Learning about Language教案设计

Unit 3 Computers Teaching Design Learning about Language (The Present Perfect Passive Voice) Objectives To help students understand and use the present perfect passive voice Procedures 1. lead in 一般过去时：was/were +V-ed 一般现在时：am/is/are +V-ed 一般将来时：

will (shall)/am/is/are going to+ be +V-ed 2. Warming up by reading some sentences. 1. An opinion is what someone believes is true but has not been proved. (必修2) 2. So even the olive wreath has been replaced! (必修2) Sentences from this unit: 1. Over time I have been changed quite a lot. 2. First as a PC (personal computer) and then as a laptop, I have been used in offices and homes since the 1970s. 3. Over time my memory has developed so much that, like an elephant, I never forget anything I have been told!

Q: 现在完成时的被动语态的构成是什么？什么情况下使用？

3. Definition and understanding the structure of the present perfect passive voice 现在完成时的被动语态表示动作发生在过去, 到现在已经完成或对现在仍有影响。

The structure of the present perfect passive voice is: have/ has ＋

been＋~ed 4. How to use the present perfect passive voice 1.现在完成时的被动语态同它的主动语态一样，强调过去的动作对现在造成的影响或结果，但主语为动作的承受者，表示“……已经被……”。

eg: The new school has been set up. 新学校已经建成了。

2.现在完成时被动语态的肯定式为：have / has + been + done eg: The experiment has been done successfully.

这个实验做得很成功。

现在完成时被动语态的否定式为：have / has + not + been + done eg: Tom’s novel has not been published. 汤姆的小说还没有被出版。

现在完成时被动语态的一般疑问句需将have / has提到主语的前面。

eg: Has his bike been repaired? 他的自行车修好了吗？

现在完成时被动语态的特殊疑问句为：疑问词

+ have / has + been + done eg: Who has been invited? 谁受到了邀请？

注意: 1.副词的位置

often, usually, always, never, hardly, seldom等副词置于have / has和been中间。

eg: Such a man has hardly been believed. 2.并不是所有动词都有被动语态

(1) happen, take place, break out, belong to, cost, last等不及物动词或词组无被动语态。

eg: Great changes have taken place in China since 1978. (2) open, break, drop等不强调动作发出者时常用主动语态。

eg: I opened the door for the guests. eg: The door was opened by me for the guests. 3. 短语动词不可分割也不可省略其中的介词或副词。

eg: The patients have been taken good care of.

5. Reading aloud and discovering

Now go back to page 18 to read aloud and discover in the text all examples of the present perfect passive voice.

As the years have gone by, I have been made smaller and smaller. Since then, my family and I have been used by billions of people to deal with information with each other around the world by the Internet. 6. Discovering useful structure We shall do grammar exercises 1, 2 and 3 on page 21.

P21 2 Change the following sentences into the present perfect passive voice. 1.

My friend has bought a new personal computer. 2.

The shop has repaired my computer very quickly. 3.

An unknown virus has just attacked my computer. 4.

We have not solved the problem yet. 5.

The company has given its computers away to a local school. 6.

The scientists have developed a kind of intelligent robot. Check your answers! A new personal computer has been bought by my friend. My computer has been repaired by the shop very quickly. My computer has just been attacked by an unknown virus. The problem has not been solved by us yet. The computers have been given away to a local school by the company. A kind of intelligent robot has been developed by the scientists.

7. Homework 1. Finish exercises 1-3 onpage 57 in your Workbooks. 2. Finish the Exercises of the Grammar part in Learning English.