新人教版英语第二册UNIT-2-Discovering-Useful-Structures课件

人教版必修第二册Period3DiscoveringUsefulStructureThePresentContinuousPassiveVoiceUnit2WildlifeProtection人教版必修第二册Period3DiscoveringU1Learntoknowthestructureofpresentcontinuouspassivevoice.Learntousepresentcontinuouspassivevoicetodescribetheongoingevents.Learntousepresentcontinuouspassivevoicetodescribetheendangeredanimals’conditionsandmeasurestakentohelpthem.Learntoknowthestructureof2Haveyoustillrememberedthestructureofpresentcontinuoustense?Haveyoustillrememberedtheuseofpresentcontinuoustense?Haveyoustillrememberedthe3LearntoknowthestructureofpresentcontinuouspassivevoiceLearntoknowthestructureof4课本18页第1题Underlinethepresentcontinuouspassivevoiceinthesentencesanddiscussitsfunction.Africanelephantsarebeinghunted.Whatisbeingdonetohelpthem?Whatmeasuresarebeingtakentohelpthem?am/is/are+being+P.P课本18页第1题Underlinethepresent5Findmoresentenceswiththesameverbforminthisunit.Theyarebeinghunted,illegally,fortheirvaluablefur.Muchisbeingdonetoprotectwildlife.Findmoresentenceswiththes6theuseofpresentcontinuouspassivevoicePresentcontinuouspassivevoiceisusedinthesameconditionswherepresentcontinuoustenseisused.Butitexpressapassivevoice.theuseofpresentcontinuous7Theyarebeinghunted,illegally,fortheirvaluablefur.PeoplearehuntingTibetanantelopes,illegally,fortheirvaluablefur.Thetwosentencesaretellingthesamethingbutintwodifferentways.Theyarebeinghunted,illegal8Summary现在进行时的被动语态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。PresentContinuousPassiveVoiceSummary现在进行时的被动语态1.定义表示“某人/事9egThemanisbeingquestionedbythepolicenow.Measuresarebeingtakentoprotectthoseendangeredanimals.AmIbeingtakenforaride?egThemanisbeingquestione102.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?2.句型1）肯定形式：am/is/are＋being＋过11主语+am/is/are+being+done…1.肯定式2.否定式1.SheisbeingtreatedinChinanow.2.Mycomputerisbeingrepairednow.我的电脑正在修理中。notnotnot主语+am/is/are+being+12Am/Is/Are+主语+being+done…3.一般疑问式e.g:1.ArethesebooksbeingsenttoBeijing？2.___________________________?

Isthewallbeingpainted4.特殊疑问式疑问词WhenHowWhereWhyWhatAm/Is/Are+主语+bei133.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____________?arebeingbuiltarebeingbuilt3.主动语态变被动语态的原则“三变”例：Theyare14PlaygamesWhataretheydoingnow?Ahouseisbeingbuiltbytheworkers.Theworkersarebuildingahouse.PlaygamesWhataretheydoing15Theworkersarebuildingthehouse.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+byTheworkersarebuildingtheh16SomeoneishuntingAfricanelephant.someone.Africanelephantisbeinghuntedby主语谓语宾语SomeoneishuntingAfricanelephant宾语主语

谓语变被动（时态不变）

be+being+done+by()SomeoneishuntingAfricanele17TheyarehuntingTibetanantelopes.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()TheyarehuntingTibetanante18PandasarebeingprotectedinWolongNaturalReserve.Pandasarebeingprotectedin19

结构：_________________am/is/arebeing+doneAbasketballisbeingplayedbyMiki.Abookisbeingreadbythegirl.Ourfurisbeingusedtomakesweatersforpeoplelikeyou.……小结：PresentProgressivePassiveVoice

现在进行时的被动语态结构：_________________am/is/20WhendoweusethePresentProgressivePassiveVoice?Whendoweusethe21WHEN①表示说话时正在进行的被动动作.(now,atthemoment)ActionsarebeingtakentorealizeChineseDream.WHEN①表示说话时正在进行的被动动作.(now,att22②表示现阶段正在进行的被动动作.

(说话时不一定在进行)

Theproblemoffoodsafetyisbeingstudiedbyscientistsatpresent.②表示现阶段正在进行的被动动作.

