2022-2023学年英语仁爱版九年级上册-Unit-2 (1)

Unit2.3Whatdotheymean?Howdodifferentkindsofpollutionaffecttheenvironment?Whatshouldwedotoimproveourenvironment?Therearemorethingswecandotoprotecttheenvironment.….并列句连词or,and,but和while的用法①表示并列关系，用and(和,并且/而且…)②表转折，用but(但是),while(然而;当…时，前后形成鲜明对比)③表选择，用or(或者;否则)Youcannodorshakethehead!Younodyourheadanditmeansagreement,but/whileshakingtheheadmeansdisagreement.Combinethesentenceswithor,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Youshould/oughtto…shutofftheelectricityn.电，电能关闭e.g.Youshould/oughttoshutofftheelectricitywhenyouleavearoom.Youshould/oughttorideabiketoyourschool.Youshould/oughttotakeabustoschoolinsteadoftakingataxi.Actionsspeaklouderthanwords.RemembersomeEnglishidiomsandtrytousethemoften.Easiersaidthandone.说起来容易做起来难。行动胜于言辞。•Wouldyouliketobeatreeplanterwhenyouareolder?Whyorwhynot?Howcanwebecomeagreenerperson?•Turnoffthelightswhenweleavearoom.•Walkorrideabikeinsteadoftakingabusorataxi.•Takeaclothbagwhenwegoshopping.•Don’tdriveacarifyoutravelashortdistance.•Writeonbothsidesofthepaper.•Don’tusethethingsthatcanbeusedonlyonce.•Afterwewashfaces,wecanusethewatertowashclothes.•TurnofftheTVsetwhileweareaway.•…ShowyourselfWriteashortpassageaccordingtothequestionsyouansweredjustnow,youcanwritelikethis:Environmentisveryimportanttous,weshoulddoeverythingwecantoprotectit.Forme,Ioften/seldomrecyclenewspapersandcans……SoIampalegreen/mediumgreen/brightgreen.Ishouldtryharder/notstoptrying.Discussingroupsabouttheuse,advantagesanddisadvantagesoftherenewableenergy.Thesun,wind,wavesandheatfromdeepintheearthareenergysources.Theywillneverrunoutsotheyarecalledrenewablesources.In2011,about16%ofenergyusedworldwidecamefromrenewablesources.Theuseofitisincreasingrapidlyeachyear.DiscussionYoucanwritelikethis!•Sunlightcanproducealotofenergy.Wecanuseittowarmthehouseinthewinter,toheatthewaterforbaths,andtoproduceelectricity.What’smore,wecanevenuseittorunvehiclesdirectlyinthenearfuture.•Asisknowntous,theenergyfromthesunlighthasalotofadvantages.Forexample,itisclean,renewableandnon-polluting.Besides,itdoesnoharmtoournature.Sowe’dbetteruseitasmuchaspossible.Example:Welearn:1.Somewords:dry,remove,replace…2.Somephrases:removesth.fromsth.;facedifficulties;eventhough3.Somesentences:(1)Withoutthem,itcannotbreathe.(2)Theyplantdifferenttypesoftreessothatbirdsandanimalscanliveintheforests.Wecan:1.Usethecompoundsentencecorrectly.SummaryHomework•Workbook:Unit2Topic3SectionA•Exercisebook:Writeashortpassageaboutprotectingtheenvironment.(theimportance,whatshouldbedone,howtodoit,etc.)•Optionalwork:Collectmorethingsandsortthembasedon3a..