Unit3TheInternetPeriod3DiscoveringUsefulStructures课件高中英语人教版

Unit3TheInternetDiscoveringUsefulStructures互学

核对自学阶段题目的答案，对答案不一致的题目，可进行辩论。展学各组成员竞相陈述自学阶段题目答案教学

其他组成员可以对答案提出质疑，老师进行点评及答疑。Let’splay看谁答的快又准！Jan'slifehasbeengreatlyimprovedbytheInternet. MuchhasbeenwrittenaboutthewondersoftheWorldWideWeb.Let’slearnTheInternethasgreatlyimprovedJan’slife.PeoplehavewrittenmuchaboutthewondersoftheWorldWideWeb.一、用法1.现在完成时的被动语态与其主动语态一样,强调过去的动作对现在造成的影响或结果。2.表示一个被动的动作或状态从过去开始一直持续到现在,常与for或since引出的时间状语连用。Thetaskhasalreadybeenfinished.任务已经完成了。Theplanhasbeendiscussedfortwohours.这个计划已讨论两个小时了。二、注意事项1.与一般过去时被动语态的区别:一般过去时仅表示发生在过去的动作,对现在无影响。2.非延续性动词的现在完成时的被动语态,如:buy,borrow,begin,finish,join,die等不能与表示一段时间的状语连用。3.带双宾语动词的句子变成被动语态时,一般把表“人”的宾语(间接宾语)变为主语,若将直接宾语变为被动句的主语,间接宾语前要加to或for。如动词为give,send,pass,take等时常加to;动词是buy,make,find等时常加for。4.带有复合宾语,即“宾语+宾语补足语”的动词,其所在的句子变为被动语态时,将宾语变为主语,原来的宾语补足语仍留在原处。主动语态中不带to的动词不定式做宾语补足语,在被动语态中要把to加上。Hehassentmeacard.(改为被动语态)①Ihavebeensentacard.②Acardhasbeensenttome.Ihaveobservedherentertheoffice.(改为被动语态)Shehasbeenobservedtoentertheoffice.Theprojecthasbeencarriedout.这个工程已得到执行。

检学

把下列句子变成被动语态(1)We’veplantedmanyflowersthisspring.________________________________________(2)Theboyhasn’tsoldoutallthecakes.______________________________________________

(3)Thegirlhaspassedhimsomepaper._________________________________________(4)Ihaveheardhimsingthissongforalongtime.__________________________________________Findoutthedifferencesinmeaningandfunctionbetweentheactiveandpassiveforms.Readthepoem.LookatthewayyourfacehasbeenwashedLookatthewayyourteethhavebeenbrushedLookatthewayyourshoeshavebeencleanedYou'dbetterdothemagain.Thinkofyourownsituationandwriteasimilarpoem.PairworkTimetotalk!Shareyourpoemwithyourpartner!PairworkLookatthewaythepicturehasbeenpaintedListentothewaythesonghasbeenwrittenLookatthewaythefilmhasbeenmadeNowthinkaboutwhatyoucouldcreate.SampleLookatthewaytheneedyhavebeenhelpedLookatthewaytheriverhasbeencleanedLookatthewaythetreehasbeenplantedNowthinkhowtomaketheworldabetterplace.SampleWhenYouAreOldThepresentperfectpassivevoice以ask

为例肯定式否定式IhaveHe/She/IthasWehaveYouhaveTheyhavebeenasked…IhaveHe/She/IthasWehaveYouhaveTheyhavenotbeenasked…以ask

为例疑问式HaveIHashe/she/itHaveweHaveyouHavetheybeenasked…?短语动词的被动语态“及物动词+副词”“及物动词+介词”以及“及物动词+副词+介词”构成的短语动词可用于被动结构。Atlasttheyputoutthefire.→Atlastthefirewasputout.Haveyousentforadoctor?→

Hasthedoctorbeensentfor?Myclassmatescaughtupwithmeinthisexam.→Iwascaughtupwithbymyclassmatesinthisexam.短语动词的被动语态许多“不及物动词+介词”以及“不及物动词+副词+介词”构成的短语动词相当于及物动词，也可以有宾语，也可用于被动结构。Theboyslaughedathimforthefoolishmistake.→Hewaslaughedatforthefoolishmistake.Theylookeddownonpeasantsintheolddays.→Peasantswerelookeddownonintheolddays.带有双宾语的句子在变为被动结构时，这两个宾语的任何一个都可作被动句的主语。Theteachergave

thestudentanewbook.Thestudentwasgivenanewbook(bytheteacher).↓带有复合宾语的句子变为被动结构时，宾语补足语要相应变为主语补足语。EverybodycalledherBigSister.→ShewascalledBigSister(byeverybody).Peoplelastsawthelostgirlplayingneartheriver.→Thelostgirlwaslastseenplayingneartheriver.Let’splayCompletethenoticewiththecorrectformsoftheverbsinbrackets.NoticetoparentshavebeengivenhasbeenmadeLet’splayhasbeensupportedhasbeenprovidedhasbeenprovidedhavebeentaughtLet’splayhavebeenhelpedhasbeensetupLet’splayFindandcorrectthemistakeineachsentence.EXAPLEThisappwasusedseveraltimessinceIdownloadedit.hasbeenLet’splayHowmuchmoneyhasspentontheearthquakerecovery?Thegirlisreallyupsetbecausehernewbicyclehasstolen.Theseoldhouseshavebeenbuiltinthe18thcentury.beenbeenwereExercise1A:Whycan'tIaccessmyaccount?B:___________yourpersonalinformation_____________(update)?Completethesentenceswiththepresentperfectpassivevoiceofthegivenverbs.HasbeenupdatedExercise2.Bothlearningsites_________________(visit)byover10,000peoplesincelastyear.3.Thiskeyboard________________(notuse)foralongtime.4.Canyoutellmewhat_______________(do)tobridgethedigitaldivide?5.InthepastyearI_________________(inspire)tobuye-booksinsteadofpaperbooks.havebeenvisitedhasnotbeenusedhasbeendonehavebeeninspiredExercisehavebeenpostedhavebee