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学习目标Keywords&phrases:litter,bottom,fisherman,coal,ugly,costadvantage,wooden,plastic,makeadifferenceKeysentences:1.Theriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.2.Butitusedtobesoclean!3.Yes,butpeoplearethrowinglitterintotheriver.litterbottomfishermancoaluglyadvantagecostwoodenplastictakeawaybin[ˈlɪtə(r)]n.废弃物，垃圾[ˈbɒtəm]n.底部;臀部[ˈfɪʃərmən]n.渔夫[kəʊl]n.煤;煤块[ˈʌɡli]adj.丑陋的;难看的;[ədˈvæntɪdʒ]n.有利条件,优点[kɒst]v.花费n.花费，价钱[ˈwʊdn]adj.木制的;木头的;[ˈplæstɪk]adj.塑料的n.塑料外卖食物[bɪn]n.垃圾箱WordsandExpressionsBeautifulearthmanyyearsago.Theearthispolluted.airpollutionThefactoriesthatburncoalpollutetheairwithalotofblacksmoke.VehicleemissionsfireworkswaterpollutionFactoriesputwasteintotheriver.mobilephonepollution（unusfullitter）e-waste（electronic）noisepollutionpressthehornwhitepollutionWhatshouldwedo?Protectourearth.1aHerearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.loudmusiccarsrubbishplaneslitteringshipsfactoriessmokingbuildinghousesmobilephonesnoisepollution________________________________________________airpollution____________________________________________waterpollution________________________________________________loudmusicplanesmobilephonesfactoriescarssmokingshipsfactorieslitteringrubbishbuildinghousesbuildinghouses1bListenandcompletethesentences.Whatwastheproblem?Theriverwas_____________.Eventhebottom(底部)oftheriverwasfullof_________.Therewerenomore______forfishermen(渔民)tocatch.reallydirtyrubbishfishWhatcausedtheproblem?Peoplearethrowing_______intotheriver.Factoriesareputting______（废弃物）intotheriver.Howshouldtheproblembesolved?Weshouldwritetothe____________andaskthemto___________thefactories.Everyoneshouldhelpto__________theriver.litterwastegovernmentclosedowncleanup1cTheriverwasdirty.Eventhebottomoftheriverwasfullofrubbish(没用的东西(被扔或将要丢弃的无用的东西)”不可回收).Butitusedtobe（过去是）soclean!Role-playtheconversation.Yes,butpeoplearethrowinglitter(乱扔的废物(纸屑、不要的包装纸、废瓶等)”还可回收)into（把...丢进）theriver.Everyoneinthistownshouldplayapartincleaning（参与)itup!2aListentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.A.landpollutionB.airpollutionC.noisepollutionD.waterpollution2bListenagainandcompletethesentences.1.Theairisbadlypollutedbecausethereare___________ontheroadthesedays.2.Factoriesthatburncoal(烧煤）also________theairwithalotofblacksmoke.3.Thereisalsotoomuchrubbishandwaste.People_________________thingseveryday.4.Peoplearealsolittering（乱丢杂物）in______________likeparks.Thisisturningbeautifulplacesintougly(丑陋的)ones.morecarspollutearethrowingawaypublicplacesUsetheinformationin2aand2btorole-playconversationsbetweenJasonandSusan.2cTheairhasbecomereallypollutedaroundhere.I’mgettingveryworried.Yes,Iusedtobeableto(beableto能做...)seestarsinthesky.Theproblemisthat…HelpsavetheearthWemustthinkofbetterwaystotreatourplanetinfuture.Ifyoudrinkacanofcola.Whatdoyoudo?Ithrowawaycans.Irecyclecans.Youthrowawaythecans.That’sbadfortheEarth.Yourecyclethecans.That’sgoodfortheEarth.Therearealotofoldnewspapersatyourhome.Whatdoyoudo?Ithrowtheoldnewspapersaway.Irecycletheoldnewspapers.Youwastepaper.That’sbadfortheEarth.Yousavepaper.That’sgoodfortheEarth..Yougoshopping.Whatdoyoudo?Iusealotofnewplasticbags.Iusemyownbag.Youusealotofnewplasticbags.That’sbadfortheearth.Youuseyourownbag.That’sgoodfortheEarth.Whenyouwriteonapieceofpaper,whatdoyoudo?Iwriteononesideonly.Iwriteonbothsides.Youusepaperonbothsides.That’sgoodfortheEarth.Youusepaperononesideonly.That’sbadfortheEarth.1._________thelightswhenyouleavearoom.2.Takepublictransportation,suchas___________,_______________.3.Stopusing_____________or_________________4.____________booksandpaper.5.___________________________.6.____________________________.Turnoffbybusshared-bikeplasticbagsdisposabledishwareRecyclePlantmoretrees.Savethewater,don'twasteanywater.Whatshouldwedotosavetheearth?2dRead2dandcompletethechart.ProblemsSolvingproblemsairpollutionwastepollutionrubbishtakethebus,subwayorrideabikeinsteadofdriving1.bringabagtogoshopping,2.nevertakewoodenchopsticksorplasticforksthrowrubbishinthebins1.解决2.减少3.代替+ing4.好处5.cost花费,主语是物6.垃圾污染7.开始做某事，事情已经开始做了.8.外卖9.记得做某事，动作未发生10.产生影响或作用11.引领sharkfincruelharmfulbeharmfultoatthetopofchainthefoodchainecosystemindustrylawscientific[ʃɑ:rk]n.鲨鱼;坑蒙拐骗的人[fɪn]n.鱼鳍[ˈkruəl]adj.残酷的，残忍的[ˈhɑ:rmfl]adj.有害的;对...有害的在...顶部[tʃeɪn]n.链子，链条食物链[ˈi:kəʊsɪstəm]n.生态系统[ˈɪndəstri]n.工业;行业[lɔ:]n.法律法规[ˌsaɪənˈtɪfɪk]adj.科学的;科学上的WordsandExpressions2.Whatdoyouknowaboutsharks?鲨鱼需要保护，我们餐桌上香喷喷的鱼翅汤就是鲨鱼的鳍做的，一旦被割去了背鳍，鲨鱼就会因为失去平衡能力沉到海底饿死。（鱼翅的营养价值和一碗粉丝差不多，吃鱼翅毫无意义）SharkfinsoupWheresharkfinsoupispopularNumberofsharkscaughtandtradedeveryyearHowgovernmentcanhelpTwoenvironmentalgroupsagainst“finning”SouthernChina70milliondeveloplawstostopthesaleofsharkfinsWildAidandtheWWF3aReadthepassageaboutsharksandcompletethefactsheetbelow.Savethesharks!Manyhaveheardof(听说）sharkfinsoup.ThisfamousandexpensivedishisespeciallypopularinsouthernChina.Butdoyourealizethatyou'rekillingawholesharkeachtime（每次）youenjoyabowlofsharkfinsoup?Whenpeoplecatchsharks,theycutoff(割掉）theirfinsandthrowthesharksbackinto（丢回）t