(说话时不一定在进23③表示一种习惯的被动行为(always,constantly),带有赞扬、羡慕、讨厌等感情色彩。Childrenofourneighborsarealwaysbeingpraisedbyourparents.③表示一种习惯的被动行为(always,constantl24④与某些情态动词连用表示对正在发生的动作进行推测

Asaresultofstayinguplatetalkinglastnight,Jimmymaybebeingscoldedbyhisheadteacher.④与某些情态动词连用表示对正在发生的动作进行推测

Asa25【拓展】

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。egRecentlymydaughterisalwaysbeingpraisedbytheteachers.Totheteacher'sanger,thesamemistakesarealwaysbeingmadebyhisstudents.【拓展】

26（1）少数及物动词的进行时表示按计划、安

排将要承受某个动作。例：1.今晚将要举办一场晚会。

Anparty___________(held)tonight.2.下面将唱一首民歌。A

folk

song___________

(sing)next.

3.据说下周日早上八点他将开飞机去。

It

is

saidthataplane___________(flow)

by

him

to

America

at

eight

next

Sunday

morning.

isbeingheldis

being

sungisbeing

flown（1）少数及物动词的进行时表示按计划、安例：isbeing27(2)没有进行时的被动语态一些表示状态、心理活动、拥有、存在等的动词(和主动语态一样)一般不用进行时被动语态,常用一般现在时被动语态表示此时此刻或目前主语承受谓语动词的动作如have，want，need，love，。

【练习】判断正误。小王,过来,有你的电话。Xiao

Wang,

come

here.

You

are

being

wantedon

the

phone.Xiao

Wang,

come

here.

You

are

wanted

on

the

phone.

Withthepopulationincreasing，morelandisneeded.(2)没有进行时的被动语态一些表示状态、心理活动、拥有、存在28(3)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

constructed(3)表示被动结构“be

+under/

in等介词+名词”29UsepresentcontinuouspassivevoiceinproperformsUsepresentcontinuouspassive30课本18页第2题Choosethesuitableverbformstocompletethesentences.1.I’m(working/beingworked)athometodaybecausemyofficeis(painted/beingpainted).2.Thealarmingreportis(written/beingwritten).Itwillbefinishedsoon.3.Whatpartofthecityis(attacked/beingattacked)now?课本18页第2题Choosethesuitableve314.Rightnow,thedeerare(watched/beingwatched)overbymanyvolunteers.5.Whois(hunting/beinghunted)thekangaroos?Wherearethey(hunted/beinghunted)?6.It’sreportedthatlivingspacesforwildlifeare(reduced/beingreduced)duetothecuttingoftrees.n.

鹿n.

袋鼠vt.

减少4.Rightnow,thedeerare(wa321.Wearedoingmanythingstoprotecttheanimals.Manythingsarebeingdonetoprotecttheanimals.Changethesentencesintotheirpassivevoice.2.WeareseeingtheTibetanantelopesnextweek.TheTibetanantelopesarebeingseennextweek.1.Wearedoingmanythingsto333.WeareobservingtheTibetanantelopesthese

days.TheTibetanantelopesarebeingobservedthesedays.3.WeareobservingtheTibeta34Haveyouvisitedawetland?Haveyouvisitedawetland?35Whatcanyouseeinthewetland?Whatcanyouseeinthewetlan36Whyshouldwesetupthewetland?Whyshouldwesetupthewetla37课本18页第3题LiuTaowouldliketoexpresshisconcernoverthewetlandinhishometown.Helphimfinishthepassagewiththepresentcontinuouspassivevoiceoftheverbsinbrackets.Inthewetlandofmyhometown,therearemanydifferentkindsofanimals,includingwildbirds,fish,snakes,insectsandsoon.WhenIwasinprimaryschool,Ioftenwenttherewithmyfriendstowatchthebirdsandstudythem.Thatwasaninterestingplaceforallofus.Butthingshavebeguntochangeinrecentyears.n.

