英语九年级上牛津上海版：Chapter 2《Computers》课件(1)

(共11张PPT)
Chapter 2
Question discussion:
What do you do with computers
Do you know the names of these
monitor
keyboard
floppy disk
drive
speakers
CD-ROM
mouse
Fill in the blanks:
1. The ____ shows words and pictures.
2. You use the _____ for typing in formation.
3. The ____ _____ records information.
4. The _____ helps you to control the computer.
5. The ______ _____ contains all the computer’s electronics.
6. We can hear the sound from the _______.
7. We put disks into the ______ in the main unit.
monitor
keyboard
floppy
disk
main
unit
speaker
drives
mouse
Hidden helpers
Questions:
Did you see computers many years ago
Are they the same size
Where can you find the tiny hidden computers
What kind of jobs can a computer do
Fill in the blanks:
◆Computers can ______ very fast.
◆ They can also _____, _____ and draw things .
◆ They can _____ you and _____ _____ with you.
◆ They can _____ railways and _____ aeroplanes and spaceships.
calculate
type
print
teach
play
games
operate
fly
Is a computer cleverer than I am
Why do we say a computer cleverer than
human beings
True False or DK
1. One day computers may be able to do most things
that a human brain can do .
2. But computers can’t be better than doctors, judges
and teachers at doing their jobs.
3. We will have nothing to do if computers do most of our work.
4. Computers have changed our lives a lot.
T
DK
F
T
How do we give computers instructions
Look at this and think
10 PRINT AREA CALCULATOR
20 PRINT
30 PRINT Type: Rectangle
TRIANGLE OR CIRCLE
40 INPUT s
50 REM
CD-Roms
Questions:
●How many pages of writing can a CD- Rom hold
● What does a CD-Rom contain
● What’s the advantage of a CD-Rom
Brainstorming:
What will happen to us if
computers can do our jobs
What will happen to the world if
computers control the world