北师大版必修2 模块2 Unit 4 Cyberspace Lesson 2名师课件（22张ppt)

(共22张PPT)
Unit4 Lesson 2
At the end of this lesson, you’ll be able to
find out some information about the development of the Internet.
look for information on the English websites.
talk something about the Internet .
Objectives :
websites
What do you usually use it for
Listen to music
play games
study on line
send e-mail
chat on line
enjoy cinema on line
bank on line
go shopping on line
Net changes our life and makes life more convenient.
Do you want to the history of the Internet
nuclear adj.原子核的，原子能的
military adj. 军事的；军用的
[ m l t r ]
network n. 网络；广播网；网状物
['netw k]
[ nju:kli (r)]
The computers are linked into a _________.
network
A ________war
nuclear
军训
We received ___________ training at the
beginning of the new term in September.
military
Listen to the tape and tick the words you hear:
Manchester University, Britain,
Internet, military, America,
Pentagon, communications,
nuclear war, linking, network,
share ideas, entertainment
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Listen again and answer the following questions.(Ex.2 on page10)
1 . Why did the Net begin
a) for military reasons b) for scientific reasons
c) for business
2. What year did it start in
a) 1959 b) 1969 c) 1979
3. When did people start calling it the ‘Internet’
a) the 1980s b) the early 1990s c) the late 1990s
4. When did the Internet start to grow very fast
a) the late 1980s b) the mid-1990s
c) the late 1990s
Listen for details:
When What happened
In the 1960s The internet was started by___________
The Pentagon were worried about
communications after a _______ war and in _______ they thought of linking _______ into a _______.
Scientists and people in universities started
to use the Internet to ___________. They use it
for _____ and for_______.
In the 1980s People started calling it __________
In the mid 1990s The Internet began to grow ________.
Now It is important for _____________, ______, ________________and _________________.
the military
nuclear
1969
computers
network
share ideas
work
fun
the Internet
fast
entertainment
e-mail
playing games
getting information
Which website on this page can you visit to do these things
Find out what’s going on in your town.
Look for a job
Find out world news
Get information for a school history project(历史课题).
Write to your friends by e-mail
Buy cloths.
3
1
6
5
4
2
Group competition
Discuss the advantages and disadvantages of the Internet in groups.
information
E-commerce
services
virtual reality
entertainment
communication
chat online, send e-mails,
make on-line phonecalls
news, weather,
sports,
distance learning
watch films,
listen to music,
play games
On-line shops;
Shop online
E-bank,
job seeking,
book tickets
and hotels
virtual museum,
virtual schools,
virtual holidays
convenience
high efficiency
less touch
with others
virus threat
threat to
copyright
violence
cybercrime
bad for health
Summary
learnt some information about the development of the Internet.
look for information on the English websites.
talk the advantages and disadvantages
of the Internet.
1. Write a passage about the advantages and disadvantages of using the Internet as well as your opinion on the Internet.(120 words.)
2. Preview the Function File on page.11.
Homework