《unit3《grammar》：课件十（24张PPT）（人教版必修2）》由会员分享，可在线阅读，更多相关《unit3《grammar》：课件十（24张PPT）（人教版必修2）（26页珍藏版）》请在金锄头文库上搜索。
1、Revision Check the homework exercises.Ex1:p20revolution;network;simplify;calculate;mobile;solve;explore;totally;anyhow;financeEx2:p201explore2Web3technology4artificial5applications6intelligent7logically8realityEx2:p56Personally;electronic;types;download;logically;arise;possibility;virus;appearanceLe
2、ad-inAre you familiar with these computers? Can you call them?palmtoplaptop/ notebookdesktop PC WW PCwrist-worn/wearable PCA wrist-worn PC A wrist-worn PC has been invented has been invented recently.recently.A pen-like computer A pen-like computer has has already already been developed. been develo
3、ped.The new campus The new campus has has alreadyalready been been built built . .The houses The houses have been have been destroyed destroyed by the storm.by the storm. Canyoumakemoresentences,using“have/hasbeendone“?The Suntown The Suntown has been set up has been set up in in Taizhou.Taizhou.Man
4、y high buildings Many high buildings have been built have been built there.there.A big swimming pool A big swimming pool has has alsoalso been been builtbuilt. .Lots of beautiful flowers and trees Lots of beautiful flowers and trees have been planted have been planted . .A new bridge A new bridge ha
5、s been completed has been completed . .1.As the year have gone by, I 1.As the year have gone by, I have been have been made made smaller and smaller.smaller and smaller.2. A wrist-worn PC 2. A wrist-worn PC has been inventedhas been invented recently.recently.3. Many new buildings 3. Many new buildi
6、ngs have been builthave been built in in TianTai since 1990.TianTai since 1990.4. A new library4. A new library hashas already already been builtbeen built in in TianTai High school.TianTai High school.5.The houses 5.The houses have been destroyedhave been destroyed by the by the storm.storm.6.Sever
7、al soldiers6.Several soldiers havehave already already been killedbeen killed in the conflict.in the conflict. Do the underlined parts have something in common?Discovering:(1)把主把主动语态的的宾语变为被被动语态的主的主语。(2)把把谓语变成被成被动结构构(be过去分去分词)(根据被根据被动语态句子里的主句子里的主语的人称和数，的人称和数，以及原来主以及原来主动语态句子中句子中动词的的时态来决来决定定be的形式的形式)。主
8、动语态变被动语态的方法主动语态变被动语态的方法(3)把主动语态中的主语放在介词把主动语态中的主语放在介词by之后作宾之后作宾语语,将主格改为宾格。例如：将主格改为宾格。例如：Allthepeoplelaughedathim.Hewaslaughedatbyallpeople.Theymakethebikesinthefactory.Thebikesaremadebytheminthefactory.歌诀是歌诀是:宾变主宾变主,主变宾主变宾,by短语后面跟。短语后面跟。谓语动词变被动谓语动词变被动,be后后“过分过分”来使用。来使用。(4).带双宾语的动词带双宾语的动词give /send/br
9、ing/ take/teach/show/ tell/ make/ sing/ write/ sell/buy/ ask/ pay/ borrow/ lend/ hand/ offer/provide/ past/get/promise 变被动语态有两种方法：变被动语态有两种方法：（2）=Thebookhasbeengiventohim.（1）=Hehasbeengiventhebook.Eg.Ihavegivenhimthebook.Hehasofferedusthemostcomfortableservice.(1)=Themostcomfortableservicehasbeenoffe
10、redtousbyhim.(2)=Wehavebeenofferedthemostcomfortableservicebyhim.(5)带复合宾语的动词变被动语态时带复合宾语的动词变被动语态时,只只能将宾语变为主语能将宾语变为主语,原来的宾补保留不动，原来的宾补保留不动，改称主语补足语。改称主语补足语。主动：主动：Ihaveaskedhertohelpyou.被动：被动：Shehasbeenaskedtohelpyou.6.只有及物动词才有被动语态，只有及物动词才有被动语态，不及物动词不及物动词（词组）没有被动语态（词组）没有被动语态,如如:happen,takeplace,die,appea
11、r,disappear,fail,remain,lie,last,sit,stand,breakout,cometrue,belongto等如：等如：Whathashappenedtoyourbrother?7但许多不及物动词加介词或副词构成的短语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，相当于及物动词，也可以有被动语态。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，变为被动但短语动词是一个不可分割的整体，变为被动语态时，语态时，不可丢掉构成短语的介词或副词不可丢掉构成短语的介词或副词。如：。如：eg1)Thechildhasbeentakengoodcareofb
