Unit2WildlifeProtectionDiscoveringUsefulStructure课件-人教版高中英语

DiscoveringUsefulStructures

新人教必修Book2

Unit2WildlifeProtectionLearningobjectivesInthisclass,youwillidentifythepresentcontinuouspassivevoice;summarisetheformandfunctionofthepresentcontinuouspassivevoice;practiceusingthepresentcontinuouspassivevoiceinsentencesandpassages;giveapresentationapplyingthepresentcontinuouspassivevoicetoshareideasaboutprotectinganimalsandplantsinyourneighbourhood.Whataretheydoinginthepicture?Thepolarbear

.Thepanda

bamboo.Theelephant

sports.isswimmingisdoingiseatingReview:thepresentcontinuoustenseThepolarbearisswimming.Thepandaiseatingbamboo.Theelephantisdoingsports.现在进行时的构成:

___________________be(am/is/are)doingReview:thepresentcontinuoustenseThewhales__________(kill)byhumanbeings.arekilledTherhino____________(hunt)bysomeone.

ishuntedReview:thepassivevoiceThewhales__________(kill)byhumanbeings.werekilledTherhino____________(hunt)bysomeone.

washunted被动语态的基本构成:_________________be+V.ed(过去分词)Review:thepassivevoice（时态和语态结合，先体现时态，后体现语态）现在进行时：am/is/are+V-ing被动语态：

be+done(V过去分词)主语+

am/is/are+being+done+(by…)表进行表被动观察总结：现在进行时的被动语态

结构

现在进行时的被动语态：现在进行时的被动语态PresentContinuousPassiveVoice1.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。Summary2.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?1.表示说话时正在进行的被动动作，句中常用now,

rightnow,

look,atpresent,atthemoment等时间状语连用。1).He

(examine)

bythedoctornow.

2).Look!Thebaby___________________(takecareof)byheraunt.isbeingexaminedarebeingcared

3.现在进行时的被动语态基本用法2.表示现阶段正在进行的被动动作(说话时不一定在进行),句中常用atpresent,thesedays，theseweeks等时间状语。isbeingstudied2).Thedisease_____________(study)atpresentbyscientist.isbeingstudied1)Theproblemoffoodsafety_______________(study)byscientiststhesedays.Childrenofourneighbors______always

____________(praise)byourparents.3.表示一种习惯的被动行为(often,always,frequently,constantly),带有赞扬、羡慕、抱怨，讨厌等感情色彩。beingpraisedareIdon'tunderstandwhymybike______often

_____________(steal).beingstolen

isThechildrenarebeingtakencareof

bytheiraunt.Childrenaretakengoodcareofatschool.Thereportisbeingwrittenbyoneofthestudents.Thereportiswellwritten.Attention1.不可遗漏beingtakecareof,lookafter,talkabout，thinkof等动词与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2.部分介词短语介词不可省略Look!Thebabyisbeingtakencarebyheraunt.ofThistopicisnowbeingtalkedabout.这个话题正在被讨论。3.部分动词无进行时的被动语态阅读句子，指出其错误。Mary,comehere.You'rebeingwantedonthephone.Mary,comehere.You'rewantedonthephone.一些表示状态、心理活动、拥有、存在等的动词，如have，want,need,like,realize等，一般没有进行时的被动语态，而常用一般现在时的被动语态表示此时此刻或目前主语正在承受谓语动词表示的动作。√(4)

表示被动结构“be

+under/

in等介词+名词”

结构可替换进行时被动语态。

is

being

attacked例：1.目前这个城市正受到进攻。The

city

is

under

attack

at

the

moment.

2.桥梁正在建筑中。The

bridge

is

under

construction.

is

being

constructedChoosethesuitableverbformstocompletethesentences.1.I’m(working/beingworked)athometodaybecausemyofficeis(painted/beingpainted).2.Thealarmingreportis(written/beingwritten).Itwillbefinishedsoon.3.Whatpartofthecityis(attacked/beingattacked)now?4.Rightnow,thedeerare(watched/beingwatched)overbymanyvolunteers.5.Whois(hunting/beinghunted)thekangaroos?Wherearethey(hunted/beinghunted)?6.

Itisreportedthatlivingspacesforwildifeare(reduced/beingreduced)duetothecuttingoftrees.Practice请找出下列各句中的错误并改正。1.Look!Afrogisswallowedbyasnakeoverthere.2.Theseanimalsarehuntingatsuchaspeedthattheywilldisappearsoon.3.Willyougowithmetoseethefilmthatisshowntonight?4.Themanhaskilledhiswife.Nowheisbeingwantedbythepolice.5.Thousandsoffamiliesarefleeingtheirhomesbecausetheircountryisunderattacked.beingbeinghuntedbeingbeing用所给动词的正确形式填空。1.Anewcinema___________(build)herenow.2.Alotoftallbuildings___________(set)up,andpeoplewillmovenextyear.3.Thedisease_______________(study)byscientistsatpresent.4.Water___________(boil)at100℃.5.Pandas______________(disappear)inourcountryyearafteryear.6.Thepatient______________(examine)now.Hewillcomeoutsoon.isbeingbuiltarebeingsetisbeingstudiedboilsisbeingexaminedaredisappearingLiuTaowouldliketoexpresshisconcernoverthewetlandinhishometown.Helphimfinishthepassagewiththepresentcontinuouspassivevoiceoftheverbsinbrackets.Inthewetlandofmyhometown,therearemanydifferentkindsofanimals,includingwildbirds,fish,snakes,insectsandsoon.WhenIwasinprimaryschool,Ioftenwenttherewithmyfriendstowatchthebirdsandstudythem.Thatwasaninterestingp