boy who/that can speak English well.
2.Mary bought a little bird. It was very pretty.
Mary bought a little bird that/which was very
pretty.
3.The season is summer. It comes after spring.
The season is summer which/that comes after
spring.
4.I know the boy. You are looking for him.
I know the boy who/that you are looking for.
Change the following sentences into attributive clause.
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.
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
Do you like robots Why or why not
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
1. No one knows for certain, but most people think that robots will be part of our lives.没有人清楚，但是大部分人都认为机器人会成为我们生活的一部分。
certain adj.
1.[只作表语]确凿的，无疑的，可靠的
2.[只作表语，后跟动词不定式或 of, that]一定的，必然的，有把握的，确信的；一定会来到或发生的
3.[只作定语]某，某一(些)；相当的，一定程度的；一些，有点儿，某种
4.习惯用语 be certain of 确信，深信 be certain to 必然；一定 be not certain whether... 不能确定是否...... for certain 肯定地，确凿地 make certain (of, that) 把......弄清楚，把......弄确凿， 保证
2.In a few years, perhaps robots will think on their own, just as people use their brains and act for themselves.多年以后，也许机器人会有自己的思想，就像人们使用自己的大脑和自己行动一样。
on one’s own 独自，单独
3.One scientist warns that if robots start to think for themselves, they will no longer want to be our servants, but our masters.曾有科学家警告，如果机器人开始自我思考，他们将不再愿意成为我们的仆人，而是想成为我们的主人。
warn sb. (not) to do sth.警告某人（不要）干某事 warn sb. about sth.提醒、警告某人注意某事 warn sb. against (doing) sth.警告某人某事
v.警告
Key Words
for certain–be part of–be friendly
–so far–cause–all the time –
be surprised at–on one’s own –
think for oneself–warn–
no longer–treat …as
–between…and
Retell it
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
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.
No one knows for ________ what our future will be like, but most people think that robots will be part of our _____.
So far, robots haven’t _______ us any problems. They work for us like _______ all the time. They help us do __________ and difficult work.
People are ________ at the rapid development of robots. In a few years, perhaps robots will think on _______ own, just as people use their brains and act for themselves. However, once robots can think for themselves, problems may appear. One scientist _____ that if robots start to think for themselves, they will no _______want to be our servants, but our masters. They _______ treat us as we now treat our pets.
long, they, surprise, cause, certainly, live, servant, danger, warn, may
certain
lives
caused
servants
dangerous
surprised
their
warns
longer
might
Fill in the blanks.
There’s _____ _____(无疑地) that China has made great progress in its space industry.
________(微型的) novels are very popular with children.
The flight was________(取消)because there’ll be a heavy fog above the airport.
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
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.
Read 1a.
Memorize the useful expressions and key sentences which we learned in this topic.
Finish Section D in your workbook.
