Unit2WildlifeProtectionPeriod4DiscoveringUsefulStructures（精讲课件）高一英语上学期（人教版2019）

Teachingobjectives1.Learntoknowthestructureofpresentcontinuouspassivevoice.2.Learntousepresentcontinuouspassivevoicetodescribetheongoingevents.3.Learntousepresentcontinuouspassivevoicetodescribetheendangeredanimals’conditionsandmeasurestakentohelpthem.Simple（一般）Continuous（进行）Present（现在）do/doesTenseis/am/aredoingPerfect（完成）Perfectcontinuous（完成）Past（过去）Future（过去）Thepastfuture（过去将来）have/hasdonehave/hasbeendoingdidwas/weredoinghaddoneHadbeendoingwill/shalldowill/shallbedoingwill/shallhavedonewill/shallhavebeendoingshould/woulddoshould/wouldbedoingshould/wouldhavedoneshould/wouldhavebeendoingLeadinActivevoice(主动语态)

Passiveform(被动语态)

(1)Itakeabook.(1)Thebookistakenbyme.(2)Hewaterstheflowerseveryday.(2)Theflowersarewateredbyhimeveryday.(3)Thefamersdon'tgrowapplesonthefarm.(3)Applesarenotgrownbythefarmersonthefarm.(4)Canweputourbikeshere?(4)Canourbikebeputhere?ThestructureofpresentcontinuouspassivevoiceReadthethreesentencesandtrytofindthefunctionsofpresentcontinuouspassivevoice.Africanelephantsarebeinghunted.Whatisbeingdonetohelpthem?Whatmeasuresarebeingtakentohelpthem?Books…arebeing…read…bystudents.…Africanelephantsarebeinghunted.Objectam/is/arebeingpastparticiple(by+Subject)+++

Presentcontinuoustense(现在进行时)

Presentcontinuouspassivetense(现在进行时被动语态)

(1)Iamreadingabook.(1)Thebookisbeingreadbyme.(2)Theyarehuntingadear.(2)Thedearisbeinghuntbythem.(3)Tomisplayingtheguitar.(3)TheguitarisbeingplayedbyTom.1.定义

表示“某人/事此时此刻正在被…”，主语是动作的承受者,表示说话时或现阶段某个被动的动作正在进行。1.PandasarebeingprotectedinWolongNationalReserve.2.Amodernschoolisbeingbuiltforthestudentsthesemonths.3.AChristmaspartyisbeingheldtonight.4.Tomisalwaysbeingpraisedbytheteacher.说话时正在进行的被动动作现阶段正在进行的被动动作按计划或安排将要进行的一个被动动作经常的被动行为2.句型

1）肯定形式：am/is/are＋being＋过去分词Thehouseisbeingpainted.2）否定形式:am/is/are＋not＋being＋过去分词Thetreesarenotbeingwatered.3）疑问形式:Am/Is/Are＋主语＋being＋过去分词？AmIbeingwatchedover?4）特殊疑问句的形式:把特殊疑问词放在一般疑问句前面。Howmanybridgesarebeingbuiltinthevillage?Summary时态一般时进行时完成时现在时过去时将来时am/is/aredoneam/is/arebeingdonewas/weredoneshall/willbedonewas/werebeingdonehadbeendoneshall/willhavebeendonehas/havebeendonePractice1.I'm(working/beingworked)athometodaybecausemyofficeis(painted/beingpainted).2.Thealarmingreportis(written/beingwritten).Itwillbefinishedsoon.Practice3.Whatpartofthecityis(attacked/beingattacked)now?4.Rightnow,thedeerare(watched/beingwatched)overbymanyvolunteers.Practice5.Whois(hunting/beinghunted)thekangaroos?Wherearethey(hunted/beinghunted)?6.Itisreportedthatlivingspacesforwildifeare(reduced/beingreduced)duetothecuttingoftrees.LiuTaowouldliketoexpresshisconcernoverthewetlandinhishometown.Helphimfinishthepassagewiththepresentcontinuouspassivevoiceoftheverbsinbrackets.PracticePracticeInthewetlandofmyhometown,therearemanydifferentkindsofanimals,includingwildbirds,fish,snakes,insectsandsoon.WhenIwasinprimaryschool,Ioftenwenttherewithmyfriendstowatchthebirdsandstudythem.Thatwasaninterestingplaceforallofus.Butthingshavebeguntochangeinrecentyears.Smallbirds________________(catch)withnets.Wildducks_____________(sell)atfoodarebeingcaughtarebeingsoldPracticeFishandsnakes______________(kill)forfoodinrestaurantsandevenworse,thewetland_________________(destroy).Someparts________________(cover)withnewhouses.Youcanseerubbisheverywhere.Thewetland_________________(pollute)seriouslyeveryday.Iamveryworriedaboutit.Whatcanwedo?arebeingkilledisbeingdestroyedarebeingcoveredisbeingpollutedSummary现在进行时的被动语态1.定义:表示说话时或现阶段正在进行的被动动作，强调主语是动作的承受者。2.句型结构:

肯定句：am/is/are+being+v-ed

否定句：am/is/are+not+being+v-ed

一般疑问：Am/Is/Are+主语+being+v-ed+其他？

特殊疑问句：

疑问词+am/is/are+being+v-ed？

疑问词+am/is/are+主语+being+v-ed+其他？3.用法： (1)主语是动作的承受者且动作正在发生或持续。 (2)一种习惯的被动行为，常与always,constantly

等频度副词连用，常有赞赏或讨厌等感情色彩。 (3)与某些情态动词连用，表示对正在发生动作的推测。4.特殊用法。RevisionofthePassiveVoiceEveryyearover29,000antelopes________(kill)inTibet.2.Inthepast,theelephants__________(kill)byfarmers.3.Inthepasttwentyyears,alargenumberofbambooareas______________(setup)tohelppandasgrow.arekilledwerekilledhavebeensetup一般现在时被动语态一般过去时被动语态现在完成时被动语态4.Atpresentanewhome____________(build)forpandas.isbeingbuilt现在进行时被动语态RevisionofthePassiveVoice5.WWFhopesthatmoreandmorewildanimals______________(protect)inthefuture.将来时被动语态willbeprotected6.LilyjusttoldmeJack____________(fire)sincelastmonth.hadbeenfired7.Myhomework___________________whenyouarrivetomorrow.willhavebeenfinished过去完成时被动语态将来完成时被动语态Ingroups,discussthequestionsbelow.Preparetogiveapresentationofyourideastotheclass.DiscussionPossibleanswer: