新人教必修二Unit3 Computers Warming up and Pre-reading(共28张PPT).ppt

I am a machine which is a good helper in doing house work. I wash clothes for people. Who am I ? A machine that you use to talk to other people even in a far-away place. We are connected by wire or radio. Now each of us often has a number. Who am I ? With this you can watch different programmers just at home. I’m a machine that has a screen with moving pictures and sounds. But watching me too much is bad for your eyes. Who am I ? I am 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 don’t like me now. Who am I ? I am very small. I can be used for calculating. In China, a lot of students use me when solving mathematical problems. Who am I? * Unit 3 Computers Period 1 Warming up 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 the object is and the group mates who guess the object must use the following expressions: Riddles(谜语): washing machine Riddles(谜语): telephone Riddles(谜语): TV set abacus Riddles(谜语): 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 I’m small enough for you to take me with you. notebook computer Who am I ? Riddles(谜语): Discussion Is it very 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 … What’s 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 computer??? Give the English name of the following pictures of the computer components (组件) What is it in English?