人教版高中英语课件:必修2 第3单元 Computers-grammar(1).ppt

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1、WHO AM I?,Grammar,Translate the following expressions,1.be employed2.be increased3.be volunteered4.be said to have disappeared 5.be said to be happy 6.be said to have resigned,被就业 被增长被自愿被失踪 被幸福 被辞职,The times of passiveness被时代(被动语态be+done),把下列含有被动语态的英语谚语翻译成中文,He is not laughed at that laughs at himse

2、lf first自嘲者不会让人见笑。Time lost cannot be won again.时光流逝,不可复得。Once bitten,twice shy(一朝被蛇咬,十年怕井绳)Experience must be bought.吃一堑,长一智。Rome is not built in a day.冰冻三尺,非一日之寒。,被动语态顺口溜,动作谁做的不知道,说出谁做的不必要;接受动作者要强调,用被动语态最为妙。,The promise has been carried out.A new library is being built near our house.Is Chinese sp

3、oken by many people outside China?The cook is liked by us all.,口诀一,何时使用被动语态?,如何将主动语态变为被动语态?口诀二宾变主,把“是(be)”补;动词跟,变过(去)分(词);时与数,“是”随主(语);时态随原句,莫变要记准主语代词变宾格,成为by宾(语)。,e.g.The workers will complete the stadium next year.The stadium will be completed next year(by the workers).,The writer writes such book

4、s for children.Such books are written for children(by the writer).We love the Party.The Party is loved by us.,使用被动语态应注意 口诀三被动不离“be”与“p.p.”,主谓一致莫忘记,句中时态要留意,“进行”易漏一个“being”.,1.-Have you moved into the new house?-Not yet.The rooms _.are being painted b.are paintingc.are painted d.are having painted2.Th

5、ey were cleaning their classrooms.Their classrooms were being cleaned by them.,表格:被动态基本结构,am/is/are done,was/were done,am/is/are being done,was/were being done,will be done,would be done,have/has been done,had been done,歌诀是:被动语态be字变,过去分词跟后面。,1.As the year have gone by,I have been made smaller and sm

6、aller.2.A wrist-worn PC has been invented recently.3.Many new buildings have been built in TianTai since 1990.4.A new library has already been built in TianTai High school.5.The houses have been destroyed by the storm.6.Several soldiers have already been killed in the conflict.,Do the underlined par

7、ts have something in common?,Discovering:,现在完成时的被动语态have/has been done,1构成:主动语态 被动语态现在完成时 have/has done,The Present Perfect Passive Voice(现在完成时的被动语态)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,have/has been done,Learning the structure:,Find out the sentences using the present perfect passive voice from the

8、text,请找出课文中含有现在完成时被动语态的句子,Over time I have been changed quite a lot.I have been used in offices and homes since the 1970s.And my memory became so that,like an elephant,I never forget anything I have been told.Since the 1970s many new applications have been found for me.I have also been put into robo

9、ts and used to make mobile phones as well as help with medical operations.I have even been put into space rockets and sent to explore the Moon and Mars.,WW PCwrist-worn/wearable PC,A wrist-worn PC _(invent)recently.,A pen-like computer _already_(develop),has been invented,has,been developed.,小试牛刀,Th

10、e new campus of Hua Longgen High school_already_(build).,has,been built,Thehouses_(destroy)by the storm.,have been destroyed,Group work2.Change the following sentences into the Present Perfect Passive Voice.Put the verbs into correct form.Recently(we)have bought a new personal computer.Recently a ne

11、w personal computer have been bought.,主动句中的主语we变为被动语态时被原句中的宾语替换,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 comp

12、uter 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 the 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

13、about the positive and the negative effects of using computers.,2.Change the following sentences into the Present Perfect Passive Voice.Put the verbs into correct form.,Recently a new personal computer have been bought.the computer have been used every day since we bought it.our computer have been j

14、ust joined to the Internet.However,many problems have been found with it.So it has been decided to ask a professional man to fix it.Soon the computer has been fixed.A PC has been built the way we wanted.How excited we are!These days a lot of E-mails have been written on the computer.It has been deci

15、ded to write a report about the positive and the negative effects of using computers.,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 allo

16、wed to go home early everyday.S3:It has been decided that 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 g

17、ame:,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 decided3.All the pre

18、parations 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,在汉语中,有一类句子不出现主语,在英语中一般可用被动结构来表示,例如:据说It is said that 据报导It is reported that 据推测It is supposed that 希望It is hoped that 众所周知It is well known that 普遍认为It is generally considered that 有人建议It is suggested that 1)It is reported that it is going to rain tomorrow.2)It is well known that Thomas Edison invented the electric lamp.,在英语语言中,被动语态是极常见的语言现象,人们进行语言交际,离不开对被动语态的使用,熟练掌握被动语态也为下一步学习打下良好的基础,在动词-ing 形式,不定式等结构中,都有被动式,都需要运用被动语态的知识去理解。,Learn more!,

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