Learning about Language优秀教学设计

Unit 3 Computers

一、Teaching aims 1.

Topics 1）Development of Computers. 2）Usage of the passive voice of present perfect tense. Function：

Learn to use the passive voice of present perfect tense

二、Teaching procedures：

（一）Make sure the aim Learn the passive voice of present perfect tense. （二）Teaching procedures Step 1 Greetings and Lead-in Step 2 Presentation. 1.

Development of Computers: calculating machine-analytical machine-universal machine-artificial

intelligence- Pc(desktop/notebook)-Internet 2.

Translation:

依你们看,我该怎么办? 他们无共同之处. 他是一个头脑简单的人.

3.

Conclusion:

Active voice or Passive voice? The old man has been dead for two years. .They have done the job. .The house has been built for 3 years. 现在完成时被动语态谓语: has/have+been+past participle 找宾

作主

看时

定式

Step 3 Practice Please do the following: Active voice and Passive voice .We have bought a new personal computer. .We have found many problems with our new computer. .They have built a PC the way we wanted. Choice: 1.You can see the house_____ for years. A.isn’t painted

B.hasn’t painted C.hasn’t been painted D.hadn’t been painted 2.---How long_____ at this jobs?

---Since 1990. A.were you employed

B.have you been employed

C.had you been employed

D.will you be employed Discovering useful words and expressions: 1._______________ completely

2._______________ completely change 3.________________ to make something happen 4.________________ when a baby is born 5.________________unable to understand difficult things Complete the passage with the words: One day I decided I would change the way I work and make a_________in the office. So I bought a computer and made sure it was joined to a _________. And it was ____

exciting____my letters became neat and tidy and

everybody could read my writing. But as time________I began to feel that my idea had been________ wrong. Now I was no longer able to feel that my work was_____my own. When I became unhappy, my____________ __colleagues thought I needed a more advanced model of computer.________ they bought me a new one.So I have never been able to escape from technology and___________ my work as I think fit! 三：Conclusion：

Explanation and usage the passive voice of present perfect tense

四：Homework：

Using words and expressions(EX.1. and EX.2.)

P56—p57 Using structures(EX.1. and EX.2.)