人教版高中英语必修二unitcomputersgrammar课件

1、Learning about LanguageThe Present Perfect Passive Voice Learning about LanguageThe PrerevisionWill/shall +be + V过去分词构成形式:一般将来时被动语态(Future Passive Voice)shall 用于第一人称: I /we , will 用于任何人称be going to be +V过去分词be to be +V过去分词否定句: 一般疑问句:在will/shall后+not把will /shall 提前revisionWill/shall +be The students

2、of class one will clean the playground.The playground will be cleaned by the students of class one. We are going to hold a meeting on Saturday afternoon.A meeting is going to be held (by us) on Saturday afternoon.The twins are to repair the machine tomorrow. The machine is to be repaired (by the twi

3、ns) tomorrow.The students of class one willThe host will give the winner a computer as the prize.获胜者将被赠予一台电脑作为奖励. The winner will be given a computer as the prize (by the host).一台电脑将被赠给获胜者作为奖励.A computer will be given (by the host) to the winner as the prize.The host will give the winner Lead-inAre

4、you familiar with these computers? Can you call them?palmtoplaptop/ notebookdesktop PCLead-inAre you familiar with t WW PCwrist-worn/wearable PCA wrist-worn PC has been invented recently.A pen-like computer has already been developed. WW PCA wrist-worn PC Can you make more sentences similar to the s

5、entences above? “have/has been done ?” Can you make more sentences sA calculating machine; replaceThe buildings; destroy ; earthquakeA calculating machine has been replaced with the laptop.The buildings have been destroyed in an earthquake.A calculating machine; replaceA calculating machine has been

6、 replaced with the laptop.The buildings have been destroyed in an earthquake.3. The sports meeting has already been held in our school. Do the underlined parts have something in common?Discovering:has/have been done现在完成时被动语态现在完成时的被动语态the Present Perfect Passive VoiceA calculating machine has been现在完

7、成时的被动语态的用法 1.表示一个被动的动作发生在说话之前,强调对现在造成的影响和结果.The door has been locked.2.表示一个被动的动作或状态开始于过去,持续到现在,并可能持续下去,常与for 或since引导的时间状语连用,或用于How long.?句型中.The important problem has been discussed for nearly two weeks.How long has the machine been used? 现在完成时的标志:recently /already/yet for+一段时间 /since+时间点现在完成时的被动语态

8、的用法现在完成时的标志:recently句型He has been sent to study the new technology in the company.否定句:He has not been sent to study the new technology in the company.一般疑问句: Has he been sent to study the new technology in the company?特殊疑问句: Where has he been sent to study the new technology?在have /has 后加nothave /has

9、 提前疑问词+have (has)+主语+been+ V过去分词.+.?句型在have /has 后加nothave /has 提前Great changes _ in the city , and a lot of factories _. A. have been taken place ; have been set upB. have taken place; have been set upC. have taken place; have set upD. were taken place; were set upBGreat changes _ in the1.They not

10、have finished the homework which should be finished yesterday.2.Does the new program have been developed for the robot?3.How many have teachers been interviewed for the job?Has the new programhave notteachers havecorrect mistakes1.They not have finished the h二、现在完成时的被动语态应注意的几个问题 1.请注意现在完成时的被动语态的两个助动

11、词,即have/has和been,两者缺一不可。 2. 请注意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情况的联系. The bridge was built last year. 这桥是去年建成的。The bridge has been built. 这桥已经建好了。二、现在完成时的被动语态应注意的几个问题三、 巩固练习1.How many times_ not to play with fire? Im sorry. Ill never do that again. A. do you tell B. had

12、 you told C. are you told D. have you been told 2.The fire _ to the fifth floor. _ all the people _? A. has got; Have; been savedB. has been got; Have; saved C. has got; Do; save D. has got; Have; saved3.Do you know the thief _ by the police? has caught B. has been catchingC. was caught D. has been

