【课件】Unit+2++Discovering+useful+structures2019+必修第二册

Unit2WildlifeProtection--ThePresentContinuousPassiveVoiceDiscoveringUsefulStructureHuaweilaunched(发布,上市)Mate20onOct.16th,2018.HuaweiwilllaunchP50PocketSsoon.Huaweihaslaunchedmanysmartphonessince2009.Huaweihasbeenlaunchingsmartphonessince2009.Warming-upComparethefollowingsentencesandpaymoreattentiontothevoice.Theyarebeinghuntedillegally,fortheirvaluablefur.Muchisbeingdowntoprotectwildlife.Whatmeasuresarebeingtakentohelpthem?Look!Thebabyisbeingtakencareofbyheraunt.PerceptionActivity1:Observetheunderlinedpartsandpaymoreattentiontothetenseandvoice.Theyarebeinghuntedillegally,fortheirvaluablefur.Muchisbeingdonetoprotectwildlife.Whatmeasuresarebeingtakentohelpthem?Look!Thebabyisbeingtakencareofbyheraunt.PresentContinuousPassiveVoice:am/is/arebeing+done新课导入Simple（一般）Continuous（进行）Present（现在）do/doesTenseis/am/aredoingPerfect（完成）Past（过去）Future（将来）Thepastfuture（过去将来）have/hasdonedidwas/weredoinghaddonewill/shalldowill/shallbedoingwill/shallhavedoneshould/woulddoshould/wouldbedoingshould/wouldhavedoneAnalysethestructureBe(amisare)+beingdone现在进行时被动语态（thepresentcontinuouspassivevoice）含义：现在进行时的被动语态表示现在或现阶段正在进行或发生的被动动作，强调主语是动作的承受着。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。一、ThePresentContinuousPassiveVoice

现在进行时被动语态Theyarebeinghunted,illegally,fortheirvaluablefur.Peoplearehuntingthem,illegally,fortheirvaluablefur.Activity2:Focusontheform（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)现在进行时的被动语态：主语+

am/is/are+being+done+(by…)表进行表被动二、现在进行时被动语态2.结构

Understanding

Activity2:Workinpairs.Underlinethepresentcontinuouspassivevoiceinthesentenceanddiscussitsfunction.Africanelephants

arebeinghunted.2.Whatisbeingdone

tohelpthem?3.

Whatmeasuresarebeing

takentohelpthem?Huntersarehunting

Africanelephants.Whatarepeopledoing

tohelpthem?Whatmeasuresarepeople

takingtohelpthem?濒危动物保护措施猎人大家共性：现在进行时表示正在发生的事件。差异：所强调的重点（主语）不同。Activity3:Theusageofthepresentcontinuouspassivevoice.(1)Changetheactivevoiceintopassivevoice.UnderstandingSomeoneishuntingAfricanelephants.SomeoneishuntingAfricanelephants.主语谓语宾语someone.()宾语Africanelephants主语arebeinghuntedby谓语变被动（时态不变）

be+being+done+byLearnthestructuresofpresentcontinuouspassivevoice.肯定句否定句一般疑问句特殊疑问句Trytosummarizethestructuresofpresentcontinuouspassivevoice.be(am/is/are)+beingdonebe(am/is/are)+not+beingdonebe(am/is/are)+主语+beingdone特殊疑问词+be(am/is/are)+主语+beingdoneI’m(working/beingworked)athometodaybecausemyofficeis(painted/beingpainted).Thealarmingreportis(written/beingwritten).Itwillbefinishedsoon.Whatpartofthecityis(attacked/beingattacked)now?Rightnow,thedeerare(watched/beingwatched)overbymanyvolunteers.Whois(hunting/beinghunted)thekangaroos?Wherearethey(hunted/beinghunted)?Itisreportedthatlivingspacesforwildlifeare(reduced/beingreduced)duetothecuttingoftrees.Choosethesuitableverbformstocompletethesentences.1.Theworkersarerepairingthebridge.2.Thestudentsarecleaningtheclassroom.3.Scientistsarestudyingthedisease.4.Oneofthebeststudentsiswritingthereport.UnderstandingThebridgeisbeingrepairedbytheworkers.Theclassroomisbeingcleanedbythestudents.Thediseaseisbeingstudiedbyscientists.Thereportisbeingwrittenbyoneofthebeststudents.(2)Changethefollowingsentencesintopassivevoice.Understanding1.表示此时此刻正在进行的被动动作。Thenewplanisbeingdiscussednow.这个新计划现在正在被讨论。2.表示现阶段正在进行的被动动作,但该动

作不一定此时此刻发生。Severalnewroadsarebeingbuiltinthecity.这个城市有几条新公路正在建设中。Activity3:Theusageofthepresentcontinuouspassivevoice.(3)

Understandthefunction.Thebikeisunderrepairnow.1.

