2017-2018学年人教版 必修2 Unit 3 Computers-using computers教案
2017-2018学年人教版 必修2 Unit 3 Computers-using computers教案第3页

have both disadvantages and advantages.Let's check the answers together.

Type of IT Advantages Disadvantages TV You can both listen and watch. You cannot write to friends. Web You can find information. It is very expensive. Radio You can listen to English. You cannot watch a film. Book You can get information. Sometimes it is out of date. 3. Post-listening:

1) (pair work): decide which type of IT is best for you to use right now. Make your choice and give your reasons by using the following expressions.

I think that....

In my opinion, ....

I believe that....

I agree because....

I disagree because....

I've decided that....

2) (group work): Discussion :

Computers are useful and have brought us lots of good things, but they also cause bad effects. What attitude should we have towards the computer? (Make good use of it but never get trapped by it.)

Step4. Speaking

1. Pre-speaking

Say: From what we have learn, we should admit that computers and the web have a great influence on the school education as well as people's life. It has come into people's everyday life and many families hold computers in their homes. Now there is a task for you.

2. While-speaking

1) Situation: You have been asked by your parents to help choose computers for your home. You and your friend have looked at several computers. Talk about the special things each computer can do. Make a decision about which kind of computer to buy and explain why.