Unit 3 Warming up Unit 3 Warming up Heavy! Difficult! Hard! Tired!

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Presentation 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 for calculating. 2.They can deal with maths problems. 3.They are our friends. 4.They are useful and 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 work games s music films chat information photos shopping Internet

CPU hard disc CD / DVD-ROM CRT monitor LCD monitor chips/motherboard

keyboard mouse modem scanner printer speaker

floppy discUSB flash disc CD/DVD/VCD MP3 player

monitor 2. screen 3. CD-ROM 4. 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 1keya) doorb) boardc) pocket 2weba) designb) lightc) site 3ona) timeb) linec) sign 4downa) roadb) foodc) load 5softa) wareb) bearc) toy 6upa) dayb) datec) late 7harda) datab) diskc) system searchengine

Ask and answer questions in pairs. 1.Use computer for school work YouYour partner 2.play games on the computer 3.send s 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

Summary Abacus Huge computer PC Calculator Notebook computer Internet Robot ?

Write out all the words you know about computers. computer monitor click software search updat e downloa d Internet keyboard

1. Talk about computers after class. 2. Preview the Reading at Page18. Homework