【課件】Unit2Period3Discoveringusefulstructures課件高中英語人教版(2019)必修第二冊

Period3DiscoveringUsefulStructuresUnit2WildlifeProtectionReportanongoingeventReviewSimple（一般）Continuous（進行）Present（現(xiàn)在）do/doesTenseis/am/aredoingPerfect（完成）Perfectcontinuous（完成）Past（過去）Future（過去）Thepastfuture（過去將來）have/hasdonehave/hasbeendoingdidwas/weredoinghaddoneHadbeendoingwill/shalldowill/shallbedoingwill/shallhavedonewill/shallhavebeendoingshould/woulddoshould/wouldbedoingshould/wouldhavedoneshould/wouldhavebeendoingReviewChangethesentencesintothepassiveform.Activevoice(主動語態(tài))

Passiveform(被動語態(tài))

(1)Itakeabook.(1)Thebookistakenbyme.(2)Hewaterstheflowerseveryday.(2)Theflowersarewateredbyhimeveryday.(3)Thefamersdon'tgrowapplesonthefarm.(3)Applesarenotgrownbythefarmersonthefarm.(4)Canweputourbikeshere?(4)Canourbikebeputhere?(3)Whatmeasuresarebeingtakentohelpthem?(2)Whatisbeingdonetohelpthem?(1)Africanelephantsarebeinghunted.UnderlinethepresentcontinuouspassivevoiceinthesentencesanddiscussitsfunctionLead-inHuntersarehuntingAfricanelephants.Whatarepeopledoingtohelpthem?Whatmeasuresarepeopletakingtohelpthem?Findmoresentenceswiththesameverbforminthisunit.(16Paragraph2)Theyarebeinghunted,illegally,fortheirvaluablefur.(16Paragraph7)Muchisbeingdonetoprotectwildlife.Lead-in…ExploretherulesAbasketballisbeingplayedbyMiki.Abookisbeingreadbythegirl.Ourfurisbeingused

tomakesweatersforpeoplelikeyou.小結：PresentProgressivePassiveVoice

現(xiàn)在進行時的被動語態(tài)1.定義：________________________________________________________________________________________________1.定義：________________________________________________________________________________________________表示“某人/事此時此刻正在被…”，主語是動作的承受者,表示說話時或現(xiàn)階段某個被動的動作正在進行。2.結構

1）肯定形式：am/is/are＋being＋過去分詞Thehouseisbeingpainted.2）否定形式:am/is/are＋not＋being＋過去分詞Thetreesarenotbeingwatered.3）疑問形式:Am/Is/Are＋主語＋being＋過去分詞？AmIbeingwatchedover?4）特殊疑問句的形式:把特殊疑問詞放在一般疑問句前面。Howmanybridgesarebeingbuiltinthevillage?1.Theplan_______________thismonth.

計劃本月正在執(zhí)行。2.Yourcomputer__________________now.現(xiàn)在沒人修理你的電腦。3.____thesefields___________thisweek？這周有人在給這些地澆水嗎？4.Where____you_______________now？

現(xiàn)在你們在哪里接受面試？isbeingcarriedoutisnotbeingrepairedArebeingwateredarebeinginterviewed3.主動語態(tài)變被動語態(tài)的原則“三變”例：Theyarebuildingnineparks.原句主語變?yōu)閎y短語賓語變?yōu)橹髡Z謂語由主動變?yōu)楸粍印叭蛔儭痹湟馑疾蛔冊鋾r態(tài)不變原句主謂賓以外成分不變Nineparks______________bythem.Howmanyparks____________?arebeingbuiltarebeingbuilt例：1.Mary_______________(interview)now.2.Look!Thebaby___________________(takecareof)byheraunt.3.Thedisease_____________(study)atpresentbyscientist.4.現(xiàn)在進行時的被動語態(tài)基本用法：（1）表示現(xiàn)在正在進行的被動動作。isbeingtakencareofisbeingstudiedisbeinginterviewed（1）表示現(xiàn)在正在進行的被動動作。例：1.今晚將要舉辦一場晚會。Anparty___________(held)tonight.2.下面將唱一首民歌。A

folk

song___________

(sing)next.

3.據(jù)說下周日早上八點他將開飛機去。

It

is

saidthataplane_______________(flow)

by

him

to

America

at

eight

next

Sundaymorning.

isbeingheldis

being

sungisbeing

flown（2）少數(shù)及物動詞的進行時表示按計劃、安排將要承受某個動作。(3)沒有進行時的被動語態(tài)【練習】判斷正誤。小王,過來,有你的電話。Xiao

Wang,

come

here.

