Learning about Language优质课教案内容

Unit3 Computers The 3rd period: learning about Language ---the Present Perfect Passive Voice Goals: 1. Learn the Present Perfect Passive Voice.

2. Help the students master the way of using the correct voice, telling the differences between the active voice and the passive voice. Teaching Procedures: Step 1: Revision and lead-in 1.

Check the homework first Ex1:

1. revolution

2. network

3. simplify

4. calculate

5. mobile

6. solve

7. explore

8. totally

9. anyhow

10. finance

Ex2: explore, Web, technology, artificial, applications, intelligent, logically, reality

2. Lead-in The programme has been broadcasted since November. The five children have been educated through the game. The similar jacket to Kim has been sold on the internet. Step2: Discovering Ask the Ss to discover whether these sentences have something in common.. Help them to learn the useful structure : the Present Perfect Passive Voice. Step3: Discussion : learning the structure

Give some explanations 1构成：

主动语态

被动语态

现在完成时

have/has done----------have/has been done He has been sent to study the new technology in the company. The dirty clothes have not been washed. Have the windows been cleaned? How many shopping centers have been built in this city?

2. 只有及物动词才有被动语态，不及物动词（词组）没有被动语态, 如:happen, take place,

die, appear, disappear, fail, remain, lie, last, sit ,stand, break out, come true, belong to等．如：

What has happened to your brother? 3．但许多不及物动词加介词或副词构成的短语动词，相当于及物动词，也可以有被动语态。

但短语动词是一个不可分割的整体，变为被动语态时，不可丢掉构成短语的介词或副词。如：

The child has been taken good care of by Grandma Wang all these years. A notice has been put up on the wall Step4: Practice and exercises 1.Change the following sentences into the Present Perfect Passive Voice. 1). We have completed all the preparations for the task, and we’re ready to start.

2). This company has produced

new types of computers. 3). They have interviewed several teachers for the job.

4). George has sent some texts and pictures to his friend’s cellphone.

5). They have developed some programmes for the human resource department of their company. 2.Change the following sentences into the Present Perfect Passive Voice. Put the verbs into correct form. Recently we have bought a new personal computer. We have used the computer every day since we bought it. We have just joined our computer to the Internet. However, we have found many problems with it. So we have decided to ask a professional man to fix it.

Soon he has fixed the computer. He has built a PC way we wanted . How excited we are! These days we have written a lot of E-mails on the computer. We have decided to write a report about the positive and the negative effects of using computers. 3. Do some exercises Step 5: Homework 1.Finish Exercise 2 on P21 and Exercises 1 and 2 on P57. 2.Revise the Present Perfect Passive Voice.