12、yGrandmaWangalltheseyears.Anoticehasbeenputuponthewall.1构成：构成：主动语态主动语态被动语态被动语态现在完成时现在完成时have/hasdoneHehasbeensenttostudythenewtechnologyinthecompany.Thedirtyclotheshavenotbeenwashed.Havethewindowsbeencleaned?Howmanyshoppingcentershavebeenbuiltinthiscity?The Present Perfect Passive Voice （现在完成时的被动语态）
13、现在完成时的被动语态）have/has been doneLearning the structure:Practice:Changethefollowingsentencesintothepresentperfectpassivevoice.Puttheverbsintothecorrectform.1.Wehaveboughtanewpersonalcomputer.2.Wehavefoundmanyproblemswithournewcomputer.Anewpersonalcomputerhasbeenboughtbyus.Manyproblemshavebeenfoundwithou
14、rnewcomputerbyus.3.TheyhavebuiltaPCthewaywewanted.4.TheyhavejustjoinedourcomputertotheInternet.5.Wehaveusedthecomputereverydaysinceweboughtit.6.Wehavewrittenalotofe-mailsonthecomputerinthepastyear.APChasbeenbuiltthewaywewantedbythem.OurcomputerhasbeenjoinedtotheInternetbythem.Thecomputerhasbeenusede
15、verydaysinceweboughtit.Alotofe-mailshavebeenwrittenonthecomputerinthepastyear. 1.-Whats happening in the new area? -New houses_ recently over there. A. are built B. built C. have built D. have been built2. This is a photo of the power station that_ in my hometown . A. has set up B. has been set up C
16、. was set up D. is set up 3. There is a police car in front of our neighbors house. What do you suppose _? A. did happen B. has happened C. is happen D. has been happenedDBBExercises : Choose the best answers 5. Every possible means _ to prevent the air pollution, but the sky is still not clear.A.is
17、 used B. are used C. has been used D. have been used6. No permission _ for anyone to enter the Building.A.has been given B. has given C.has to give D. has been giving7. The police found that the house _ and a lot of things _.A. has broken into; has been stolenB. had broken into; had been stolenC. ha
18、s been broken into; stolenD. had been broken into; stolenCAD8. All the preparations for the project _,And were ready to start. A.completed B. had been completed C. complete D. have been completed9. Great changes _ in the city , and a lot of factories _. A. have been taken place ; have been set upB.
19、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.A. has put B has been lying C. has been put D. has been laidDBBWhat has been decidedWhat has been decidedExample:S1: It has been decided that those S1: It has
20、been decided that those who do not do heir homework will be asked to who do not do heir homework will be asked to return to school on Saturday. return to school on Saturday. S2:It has been decided that those who keep S2:It has been decided that those who keep the classroom tidy should be allowed to
21、go the classroom tidy should be allowed to go home early everyday.home early everyday.S3:It has been decided S3:It has been decided S4:S4:Getintogroupsoffour.Yourtaskistodecidewhathasbeendecidedfortheclass.Taketurnstomaketheideasasinterestingoraslivelyasyoucan.Collecttheonesyoualllikebestandbeprepar
22、edtotellthemtotheclass.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 上海春季上海春季)A. are not decided B. have not been decided C. is not bei
23、ng decided D. has not been decided3. All the preparations for the task_, and were ready to start. (2000 北京春季北京春季)A. completed B. complete C. had been completed D. have been completed BD高考链接高考链接:DHomework:1.Finish Exercise 2on P21 1.Finish Exercise 2on P21 and exercise1&2 on P57.and exercise1&2 on P57.2.Revise the passive 2.Revise the passive voice.voice.同学们来学校和回家的路上要注意安全同学们来学校和回家的路上要注意安全
