Learning about Language名师教学实录

教学设计

Unit3

computers

Learning about language 教学目标

1.Make the students 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. 核心素养

1.Develop the students’ ability of using language

2.Arouse students’ interest in new inventions and enable them to talk about new inventions 教学重难点

the Present Perfect Passive Voice. 教学过程

Step I

Revision

Check the homework first Exercise1: 1 totally

2 revolution

3 artificial intelligence 4 birth

5 simple-minded 6 go by 7 deal with 8 network

9 truly 10 anyway Exercise2: revolution; network; went by; totally; truly; simple-minded; Anyway; deal with Exercise3: 1 totally 2 amazed 3 exciting 4 excited 5 cheaply 6 unlucky Step II Presentation Leading in the new lesson (1)

T:

Are you familiar with these computers? Can you call them?

ask the Ss to distinguish different types of computers. Do you know these new inventions of computer ? A wrist-worn PC has been invented recently. A pen-like computer has already been developed. (2)show them some pictures and ask them to make some sentences.( using the Present Perfect Passive Voice)

Eg: It’s rather a hot day today! Would you like to have a swim after school ? Have you ever swum in the Blue Water World in the Oriental Suntown.

which has been set up in Taizhou? There is a beautiful swimming pool has been built . Many high buildings have been set up. Lots of flowers and trees have been planted. A new bridge has been completed….

Step III Consolidation

1.Ask the Ss to discover whether these sentences have something in common..

Help them to learn the useful structure : the Present Perfect Passive Voice. 2.Discuss with your partners. 3.Give some explanations 现在完成时的主动语态：have/has done 现在完成时的被动语态：have/has been done Eg：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.

一、现在完成时的被动语态的常用句式

肯定式

否定式

一般疑问式

特殊疑问式

主语＋have/has been done... 主语＋have/has not been done... Have/Has＋主语＋been done...？

疑问词＋have/has＋主语＋been done...？

He has been admitted to the club. 他已被接纳为俱乐部成员了。

Tom's novel has not been published. 汤姆的小说还没有被出版。

Has his bike been repaired?

他的自行车修好了吗？

Who has been invited?

谁受到了邀请？

二、现在完成时的被动语态的用法

1．表示被动的动作在说话之前已经完成，强调过去的动作对现在造成的影响或产生的结果，通常与already，yet，never，recently等副词及时间状语so far，by now，up till now，since等连用。

The room has already been cleaned. 这个房间已经被打扫干净了。(现在已经不用打扫房间了) 2．表示一个被动的动作或状态从过去开始一直持续到现在，并可能继续持续下去，常与for或since等引出的时间状语(从句)连用，或用于how long引出的句子中。

The machine has been repaired for two hours. 这台机器已经被修两个小时了。(可能还会继续被修)

3．用在条件状语从句中，表示将来某时已经完成的动作。

You shouldn't leave school before your homework has been finished. 在完成作业之前你不应该离开学校。

三、使用现在完成时的被动语态要注意6点问题

1．与一般过去时的被动语态的区别。一般过去时的被动语态所表示的动作或状态与现在的情况没有联系，而现在完成时的被动语态则强调与现在的情况有联系。

The park was opened to the public last year. 去年这家公园向公众开放。(说明动作发生于过去) The park has been opened to the public. 这家公园已向公众开放。(说明动作发生于过去，但对现在有影响，即现在公园已经开放了) 2．非延续性动词，如borrow，finish，begin，start，buy，marry，open，join等构成的现在完成时的被动语态不能与表示一段时间的状语连用。若要表达相应的意思，则要改换动词或时态。

The work was finished two weeks ago. 这项工作在两周前已经完成。

The work has been finished. 这项工作已经完成。

3．短语动词是一个不可分割的整体，在被动语态中要保持完整性，其中的介词或副词不可省略。

It is said that the problem has been looked into. 据说已经调查这个问题了。

4．只带有一个宾语的动词变为被动语态时，将主动语态的宾语变为被动语态的主语。

We have built many houses in the past ten years. →Many houses have been built in the past ten years. 5．带有双宾语的动词，如give，send，bring，take，teach，show，tell，make，sing，write，read，sell，buy，pay，lend，pass，promise等，变为被动语态时，可将其中一个宾语变为主语，另一个保留不动。

We have given him the book.

→He has been given the book. →The book has been given to him. 6．带有复合宾语的动词变为被动语态时，只能将宾语变为主语，原来的宾补改为主语补足语。原来省略to的不定式作宾补的，被动语态中要用带to的不定式。

I have told them to help you. →They have been told to help you. Step IV Practice and exercises 1.Change the following sentences into the Present Perfect Passive Voice. 1)We have completed all the preparations for the task. 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 telephone.

5) They have developed some programs 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. We have found many problems with it. We have decided to ask a professional man to fix it. He has fixed the computer. He has built a PC way we wanted .

3.Summing up usage of the Present Perfect Passive Voice 4. Further Study: 高考链接(This step can be done according to teaching needs.) 1. ---How long _____ at this job? B --- Since 1990. A. were you employed B. have you been employed

C. had you been employed D. will you be employed 2. 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 课堂小结

Summing up usage of the Present Perfect Passive Voice 课堂训练

Do some exercises

Step V Homework 3

Do exercise on page 57.