昆虫课本18页第3题LiuTaowouldliketo38Smallbirds______________(catch)withnets.Wildducks_____________(sell)atfoodmarkets.Fishandsnakes_____________(kill)forfoodinrestaurants.Andevenworse,thewetland_______________(destroy).Someparts______________(cover)withnewhouses.Youcanseerubbisheverywhere.Thewetland_____________(pollute)seriouslyeveryday.Iamveryworriedaboutit.Whatshouldwedo?arebeingcaughtarebeingsoldarebeingkilledisbeingdestroyedarebeingcoveredisbeingpollutedn.

网Smallbirds______________(ca39WhydoesLinTaousepresentcontinuouspassivevoiceinthepassage?Inwhatconditionscanweusepresentcontinuouspassivevoicewhenweareexpressingourideas?WhydoesLinTaousepresentc40Itis

reportedthatlivingspacesforwildlifearebeingreducedduetothecuttingoftrees.reduce

vt.

tomakesomethingsmallerorlessinsize,amount,orprice缩小;减少;降低Itisreportedthatlivingspa41【归纳】reducereduce...(from...)to...把……（从……）减少到……reduce...tosth./doingsth.使……陷入某种状况/状态reduce...by...把……减少……

reducesb.to...降职【归纳】reducereduce...(from...42egMyweightreduceswhenIstopeatingsugar.Itreducestherisksofheartdisease.Thenewbridgeshouldreducetravellingtime(from50minutes)to15minutes.Costsonbookshavebeenreducedby20%overthepastyear.egMyweightreduceswhenIs43【语境应用】根据提示完成句子。1)Thenumberoftheemployees_________________________(被削减了)40%inthelastfivemonths.2)Thepopulationherehas___________________(减少到)fiftythousandnow.3)那个军官被降职成一名士兵。

Theofficerwasreducedtoasoldier.hasbeenreducedbybeenreducedto【语境应用】根据提示完成句子。44

【归纳】

dueadj.预定的;到期的

dueto:becauseof

由于；因为

预期做某事,预定要做某事

beduetosth./sb.

归因于某事/某人;欠某人……

bedueforsth.应有某物;应得到某物

【联想】表示“由于,因为”的短语还有:becauseof,asaresultof,thanksto,onaccountof,owingto等。【归纳】45【语境应用】单句语法填空。1)Thepolicemansaidtheaccidentlastnightwas_____________driving.

警察说昨晚的事故是由于粗心驾驶造成的。2)Hisnewbook___________________nextyear.

他的新书预计明年出版。duetocarelessisduetobepublished【语境应用】单句语法填空。duetocarelessis46UsepresentcontinuouspassivevoicetodescribewildlifeprotectioninyoursurroundingsUsepresentcontinuouspassive47Ingroups,discussthequestionsbelow.Preparetogiveapresentationofyourideastotheclass.Whatdoyouknowisbeingdoneinyourneighbourhoodtoprotectanimalsandplants?Whatsuggestionsdoyouhave?n.

