Unit2WildlifeProtectionDiscoveringusefulstructures課件-高中英語人教版20193

Unit2WildlifeProtectionThePresentContinuousPassiveVoiceDiscoveringUsefulStructureTeachingObjectivesAfterthelesson,wewillbeableto1.learnaboutthedefinitiontherulesandthebasicstructuresofThePresentContinuousPassiveVoice;2.masterthebasicusageofit;3.useittomakeaspeechpresentation.ThePresentContinuousPassiveVoice現(xiàn)在進行時被動語態(tài)21結(jié)構(gòu)：am/is/are+

doing1.

Wearedoingmanythingstoprotecttheanimals.3.

WeareseeingtheTibetanantelopesnextweek.2.

WeareobservingtheTibetanantelopesthesedays.

一、ThePresentContinuousTense

現(xiàn)在進行時此時此刻正在進行的動作表示現(xiàn)階段在做的動作表示即將發(fā)生的動作Activity1:Warming-upLet’sreview!結(jié)構(gòu)：be+done英語動詞有兩種語態(tài)：

主動語態(tài)

(theactivevoice)

被動語態(tài)(thepassivevoice)

二、ThePassiveVoice

被動語態(tài)A.主動語態(tài)表示主語是動作的執(zhí)行者。Weplantedthetree.B.

被動語態(tài)表示主語是動作的承受者。

Thetreewasplantedbyus.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。一、ThePresentContinuousPassiveVoice

現(xiàn)在進行時被動語態(tài)Theyarebeinghunted,illegally,fortheirvaluablefur.Peoplearehuntingthem,illegally,fortheirvaluablefur.Activity2:Focusontheform()SomeoneishuntingAfricanelephant.bysomeone.Africanelephantisbeinghunted主語謂語賓語賓語主語

謂語變被動（時態(tài)不變）

be+being+done+by2.主動語態(tài)變被動語態(tài)的原則“三變”原句主語

by

短語賓語

主語謂語由主動被動“三不變”原句意思不變原句時態(tài)不變原句主謂賓以外成分不變2.主動語態(tài)變被動語態(tài)的原則（時態(tài)和語態(tài)結(jié)合，先體現(xiàn)時態(tài)，后體現(xiàn)語態(tài)）現(xiàn)在進行時：am/is/are+V-ing被動語態(tài)：

be+done(V過去分詞)現(xiàn)在進行時的被動語態(tài)：主語+

am/is/are+being+done+(by…)表進行表被動二、現(xiàn)在進行時被動語態(tài)3.結(jié)構(gòu)

(1)肯定形式：主語

+

be(am/is/are)＋being＋doneThehouseisbeingpainted.(2)否定形式：主語

+be(am/is/are)＋not＋being＋doneThetreesarenotbeingwatered.(3)一般疑問形式：be(Am/Is/Are)

＋

主語

＋

being

＋

done？AmIbeingwatchedover?(4)特殊疑問句形式：特殊疑問詞

+

be(am/is/are)

+

主語

+

being

+

done？3.基本結(jié)構(gòu)When

isthewallbeingpainted

?【即時演練1】——句型轉(zhuǎn)換Theyarebuildingamodernschoolinhishometown．①Amodernschool__________________inhishometown.(改為被動語態(tài))②Amodernschool__________________inhishometown.(把句①改為否定句)③___________________________inhishometown？(把句①改為一般疑問句)④_________________________________(對句①就inhishometown進行提問)Whereisamodernschoolbeingbuilt？Isamodernschoolbeingbuiltisn’tbeingbuiltisbeingbuilt1.Maryisbeinginterviewed

now.2.Look!Thebabyisbeingtakencareof

byheraunt.3.Thediseaseisbeingstudied

atpresentbyscientist.4.基本用法：①

表示說話時正在進行的被動動作，句中常有now,rightnow,atthemoment,atpresent

等時間狀語。三、現(xiàn)在進行時被動語態(tài)②

表示現(xiàn)階段正在進行的被動動作。(說話時不一定在進行)Theproblemoffoodsafetyisbeingstudied

byscientistsatpresent.③表示一種經(jīng)常性的被動行為,常與always,constantly,frequently

等詞連用,往往帶有贊揚、羨慕、埋怨、討厭等感情色彩。Childrenofourneighborsare

always

beingpraised

byourparents.④

與某些情態(tài)動詞連用，表示對正在發(fā)生的動作的推測。Asaresultofstayinguplatetalkinglastnight,Jimmymaybebeingscoldedbyhisheadteacher.Activity3:Focusontheuse

