北师大版必修2 模块2 Unit 4 Cyberspace Lesson 1公开课课件(18张ppt)

(共18张PPT)
Welcome to our class
Can you imagine how computers and the Internet will change our lives in the future
Enjoy a video.
Surprising
In this unit, we are going to a new
place. It isn’t a real place. It is
the place where we can talk with each
other online, play games and send
information from one computer to
another.
cyberspace
By the end of the lesson, you will be able to - find out some ideas and predictions about the future of cyberspace and summarise them; - pronounce the new words correctly and understand their meaning in context;
- describe people’s predictions and attitude towards future cyberspace using the words learned.
Objectives
Para 1: Fill in the blanks below:
In the last thirty years, the Internet has ________ _________.
grown
rapidly
In 1983 only ______ computers connected to the Internet
Now there are around _________
In the future the ________ is going to continue
200
50 million
growth
Main idea: the growth of the Internet
Para. 2:
Some experts are pessimistic about the future.
pessimistic
Even now, young hackers can get into the computers of banks and governments.
A person who enters other people’s computer programmes in secret
Hackers use virus to attack computers.
Match them!
terrorist
crime
chaos
crash
C
D
A
B
pessimistic
hackers
Cyber terrorists
now
in the future
cybercriminal
optimistic
in the future
virtual reality
work
shop
study
get
entertainment
TV & mail
service
will disappear
already
in the next
few years
shop on the
Internet
get
information
buy books
find out holiday
offers
book tickets
What can we do in the future
* work in virtual offices
* shop in virtual supermarkets
* study in virtual schools
What’s virtual reality
The use of computers with sounds and pictures that make you feel as if you are in a real situation.
Para 4:
using virtual reality
The structure of the article:
The growth of the Internet
Pessimistic
opinions
Optimistic
opinions
Virtual reality
Introduction
Different opinions
Prediction
Voice your opinion
Watch an video:
Do you feel optimistic or pessimistic about the future of the Internet ？
And how do you use cyberspace properly
You should: work in groups to discuss the question
according to the chart above.
(one student writes down the notes.)
Maybe you will voice your opinions like this:
1. I am optimistic/ pessimistic about the future of the Internet. Because…
2. In my opinion…
Personally…
I think ….
From my point of view,...
Summary
1.In this class we have learned some vocabulary
about cyberspace.
2.Besides,we have learned about the different
attitudes towards cyberspace and We have own
opinions about cyberspace.
3. Each coin has two sides. So dose cyberspace.
Homework
1. Read the text and memorize the
new words
2. Finish the summary on your handout
and memorize it.
summary
The article talks about ___________________.
Different people have different ideas. Some
are___________. They worry about_______,
________and _________in cyberspace. However,
many people are__________. They think
computer can make our life easier. People can
buy books, book tickets, etc. Some experts
believe that we will live in a____________ in
the future.
the future of cyberspace
pessimistic
optimistic
virtual world
crime
hackers
terrorists