必修二 3.6《 unit3 computer_period 4 grammar》.ppt

新课标人教版课件系列,高中英语 必修2-3.8,Learning about Language,The Present Perfect Passive Voice,Revision,Check the homework exercises.,Ex1: 1 totally 2 revolution 3 artificial intelligence 4 birth 5 simple-minded 6 go by 7 deal with 8 network 9 truly 10 anyway,Ex2: revolution; network; went by; totally; truly; simple-minded; Anyway; deal with,Ex3: 1 totally 2 amazed 3 exciting 4 excited 5 cheaply 6 unlucky,revision,Will/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,The students 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 twins) tomorrow.,The host will give the winner a computer as the prize. The winner will be given a computer as the prize (by the host). A computer will be given (by the host) to the winner as the prize.,Are you familiar with these computers? Can you call them?,palmtop,laptop/ notebook,desktop PC,WW PC wrist-worn/wearable PC,A wrist-worn PC has been invented recently.,A pen-like computer has already been developed.,Can you make more sentences similar to the sentences above? “have/has been done ?”,replace,The buildings; earthquake; destroy,1.As the year have gone by, I have been made smaller and smaller. 2. A wrist-worn PC has been invented recently. 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 Voice,现在完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,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? How many shopping centers have been built in this city?,在have /has 后加not,have /has 提前,疑问词+have (has)+主语+been+ V过去分词.+.?,1.They not 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 program,have not,teachers have,correct mistakes,Great changes _ in the city , and a lot of factories _. A. have been taken place ; have been set up B. have taken place; have been set up C. have taken place; have set up D. were taken place; were set up,B,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 What has happened to your brother? What was happened to your brother?,1.The child has been taken good care by Grandma all these years. 2.A notice has been put on the wall. 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。,correct mistakes,of,up,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。,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 have been bought since last week. 自上周以来,没有人来买过书。,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 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 saved B. has been got; Have; saved C. has got; Do; save D. has got; Have; saved 3.Do you know the thief _ by the police? has caught B. has been catching C. was caught D. has been caught,4.This is one of the happiest days _ spent in my life. A. that have ever been B. that have never been C. which was ever D. which we have never 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,Homework:,P20 ex. 2 预习P22 Andy-the android 阅读报纸B3版 被动语态再回首(二)并完成相应练习. 导练测P19的B篇和P20的A篇,Example: I have read this book many times. This book has 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 some programmes for the human resource department of their company.,1 . Change the following sentences into the Present Perfect Passive Voice.,Practice :,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. However, we have found many problems with it. So we have decided 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.,8. All the preparations for the project _, And were ready to start. completed B. had been completed C. complete D. have been completed 9. Great changes _ in the city , and a lot of factories _. have been taken place ; have been set up B. have taken place; have been set up C. have taken place; have set up D. were taken place; were set up 10.The book _ under the bench for two days. has put B has been lying C. has been put D. has been laid,D,B,B,What has been decided,Example: 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 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:,1. -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 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 decided 3. All the preparations for the task_, and were ready to start. (2000 北京春季) completed B. complete C. had been completed D. have been completed,B,D,高考链接:,D,Homework:,1.Finish Exercise 1 on P57. 2.Revise the passive voice.,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.,5.Some new oil fields_ since 1976. A. were opened up B. has opened up C. have been opened up D. had been opened up 6.The silence of the library_ only by the sound of pages being turned over. A. has been broken B. breaks C. broke D. was broken 7.-_ the sports meet might be put off. -Yes, it all depends on the weather. A. I've been told B. I've told C. I'm told D.I told 为D,C,B,D,C,A和A,1.现在完成时被动语态肯定句 主语+has/ have been +P.P.+.(P.P.=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。,3.现在完成时被动语态一般疑问句 句型1Has he(she, it,单数名词)+been+P.P.+.? Has a new computer been bought?买了一台新电脑吗? Have they been sent abroad to study Eng-lish?他们已经被派往国外学英语了吗? 4.现在完成时被动语态特殊疑问句 疑问词+have (has)+主语+been+ P.P.+.? What has been bought by Tom?汤姆已经买了什么东西? Who have been helped by the new computer?谁已经得到这种新计算机的帮助? How many buildings have been built in this school?这所学校已经建造了多少座大楼? Where has the car been repaired?这辆小汽车已经在哪里修理好了?,1构成： 主动语态 被动语态 现在完成时 have/has 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?,The Present Perfect Passive Voice （现在完成时的被动语态）,have/has been done,Learning the structure:,