Let’swatchashortvideoandanswer:Whathappenedto

theanimals?Fromthevideowecansee:Humanbeingskillwildanimals.Wildanimals

byhumanbeings.Atpresent,humanracearedestroyingtheenvironment.Atpresent,the

environment

byhumanrace.isbeingdestroyedarekilledBesides,humanbeingsarecuttingdown

treesforhousebuilding.Trees

byhumanbeingsforhousebuilding.arebeingcutdownNowadays,somefactories

arepolluting

theriver.Nowadays,theriver

bysomefactories.Asaresult,animalsarelosingtheirhabitats.isbeingpollutedNow,wildanimals

(kill)bypeople,andalsotheirfur

(use)tomakeclothesforhumans.arebeingkilled表示現(xiàn)在、現(xiàn)階段的詞/短語有：now;atpresent(目前);thesedays(這些天來);recently(最近);atthismoment(此時此刻)…isbeingusedActivity4:SpeechPresentation:SupposethattheXiushuigovernmentislookingforastudenttoworkasanimageambassador(形象大使)ofwildlifeconservation(保護).Pleasedeliveraspeechtoraisepeople’sawareness(意識)ofwildlifeprotection.

BasicinformationsandshoesCurrentsituation（現(xiàn)狀）Protectivemeasures(措施)：alsonamedChinesetigerfirst-class(一級)protectiveanimaloneofthemostendangeredspeciesonly20surviveinthewild.environment;destroy;humanactivitieshabitat;damage;peoplefood；reduce;people

naturalreserve(自然保護區(qū));setup；governmenttigerproductstrading;ban(禁止);lawSouthChinaTiger華南虎BasicinformationsandshoesCurrentsituation（現(xiàn)狀）Protectivemeasures(措施)：mainlyliveinhighmountainsinTibetTheprideofHOLXiL(可可西里的驕傲)havelivedontheearthfortensofmillionsofyearseveryyearover20000antelopes;hunt;huntersTheirfur;use;tomakeclothesTheirskin；cut;tomakebags1)protectionorganization;establish；society2)illegalhunting;punish;governmentTibetanAntelope藏羚羊

Goodafternooneveryone.Mynameisxxx,andIamfrom

groupxx.Iamheretogiveaspeechabout..xx..+(Basicinformation).Nowadays,somethingbadarebeingdonetothem.Forexample,Firstly,

.Besides,

.What’sworse

.However,Muchisbeingdonetoprotecttheanimal.Firstofall,.What’smore

.Allinall,Ihopetheanimalcanbewellprotected.Practiceinyourgroup,thensharetotheclassActivity5:Summary1.定義:現(xiàn)在進行時被動語態(tài)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.主動語態(tài)變被動語態(tài)的原則“三變”:

原句主語by

短語;賓語主語;謂語由主動被動3.基本結(jié)構(gòu):(1)肯定形式：主語

+

be(am/is/are)＋being＋done

(2)否定形式：主語

+be(am/is/are)＋not＋being＋done

(3)一般疑問形式：be(Am/Is/Are)

＋

主語

＋

being

＋

done？(4)特殊疑問句形式：特殊疑問詞

+

be(am/is/are)

+

主語

+

being

+

4.基本用法：

①

表示說話時正在進行的被動動作，句中常有now,rightnow,atthemoment,atpresent

等時間狀語。

②

表示現(xiàn)階段正在進行的被動動作。(說話時不一定在進行)

③表示一種經(jīng)常性的被動行為,常與always,constantly,frequently

等詞連用,往往帶有贊揚、