Unit 3 Computers
Warming up & reading
Look at the following pictures and say their English names.
abacus
calculator

huge computer
PC

laptop
PDA
robot
What’s next ?
keyboard
mouse
Monitor（显示器）
Screen（屏幕）
speaker
host computer
What English words do you know about computers?
①
②
③
④
⑤
⑥
Can you number the following pictures according to the time? Please discuss what they have in common.
laptop
robot
PDA
PC
huge computer
calculator
abacus
I think that…
In my opinion…
I believe that…
1.They can be used for calculating（计算）.
What do they have in common?
2.They can deal with maths problems （数学问题）.
3.They are useful and helpful.
4.They are our friends.
Write out all the words you know about computers.
computer
monitor
click
software
search
update
download
Internet
keyboard
How useful computers are!
Internet
Computers have great power. They make our lives more colorful and more convenient.
BUT
Don’t just use computers for fun.
Don’t spend too much time in playing computer games or chatting(聊天) online.
We should learn more computer skills which are very useful in our future work.
Talk freely
Different attitudes towards computers.
parents
school
students
Computers take too much
time of our children, and the
computer games are harmful.
So we should forbid children play with computers.
Computers are useful, they are helpful to children, so we should teach children how to use computers. But we should also teach them to use computers correctly (正确地）.
Computers are very useful, we like playing with computers, especially computer games. We can also use computers to do our homework, to get information. Without computers, we will fall behind others.
Reading:
Who am I?
Fast-reading:
1. Who is the speaker in this story?
A computer.
2. Write down three sentences from the story to support your idea.
1) I was built as an Analytical machine by Charles Babbage.
2) My real father, Alan Turing, …
3) I was always lonely standing there by myself, until in early 1960s they gave me a family connected by a network.
3. Where was the speaker born in 1642?
In France.
4. What happened to the speaker after nearly two hundred years?
He was built as an Analytical Machine by Babbage.
5. What was the speaker called in 1936?
A universal machine.
6. What happened to the speaker in the 1970s?
He was used in offices and homes.
The computer began as a calculating machine．
The computer grew rapidly both in size and in brainpower.
Task 3 Careful reading
Computers had grown as large as a room.
1960s
Computers were used in offices and homes.
Computers connect people all over the world together.
calculating
analytical
universal
mathematical
problems
Medical operations
Memory
Transistors
Applications
Communication
Trade
Over time I have been changed quite a lot.
Calculating machine
Analytical machine
Universal machine
PC
laptop
These changes only became possible as my memory improved
Tubes
Transistors
Chips
Network
World wide web
Since the 1970s many new applications have been found for me.
Communications
Finance
Trade
Robots
Mobile phones
Medical operations
Space rockets
Providing a life of high quality
In 1642 I began as a calculating machine and could solve any mathematical problem.
My real father was Charles Babbage, who wrote a book and build me in 1936.
After I got my new transistors in the 1960s, I became smaller but cleverer and quicker.
I was brought into people’s homes in the 1970s.
Since my birth I have been built to
take the place of human race.
F
F
T
T
F
Read the text again and check if it is true or false.
Task 5 QUESTION-ANSWER
COMPETITION
What is PC? Speak the name on the whole.
It means: personal computer.
2. What is IT?
Information Technology.
3. What is CD-ROM?
Compact disc read-only memory.
4. What is PDA?
Personal digital assistant.
5. What is W.W.W?
World wide web.
6. 科学技术。
Science and technology.
7. 人工智能。
Artificial intelligence.
8.笔记本电脑。
Notebook computer.
9. Who was the first person to devise the
first computer?
Charles Babbage invented an Analytical machine in 1822.
10. Who was the computers’ real father?
Alan Turing.
1. in common: for or by all of a group
共同的；共有的；共用的
the land owned in common by the
residents 居民共有的土地
in common 常常同have连用，如：
have nothing in common 无共同之处
have little in common 几乎无共同之处
Language points
have something in common 有一些共同之处
have a lot in common 有许多共同之处
以下是从英国国家语料库中选出来的几个例句:
1) You know, Dorothy, you and I have one thing in common．
2) We just had nothing in common and I couldn't communicate with his dull business friends．
3) I suddenly felt we had a lot in common.
