Unit2Topic3SectionA1

Unit2SavingtheEarthTopic3Whatcanwedoathometoprotecttheenvironment?,SectionA,(1)Weshoulduseplasticbagsasfewaspossible.(2)Weshouldthrowthegarbageintheriver.(3)Weshouldreducethewasteweproduce.(4)Weshouldusebothsidesofpaper.(5)Weshouldthrowtheplasticbagsratherthanreusethem.,or,Whatelsecanwedoathomeandatschooltoprotecttheenvironment?,discuss,1bListento1aandcompletethetable.,organization,protecttheenvironment,spreadthemessage,reducethewaste,wastepaper,1aListen,lookandsay.,1cRead1aandcompletethesentences.,ThethreeRs-_,_and_-areimportant.Athome,wecan,forexample,useboth_ofpaperandreuse_bags.Atschool,studentsareencouragedto_wastepaperand_becauserecyclingcanprotectthe_and_money.Thenwe_them_theycanberecycled.,reduce,reuse,recycle,sides,plastic,collect,softdrinkcans,environment,save,sort,sothat,ReadthedialogKeypoints,(1)Younodyourheadanditmeansagreement.(2)Hurryup,oryoullmissthetrain.(3)Waterisimportantbutsomepeopledontsaveit.(4)Somepeopleprotectanimalswhileotherskillanimals.,Discussthewordsunderlined,并列句,并列连词or,eitherorand,but,while,so,for的用法.,表示并列关系，用and表转折，用but,while表选择，用or，eitheror表因果，用so,for,2Combinethesentenceswithor,and,butorwhile,makingsomechangesifnecessary.,1.Noiseisakindofpollution.Itsharmfultoourhearing.Noiseisakindofpollutionanditsharmfultoourhearing.2.Workhard.Youwillfailtheexam.Workhard,oryouwillfailtheexam.,3.Noddingtheheadmeansagreement.Shakingtheheadmeansdisagreement.Noddingtheheadmeansagreementwhileshakingtheheadmeansdisagreement.4.Hurryup.Youwillmissthebus.Hurryup,oryouwillmissthebus.5.Hehasfailedseveraltimes.Henevergivesup.Hehasfailedseveraltimes,buthenevergivesup.,3aReadthetableandwritethecorrectletterundereachpicture.Thensortthegarbagebasedonyourownknowledge.,papercups,glassbottles,cans,plasticbags,Newspapers,3aReadthetableandwritethecorrectletterundereachpicture.Thensortthegarbagebasedonyourownknowledge.,3bListentotheconversationandcheckyouranswersin3a.,Wow!Wevegotsomuchgarbage!Softdrinkcans,lunchboxes,plasticbottles,batteries,wastepaper,paperbagsandcups,4SupposeyouwillhaveaClean-upDay.Workingroupsandfindoutthegarbage.Thens