这辆自行车现在正在被修理。

Thebikeisbeingrepairednow.2.

这个计划现在正在被讨论。

Theplanisbeingdiscussedatpresent.3.这个男孩的偷窃行为现在正在被控制。

Theboy'stheftisbeingcontrolledatthemoment.Theplanisunderdiscussionnow.Theboy’stheftisundercontrolatthemoment.(现在)正在被观测

isbeingobserved=is__________________________.(现在)正在被攻击/抨击isunderattack=is___________________________.underobservationbeingattackedWhenIfalldownfromthe11thfloor,—朱德庸漫画thecouple’srelationshipis______________byaquarrel.以恩爱著称的夫妻正在互殴。tearsare________________byPeterwhoappearsstrong.看起来坚强的Peter正在偷偷哭泣。anti-depressiondrugsare_______________byDangdang.丹丹正在吃她的抗忧郁症药。someoneis________________anuncletovisithim.阿伯正在盼望有人拜访他。10F9F7F3FbeingdamagedbeingshedbeingtakenbeingexpectedUnderstanding3.表示一种经常性的被动行为,常和always,constantly,often等副词连用,往往带有夸奖、羡慕、埋怨、讨厌等感情色彩。Tomisalwaysbeingpraisedbyhisteacher.汤姆总受到老师的表扬。Activity3:Theusageofthepresentcontinuouspassivevoice.(3)

Understandthefunction.Understanding4.某些表示“状态、心理活动、存在”等的动词,如have,want,need,love等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(need).随着人口的增长,需要更多的土地。Activity3:Theusageofthepresentcontinuouspassivevoice.(3)

Understandthefunction.

Inthewetlandofmyhometown,therearemanydifferentkindsofanimals,includingwildbirds,fish,snakes,insectsandsoon.WhenIwasinprimaryschool,Ioftenwenttherewithmyfriendstowatchthebirdsandstudythem.Thatwasaninterestingplaceforallofus.Butthingshavebeguntochangeinrecentyears.

Smallbirds__________________(catch)withnets.Wildducks_________________(sell)atfoodmarkets.Fishandsnakes_________________(kill)forfoodinrestaurants.Andevenworse,thewetland___________________(destroy).Someparts__________________(cover)withnewhouses.Youcanseerubbisheverywhere.Thewetland_________________(pollute)seriouslyeveryday.Iamveryworriedaboutit.Whatshouldwedo?arebeingcaughtarebeingsoldarebeingkilledisbeingdestroyedarebeingcoveredisbeingpolluted

一、现在进行时态表将来中的被动语态

WeareseeingtheTibetanantelopesnextweek.

Myfriendisseeingmeoff

nextTuesday.Iambeingvisitedbymygrandparentstomorrow.Thesportsmeet

isbeingheld

threedayslater.

二、现在进行时的被动语态

与

always,constantly等词连用时,表示经常性的被动动作,此时往往带有赞赏、厌恶等感情色彩。e.g.Recentlymydaughterisalwaysbeingpraisedbytheteachers.Totheteacher'sanger,thesamemistakesarealwaysbeingmadebyhisstudents.Activity4.Fillintheblankswiththeproperformsofthewordsinbrackets.Practice1.Sinceyourbike

(repair),youcanusemine.

2.Daisyhasfoundthatalotofantelopes

(hunt)

andkilledforthe

woolbeneaththeirstomachsnow.3.Theinjuredfootballer

(treat)inthehospitalnow.

4.Hehurriedhome,neveroncelookingbacktoseeifhe

(follow).5.—Haveyouhandedinyourschoolworkyet?

