Learning about Language名师教学设计

Unit 3 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.

Revision 2. Lead-in The history of computers 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.

Active voice or Passive voice? 1.The old man has been dead for two years. 2.They have done the job. 3.The house has been built for 3 years. 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 bought a new personal computer.

A new personal computer has been bought by us 2）.We have found many problems with our new computer.

Many problems have been found with our new computer. 3）.They have built a PC the way we wanted.

A PC has been built the way we wanted. 4）.They have just joined our computer to the Internet. Our computer has just been joined to the Internet. 5）.We have used the computer every day since we bought it.

The computer has been used every day since we bought it. 6）.We have written a lot of e-mails on the computer in the past year.

A lot of e-mails have been written on the computer in the past year. 2.

Choice

3.

Discovering useful words and expreessions 1）._______________ completely

(p19) 2）._______________ completely change 3）.________________ to make something happen 4）.________________ when a baby or anomal is born 5）.________________unable to understand difficult things 6）_________________pass 7）._________________take correct action 8）.______________broadcast on several different channels 9）.______________indeed 10）.______________used to show that sth.happens in spite

of a problem 4.

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

everybod y could read my writing. But as time________I begain 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!

Step 5: Homework Using words and expressions(EX.1. and EX.2.)

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