Unit3TheInternetDiscoveringUsefulStructures課件-高中英語(yǔ)人教版

Unit3TheInternet

DiscoveringUsefulStructures

議課時(shí)間：1月25日上課時(shí)間：2月24日主備人：GrammarPassiveVoiceofPresentPerfectTenseBytheendofthisperiod,youwillbeableto…analyzetheformsandfeaturesofthepresentperfectpassivevoice.findoutthedifferencesinmeaningandfunctionbetweentheactiveandpassiveforms.masterthefunctionsofthepresentperfectpassivevoiceinthecontextanduseitinrealsituations.學(xué)習(xí)目標(biāo)1’DiscoveringUsefulStructuresMyroomhasbeencleanedup.Hisfacehasbeenwashed.DiscoveringUsefulStructuresMycarhasbeenrepaired.現(xiàn)在完成時(shí)

have/hasdone表示說(shuō)話時(shí)已經(jīng)完成的動(dòng)作，而且這個(gè)動(dòng)作的結(jié)果對(duì)現(xiàn)在仍有影響;表示動(dòng)作發(fā)生在過(guò)去，但一直持續(xù)到現(xiàn)在，并且有可能繼續(xù)持續(xù)下去。當(dāng)強(qiáng)調(diào)動(dòng)作承受者，不必說(shuō)出執(zhí)行者或含糊不清的執(zhí)行者時(shí)，多用被動(dòng)語(yǔ)態(tài)。Doyouknowthestructuresandmeaningsofthepresentperfecttenseandpassivevoice?問(wèn)題導(dǎo)學(xué)8’現(xiàn)在完成時(shí)與現(xiàn)在完成時(shí)被動(dòng)語(yǔ)態(tài)的動(dòng)詞形式找出下面句子的謂語(yǔ)結(jié)構(gòu)，哪些是主動(dòng)？哪些是被動(dòng)？Jan’slifehasbeengreatlyimprovedbytheInternet.TheInternethasgreatlyimprovedJan’slife.PeoplehavewrittenmuchaboutthewondersoftheWorldWideWeb.MuchhasbeenwrittenaboutthewondersoftheWorldWideWeb.被動(dòng)主動(dòng)主動(dòng)被動(dòng)verbformactivepassivehave/hasdonehave/hasbeendoneVerbformActivePassivehave/has+been+v-edDoyouknowthestructureofthepresentperfectpassivevoice?Fillintheblank.have/has+v-ed一、觀察例句，歸納現(xiàn)在完成時(shí)被動(dòng)語(yǔ)態(tài)的構(gòu)成。（1）Tom'snovelhasnotbeenpublished.（2）Theexperimenthasbeendonesuccessfully.

（3）Howlonghasthisfilmbeenshown?

（4）Hashisbikebeenrepaired?現(xiàn)在完成時(shí)的被動(dòng)語(yǔ)態(tài)肯定形式為:_____________________。如句(2)。2．否定形式為:____________________________。如句(1)。3．一般疑問(wèn)句式為：________________________。如句(4)。4．特殊疑問(wèn)句式為：________________________。如句(3)主語(yǔ)+have/hasbeendone主語(yǔ)+have/hasnotbeendoneHave/Has＋主語(yǔ)＋beendone疑問(wèn)詞＋have/has+主語(yǔ)＋beendone現(xiàn)在完成時(shí)被動(dòng)語(yǔ)態(tài)點(diǎn)撥精講(20’)二、把下面句子變成被動(dòng)語(yǔ)態(tài).Thebigfirehasbeenputout.Allthemagazineshavenotbeensoldout.三、現(xiàn)在完成時(shí)被動(dòng)語(yǔ)態(tài)用法

