unit 3 warming up unit 3 warming up heavy! difficult! hard! tired!
TRANSCRIPT
Unit 3
Warming up
Unit 3
Warming up
Heavy!Difficult! Hard!Tired!
1. Easy !
2. Fast !3. Free !
abacus
算盘
An abacus is an old calculating machine used in China until now.
a huge computer
A huge computer is built to solve some mathematical problems. But it is too big.
calculator
计算器
A calculator is a new calculating machine which can solve a large number of mathematical problems.
PC personal computer
A PC is a personal computer which can solve all kinds of problems and is used widely now.
notebook computer
A notebook computer is a kind of useful computer which can be taken conveniently like a notebook.
What do they have in common?
I think that… In my opinion… I believe that…What’ s your
reason?Why do you
think so?
1.They can be used f
or calculating.
2.They can deal with
maths problems.
3.They are our friend
s.
4.They are useful an
d helpful.
Discussion
What can we do on a computer and through the Internet?
Computer and Internet
type my homework
draw pictures
play games
communicate with my friends gather
information for my lessons
listen to music
watch movies
……
How useful computers are!
school workgamesemailsmusic filmschatinformationphotosshopping
Internet
CPU hard disc
CD / DVD-ROMCRT monitor LCD monitorLCD monitor
chips/motherboard
keyboard mouse modem
scanner printer speaker
floppy disc USB flash disc
CD/DVD/VCD MP3 player
12
4
3
5
6
1. monitor 2. screen 3. CD-ROM4. mouse 5. keyboard 6. hard
disk
Label each part ( WB P56 )
1 A monitor is
2 The screen is
3 A keyboard is
4 A mouse is
5 A CD-ROM is
6 A hard disk is
(a) the part of a computer that stores information.
(b) the part of the computer that you type on.
(c) the part of the computer that looks like a television
(d) something you use to click on things (files, etc.).
(e) the part of the monitor that you look at.
(f) The main device that a computer uses to store information.
Match the words with their meanings.
Underline the correct option to form compound words.
Example: search a) engine b) motor c) disk
1 key a) door b) board c) pocket
2 web a) design b) light c) site
3 on a) time b) line c) sign
4 down a) road b) food c) load
5 soft a) ware b) bear c) toy
6 up a) day b) date c) late
7 hard a) data b) disk c) system
searchengine
Talk freely
Different attitudes towards computers.
parents school students
Summary
Abacus
Huge computer
PC
Calculator
Notebook computer
Internet
Robot
?
Write out all the words you know about computers.
computer
monitor
click
software
searchupdatedownloa
d
Internet
keyboard
1. Talk about computers after
class.
2. Preview the Reading at
Page18.
Homework