牛津上海版（试用本）九年级英语上册Module2 Unit 4 Computers Reading 课件 (共19张PPT)

(共19张PPT)
Guess!
A toy
A handbag
Computers
A woman
Module 2 Unit 4
Computer facts
What is a computer made of
monitor
keyboard
mouse
Main unit
speakers
screen
USB disk
CD-ROM/
DVD-ROM
drives
1 The _________ shows words and pictures.
2 We use the _________ for typing.
3 The “brain” of a computer is in the ___________.
4 We move the _________ to control the computer.
5 We hear sound from the __________.
How do they work together
Brain-storming
What kind of jobs can a computer do






play games
calculate
type
draw pictures


print
play video/music
Think about:
How have computers developed over these years
How important are computers in our daily lives
Are computers cleverer than human beings Can they replace (取代) the human beings
Read the whole passage quickly, and answer:
How many computer facts do the passage tell us
A sub-heading usually tells us the topic of the paragraph(s) below it.
sub-headings
Read the whole passage quickly, and answer:
How many computer facts do the passage tell us
A huge computer
A desktop
the history of the computer
A palmtop
A laptop
它由17468个电子管、6万个电阻器、1万个电容器和6千个开关组成，重达30吨，占地160平方米，耗资45万美元。
Topic sentence
Supporting details
Computers Sizes
First computers
Desktops
Laptops
Palmtops
Other kinds
Computers have become smaller and smaller.
bigger than cars
the size of televisions
the size of big books
small enough to put in your pocket like a bar of chocolate
so tiny that you may be unaware of them
We can use the topic sentence and supporting details to organize our writing.
当我们写作文时，要合理使用topic sentence和supporting details组织文章结构。
We can use compu-ters to Advantages
Examples
calculate at a faster speed than we can
rarely (almost never) give wrong answers
type and draw things
do important jobs
fly planes
operate railways
fly spaceships
calculate
type
print
draw things
teach you
play with you
Easy
work
More
important
work
electronic brains
operate railways
fly aeroplanes
fly spaceships
super calculators
calculate very fast and rarely give wrong answers
Most people know that computers are
It is common knowledge
控制铁路系统
Is a computer cleverer than you Why
No, it isn’t. Because the human brain can produce new ideas but computers cannot.
What job may computers be able to do better one day
The job of a doctor.
What problem will we probably face if computers can do all our jobs
We may have nothing to do.
program
recognize
Talk to
obey
commands
write your letters
First, next, after that, then, finally…
A special ________
________________________
_________ your voice
_________ your commands
_________ your
letters
______ millions of pages of writing
______ pictures, videos and sounds
______ about a famous person from history
______ a photograph or video
______ to them speaking
will be more ________ than books
recognize
obey
write
hold
contain
read
see
listen
popular
program
CD-ROMs/ DVD-ROMs
Computer facts
Part 3
Part 2
Part 1
The __________ of computers in different times
The __________ of computers in daily life
The __________ between human beings and computers in the future
sizes
uses
relationship
Read the whole passage and complete the outline of the article.
Part 4
Computer can _________ your voice, we can ______ it.
recognize
talk to
Part 5
__________________ can hold a lot of information.
CD-ROM/ DVD-ROMs
Think more
1. Will we have nothing to do as AI develops faster and faster
2. Will computers and AI make our lives better or worse in the future Why or why not
3. What will computers be like in the future