Unit 3 Computers reading&writing课件 人教版必修2
Unit 3 Computers reading&writing课件 人教版必修2第1页

1. I am a machine which is a good helper in doing house work. I wash clothes for people. Who am I?

washing machine

2. 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?

telephone

Step1 Pre-reading: Activity1: Riddles(谜语):