英语人教版九年级全册Unit 13 Section A 3a-3b.ppt

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1、Unit13SectionA23a-3bTheearthisbadlypolluted.Whatshouldwedotosavetheearth?Let’stakeaction(采取行动)Turnoffthelightswhenyouleavearoom.Recyclebooksandpaper.Takebusesinsteadofdrivingcars.Therearesomeanimalsareendangered.Weshoulddosomethingtoprotecttheanimalsandtheenvironment!Sa

2、vetheearth!Savetheanimals!Thezoosprovidehomesformanyendangeredanimals.1.Whatdoyouknowaboutsharks(鲨鱼)?2.Doyouthinksharkscanbeendangered?Why?3.Whatdoyouthinkmightcauseafallinthenumberofsharks?WheresharkfinsoupispopularNumberofsharkscaughtandtradedeveryyearthenumbersofsome

3、kindsofsharkshavefalleninthelast20to30yearsTwoenvironmentalgroupswhichareagainst“finning”southernChina70millionover90percentWildAidandtheWWF3aReadthepassageaboutsharksandcompletethefactsheetbelow.3bReadthepassageagainandfillintheblankswiththewordsinthebox.soalthoughifbu

4、twhenManypeopledonotrealizetheyarekillingawholeshark______theyenjoyabowlofsharkfinsoup.2.Sharksareatthetopofthefoodchain,____iftheirnumbersdrop,theocean’secosystemwillbeindanger.whenso3.Manythinkthatsharksaretoostrongtobeendangered,_____theyarewrong.4._________therearen

5、oscientificstudiestosupportthis,alotofpeoplebelievethatsharkfinsaregoodforhealth.5.Sharksmaydisappearoneday___wedonotdosomethingtostopthesaleofsharkfins.butAlthoughifadj.科学上的，科学的Retellthepassageaccordingtothewordsbelow.sharkfinsoupinsouthernChinaeachtimecutoffnolongerno

6、tonly…butalso…atthetopdropbeendangeredthestrongestaround70millionfallenbyover90percentWildAidandtheWWFdeveloplawsscientificstudies1.Asharkcannolongerswimandslowlydies.鲨鱼不能再游泳然后慢慢死掉。nolonger意思是“不再”,通常位于实义动词之前，助动词、情态动词或系动词之后。相当于not…anylonger/not…anymore。e.g.Wearenolongers

7、tudents.=Wearen’tstudentsanylonger.2.Thismethodisnotonlycruel,butalsoharmfultotheenvironment.这种方法不但残忍而且对环境有害。1)notonly…butalso…用于连接两个表示并列关系的成分，着重强调后者，其意为“不仅……而且……”;其中的also有时可以省略。e.g.Shenotonlyplayswell,butalsowritesmusic.她不但很会演奏，而且还会作曲。Notonlydoesmysistersingwell,butshe

8、danceswell.我姐姐不但歌唱得好，而且舞也跳得好。Notonlythestudentsbutalsotheteacherisworkinghard.不仅学生们在努力，而且那位老师也在努力。当notonly置于句首