Unit 3
Computers

Warming up
高一人教新课标版必修二
Who Am I ?
Guessing game
With the development of science and technology, many new things appear in human being’s life.
Let’s guess what they are:
1. I am very old now. I was born in China.
Many people used me for calculating in
the past, but now I am a bit lonely because
they don’t like me now.
Do you know who I am?
abacus
2. I am very small. I can be used for
calculating. In China, a lot of students
use me when solving mathematical
problems.
Do you know who I am?
calculator
3. With me you can watch different
programmes just at home. I’m a machine
that has a screen with moving pictures
and sounds. But watching me too much
is bad for your eyes.
TV set
Who Am I
4. I am a machine which moves very fast on four wheels. You need a license(执照) and must be very careful when you drive me. Rolls Royce, Benz and BMW are some famous kinds of me.
car
5. I am a machine which is a good helper in doing house work.
I wash clothes for people.
Who am I?
washing machine
6. A machine that you use to talk to other people even in a far-away place. We are connected by wire or radio. Now each of us often has a number. Who am I?
telephone
7. It is a machine, which you can use to
type your homework, draw pictures, play
games, watch movies, listen to music,
communicate with your friends, gather
information…
A PC/desktop
8. It is a kind of computer which
can be taken conveniently like a
notebook.
A laptop/
A notebook computer
The Electronic Numerical Integrator And Calculator
Personal Digital Assistant
Robot
Discussion: What do they have in common?
I think that…
In my opinion…
I believe that…
What’ s your reason?
Why do you think so?
Giving an opinion:
I think they all can calculate something.
They can deal with some math problems.
I believe that they are our good friends
in our daily life. We can not finish our
work quickly without them.
In my opinion, they are being used
widely and conveniently in the world.
What’s next?
work for us in Mars(火星)
What’s next?
carry things
work in wars (战斗)
仿真机器人
entertainment
娱乐
What do you think will be the next development?
virtual keyboards
虚拟键盘
Nose-top
keyboard-vest
In the future, people will use virtual keyboards. People can also use nose-top computers, wearing keyboard-vest.
What English words do you
know about computers?
Components of a computer
Scanner
Printer
Monitor
Floppy Disk
Mouse
Speaker
CD -- DVD-ROM
---DVD RW
monitor
CPU
hard disc
Main board(主板)
Some hardware:
LCD monitor
keyboard
mouse
modem
(调制器)
scanner
printer
speaker
USB flash disc
CD/VCD/DVD
MP3 player
MP4 player
Memory:(存储器)
floppy disc/disk
移动硬盘
USB
Flash disc
1 TB 固态硬盘
T
硬盘
Hard disc:
Other useful words and expressions
about computer:
Network网络
Virus　病毒
Download 下载
Up load 上传
Program　程序
Website　站点
Hacker 黑客
Home page 主页
Password　密码
Desk top 桌面
User name 用户名
Click 点击
Software 软件
Hardware 硬件
Home page 主页
What can computers
be used to do?
I often use a computer to…, I sometimes
use it to…, and I never use it to…
computer
Internet
Search
Keyboard
Click
E-mail
Blog
Bill Gates
E-pal
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.
Complete the sentences.
Monitor, mouse, keyboard, hard disc,
floppy disc, CD-ROM, printer, modem
1. A _________ is used to see your data on a
computer.
2. A __________ or disk is the main device that
a computer uses to store information.
3. A ________ is a machine for printing text or
pictures onto paper ,especially one connected
to the computer.
monitor
hard disk
printer
4. A _________ is used to put data into a
computer.
5. A ________ is often used to connect
computers to each other though phone lines.
6. Data can also be stored in a ___________,
which is small and can be carried easily.
7. A ___________ is a disc that contains
computer data. It can store a large amount
of data.
keyboard
modem
floppy disc
CD-ROM
common adj. 普通的, 常见的; 共有的, 共用的
①在英国Smith是个很普通的名字。
Smith is a common name in England.
②他们对音乐都有着共同的强烈兴趣。
A great interest in music was common to them..
in common (with) (和……)一样
have sth. in common (with) (与……)有共同之处
③他们虽是兄弟, 但毫无共同之处。
They are brothers, but they have nothing
in common.
Language Points
④和许多人一样, 他喜欢古典音乐, 而不喜欢
流行音乐。
In common with many people, he prefers
classical music to pop music.
⑤In common with many other girls, Anne
likes dancing.
练一练
(1)像许多年轻的夫妇一样, 他们不喜欢跟
父母住在一起。
____ ________ ____ ______ ______ _______,
they do not like to live with their parents.
In common with many young couples
(2)They have a lot ________ and became good
friends very soon.
A. in common B. in case
C. in surprise D. in interest
(3)Does this book have ___________________
(共同之处)with that one?
(4)We are ___________________(普通人),
but we can do something well.
(5)_________________________________
(和多数英国人一样), he enjoys football.
A
anything in common
common people
In common with most Englishmen
(6)我们在业余爱好方面有许多共同之处。
We ______ ___ ___ ___ ________ ______ each
other in hobby.
(7)这两次地震有什么共同点吗？
Do the two earthquakes ______ ________ ____
_________?
(8)这游泳池由附近的孩子们共同使用。
The swimming pool ___ ____ ____ _______ by
all the children in the neighbourhood.
have a lot in common with
have anything in
is used in common
common
(9) ______ he gets up at 6:30. But today he
got up earlier than ______.
Commonly; usual B. Normally; usually
C. Usually; usual D. Usually; common
(10) Are Mary and Susan ______ names for
girls in English-speaking countries?
usual B. common C. ordinary D. normal
(11)The twin sisters have ______ with each
other except that they look alike.
a lot in common B. little in common
C. nothing in common D. no common
A
B
B
Homework
1. Write a short passage about the
advantage and disadvantage of
the computer.
2. Preview the Reading on Page 18.
thank you