Unit3TheInternetDiscoveringUsefulStructures课件-高中英语人教版

Unit3TheInternet

DiscoveringUsefulStructures

议课时间：1月25日上课时间：2月24日主备人：GrammarPassiveVoiceofPresentPerfectTenseBytheendofthisperiod,youwillbeableto…analyzetheformsandfeaturesofthepresentperfectpassivevoice.findoutthedifferencesinmeaningandfunctionbetweentheactiveandpassiveforms.masterthefunctionsofthepresentperfectpassivevoiceinthecontextanduseitinrealsituations.学习目标1’DiscoveringUsefulStructuresMyroomhasbeencleanedup.Hisfacehasbeenwashed.DiscoveringUsefulStructuresMycarhasbeenrepaired.现在完成时

have/hasdone表示说话时已经完成的动作，而且这个动作的结果对现在仍有影响;表示动作发生在过去，但一直持续到现在，并且有可能继续持续下去。当强调动作承受者，不必说出执行者或含糊不清的执行者时，多用被动语态。Doyouknowthestructuresandmeaningsofthepresentperfecttenseandpassivevoice?问题导学8’现在完成时与现在完成时被动语态的动词形式找出下面句子的谓语结构，哪些是主动？哪些是被动？Jan’slifehasbeengreatlyimprovedbytheInternet.TheInternethasgreatlyimprovedJan’slife.PeoplehavewrittenmuchaboutthewondersoftheWorldWideWeb.MuchhasbeenwrittenaboutthewondersoftheWorldWideWeb.被动主动主动被动verbformactivepassivehave/hasdonehave/hasbeendoneVerbformActivePassivehave/has+been+v-edDoyouknowthestructureofthepresentperfectpassivevoice?Fillintheblank.have/has+v-ed一、观察例句，归纳现在完成时被动语态的构成。（1）Tom'snovelhasnotbeenpublished.（2）Theexperimenthasbeendonesuccessfully.

（3）Howlonghasthisfilmbeenshown?

（4）Hashisbikebeenrepaired?现在完成时的被动语态肯定形式为:_____________________。如句(2)。2．否定形式为:____________________________。如句(1)。3．一般疑问句式为：________________________。如句(4)。4．特殊疑问句式为：________________________。如句(3)主语+have/hasbeendone主语+have/hasnotbeendoneHave/Has＋主语＋beendone疑问词＋have/has+主语＋beendone现在完成时被动语态点拨精讲(20’)二、把下面句子变成被动语态.Thebigfirehasbeenputout.Allthemagazineshavenotbeensoldout.三、现在完成时被动语态用法

（一）找出表示时间状语的词语并总结用法。表示一个被动的动作或状态从过去开始一直持续到现在，常连用的时间状语有：for+段时间，since+时间状语(从句)，thesedays,sofar,uptonow,inthelast/pastfewyears等。即学即练：Thisclass_________________(teach)byMr.Brownfortwoyears.HisChinese_________________(improve)alotsincehecametoChina.Rowling’snovels___________________(translate)intomanyforeignlanguagessofar.hasbeentaught

hasbeenimprovedhavebeentranslated（二）表某过去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。即学即练：Thebike____________________(notrepair)yet.I_____

already________________(introduce)toMr.Smith.Thedirtyclotheshavealreadybeencleaned.注意：有些动词没有被动语态,如不及物动词happen,takeplace,breakout等。Greatchanges__________(take)placeinmyhometowninthepasttenyears.hasnotbeenrepairedhavebeenintroduced

havetakenDiscoveringUsefulStructures现在完成时态的被动语态常用于以下情况：1.表示过去开始的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+过去的时间/句子sofar截至目前upto/tillnow截止目前thesedays近来overtime随着时间的推移in/overthepastyears在过去的几年中

2.表示过去某动作对现在造成了影响或结果，常与之连用的时间状语为：already,yet,just,ever,never,recently等一、含义：1、表示动作发生在过去,到现在已经完成或对现在产生的影响。2、动词和被修饰主语构成被动关系。二、构成：肯定式：have/hasbeendone否定式：have/hasnotbeendone一般疑问句：Have/Has+主语+beendone?特殊疑问句：疑问词+have/has+主语+beendone?三、解题步骤

1.找时2.圈主3.定谓课堂小结(1’)一.单句语法填空1．Theirnewhouse_______________(decorate)fortwomonthsandtheywillsettleinitinthenearfuture.2．Theirnewcars_________________(advertise)ontheInternetforalongtime.3．Alltheathletes_______________(select)frommillionsofpeoplealloverthecountryinthepasttwomonths.4．Greatchanges___________(take)placeinmyhometowninthepasttenyears.5.She_________(return)thisbooktothelibraryalready.hasbeendecoratedhavebeenadvertisedhavebeenselectedhavetakenhasreturned当堂检测(15’)DiscoveringUsefulStructuresChangethesentencesintothepresentperfectpassivevoice.Thesoftwarehasbeendownloadedtohelpmyphonebatterylastlonger.Anidentitycardhasbeenlost.HastheWi-Fipasswordbeenconfirmed?Hasthebuttonbeenpressedyettocopythefile?二、单选题(

)1.Despitethepreviousroundsoftalks，noagreement________sofarbythetwosides.A．hasbeenreached B．wasreachedC．willreach D．willhavereached(

)2.ItisthemostinstructivelecturethatI________sinceIcametothisschool.A．attended

B．havebeenattendedC．amattending

D．haveattended(

)3.Inthelastfewyearsthousandsoffilms________allovertheword.A．haveproduced

B．havebeenproducedC．areproducing

D．arebeingproducedADB(

!Anewlibrary________inthecenter.A．isbeingbuilt

B．isbuiltC．isbuilding

D．building(

)5.Wewon'tstarttheworkuntilallthepreparations________.A．arebeingmade

B．willbemadeC．havebeenmade

D．hadbeenmadeACCompletethenoticewiththecorrectformsoftheverbsinbrackets.DiscoveringUsefulStructureshavebeengivenhasbeenmadehasbeensupportedhasbeenprovidedhasbeenprovidedhavebeentaughthavebeenhelpedhasbeensetup1．Thealarmingreport________now.Itwillbefinishedthisafternoon.A.iswritingB.beingwrittenC.isbeingwrittenD.hasbeenwritten2．Still，inthewildforests，animals________forprofit.A.arehuntingB.arebeinghuntedC.havebeenhunted