新人教必修二 Unit3 Computers-Warming up and Pre-reading.ppt

1、,Unit 3 Computers Period 1 Warming up,guessing game,The whole class will be divided into four groups ,and each group send a student to stand before the platform , who guess what the object is and the rest of the group mates can only do some movements to let his or her group representative guess what

2、 the object is and the group mates who guess the object must use the following expressions:,I am a machine which is a good helper in doing house work. I wash clothes for people. Who am I ?,Riddles(谜语):,washing machine,A machine that you use to talk to other people even in a far-away place. We are co

3、nnected by wire or radio. Now each of us often has a number. Who am I ?,Riddles(谜语):,telephone,With this you can watch different programmers just at home. Im a machine that has a screen with moving pictures and sounds. But watching me too much is bad for your eyes. Who am I ?,Riddles(谜语):,TV set,I a

4、m very old now. I was born in China. Many people used me for calculating in the past, but now I am a bit lonely because they dont like me now. Who am I ?,abacus,Riddles(谜语):,I am very small. I can be used for calculating. In China, a lot of students use me when solving mathematical problems. Who am

5、I?,calculator,Riddles(谜语):,I can be used for calculating. Besides, I can also be used for watching DVD, sending e-mail and communicating through the Internet. However, I am not a PC, because Im small enough for you to take me with you.,notebook computer,Who am I ?,Riddles(谜语):,Discussion,Is it very

6、important to learn computer skills for us? Why or why not?,Use the following expression in your discussion. I think that In my opinion I believe that Whats your reason? Why do you think so?,Components of a computer,Scanner,Printer,Monitor,Floppy Disk,Mouse,Speaker,How much do you know about a comput

7、er?,Give the English name of the following pictures of the computer components (组件),What is it in English?,Main board(主板),What is it in English?,CPU (central processing Unit) 中央处理器,What is it in English?,RAM (随机存储器) (Random Access Memory ),What is it in English?,hard disc 硬盘,What is it in English?,K

8、eyboard (键盘),What is it in English?,Power supply (电源),What is it in English?,CRT display （CathodeRayTube阴极射线管） 纯平显示器,What is it in English?,mouse 鼠标,What is it in English?,display card 显卡,DVD ROM Digital Versatile Disc Read Only Memory 数字通用光盘,What can we do on a computer and through the Internet?,Co

9、mputer and Internet,type my homework,draw pictures,play games,communicate with my friends.,gather information for my lessons,listen to music,watch movies,Use,Typing Shopping Calculating Translating Playing games Communicating Searching information Editing multimedia documents,Nowadays, what does a c

10、omputer mean to you?,A useful machine? A wise expert? A close friend?,You can use these expressions in your presentation:,I think that In my opinion I believe that I agree / disagree because ,Computers have great power. They make our lives more colorful and more convenient. BUT Dont forget that computers are modern tools which cant take the place of real people. Never ignore the people beside you or even far away.,common adj. 普通的,共同的,常见的,in common共同的,共有的,共用的,have nothing in common have little in common have something in common have a lot in common,You know, Do