临近的地方；街区Ingroups,discussthequestio48A:Whatisbeingdoneinourneighbourhood

toprotectanimalsandplants?B:Well,theoldtreesintheparkarebeing

protected.A:Ohyes.Theyarebeingprotectednotonly

becausetheyarethenaturalhabitatfor

songbirds.A:Whatisbeingdoneinourn49C:That’sright.Perhapstheycouldhelp

protectthebirdsbymakingtheroads

aroundtheparkfreefromcars.D:Yes,thatwouldcertainlyhelpmakethe

aircleanerforthem…C:That’sright.Perhapsthey50FinishthediscussinActivity4.FinishthediscussinActivity51人教版必修第二册Period3DiscoveringUsefulStructureThePresentContinuousPassiveVoiceUnit2WildlifeProtection人教版必修第二册Period3DiscoveringU52Learntoknowthestructureofpresentcontinuouspassivevoice.Learntousepresentcontinuouspassivevoicetodescribetheongoingevents.Learntousepresentcontinuouspassivevoicetodescribetheendangeredanimals’conditionsandmeasurestakentohelpthem.Learntoknowthestructureof53Haveyoustillrememberedthestructureofpresentcontinuoustense?Haveyoustillrememberedtheuseofpresentcontinuoustense?Haveyoustillrememberedthe54LearntoknowthestructureofpresentcontinuouspassivevoiceLearntoknowthestructureof55课本18页第1题Underlinethepresentcontinuouspassivevoiceinthesentencesanddiscussitsfunction.Africanelephantsarebeinghunted.Whatisbeingdonetohelpthem?Whatmeasuresarebeingtakentohelpthem?am/is/are+being+P.P课本18页第1题Underlinethepresent56Findmoresentenceswiththesameverbforminthisunit.Theyarebeinghunted,illegally,fortheirvaluablefur.Muchisbeingdonetoprotectwildlife.Findmoresentenceswiththes57theuseofpresentcontinuouspassivevoicePresentcontinuouspassivevoiceisusedinthesameconditionswherepresentcontinuoustenseisused.Butitexpressapassivevoice.theuseofpresentcontinuous58Theyarebeinghunted,illegally,fortheirvaluablefur.PeoplearehuntingTibetanantelopes,illegally,fortheirvaluablefur.Thetwosentencesaretellingthesamethingbutintwodifferentways.Theyarebeinghunted,illegal59Summary现在进行时的被动语态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。PresentContinuousPassiveVoiceSummary现在进行时的被动语态1.定义表示“某人/事60egThemanisbeingquestionedbythepolicenow.Measuresarebeingtakentoprotectthoseendangeredanimals.AmIbeingtakenforaride?egThemanisbeingquestione612.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?2.句型1）肯定形式：am/is/are＋being＋过62主语+am/is/are+being+done…1.肯定式2.否定式1.SheisbeingtreatedinChinanow.2.Mycomputerisbeingrepairednow.我的电脑正在修理中。notnotnot主语+am/is/are+being+63Am/Is/Are+主语+being+done…3.一般疑问式e.g:1.ArethesebooksbeingsenttoBeijing？2.___________________________?

Isthewallbeingpainted4.特殊疑问式疑问词WhenHowWhereWhyWhatAm/Is/Are+主语+bei643.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____________?arebeingbuiltarebeingbuilt3.主动语态变被动语态的原则“三变”例：Theyare65PlaygamesWhataretheydoingnow?Ahouseisbeingbuiltbytheworkers.Theworkersarebuildingahouse.PlaygamesWhataretheydoing66Theworkersarebuildingthehouse.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+byTheworkersarebuildingtheh67SomeoneishuntingAfricanelephant.someone.Africanelephantisbeinghuntedby主语谓语宾语SomeoneishuntingAfricanelephant宾语主语

谓语变被动（时态不变）

be+being+done+by()SomeoneishuntingAfricanele68TheyarehuntingTibetanantelopes.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()TheyarehuntingTibetanante69PandasarebeingprotectedinWolongNaturalReserve.Pandasarebeingprotectedin70

结构：_________________am/is/arebeing+doneAbasketballisbeingplayedbyMiki.Abookisbeingreadbythegirl.Ourfurisbeingusedtomakesweatersforpeoplelikeyou.……小结：PresentProgressivePassiveVoice

现在进行时的被动语态结构：_________________am/is/71WhendoweusethePresentProgressivePassiveVoice?Whendoweusethe72WHEN①表示说话时正在进行的被动动作.(now,atthemoment)ActionsarebeingtakentorealizeChineseDream.WHEN①表示说话时正在进行的被动动作.(now,att73②表示现阶段正在进行的被动动作.

(说话时不一定在进行)

Theproblemoffoodsafetyisbeingstudiedbyscientistsatpresent.②表示现阶段正在进行的被动动作.

(说话时不一定在进74③表示一种习惯的被动行为(always,constantly),带有赞扬、羡慕、讨厌等感情色彩。Childrenofourneighborsarealwaysbeingpraisedbyourparents.③表示一种习惯的被动行为(always,constantl75④与某些情态动词连用表示对正在发生的动作进行推测

Asaresultofstayinguplatetalkinglastnight,Jimmymaybebeingscoldedbyhisheadteacher.④与某些情态动词连用表示对正在发生的动作进行推测

Asa76【拓展】

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。egRecentlymydaughterisalwaysbeingpraisedbytheteachers.Totheteacher'sanger,thesamemistakesarealwaysbeingmadebyhisstudents.【拓展】

77（1）少数及物动词的进行时表示按计划、安

排将要承受某个动作。例：1.今晚将要举办一场晚会。

Anparty___________(held)tonight.2.下面将唱一首民歌。A

folk

song___________

(sing)next.