2. As a result 结果；终于；因此。
[考例] My friend Martin was very sick with a strange fever; ______, he could neither eat nor sleep.
A. as a result B. after all
C. any way D. otherwise
[点拨] 考查短语辨析。as a result结果； after all毕竟； any way不管怎样；otherwise 否则。由句意可知要选as a result。
3. Over time my memory has developed so much that, ... I never forget anything I have been told.
[考点] so ... that ... 引导结果状语从句。
[考例2] I haven’t seen Ann for ______ long that I’ve forgotten what she looks like.
A. such B. very
C. so D. too
[点拨] 两题都考查so ... that ... 的用法。
4. And my memory became so large that even I couldn’t believe it!
句型：so… that…　如此……以致于……
与 too…to… 句型的相互转换
And my memory became too large for me
to believe it.
eg He is so old that he can’t carry the box.
He is too old to carry the box.
此结构中的that从句表示结果。
The stone is so heavy that no one can lift it.
比较: so that 既可以表结果,也可以表目的。
so...that...结构的so+形容词/副词位于句首时,句子用倒装结构。
So hard does he work that he seldom goes home.
5. But I was always so lonely standing there by myself, until in early 1960s they gave me a family connected by a network.
[点拨] until表示“直到……时”，在肯定句中，指从开始到结束的整段时间，谓语动词一般是延续性的。在否定句中构成not ... until，意为“直到……才”，指到某一点动作才开始，谓语动词一般是非延续性的。其强调句是it is (was) not until ... that ...。当not until位于句首时，句子要进行倒装。
如：
The experts explored the island until the end of last year.
直到去年年底，专家们一直都在勘查这个小岛。
We didn’t solve the problem until Mr. Smith helped us.
直到史密斯先生帮助我们，我们才解决了那个问题。
It was not until last year that my hope became a reality.
Not until noon did it stop raining.
6. I have also been put into robots and used to make mobile phones as well as help with medical operations.
1) help (sb) with sth 协助(某人)做某事
e.g. A man is helping the police with their enquiries.
有一男子在协助警方进行调查。
2) as well as 也，还，而且
e.g. He grows flowers as well as vegetables.
She is a talented musician as well as being a photographer.
3) 这个句子是现在完成时被动语态，其机
构是 (have/has +been + 过去分词）
e.g. The radio has been repaired when
we phoned the shop.
[考例1] Professor James will give us a lecture on the Western culture, but when and where ______ yet.
A. hasn’t been decided
B. haven’t decided
C. isn’t being decided
D. aren’t decided
[点拨] 本题考查动词的时态、语态及主谓一致。由yet可知要用完成时态，又因时间与地点是被决定的，故应用被动语态。此外，“在什么时候和什么地点（做报告）”是指同一件事，故用单数形式。
[考例2] When you get the paper back, pay special attention to what _______.
A. have marked
B. have been marked
C. had marked
D. had been marked
[点拨] 因mark 这一动作发生在get之前，且试卷是被批注，因此应用现在完成时的被动语态。
7. anyhow 无论如何
Anyhow, you can try. 无论如何你可以试试。
I don’t care what you say; I’m going to do it anyhow.
比较: somehow 意为“以某种方式;不知 怎么地”
8. I am now truly filled with happiness that I am a devoted friend and helper of the human race!
[点拨] that引导同位语从句，具体说明happiness的内容。that是连词，在从句中不充当任何成分。英语中用that引导同位语从句的情况比较常见，但有时也可以用连接副(代)词 how, when, where, whether等来引导同位语从句。注意：if, which 不能引导同位语从句。
如：
I had the impression that she chose her words with care.
在我的印象中，她选词很小心。
I heard the news that our team had won.
我听到了我们队获胜的消息。
l have no idea when he will be back.
我不知道他什么时候回来。
He must answer the question whether he agrees to it or not.
他必须回答他是否同意这样一个问题。
Look up the words below:
in common, as a result, anyhow,
so...that, in a way, watch over.
Finish the Ex2 and Ex3 in Learning
about Language on page20.
Homework