Unit2SavingtheEarthTopic3Whatcanwedoathometoprotecttheenvironment?SectionAWordsandExpressionsDoyouknowhowthesekindsofpollutionaffectourenvironment?Whatshouldwedotoimproveourenvironment?Whatdotheymean?Areyouagreenerperson?WhichdayistheWorldEnvironmentDay?Canyousortthegarbage?Whatcanwedoathometoprotecttheenvironment?Weshouldreducethewasteweproduce.Forexample,weshouldusebothsidesofpaperandreuseplasticbags.Listento1aagainandanswerthequestions.(1)Whoisworkingforanorganizationthatprotectstheenvironment?Jane.(2)What’shermainjob?Hermainjobistohelpspreadthemessageaboutprotectingtheenvironment.(3)Shouldweusebothsidesofpaper?Yes,weshould.(4)Whyistherecyclinguseful?Itcanprotecttheenvironment,anditcansavemoney,too.1aListen,lookandsay.1bListento1aandcompletethetable.AninterviewwithJanewhereJaneworksinan________________to______________________whatJaneisdoinghelping________________aboutprotectingtheenvironmentwhatwecandoathome________________weproducewhatstudentscandoatschoolcollect__________andsoftdrinkcansorganizationprotecttheenvironmentspreadthemessagereducethewastewastepaperKeywords1.workforanorganization2.helpspreadthemessage3.thethreeR’s---reduce,reuseandrecycle4.reducethewaste5.reuseplasticbags6.recycle7.encouragesb.todosth.8.sortRetellit1cRead1aandcompletethesentences.1.ThethreeR’s---______,______and_______---areimportant.2.Athome,wecan,forexample,useboth______ofpaperandreuse_____bags.3.Atschool,studentsareencouragedto_____wastepaperand______________becauserecyclingcanprotectthe____________and_______money.4.Thenwe_______them______theycanberecycled.reducereuserecyclesidesplasticcollectsoftdrinkcansenvironmentsavesortsothat•(1)Weshoulduseplasticbagsasfewaspossible.•(2)Weshouldthrowthegarbageintheriver.•(3)Weshouldreducethewasteweproduce.•(4)Weshouldusebothsidesofpaper.•(5)Weshouldthrowtheplasticbagsratherthanreusethem.Youcannodorshakethehead!Noddingtheheadmeansagreement.Shakingtheheadmeansdisagreement.v.点头n.同意•(1)Younodyourheadanditmeansagreement.•(2)Hurryup,oryou’llmissthetrain.•(3)Waterisimportantbutsomepeopledon’tsaveit.•(4)Somepeopleprotectanimalswhileotherskillanimals.并列句连词or,and,but和while的用法①表示并列关系，用and…②表转折，用but,while…③表选择，用or…2Combinethesentenceswithor,and,butorwhile,makingsomechangesifnecessary.•1.Noiseisakindofpollution.It’sharmfultoourhearing.Noiseisakindofpollutionandit’sharmfultoourhearing.•2.Workhard.Youwillfailtheexam.Workhard,oryouwillfailtheexam.•3.Noddingtheheadmeansagreement.Shakingtheheadmeansdisagreement.Noddingtheheadmeansagreementwhile/butshakingtheheadmeansdisagreement.•4.Hurryup.Youwillmissthebus.Hurryup,oryouwillmissthebus.•5.Hehasfailedseveraltimes.Henevergivesup.Hehasfailedseveraltimes,buthenevergivesup.放弃3aReadthetableandwritethecorrectletterundereachpicture.Thensortthegarbagebasedonyourownknowledge.papercupsglassbottlescansplasticbagsnewspapers3aReadthetableandwritethecorrectletterundereachpicture.Thensortthegarbagebasedonyourownknowledge.TypeofgarbageRecycledReusedReducedplasticbagspapercupscansnewspapersglassbottles√√√√√3bListentotheconversationandcheckyouranswersin3a.Wow!We’vegotsomuchgarbage!Softdrinkcans,lunchboxes,plasticbottles,batteries,wastepaper,paperbagsandcups,…4SupposeyouwillhaveaClean-upDay.Workingroupsandfindoutthegarbage.Thensortthembasedon3aandtalkaboutthem.A:Ithinklunchboxesshouldbereused.B:Whataboutwastepaper?A:Ithink…Welearn:1.Somewords:nod,agreement2.Somephrases：giveup3.Somesentences:(1)Weshouldreducethewasteweproduce.(2)Recyclingcanprotecttheenvironment,anditcansavemoney,too.Wecan:1.Usethecompoundsentenceswithor,and,butandwhile.2.Talkaboutenvironmentalprotection.•Read1a.•Memorizetheusefulexpressionsandkeysentenceswhichwelearntoday.•FinishSectionAinyourworkbook.•PreviewSectionB.
