Unit2WildlifeProtectionDiscoveringusefulstructures课件-高中英语人教版20193

Unit2WildlifeProtectionThePresentContinuousPassiveVoiceDiscoveringUsefulStructureTeachingObjectivesAfterthelesson,wewillbeableto1.learnaboutthedefinitiontherulesandthebasicstructuresofThePresentContinuousPassiveVoice;2.masterthebasicusageofit;3.useittomakeaspeechpresentation.ThePresentContinuousPassiveVoice现在进行时被动语态21结构：am/is/are+

doing1.

Wearedoingmanythingstoprotecttheanimals.3.

WeareseeingtheTibetanantelopesnextweek.2.

WeareobservingtheTibetanantelopesthesedays.

一、ThePresentContinuousTense

现在进行时此时此刻正在进行的动作表示现阶段在做的动作表示即将发生的动作Activity1:Warming-upLet’sreview!结构：be+done英语动词有两种语态：

主动语态

(theactivevoice)

被动语态(thepassivevoice)

二、ThePassiveVoice

被动语态A.主动语态表示主语是动作的执行者。Weplantedthetree.B.

被动语态表示主语是动作的承受者。

Thetreewasplantedbyus.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()SomeoneishuntingAfricanelephant.bysomeone.Africanelephantisbeinghunted主语谓语宾语宾语主语

谓语变被动（时态不变）

be+being+done+by2.主动语态变被动语态的原则“三变”原句主语

by

短语宾语

主语谓语由主动被动“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2.主动语态变被动语态的原则（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3.结构

(1)肯定形式：主语

+

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

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

＋

主语

＋

being

＋

done？AmIbeingwatchedover?(4)特殊疑问句形式：特殊疑问词

+

be(am/is/are)

+

主语

+

being

+

done？3.基本结构When

isthewallbeingpainted

?【即时演练1】——句型转换Theyarebuildingamodernschoolinhishometown．①Amodernschool__________________inhishometown.(改为被动语态)②Amodernschool__________________inhishometown.(把句①改为否定句)③___________________________inhishometown？(把句①改为一般疑问句)④_________________________________(对句①就inhishometown进行提问)Whereisamodernschoolbeingbuilt？Isamodernschoolbeingbuiltisn’tbeingbuiltisbeingbuilt1.Maryisbeinginterviewed

now.2.Look!Thebabyisbeingtakencareof

byheraunt.3.Thediseaseisbeingstudied

atpresentbyscientist.4.基本用法：①

表示说话时正在进行的被动动作，句中常有now,rightnow,atthemoment,atpresent

等时间状语。三、现在进行时被动语态②

表示现阶段正在进行的被动动作。(说话时不一定在进行)Theproblemoffoodsafetyisbeingstudied

byscientistsatpresent.③表示一种经常性的被动行为,常与always,constantly,frequently

等词连用,往往带有赞扬、羡慕、埋怨、讨厌等感情色彩。Childrenofourneighborsare

always

beingpraised

byourparents.④

与某些情态动词连用，表示对正在发生的动作的推测。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表示现在、现阶段的词/短语有：now;atpresent(目前);thesedays(这些天来);recently(最近);atthismoment(此时此刻)…isbeingusedActivity4:SpeechPresentation:SupposethattheXiushuigovernmentislookingforastudenttoworkasanimageambassador(形象大使)ofwildlifeconservation(保护).Pleasedeliveraspeechtoraisepeople’sawareness(意识)ofwildlifeprotection.

BasicinformationsandshoesCurrentsituation（现状）Protectivemeasures(措施)：alsonamedChinesetigerfirst-class(一级)protectiveanimaloneofthemostendangeredspeciesonly20surviveinthewild.environment;destroy;humanactivitieshabitat;damage;peoplefood；reduce;people

naturalreserve(自然保护区);setup；governmenttigerproductstrading;ban(禁止);lawSouthChinaTiger华南虎BasicinformationsandshoesCurrentsituation（现状）Protectivemeasures(措施)：mainlyliveinhighmountainsinTibetTheprideofHOLXiL(可可西里的骄傲)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.定义:现在进行时被动语态表示“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。2.主动语态变被动语态的原则“三变”:

原句主语by

短语;宾语主语;谓语由主动被动3.基本结构:(1)肯定形式：主语

+

be(am/is/are)＋being＋done

(2)否定形式：主语

+be(am/is/are)＋not＋being＋done

(3)一般疑问形式：be(Am/Is/Are)

＋

主语

＋

being

＋

done？(4)特殊疑问句形式：特殊疑问词

+

be(am/is/are)

+

主语

+

being

+

4.基本用法：

①

表示说话时正在进行的被动动作，句中常有now,rightnow,atthemoment,atpresent

等时间状语。

②

表示现阶段正在进行的被动动作。(说话时不一定在进行)

③表示一种经常性的被动行为,常与always,constantly,frequently

等词连用,往往带有赞扬、