13、caught 三、 巩固练习Homework:准备月考Homework:准备月考3.请注意一些特殊动词,如borrow, finish, begin, buy, start, return, 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,则需改换动词或时态。如: 误 How long has this book been bought?正 How long ago was this book bought?但这类动词的否定式可表示动作的持续过程,具有连续性,因而可与since或for引导的时间状语连用。如:No books ha

14、ve been bought since last week.自上周以来,没有人来买过书。名师课堂教学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PPT)名师课堂教学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PPT)3.请注意一些特殊动词,如borrow, finish, b4.This is one of the happiest days _ spent in my life.A. that have ever been B. that have never beenC. which was ever D. which

15、we have never5.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名师课堂教学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PPT)名师课堂教学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PPT)4.This is one of the happiest 1. How long _

16、at this job? 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. (2003 上海春季)A. are not decided B. have not been decided C. is not being decided D. has not been decided3. All the preparation

17、s for the task_, and were ready to start. (2000 北京春季) completed B. complete C. had been completed D. have been completed BDD名师课堂教学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PPT)名师课堂教学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PPT)1. How long _ at this jExample: I have read this book many times. This book ha

18、s been read many times .1. We have completed all the preparations for the task, and were 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 friends cellphone.5. They have developed

19、 some programmes for the human resource department of their company.1 . Change the following sentences into the Present Perfect Passive Voice.Practice :名师课堂教学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PPT)名师课堂教学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PPT)Example: I have read this boo2 . Change the follow

20、ing 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 d

21、ecided 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.名师课堂教学人教版高中英

22、语必修二unitcomputersgrammarPPT课件（完整版PPT)名师课堂教学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PPT)2 . Change the following sente8. All the preparations for the project _,And were ready to start. completed B. had been completed C. complete D. have been completed9. Great changes _ in the city , and a lot of facto

23、ries _. have been taken place ; have been set upB. have taken place; have been set upC. have taken place; have set upD. were taken place; were set up10.The book _ under the bench for two days. has put B has been lying C. has been put D. has been laidDBB名师课堂教学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PP

24、T)名师课堂教学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PPT)8. All the preparations for thWhat has been decidedExample: S1: It has been decided that those who do not do heir homework will be asked to return to school on Saturday. S2:It has been decided that those who keep the classroom tidy should be allowed

25、 to go home early everyday.S3:It has been decided S4:Get into groups of four. Your task is to decide what has been decided for the class .Take turns to make the ideas as interesting or as lively as you can.Collect the ones you all like best and be prepared to tell them to the class.Play a game:名师课堂教

26、学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PPT)名师课堂教学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PPT)What has been decidedExample: He has been writing the report for two days.变为被动语态的结构是： The report has been written by him for two days. 名师课堂教学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PPT)名师课堂教学人教版高中英语必修二unitcom

27、putersgrammarPPT课件（完整版PPT)He has been writing the report5.Some new oil fields_ since 1976.A. were opened up B. has opened up C. have been opened up D. had been opened up6.The silence of the library_ only by the sound of pages being turned over.A. has been broken B. breaks C. broke D. was broken7.-_

28、the sports meet might be put off.-Yes, it all depends on the weather.A. Ive been told B. Ive told C. Im told D.I told为D,C,B,D,C,A和A 名师课堂教学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PPT)名师课堂教学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PPT)5.Some new oil fields_ sin1.现在完成时被动语态肯定句主语+has/ have been +P.P.+.(P.P.

29、=动词的过去分词形式)Her motorbike has been stolen.她的摩托车被盗了。All the offices have been linked by computer.所有的售票处由计算机联网工作。2.现在完成时被动语态否定句主语+has/ have +not+ been+ P.P.+.The task has not been finished yet.任务尚未完成。Many skilled workers have not been trained in the company.这家公司并没有培养多少熟练工人。名师课堂教学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PPT)名师课堂教学人教版高中英语必修二unitcomputersgrammarPPT课件（完整版PPT)1.现在完成时被动语态肯定句名师课