Learning about Language教学设计及教案分析

Unit 3 Computer

Learning about language Teaching aims: How to change the Active Voice into the Passive Voice

Teaching important and difficult points: Master and use how to change the Active Voice into the Passive Voice

Teaching procedures: 一. 在课文中找出所有包含现在时完成时态的句子，并把它们写下来。

___________________________________________________________________ _____________________________________________________________________ _____________________________________________________________________ 二. Change the Active Voice into the Passive Voice: Group A 1. We have finished our homework. 2. Many visitors have visited the Great Wall. 3. Mike has seen two films since last month. 4. The Russian government has turned these palaces into museums. Group B 1. Our homework has been finished by us. 2. The Great Wall has been visited by many visitors. 3.Two films have been seen by Mike since last month. 4. These palace have been turned into museums. A组强调动作的执行者,是主动语态, 结构:主谓宾,

相同点:两组都是完成时态, 结构: have/has+过去分词

B组的句子强调动作的承受者, 是被动语态. 相同点: 两组都是完成时态

结构: 助动词

have/has been +过去分词

三.现在完成时(have/has + 过去分词) 现在完成时的动作或情况虽然发生在过去，但它强调的是与现在的关系，用来说明现在的情

况。

现在完成时

被动语态(have/has + been + 现在分词）

Change the following sentences into the present perfect passive voice. Put the verbs into the correct form. 1.We have bought a new personal computer. ___________________________________________ 2.We have found many problems with our new computer. _______________________________________________ 3. They have built a PC the way we wanted. _________________________________________ 4. They have just joined our computer to the Internet. ________________________________________________ 5. We have used the computer every day since we bought it. _______________________________________________ 四. Exercises 1. Both

my brother work at the power station that ___ in my hometown.

A. has set up

B. has been set up

C. was set up

D. is set up 2. ---_____ the sports meet will be put off.

A. I’ve been told

B. I’ve told

C. I’m told

D. I told

3. All the preparation for the task ____, and we’re ready to start.

A. completed

B. complete

C. had been completed

D. have been done 4. ---- How long ____ at this job?

---- Since 1990.

A. were you employed

B. have you been employed C. had you been employed

D. will you be employed 5. When and where to go for the on-salary holiday ____ yet.

A. are not decided

B. have not been decided

C. is not being decided

D. has not been decided 6. Betty___ injured since last Saturday.

A. has been

B. Was

C. is

D. has 7. That book _________into at least 20 foreign languages. said to be translated

8. –Hi, Tom, you look tired.

-- Of course. I ___ the living room all day.

A. had painted

B. Painted

C. have not painted

D. have not been painting 五. Homework

Finish the exercise in Workbook P57

KEY 1.

A new personal computer has been bought by us. 2.

Many problems with our new computer have been found by us. 3.

A PC has been built the way we wanted by them. 4.

Our computer has been joined to the Internet by them. 5.

The computer has been used by us every day since we bought it. 1-8 badbdadd