高中英语选修七 Unit 03 BPPT课件

.,1,Discoveringusefulwordsandexpressions,Findoutthewordsinthetextandjudgehowtheyhavebeenused.,dive,witness,pause,urge,drag,1,1,2,2,2,.,2,KeytoEx.2.,1.anecdotes,2.Teamwork,3.conservation,4.opposite,5.abandon,KeytoEx.3.,WhenIwasyoung,myparentslikejoggingonthebeach.Soweusedtovisittheseasideonour_holiday.Wealwaysstayedin_closetothe_becausemyparentshadagood_withtheownerofthehotel.Wealsowentsnorkelingeachtimeandwould_underthewavestoseethecolorfulfish.AsIgrewolderIwasallowedtogotogreater_andfurtheroutbeyondthebay.ThereIsawsmall_astheyswamlazilyaroundtheseabottom.OnedayI_howtheywouldpursuetheirpreyswiftly,andthesmallfishhadnotimeto_away.Iwantedto_andwarnthepoorfishbutthatwasimpossibleunderwater.ThankGoditwas;otherwise,Imighthavebeenswallowedinstead!,annual,accommodation,shore,relationship,dive,depths,sharks,witnessed,flee,yell,.,3,Discoveringusefulstructures,KeytoEx.1.,Iheardaloudnoisecomingfromthebay.animaloppositeusthrowingitselfandthencrashingdownagain.IhadalreadyheardthatGorgedidntlikebeingkeptwaitingWithoutpausingwejumpedintotheboatwiththeotherwhalersandandcouldseeOldTomswimmingbytheboat,showingustheway.soGeorgestartedbeatingthewaterwithhisoarandtherewasTom,circlingbacktotheboat,leadingustothehuntagain.Usingatelescopewecouldseethatsomethingwashappening.Icouldseeawhalebeingattackedbyapackofaboutsixotherthekillerovertherearethrowingthemselvesontopofthewhalesblow-holetostopitbreathing.Andthoseothersarestoppingitdivingorfleeingouttosea.Georgetoldme,pointingtowardsthehunt.ThekillersstartedracingbetweenourboatandthewhalejustlikeBeingbadlywoundedthewhalesoondied.Themenstartedturningtheboataroundtogohome.addedRed,laughing.urgedGeorge,shoutingloudly.FromJamessface,Icouldseehewasterrifiedofbeingabandonedbyus.IsawJamesbeingfirmlyheldupinthewater,.,4,KeytoEx.2.,beingattackedBeingheldupBeingincluded,HavingbeenacceptedbeingtoldBeinghelpedout,beingtakenbeingphotographedbeingswallowed,KeytoEx.3.,Fishingnetintheseahavebecomeaseriousproblem.Theymaybemanykilometerslongwithplasticballstokeepthemfloatingonthewater,andweightstoholdthemdownontheseabed.Unfortunately,theplasticnetsareimpossibletoseeunderwater.Sothetermtodescribethemis“awallofdeath”.Theiradvantageisthattheycatchfishefficiently.However,theyalsocausedangertoseaanimals.First,notonlytargetfisharecaughtinthenet,butmanyotherseaanimalsarefoundhangingthere.Thosenotneededformarketingarethrownaway.Second,netsareindangerofbeingcutloosebyfishermen.Ifanetbecomesfree-floating,itismovedbythetidesallovertheocean.Itbehavesasahiddendanger,killingallthataretrappedinit.Somanyanimalsbeingcaughtindriftnetsmakemanythinkthatitisnecessarytohaveaworldwidebanonalldriftnetfishing.,.,5,Unit3,Grammar,RevisethePassiveVoiceofingForm,.,6,一、行为主体不明确，不必说出或者无法说出动作的执行者时。例如：Footballisplayedallovertheworld二、不易找到或根本就不可能找到动作的执行者时。例如：Mybikewasstolen我的自行车被盗了。,何时使用被动语态呢？,.,7,三、汉语中含有“据说”、“据悉”、“有人说”、“大家说”等时。例如：Itissaidthatonedayheclimbedtothetopofahouse.ItwasreportedthathermotherdiedofSARS.众所周知Itiswellknownthat.据推测说Itissupposedthat,.,8,四、汉语中含有“被”、“由”等词时。