（一）找出表示時(shí)間狀語(yǔ)的詞語(yǔ)并總結(jié)用法。表示一個(gè)被動(dòng)的動(dòng)作或狀態(tài)從過(guò)去開始一直持續(xù)到現(xiàn)在，常連用的時(shí)間狀語(yǔ)有：for+段時(shí)間，since+時(shí)間狀語(yǔ)(從句)，thesedays,sofar,uptonow,inthelast/pastfewyears等。即學(xué)即練：Thisclass_________________(teach)byMr.Brownfortwoyears.HisChinese_________________(improve)alotsincehecametoChina.Rowling’snovels___________________(translate)intomanyforeignlanguagessofar.hasbeentaught

hasbeenimprovedhavebeentranslated（二）表某過(guò)去被動(dòng)動(dòng)作對(duì)現(xiàn)在造成的影響或結(jié)果，常與already,yet,just,ever,never,recently等連用。即學(xué)即練：Thebike____________________(notrepair)yet.I_____

already________________(introduce)toMr.Smith.Thedirtyclotheshavealreadybeencleaned.注意：有些動(dòng)詞沒(méi)有被動(dòng)語(yǔ)態(tài),如不及物動(dòng)詞happen,takeplace,breakout等。Greatchanges__________(take)placeinmyhometowninthepasttenyears.hasnotbeenrepairedhavebeenintroduced

havetakenDiscoveringUsefulStructures現(xiàn)在完成時(shí)態(tài)的被動(dòng)語(yǔ)態(tài)常用于以下情況：1.表示過(guò)去開始的動(dòng)作一直持續(xù)到現(xiàn)在，常與之連用的時(shí)間狀語(yǔ)有：for+一段時(shí)間since+過(guò)去的時(shí)間/句子sofar截至目前upto/tillnow截止目前thesedays近來(lái)overtime隨著時(shí)間的推移in/overthepastyears在過(guò)去的幾年中

2.表示過(guò)去某動(dòng)作對(duì)現(xiàn)在造成了影響或結(jié)果，常與之連用的時(shí)間狀語(yǔ)為：already,yet,just,ever,never,recently等一、含義：1、表示動(dòng)作發(fā)生在過(guò)去,到現(xiàn)在已經(jīng)完成或?qū)ΜF(xiàn)在產(chǎn)生的影響。2、動(dòng)詞和被修飾主語(yǔ)構(gòu)成被動(dòng)關(guān)系。二、構(gòu)成：肯定式：have/hasbeendone否定式：have/hasnotbeendone一般疑問(wèn)句：Have/Has+主語(yǔ)+beendone?特殊疑問(wèn)句：疑問(wèn)詞+have/has+主語(yǔ)+beendone?三、解題步驟

1.找時(shí)2.圈主3.定謂課堂小結(jié)(1’)一.單句語(yǔ)法填空1．Theirnewhouse_______________(decorate)fortwomonthsandtheywillsettleinitinthenearfuture.2．Theirnewcars_________________(advertise)ontheInternetforalongtime.3．Alltheathletes_______________(select)frommillionsofpeoplealloverthecountryinthepasttwomonths.4．Greatchanges___________(take)placeinmyhometowninthepasttenyears.5.She_________(return)thisbooktothelibraryalready.hasbeendecoratedhavebeenadvertisedhavebeenselectedhavetakenhasreturned當(dāng)堂檢測(cè)(15’)DiscoveringUsefulStructuresChangethesentencesintothepresentperfectpassivevoice.Thesoftwarehasbeendownloadedtohelpmyphonebatterylastlonger.Anidentitycardhasbeenlost.HastheWi-Fipasswordbeenconfirmed?Hasthebuttonbeenpressedyettocopythefile?二、單選題(

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

)2.ItisthemostinstructivelecturethatI________sinceIcametothisschool.A．a(chǎn)ttended

B．havebeenattendedC．a(chǎn)mattending

D．haveattended(

)3.Inthelastfewyearsthousandsoffilms________allovertheword.A．haveproduced

B．havebeenproducedC．a(chǎn)reproducing

D．a(chǎn)rebeingproducedADB(

!Anewlibrary________inthecenter.A．isbeingbuilt

B．isbuiltC．isbuilding

D．building(

)5.Wewon'tstarttheworkuntilallthepreparations________.A．a(chǎn)rebeingmade

B．willbemadeC．havebeenmade

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