宁夏青铜峡市高级中学人教版高中英语必修二课件：UNIT 3 COMPUTERS .ppt

1、The Present Perfect Passive Voice现在完成时的被动语态Learning about LanguageLook at the following sentence,paying attention to the underlined part.Over time I have been changed a lot.The Present Perfect Passive VoiceCan you pick out more than two sentences in the present perfect passive voice from the reading

2、 passage?现在完成时的被动语态的谓语构成形式：The results of their experiments havealready been published.The party has been planned since the new year.肯定式：have/has（has只用于第三人称单数，其余人称用have）+been+及物动词的过去分词。They havent been told about it yet.否定式：_+及物动词的过去分词。Have his books been sold out?Yes.So you cant buy one now.一般疑问句形式

3、：_+及物动词的过去分词?have/has+not+beenHave/Has+主语+beenHow many experiments have been doneby the students this month?特殊疑问句形式：疑问词+have/has+been+及物动词的过去分词?现在完成时的被动语态通常有以下两种情况：表示过去开始的被动动作一直持续到现在，常与之连用的时间状语有：for+一段时间，since+时间状语（从句），these days,so far,up to now,in the last/past few years等。e.g.This class have been

4、taught by Mr.Brown for two years.His Chinese has been improved a lot since he came to China.JK Rowlings novels have been translated into many foreign languages so far.表示某被动动作对现在造成的影响或结果，常与already,yet,just,ever,never,recently等连用。e.g.The bike has not been repaired yet.I have already been introduced to

5、 Mr.Smith.【注意】1)现在完成时被动语态的两个助动词：havehas和been缺一不可。2)注意与一般过去时被动语态的区别。一般过去时被动语态表示一个被动的动作发生在过去，其结果对现在没有影响；而现在完成时被动语态的动作或状态尽管发生在过去，但侧重说明该动作或状态对现在造成的影响或结果。e.g.The machine has been repaired机器已经修好了。(说明动作发生在过去，对现在有影响，修好了。)The machine was repaired yesterday机器昨天修了。(只说明动作发生在昨天。)3)动词短语是一个不可分割的整体，在被动语态中要保持其完整性，其中

6、的介词或副词不可省略。e.g.The orphans have been taken good care of here孤儿们在这里受到很好的照顾。4)并不是所有动词都有被动语态happen,take place,break out,belong to,cost,last等不及物动词或词组无被动语态。误 Great changes have been taken place in China since 1978.正 Great changes have taken place in China since 1978.5)一些特殊动词,如borrow,finish,begin,buy,star

7、t,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：My brother has had(不能用has bought)this bike for almost four years.How long has this book been bought?How long ago was this book bought?6)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。e.g.We have built many houses in the past ten years.M

8、any houses have been built in the past ten years.7)带有双宾语的动词，如give,send,bring,take,teach,show,tell,make,sing,write,read,sell,buy,tell,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。e.g.We have given him the book.He has been given the book.The book has been given to him.8)带有复合宾语的动词变为被动语态时，只能将宾语变为

9、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。e.g.I have told them to help you.They have been told to help you.I have made her work hard.She has been made to work hard.用所给（短语）动词的正确形式填空。1.The children _(tell)many times not to go near the river.2.In the last few years thousands of films _(produce)all

10、over the world.3.Jenny _(make)rapid progress recently and is always being praised by the teachers.have been toldhave been producedhas made 4.Great changes _(take place)in our country since the 2008 Olympic Games.5.This topic _(talk about)for two hours.have taken placehas been talked about用现在完成时的被动语态

11、重组下列句子。1.a new hospital for women and children,build,in Beijing2.more and more trees,cut down,by farmersA new hospital for women and children has been built in Beijing.More and more trees have been cut down by farmers.3.about 300 buildings and houses,destroy,in the earthquake4.a lot of money,spend,p

12、rotect the old templeAbout 300 buildings and houses have been destroyed in the earthquake.A lot of money has been spent protecting the old temple.Underline the use of the present perfect voice in the following poem.Then fill in the chart below.Look at the way your face has been washedLook at the way

13、 your hair has been combedLook at the way your shoes have been cleanedYoud better do them again.Look at the way the flowers have been plantedLook at the way the grass has been cutLook at the way the paths have been sweptI hope that youll come here again.Things that have been done wellThings that hav

14、e been done badlythe way the flowers have been plantedthe way the grass has been cutthe way the paths have been sweptthe way your face has been washedthe way your hair has been combedthe way your shoes have been cleanedRead this poem aloud,paying attention to the rhythm and intonation.Then write you

15、r own poem.Look at the way _Look at the way _Look at the way _the table has been laidthe glasses have been placedthe food has been cookedYoud better do them again.possible poem:Look at the way _Look at the way _Look at the way _your bed has been madeyour carpet has been sweptyour shoes have been tid

16、iedI hope that youll come here again.1.In the last few years thousands of films _ all over the world.A.have produced B.have been produced C.are producing D.are being produced从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。2.Experiments of this kind _ in both the U.S.and Europe well before the Second World War.A.have c

17、onducted B.have been conducted C.had conducted D.had been conducted3.Every year a flood of farmers arrive in Shenzhen for the money-making jobs they _ before leaving their hometowns.A.promised B.were promised C.have promised D.have been promised4.His sister left home in 1998,and _ since.A.had not be

18、en heard of B.has not been heard ofC.had not heard of D.has not heard of5.I like these English songs and they _ many times on the radio.A.taught B.have taught C.are taught D.have been taught6.Though we dont know what was discussed,yet we can feel the topic _.A.had changed B.will change C.was changed

19、 D.has been changed7.I got caught in the rain and my suit _.A.has ruined B.had ruined C.has been ruined D.had been ruined用括号内动词的正确形式填空。1.Her play _(make)into at least ten different films over the past years.2.Im confident that you _ (admit)into that university.3.You know,the experiment _(repeat)three times,with similar results each time.has been madewill be admittedhas been repeated 4.The computer _ (repair);you can use it now.5.About 300 buildings and houses _(destroy)in the earthquake last week.has been repaired were destroyed Finish exercises on page 57.Write your own poem.