Unit 3 Computers-Warming up

(共20张PPT)
Warming up
Heavy!
Difficult!
Hard!
Tired!
Easy!
Fast!
Free!
CD / DVD-ROM
CRT monitor
LCD monitor
CPU
hard disc
chips
/motherboard
keyboard
mouse
modem
scanner
printer
speaker
floppy disc
USB flash disc
CD/DVD/VCD
MP3 player
1
2
4
3
5
6
1. monitor 2. screen 3. CD-ROM
4. mouse 5. keyboard 6. hard disk
Label each part
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
Look at these pictures. Discuss what they have in common. Predict what it is going to be about.
What’s next
(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 for calculating.
2.They can deal with
maths problems.
3.They are our friends.
4.They are useful and helpful.
Discussion
How useful computers are!
school work
games
emails
music and films
chat
information
photos
shopping
Internet
Ask and answer questions in pairs.
1. use computer for school work You Your partner
2. play games on the computer
3. send emails to friends
4. surf the Web for fun
5. download music and films
6. chat online
7. search for information
8. look at photographs
9. do shopping online
How do you use computers and the Internet
Talk freely
Different attitudes towards computers.
parents
school
students
Write out all the words you know about computers.
computer
monitor
click
software
search
update
download
Internet
keyboard
根据下列各句句意及所给单词的首字母
或汉语提示，写出该单词的正确形式。
1. An a______ is a calculating tool for dealing with figures in ancient China.
2. One Laptop per Child is a non-profit association devoted to research to develop a $100 l______ for every child in the world.
abacus
laptop
3. During the course, students will develop their ________ (分析的) skills.
4. In final examinations, senior high students are not allowed to use
_________ （计算器）.
5. The ______ （掌上电脑） is a computer that fits in your hand.
calculators
PDA
analytical
II. 用括号内所给词的适当形式填空。
1. Music has been called the ______ (universe) language.
2. Many kinds of __________ (calculate) machines have been invented since the 17th century.
3. The ____________ (develop) of the information technology was the greatest advance of the 20th century.
development
universal
calculating
1. Talk about computers after class.
2. Preview the Reading at Page 18.
Homework