You

are

being

wantedon

the

phone.Xiao

Wang,

come

here.

You

are

wanted

on

the

phone.

一些表示狀態(tài)、心理活動、擁有、存在等的動詞(和主動語態(tài)一樣)一般不用進行時被動語態(tài),常用一般現(xiàn)在時被動語態(tài)表示此時此刻或目前主語承受謂語動詞的動作。

(4)表示被動結構“be

+under/

in等介詞+名詞”結構可替換進行時被動語態(tài)。

is

being

attacked例：1.目前這個城市正受到進攻。The

city

is

under

attack

at

the

moment.

2.橋梁正在建筑中。The

bridge

is

under

construction.

is

being

constructedChoosethesuitableverbform.I’m(working/beingworked)athometodaybecausemyofficeis(painted/beingpainted).Thealarmingreportis(written/beingwritten).Itwillbefinishedsoon.Whatpartofthecityis(attacked/beingattacked)now?Rightnowthedeerare(watched/beingwatcher)overbymanyvolunteers.Whois(hunting/beinghunted)thekangaroos?Wherearethey(hunted/beinghunted)?Itisreportedthatlivingspacesforwildlifeare(reduced/beingreduced)duetothecuttingoftrees.√√√√√√√Activ.

1√ThepassageisaboutLiuTao’sconcernofthewetlandinhishometownInthewetlandofmyhometown,therearemanydifferentkindsofanimals,includingwildbirds,fish,snakes,insectsandsoon.WhenIwasinprimaryschool,Ioftenwenttherewithmyfriendstowatchthebirdsandstudythem.Thatwasaninterestingplaceforallofus.Butthingshavebeguntochangeinrecentyears.Activ.

2Activ.

2Whatishappeningtothesmallbirdsinthewetland?Whatishappeningtothewildducks?Whatishappeningtothefishandsnakes?Question&AnswerLiuTao’sconcernaboutwetlandsinhishometown.Smallbirds__________________(catch)withnets.arebeingcaughtWildducks_______________(sell)atfoodmarkets.arebeingsoldFishandsnakes______________(kill)forfoodinrestaurants.arebeingkilledActiv.

2Whatishappeningtothewetland?Whatdoyouthinkshouldbedonetoprotectthewetland?Thewetland___________________(destroy).Someparts_________________(cover)withnewhouse.Youcanseerubbisheverywhere.Thewetland_________________(pollute)seriouslyeveryday.arebeingdestroyedarebeingcoveredisbeingpollutedQuestion&AnswerProductionIngroups,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.Perhapstheycouldhelpprotectthebirdsbymakingtheroadsaroundtheparkfreefromcars.1.現(xiàn)在進行時的被動語態(tài)的基本結構肯定結構be(am/is/are)beingdone否定結構be(am/is/are)+not+beingdone一般疑問結構be(am/is/are)+主語+beingdone特殊疑問結構特殊疑問詞+be(am/is/are)+主語+beingdoneSummary（1）表示現(xiàn)在正在進行的被動動作。（2）少數(shù)及物動詞的進行時表示按計劃、安排將要承受某個動作。(3)沒有進行時的被動語態(tài)(4)表示被動結構“be

+under/

in等介詞+名詞”結構可替換進行時被動語態(tài)。2.現(xiàn)在進行時的被動語態(tài)的基本用法deern.鹿(pl.deer)Ananimalwithlonglegs,thateatsgrass,leaves,etc.andcanrunfast.Therearemanytypesofdeer.Examplesentences：Ifwearehunted,manydeerwillbehurteachday.Huntsmenchasedthedeersilently.Newwordsadeerpark

鹿苑aherdofdeer一群鹿kangaroon.袋鼠(pl.-oos)AlargeAustraliananimalwithastrongtailandbacklegs,thatmovesbyjumping.Thefemalecarriesitsyounginapocketofskin(calledapouch)onthefrontofitsbody.Examplesentences：Kidslovestufflikeexploringcavesorkangarooparks.Kangarooattacksarerelativelyrare.Newwordsreducevt.減少Tomakesthlessorsmallerinsize,quantity,price,etc.Examplesentences：Oilisputinmachinerytoreducethefriction.Reducewhatyouneedtodo.Newwordsreducewaste減少浪費,減少廢棄物reduceexpenditure減少開支dueadj.dueto

adv.由于；因為Examplesentences：Wedigahole,whichisnoteasy,duetoroots.Thatwasmadeintoanofficeduetoitssmallsize.Newwo