Unit+2+Wildlife+Protection+Discovering+Useful+Structures+课件-2025-2026学年高中英语人教版（2019）必修第二册

Unit2WildlifeProtection

ReportanongoingeventKnowledgeobjectives:

Usingthepresentcontinuouspassivevoicecorrectly.Makelanguageexpressionmoreaccurate.Skillobjectives:Mastertheformandmeaningofthepresentcontinuouspassivevoice.Emotionalobjectives:Understandwhathappenstoanimalsandarouseawarenessofenvironmentalprotection.Thinkingqualityobjectives:Thinkdeeplyaboutwhatwecandoforwildlifeandexpressourideas.LearninggoalsSimple（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/wouldhavebeendoingreviewTheworkersarebuildingthehouse.theworkers.Whataretheworkersdoing？Thehouseisbeingbuiltby主语谓语宾语Theworkersarebuildingthehouse宾语主语

谓语变被动（时态不变）

be+being+done+bySomeoneishuntingAfricanelephant.someone.Africanelephantisbeinghuntedby主语谓语宾语Someoneishunting

Africanelephant宾语主语

谓语变被动（时态不变）

be+being+done+by()TheyarehuntingTibetanantelopes.them.Tibetanantelopesarebeinghuntedby主语谓语TheyarehuntingTibetanantelopes宾语主语

谓语变被动（时态不变）

be+being+done+by宾语()3.主动语态变被动语态的原则“三变”例：Theyarebuildingnineparks.原句主语变为by短语宾语变为主语谓语由主动变为被动“三不变”原句意思不变原句时态不变原句主谓宾以外成分不变Nineparks______________bythem.Howmanyparks____________?arebeingbuiltarebeingbuilt2.结构

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）一般疑问形式:Am/Is/Are＋主语＋being＋过去分词？AmIbeingwatchedover?4）特殊疑问句的形式:特殊疑问词＋am/is/are＋主语＋being＋过去分词？Howmanybridgesarebeingbuiltinthevillage?1．表示此时此刻正在进行的被动动作。2．表示现阶段正在进行的被动动作(该动作在说话的瞬间未必正在进行。)Mysisterisnowbeinginterviewed.Manyinterestingexperimentsarebeingcarriedoutthesedays.(说话时，并不一定正在进行)3．表示一种经常性的被动行为，常和always，constantly等表示频度的副词连用，这种用法常常带有赞扬或厌恶的感情色彩。Heisalwaysbeingpraisedbytheleader.3.用法2．可与部分情态动词连用，表示对正在发生的事情的推测。Shemay

bebeingpunishedbyhermother.Mycomputerisunderrepair.＝Mycomputerisbeingrepaired.1.动词＋介词构成的短语用于现在进行时的被动语态时,其中的介词不可省略。Thewaystostopillegallyhuntingarebeingtalkedabout.4．某些表示“状态、心理活动、存在”等的动词，如have，want，need，love，一般不用现在进行时的被动语态，而常用一般现在时的被动语态。Withthepopulationincreasing，morelandisneeded.5．“be＋under/in＋n.”可表示现在进行时的被动意义。Theyarebeinghunted,illegally,fortheirvaluablefur.Muchisbeingdonetoprotectwildlife.am/is/arebeingdone

现在进行时被动语态am/is/aredone

一般现在时主动语态

am/is/aredoing

现在进行主动语态PresentContinuousPassiveVoice2LiuTaowouldliketoexpresshisconcernoverthewetlandinhishometown.Helphimfinishthepassagewiththepresentcontinuouspassivevoiceoftheverbsinbrackets.Inthewetlandofmyhometown,therearemanydifferentkindsofanimals,includingwildbirds,fish,snakes,insectsandsoon.WhenIwasinprimaryschool,Ioftenwenttherewithmyfriendstowatchthebirdsandstudythem.Thatwasaninterestingplaceforallofus.Butthingshavebeguntochangeinrecentyears.Smallbirds____________(catch)withnets.Wildducks____________(sell)atfoodmarkets.Fishandsnakes____________(kill)forfoodinrestaurants.Andevenworse,thewetland______________(destroy).Somepart______________(cover)withnewhouses.Youcanseerubbisheverywhere.Thewetland_____________(pollute)seriouslyeveryday.Iamveryworiedaboutit.Whatcanwedo?arebeingcaughtarebeingsoldarebeingkilledisbeingdestroyedisbeingpollutedarebeingcoveredProductionIngroups,discussthequestionsbelow.Preparetogiveapresentationofyourideastotheclass.1.Whatdoyouknowisbeingdoneinyourneighbourhoodtoprotectanimalsandplants?2.Whatsuggestionsdoyouhave?UsefulExpressions:...is(are)beingprotected.Itisgoodfor...It'sawonderfulhabitatfor...Itmakesourenvironmentmore...SampleConversationA:Whatisbeingdoneinourneighbourhoodtoprotectanimalsandplants?B:Well,theoldtreesintheparkarebeingprotected.A:Ohyes.Theyarebeingprotectednotonlybecausetheyareveryoldbutalsobecausetheyarethenaturalhabitatforsongbirds.D:Yes,thatwouldcertainlyhelpmaketheaircleanerforthem.C:That'sright.Perhapstheycoul