1. Unit 3
computers
reading
Sun qihua

2. Solve a riddle : one thing
Pre-reading
Solve a riddle : one thing
It has a big face
guess
With many keys
Download information
Two big ears which can play music
You can watch TV or see a movie using it
It can be seen in the office, classroom and at home.

3. We can see many brands of computers
Haier 海尔
Lenovo 联想 惠普 神州
Dell
Tinghuatongfang清华同方
Acer宏基
TCL

4. (Central processing unit)
What makes up the computer? And can you name each part ?
NIC/内存
CPU/处理器
(Central processing unit)
screen
Main board/主板
mouse
Sound box
Key-board
headphone
GPU/显卡
Hard disk

5. Do you like it?
Who am I ?

6. 3.Who was your real father?
First-reading
1.Where were you in 1642?
2.What happened to you in 1822?
3.Who was your real father?
4.What happened to you in the 1970s?

7. 1.Where were you in 1642?
In France

8. I was built as an analytical machine by Charles Babbage
2.What happened to you
in 1822?
I was built as an analytical machine by Charles Babbage

9. 3.Who was your real
father?
Alan Turing

10. I was brought into People’s homes. 4.What happened to you
in the 1970s?
I was brought into
People’s homes.

11. second-reading Timeline calculating machine: analytical machine
1642
1936
1960s
1970s
Now
calculating machine: analytical machine
Alan Turing wrote a book to describe ……
had new transistors, smaller, connected
people’s home
connect all over the world

12. B F A D C E The order : Third-reading
The development of computers technology
F. analytical machine
A. universal machine
D. artificial intelligence
B. calculating machine
E. Internet
C. PC (desktop/notebook)
The order : B F A D C E

13. People say computers have more advantages than disadvantages
People say computers have more advantages than disadvantages. Do you think so? A B
advantages
disadvantages
It is bad for your eyes
Such as :
Send an

14. Download(下载) information improve people's ability of thinking
advantages
Download(下载) information
See a movie or watch TV
Play computer games
Buy goods you want
Do some chatting
improve people's ability of thinking

15. Addictive to play computer games
disadvantages
Too expensive
Addictive to play computer games
Virtual things (虚拟的)
People can not write right Chinese letters

16. Summary
writing

17. 1.Should students surf the Internet? 2.Should students
Homework
1.Should students
surf the Internet?
net bar
2.Should students
go to the net bar?
at home

18. Bye-bye!