3.据说下周日早上八点他将开飞机去。

It

is

saidthataplane___________(flow)

by

him

to

America

at

eight

next

Sunday

morning.

isbeingheldis

being

sungisbeing

flown（1）少数及物动词的进行时表示按计划、安例：isbeing78(2)没有进行时的被动语态一些表示状态、心理活动、拥有、存在等的动词(和主动语态一样)一般不用进行时被动语态,常用一般现在时被动语态表示此时此刻或目前主语承受谓语动词的动作如have，want，need，love，。

【练习】判断正误。小王,过来,有你的电话。Xiao

Wang,

come

here.

You

are

being

wantedon

the

phone.Xiao

Wang,

come

here.

You

are

wanted

on

the

phone.

Withthepopulationincreasing，morelandisneeded.(2)没有进行时的被动语态一些表示状态、心理活动、拥有、存在79(3)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

constructed(3)表示被动结构“be

+under/

in等介词+名词”80UsepresentcontinuouspassivevoiceinproperformsUsepresentcontinuouspassive81课本18页第2题Choosethesuitableverbformstocompletethesentences.1.I’m(working/beingworked)athometodaybecausemyofficeis(painted/beingpainted).2.Thealarmingreportis(written/beingwritten).Itwillbefinishedsoon.3.Whatpartofthecityis(attacked/beingattacked)now?课本18页第2题Choosethesuitableve824.Rightnow,thedeerare(watched/beingwatched)overbymanyvolunteers.5.Whois(hunting/beinghunted)thekangaroos?Wherearethey(hunted/beinghunted)?6.It’sreportedthatlivingspacesforwildlifeare(reduced/beingreduced)duetothecuttingoftrees.n.

鹿n.

袋鼠vt.

减少4.Rightnow,thedeerare(wa831.Wearedoingmanythingstoprotecttheanimals.Manythingsarebeingdonetoprotecttheanimals.Changethesentencesintotheirpassivevoice.2.WeareseeingtheTibetanantelopesnextweek.TheTibetanantelopesarebeingseennextweek.1.Wearedoingmanythingsto843.WeareobservingtheTibetanantelopesthese

days.TheTibetanantelopesarebeingobservedthesedays.3.WeareobservingtheTibeta85Haveyouvisitedawetland?Haveyouvisitedawetland?86Whatcanyouseeinthewetland?Whatcanyouseeinthewetlan87Whyshouldwesetupthewetland?Whyshouldwesetupthewetla88课本18页第3题LiuTaowouldliketoexpresshisconcernoverthewetlandinhishometown.Helphimfinishthepassagewiththepresentcontinuouspassivevoiceoftheverbsinbrackets.Inthewetlandofmyhometown,therearemanydifferentkindsofanimals,includingwildbirds,fish,snakes,insectsandsoon.WhenIwasinprimaryschool,Ioftenwenttherewithmyfriendstowatchthebirdsandstudythem.Thatwasaninterestingplaceforallofus.Butthingshavebeguntochangeinrecentyears.n.

昆虫课本18页第3题LiuTaowouldliketo89Smallbirds______________(catch)withnets.Wildducks_____________(sell)atfoodmarkets.Fishandsnakes_____________(kill)forfoodinrestaurants.Andevenworse,thewetland_______________(destroy).Someparts______________(cover)withnewhouses.Youcanseerubbisheverywhere.Thewetland_____________(pollute)seriouslyeveryday.Iamveryworriedaboutit.Whatshouldwedo?arebeingcaughtarebeingsoldarebeingkilledisbeingdestroyedarebeingcoveredisbeingpollutedn.

网Smallbirds______________(ca90WhydoesLinTaousepresentcontinuouspassivevoiceinthepassage?Inwhatconditionscanweusepresentcontinuouspassivevoicewhenweareexpressingourideas?WhydoesLinTaousepresentc91Itis

reportedthatlivingspacesforwildlifearebeingreducedduetothecuttingoftrees.reduce

vt.

tomakesomethingsmallerorlessinsize,amount,orprice缩小;减少;降低Itisreportedthatlivingspa92【归纳】reducereduce...(from...)to...把……（从……）减少到……reduce...tosth./doingsth.使……陷