内容正文:
Unit 4 Amazing Science
Topic 3 China is the third nation that sent a person into space.
Section D
Master
1. Some words: servant certain,warn, might, housework
2.Some phrases: for certain, on one’s own, so far, be surprised at, no longer
3.Some sentences:
(1)No one knows for certain, but mostpeople think that robots will be part of our lives.
(2)In a few years, perhaps robots will thinkon their own.
We can: 1.Summarize the usage of Attributive Clause.
2.Learn about some knowledge of robots.
Learning aims
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
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Revision 定语从句
(1)含义:修饰某一名词或代词的从句叫定语从句。一般紧跟在它所修饰的先行词之后。(2)先行词:被定语从句修饰的词叫先行词。
(3)关系词:
①含义:引导定语从句的词叫关系词,关系词有关系代词和关系副词。
②关系代词有that, which, who, whom, whose, as等;关系副词有when, where, why等。
③作用:引导定语从句;代替先行词;在定语从句中担当一个成分。
e.g. The fish that/which come from the river can’t live in the sea.
(先行词)(关系代词)
The workers that/who work very hard can get more money.
(先行词)(关系代词)
④ 先行词表人用who/that, 主语,宾语,表语.
先行词表物用which/that, 主语,宾语,表语.
先行词表人或物的,用whose, 即whose + n.
先行词表时间用when, 状语
先行词表地点用where, 状语
先行词表原因用why, 状语
▲. 1. 当关系代词在从句中作主语时不能省略,作宾语时则可以省略.
2. 当先行词被序数词、形容词最高级修饰或是不定代词或既有人又有物时,关系代词 只能用that,而不能用which.
e.g. This is the best film that I have seen.
3. 关系代词在定语从句中作主语时,从句的谓语动词的人称和数须和先行词一致。
e.g. I don’t like people who talk much but do little.
1.Sorry, we don’t have the coat ________ you need.
A. what B. who C. whom D. which
2.—What are you doing? —We are talking about the books and writers ________ we like.
A.that B.which C.who D.whom
3.Do you know the man ________ is sitting behind Nancy?
A. what B. which C. who D. whom
4. The book ________ he bought yesterday is very interesting.
A. / B. why C. when D. what
5. I have found some pictures of the most interesting places ________ you can visit during the winter holidays.
A. where B. which C. what D. that
6. My cousin is a boy ______________ often brings lots of trouble.
7. Sally borrowed a book ______________was written by Mark Twain.
8. Deep Sea is one of the most moving movies __________ I’ve ever seen.
9. Who is the woman ______________ is running by the river?
Exercises in class
D
A
C
A
D
who/that
which/that
that
that
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?
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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. 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 ?
Yes. Actually they’ve already been part of our lives.
No. As a human being, we should show our respect to everything in the world not only to other human but also to those who are alive or not.
No. Because they have no thouhts.
Because no one knows the answer for certain now.
1c Read 1a again and discuss the questions with your partner.
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Careful reading
Paragraph 1
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?
What will...be like?相当于How will..be?。
类似的用法还有:
What’s the weather like? = How is the weather?
for certain 肯定 = for sure.
练习:
What will our ______ (未来)be like? No one knows it for _______ (确信)
future
certain
Listen and follow, then find out the key points.
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Paragraph 2
Listen and follow, then find out the key points.
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.
all the time 一直
help sb. (to) do sth. 帮助某人做某事
help sb. with sth. 帮助某人某事
cause v.导致,引起 / n. 原因
cause sb. sth. 给某人带来....../引起......
cause sb. to do sth. 导致某人去做某事
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Paragraph 3
Listen and follow, then find out the key points.
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.
对...感到吃惊
...的快速发展
独自
不再
在...和...之间
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1. So far, robots haven't cause us any problems.