—Yes,Ihave.Iguessit

(grade)now.

isbeingrepairedarebeinghuntedisbeingtreatedwasbeingfollowedisbeinggraded写出谓语动词不同时态的被动语态以do为例时态语态一般现在时do/doesam/is/aredone一般过去时did

was/weredone现在进行时am/is/aredoingam/is/arebeingdone过去进行时was/weredoing

was/werebeingdone现在完成时has/havedonehas/havebeendone过去完成时haddone

hadbeendone一般将来时willdo

willbedone过去将来时woulddo

wouldbedonePractice(2)Choosethesuitableverbformstocompletethesentences.I’m(working/beingworked)athometodaybecausemyofficeis(painted/beingpainted).Thealarmingreportis(written/beingwritten).Itwillbefinishedsoon.Whatpartofthecityis(attacked/beingattacked)now?Rightnow,thedeerare(watched/beingwatched)overbymanyvolunteers.Whois(hunting/beinghunted)thekangaroos?Wherearethey(hunted/beinghunted)?Itisreportedthatlivingspacesforwildlifeare(reduced/beingreduced)duetothecuttingoftrees.becauseofcutdownonLastweek，wewatchedthefilmwhich______________(dirct)byChenKaige,XukeandLinChaoxian.Thefilm__________(call)ThebattleAtLakeChangjininEnglish.Lotsofattention_______________(pay)toitbeforeit___________(show).Accordingtothelatestnews,it_______________(watch)byover86millionpeople.It__________________(show)inthecinemabecauseofitspopularity.Itislikelythatthefilm______________(show)inforeigncountriesinthefuture.wasdirectediscalledhadbeenpaidwasshownhasbeenwatchedisstillbeingshownwillbeshownItmayseemthatprotectingwildlifeissomethingfarfromthelifeofahighschoolstudent,butinfact,alot_______________(do)byyoungpeoplearoundtheworld.InWashingtonState,USA,wolverines_________________(study)byscientistsinanefforttolearnhowtopreservethepopulation.However,duringthewinter,itisdifficulttoattracttheanimalstocamerashiddeninsnowyforests.Agroupofstudentsheardabouttheproblemandcreatedaspecialdevicewhich_______________

(test)deepinasnowyforestnow.Theirinvention______________(use)tosendoutacertainsmellnearthecameras.Theshyanimalsareattractedbythesmellandcomingaroundthecameras.They__________________(observe)byaconservationresearcher.arebeingdonearebeingstudiedisbeingtestedisbeingusedarebeingobserved(2)Finishthefollowingpassagewiththeverbsinbrackets.PracticeKeywordsreduce[rɪˈdjuːs]vt./vi.减少；降低；reduceto减少到

reduceby减少了

reducefrom…to从…减少到…e.g.Thesesunglassesaredesignedtoreduceglare.这些太阳镜是为减少刺眼的强光而设计的。

Costshavebeenreducedby20%overthepastyear.

过去一年，各项费用已经减少了20%。Thenumberofemployeeswasreducedfrom40to25.

雇员人数从40人减少到了25人。

Theskirtwasreducedto￡10inthesale.

在大减价期间，这条裙子减价到10英镑。due[

djuː]adj.到期的；预期的；应付的；n.应付款；应得之物dueto由于

beduetodosth预定/计划做某事e.g.Hersuccesswasdueinparttoluck.她的成功在某种程度上是由于运气好。Thefinalinstalmentontheloanisduenextweek.贷款的最后一期付款下个星期到期Myessay'sduenextFriday我的论文下周五必须交。Practice(3)Finishthefollowingpassagewiththepresentcontinuouspassivevoiceoftheverbsinbrackets.Inthewetlandofmyhometown,therearemanydifferentkindsofanimals,includingwildbirds,fish,snakes,insectsandsoon.WhenIwasinprimaryschool,Ioftenwenttherewithmyfriendstowatchthebirdsandstudythem.Thatwasaninterestingplaceforallofus.Butthingshavebeguntochangeinrecentyears.Smallbirds_________________(catch)withnets.Wildducks_______________(sell)atfoodmarkets.Fishandsnakes___________________(kill)forfoodinrestaurants.Andevenworse,thewetland___________________(destroy).Someparts__________________(cover)withnewhouses.Youcanseerubbisheverywhere.Thewetland____________________(pollute)seriouslyeveryday.Iamveryworriedaboutit.Whatcanwedo?arebeingcaughtarebeingsoldarebeingkilledisbeingdestroyedarebeingcoveredisbeingpollutedIngroups,discussthequestionsbelow.Preparetogiveapresentationofyourideastotheclass.A: