Unit13litterbottomfishermancoaluglyadvantagecostwoodenplastictakeawaybinv.乱扔n.底部;最下部n.渔民;钓鱼的人n.煤;煤块adj.丑陋的;难看的n.优点;有利条件v.花费adj.木制的;木头的n.塑料;塑胶n.外卖食物n.垃圾桶WordsReviewLanguageGoalTalkaboutpollutionandenvironmentalprotectionObjectivesTotalkaboutairpollution,waterpollutionandsoundpollution.Tothinkaboutwaysofprotectingtheenvironment.Tolearnthenewwords:SavetheEarth!coalplasticuglywoodenbottomfishermanbincosttakeawayadvantagelitterEndangeredanimalsDesertificationNaturaldisastersPollutionTheworld'sproblemsUnit13Wearetryingtosavetheearth.SectionA1a-2dHowdoyoufeel?hingwecandoforourworld.?trytousethepublictransportationrecyclebooksandpaperturnoffthelightwhenyouleavearoomturnofftheshowerwhileyouarewashingyourhair