例如：WeiHuawasaskedtocomebyLinTao魏华是被林涛叫来的。五、某些句子习惯上用被动语态。例如：HewasborninOctober,1989,.,9,六、表示礼貌时。例如：YouarefriendlyinvitedtocometoourEnglishpartyat8:00p.m.tomorrow敬请您明天晚上8：00光临我们的英语晚会。,.,10,V-ing形式由“doing”构成，其否定形式是“notdoing”,V-ing可以带宾语或状语构成V-ing短语，没有人称和数的变化，但有时态和语态的变化。,V-ing形式,.,11,(not)doing,(not)beingdone,(not)havingdone,(not)havingbeendone,.,12,当非限定性动词-ing的逻辑主语是-ing所表示的动作对象时要用-ing的被动形式，包括其一般形式“(not)being+-ed分词和完成形式“(not)havingbeen+-ed分词”。,什么情况用V-ing形式的被动式呢？,.,13,当动词-ing形式的逻辑主语是动作的承受者时，就要用动词-ing形式的被动语态。动词-ing形式的被动语态和它的主动语态一样，在句中可以作主语、宾语、定语、状语。,动词-ing形式的被动语态,.,14,1.Beingkilledbysharksintheseaisacommonthing.2.Beinghelpedoutbythekillerwhales,thewhalerswereabletomakesuccessfulkill.,用作主语,.,15,_tosunlightfortoomuchtimewilldoharmtoonesskin.(上海高考题2002)A.ExposedB.HavingexposedC.BeingexposedD.Afterbeingexposed,分析：本句中expose与onesskin是动宾关系，根据句意，应该是皮肤被暴露在阳光下，所以要用动词-ing形式的被动形式作主语，故答案为C。,.,16,Hewasafraidofbeingscoldedbytheteacher.2.Irememberhavingbeentoldthestory.3.Ididntliketheideaofbeingthrownaboutinaboatonaroughsea.,用作宾语,.,17,V-ing形式既可作动词的宾语,也可作介词的宾语。Thebirdescaped_(catch).Hewasafraidof_(abandon)byus.,beingabandoned,beingcaught,.,18,在avoid,admit,appreciate,complete,consider,delay,enjoy,escape,excuse,finish,forgive,imagine,mind,miss,practise,risk,suggest,giveup,putoff,feellike,insiston等后只接V-ing形式作宾语。,注意,.,19,Theproblembeingdiscussednowisveryimportant.2.Thehousebeingbuiltwillbeourlibraryuponitscompletion.,用作定语,.,20,1.Beingaskedtoanswerthequestion,shecouldntrefuse.2.Havingbeengivensuchagoodchance,howwouldyounotvalueitatall?,用作状语,.,21,Ving一般时和一般时的被动形式;(1)Hehurriedhome,lookingbehindfromtimetotime.(2)Thebuildingbeingrepairedisourdormitory.,.,22,Ving的完成时和完成时的被动形式,(1)Havingheardthis,ourteacherexpressedhersatisfaction.(2)Havingbeenaskedtostay,Icouldntleave.,.,23,在绝大数情况下，句子的逻辑主语是句中的主语，但有时可有一个名词或代词表示逻辑上的主语，这种带逻辑主语的结构称为独立结构。Themeetingbeingover,wealllefttheroomanddrovehome.会议结束后,我们都离开房间开车走了。,.,24,Itbeingaholiday,alltheshopswereshut.由于今天是假日，所有商店都关门了。Theheavyfrostcomingon,deadleaveslaythickontheground.浓霜降临,落叶满地。,.,25,一些动词如need,want,require等作“需要”讲时,其后的动词-ing形式的主动语态表示被动意义,也可以用不定式的被动形式来替换。如：,注意,Theblackboardneedscleaning.=Theblackboardneedstobecleaned.黑板需要擦干净。,.,26,Thebrokenwindowwantsrepairing.=Thebrokenwindowwantstoberepaired.那个破窗户需要修理。,另外注意beworth及beworthy的用法：Theproblemisworthdiscussing.Theproblemisworthyofbeingdiscussed.Theproblemisworthytobediscussed.,以上三个句子都意为“这个问题值得讨论”。,.,27,1.-WhatmadeBillsoangry?-_.Hisgirlfriendpromisedtocomeat8:30,butshehasntcomeyet.A.HavingkeptwaitingB.BeingkeptwaitingC.TobekeptwaitingD.Beingkeptwaited,Practice,.,28,2.Thebuilding_inourschoolisforusteachers.Thoughtheresnoisemostoftheday,westillfeelhappyaboutit.A.builtB.havingbeenbuiltC.tobebuiltD.beingbuilt,.,29,3.Thesquirrelwasluckythatitjustmissed_.A.catchingB.tobecaughtC.beingcaughtD.tocatch,.,30,4.Whileshopping,peoplesometimescanthelp_intobuyingsomethingtheydontreallyneed.A.topersuadedB.persuadingC.beingpersuadedD.bepersuaded,.,31,5._manytimes,theboystilldidntknowhowtodotheexercises.A.HavingtaughtB.HavingbeentaughtC.tau