Unit 3 Computers(新人教必修2)

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名称 Unit 3 Computers(新人教必修2)
格式 rar
文件大小 1.5MB
资源类型 教案
版本资源 人教版(新课程标准)
科目 英语
更新时间 2012-02-12 22:10:09

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(共41张PPT)
Teaching aims
1. Learn about the development of the Internet
2.To know how to use the Internet in a proper way
Step I. Further Revision and Check
Group A
软件
保护,防卫
可进入的
网络
故障
设计
software
accessible
breakdown
defence
network
design
数据
文件
途径,经由
发明n.
百分数
军事的
Group B
data
via
percentage
document
invention
military
How can we acquire the latest news
media
television
radio
newspaper
magazine
Internet
computer
How much do you know about the computer
keyboard
the part of computer that you type on
screen
monitor
the part of the computer that looks like a television
Something you use to click on things
mouse
Hard disk
CD-ROM
Group work: please list as many famous websites you’ve known as you can
internet
Bill Gates
software
millionaire
Microsoft
搜狐董事局主席
兼CEO张朝阳
websites 网站
Internet 因特网
Tim Berners-Lee I T
the World Wide Web
What words can you think of when you look at the
pictures
Computers and the Internet are getting more and more popular, do you know what we can do via the Internet
Search for information
Chat on line
Watch videos or movies on line
Listen to music
Send emails
Play games
Shop on line
What is the Internet
What is the World Wide Web
Who invented it
The Internet is the biggest source of
information in the world , and it’s
accessible through a computer .
What is the Internet
The World Wide Web is a computer
network that allows computer users
to access information from millions
of websites via the Internet .
What is the World Wide Web
The World Wide Web was invented in 1991 by an English scientist, Tim Berners-Lee.
Who invented it
Fast Reading
Paragraph
paragraph1
paragraph2
paragraph3
paragraph4
paragraph5
paragraph6
Main idea
a. The present situation of Berners-Lee
b. Berners-Lee invented the World Wide Web
c. What the World Wide Web is
d. Everyone can use the internet .
e. How the internet started
f. What the internet is
True or false (para1-para3)
1. The US army were the first to
use a network of computers. ( )
2. The percentage of websites in English
is going up. ( )
T
F
3. The World Wide Web is a computer
network. ( )
4. It allows computer users to access information from millions of websites via the Internet. ( )
T
T
5. At the moment about 80 percent of web traffic is in Chinese. ( )
6. The World Wide web is a computer network that allows computer users to access information from millions of websites via the Internet. ( )
F
T
Choose the best choice according to the text. (Para4-6)
1. The World Wide Web was invented in
____ by an English scientist.
A. 1991 B. 1990 C. 1992 D. 1993
A
2. Tim Berners-Lee came up with the
idea of the World Wide Web in 1989
while he was working in_____.
A. Switzerland B. Swiss
C. England D. America
A
The development of the Internet
Time Inventors Achievement Advantages
In
_____ A US defence
organization Created ________
Of computer called
DARPANET All computers could “talk” to each other through___________
In
1984 The US National Science Foundation Invented the NSFNET
Network known as
“______________” _________began to use the system as well
In
1991
_____________
Created
________________ ________could use the Internet;
computer users could ____information from millions of _____via the Internet
Tim Berners-Lee
Universities
the telephone
1969
network
Everyone
access
websites
Internet
the World Wide Web
Do you think the Internet is a good thing for our study and life
How to use the Internet
On the whole, the Internet is useful and convenient for us.
But we should use the Internet correctly: at proper time and for proper purpose.
write a passage about your discussion of the Internet.
1 be good for ; be harmful to
2 make use of the Internet
3 do shopping
4 access information 使用信息
5 be addicted to sth.对…上瘾
6 look through 浏览
7 radiation 辐射
8 violence 暴力
1.on the Internet
2.computer hardware
3.the World Wide Wet
4.the biggest source of information
5.be accessible through a computer
6.consist of…
7.millions of pages of data
8.develop a way to do sth
9.the system of communication
10.the US National Science Foundation
11.as well
12.become known as
13.allow doing sth
14.allow sb to do sth
15.via the Internet
16.at the moment
17.go down
18.at University
e up with the idea
20.make it +adj for sb to do…
21.from that moment on
22.rise from A to B
23.thousands of millionaires
24.access the Internet
25.work as…
26.Institute of Technology