到目前为止,机器人还没有给我们带来任何麻烦。
考点:
(2)表示“迄今”“到目前为止”,相当于up to now, till now。
当 so far修饰谓语动词且表示一直持续到现在时,谓语动词通常要用现在完成时。
eg. So far there has been no bad news.到现在为止还没有什么坏消息。
So far 50 people have died in the fighting.
到现在为止,已有50人在战斗中丧生。
(3)表示“仅到一定程度”“仅在有限的范围内”,此时句子谓语动词也需要根据具体语境来确定时态。
eg. I can only help him so far. 我只能帮他到这种程度。
Language points
2. One scientist warns that if robots start tothink for themselves,
they will no longerwant to be our servants, but our masters.
一位科学家警告说,如果机器人开始为自己考虑,它们就不是再想做我们的仆人,而是想做我们的主人。
考点:
warn的具体用法:
(1)warn sb. against doing sth.“告诫某人不要做某事”。
The doctor warned the patient againstsmoking.
医生告诫病人不要抽烟。
eg. The teacher warned the children againstplaying on the street.
老师告诫孩子们不要在街上玩。
Language points
2. One scientist warns that if robots start tothink for themselves,
they will no longerwant to be our servants, but our masters.
考点:
warn的具体用法:
(2)warn sb.(not) to do sth. "告某(不)要做某事”。
eg. I warned him to be careful. 我告诫他要小心。
I warned him to stay away. 我告诫他别靠近。
He warned me not to go out with her.
告诫过我不要同她一起出去。
比较:
He warned me not to go out at night.
= He warned me against going out atnight.他叫我不要晚上出去。
Language points
1.确切、肯定、无疑
2.一定能做某事
3.在几年后
4.独自
5.警告某人不做某事
6.警告某人当心某事
7.对……吃惊
8.把……看作
9.一直
10.不再
11.到目前为止;迄今为止
12.导致某人去做某事
13.为......工作
Exercises in class
1.for certain = for sure
2.be certain/sure to
3.in a few years=in a few years’time
4.on one’s own= by oneself = alone
5.warn sb. not to do sth.= warn sb. against doing sth.
6.warn sb.about /of sth.
7.be surprised at sth.
8.treat sb. as = regard sb. as
9.all the time
10.no longer = not any longer/no more = not…any more
11.so far
12.cause sb. to do sth.
13. work for
Exercises in class
1. How does Mr. White get on with his students? Very well. He always ____ them ___ his own children.
A. treats…to B. treats…as C. treats…for D. treats…on
2. The meeting will be held in September, but nobody knows the date _______ .
A. for certain B. with pleasure C. in all D. at last
3. With the rapid ________ of robots, perhaps robots will think on their own brains.
A. develop B. development C. increase D. industry
4. — What will our future be like? — _______ knows, I think.
A. None B. Neither C. No one D. Someone
5. — Do you know that woman ______ is wearing a red dress? —She is my Chinese teacher.
A. who B. which C. what D. this
6. The leader warned us ________ the same mistake again.
A. make B. to make C. not to make D. not make
7. Mike _____ his hometown since he was young.As a result, he likes to think and do things ___ .
A. has left; by himself B. has been away from; on his own
C. has left; himself D. has left; on his own
8. He was ______ my great progress. “I can’t imagine!” he aid again and again.
A. interested in B. interested to C. surprised at D. surprised fo
9. The teacher warned us _____ the danger ahead.
A. to B. of C. in D. from
10. 1. All of us find _____ necessary to take exercise every day.
A. this B. that C. it D. them
B
A
B
C
A
C
B
C
B
C
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 mostpeople think that robots will be part of our lives.
(2)In a few years, perhaps robots will thinkon their own.
We can: 1.Summarize the usage of Attributive Clause.
2.Learn about some knowledge of robots.
Summary
1. Read 1a.
2. Memorize the useful expressions and key sentences which we learn today.
3.Review the expressions of Section A --- D.
4.Review the attributive clause.
5.Preview the new words of Review of Unit 3-4.
Homework
76616.805
2024
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11280.0
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46512.0
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