Unit13SectionA1a-2c课件-人教版九年级英语全册

Unit13We’retryingtosavetheearth.SectionA1a-2cWatchandsay1.What’sthebiggestprobleminourlives2.Whatispollution3.Whatkindsofpollutiondoesthevideoshow4.Whatotherkindsofpollutiondoyouknow5.WhatcausedtheseproblemsPollution.Theearthisbadly/seriously/terriblypolluted.Pollutionisanythingthatmakestheearth_________and____.unhealthydirtyLookatthepictureandsaythetypeofpollution.airpollutionwaterpollutionwaste/landpollutionnoisepollutionSeriousPollutionHerearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.Pre-listening1aloudmusic,planes,buildinghouses,mobilephonescars,factories,smoking,buildinghousesrubbish,littering,ships,factorieslitterv.

乱扔n.

垃圾；废弃物HowmanykindsofpollutiondothesepicturesshowPre-listeningTonyMarkTonyandMarkaretalkingaboutpollution.Lookatthepicturesandanswerthequestions.1.WhatkindofpollutionareTonyandMarktalkingabout2.Whatcausedtheproblem3.HowshouldtheproblembesolvedWaterpollution.Theriverisdirty,it’sfullofrubbish.Peoplethrowlitterintotheriver.Factoriesputwasteintotheriver.Closedownthefactories.Whilelistening1bListenandcompletethesentences.reallydirtyrubbishfishlitterwastegovernmentclosedowncleanup△bottomn.

底部，最下部Thepolicefoundabodyatthebottomofthelake.Listenandread.P147Tony:Hey,Mark,maybewecouldgoswimmingintheriverlaterthisafternoon.Mark:Idon’tthinkIwanttogo,Tony.Tony:WhynotMark:Iwastherelastweekendandtheriverwasreallydirty.Eventhebottomoftheriverwasfullofrubbish,andtherewerenomorefishforfishermentocatch.Tony:Noway!Itusedtobesoclean.Infact,ithasalwaysbeenthenicestriverinthistown.下午晚些时候nomore+可数复数、不可数Mark:

Notanymore.Ithinkpeoplearethrowinglitterintotheriver.Factoriesarealsoputtingwasteintotheriver.Tony:

That’sterrible!Weshouldwritetothegovernment.Theyshouldclosedownthefactories.Mark:

Goodidea!ButIthinkeveryoneinthistownshouldhelptocleanuptheriver,too.Everyoneshouldplayapart,notjustthegovernment.参与；扮演角色；起作用关闭playapartindoingsth.“参与做某事;在做某事上起作用”。Afterlistening1cRole-playtheconversation.Thenmakeyourownconversationsaboutthekindsofpollutionin1a.Mark:Theriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.Tony:Butitusedtobesoclean!Mark:Yes,butpeoplearelitteringintheriver.Tony:Everyoneinthistownshould

playapartincleaningitup!problemcausesolutionWhilelisteningAninterviewistalkingabouttoJasonandSusanaboutenvironmentalproblems.Listentotheinterview.CirclethekindsofpollutionthatJasonandSusantalkabout.2aSusanJasonA.landpollutionB.airpollutionC.noisepollutionD.waterpollutionWhilelistening2bListenagainandcompletethesentences.1.Theairisbadlypollutedbecausethereare__________ontheroadthesedays.2.Factoriesthatburncoal

also________theairwithalotofblacksmoke.3.Thereisalsotoomuchrubbishandwaste.People___________________thingseveryday.4.Peoplearealsolitteringin____________likeparks.Thisisturningbeautifulplacesintouglyones.morecarspollutearethrowingawaypublicplacesListenandread.P147Interviewer:Todaywe’retalkingtoJasonandSusanaboutenvironmentalproblems.JasonandSusan,canyoutellusaboutsomeoftheproblemsyou’veseenJason:Ithinkoneproblemisthattheairisbadlypolluted.Ihardlyeverseeblueskiesanymore.Susan:Yes,andIusedtoseethestarsclearly.Interviewer:WhatdoyouthinkhascausedthisproblemSusan:Well,therearemorecarsontheroadthesedays.Jason:Andfactoriesthatburncoalalsopollutetheairwithalotofblacksmoke.Interviewer:WhatotherproblemsdoyouseeSusan:Iguessthere’stoomuchrubbishandwasteinthestreets.Jason:Yes!Everydaypeoplearethrowingawaythingslikewoodenchopsticks,plasticbowlsandplasticbags.Susan:They’realsolitteringinpublicplaces,forexample,duringpicnicsinparks.Thisisturningbeautifulplacesintouglyones.Interviewer:

You’reright.Theseareseriousproblemsforourenvironment.Next,let’stalkaboutthethingswecandotohelp.Usetheinformationin2aand2btorole-playconversationsbetweenJasonandSusan.Theairhasbecomereallypollutedaroundhere.I’mgettingveryworried.Yes,Iusedtobeabletoseestarsinthesky.Theproblemisthat...2cRead

2dandfillinthechart.PollutionWaystosolvetheproblemAirpollutionWastepollutionTakethebusorsubwayinsteadofdriving,orrideabike.BringabagtogoshoppingNevertakewoodenchopsticksorplasticforkswhenwebuytakeawayfoodThrowrubbishinthebinsandkeeppublicplacescleanandbeautifulforeveryoneWhataretheadvantagesofridingabikeItcancutdownairpollution;it’sgoodforhealthanditdoesn’tcostanything.Interviewer:JasonandSusan,whatareyourideasforsolvingtheseproblemsJason:Well,tocutdownairpollution,weshouldtakethebusorsubwayinsteadofdriving.Susan:Yeah,orrideabike.Thereareotheradvantagesofbikeriding.It’sgoodforhealthanditdoesn’tcostanything!Interviewer:Greatideas!WhataboutwastepollutionSusan:Mmm,Ithinksimplethingslikebringingabagtogoshoppingcanhelp.Istarteddoingthatayearago.Jason:Me,too.Also,InevertakewoodenchopsticksorplasticforkswhenIbuytakeawayfood.Iusetheonesathome.Susan:Andremembertothrowrubbishinthebinsandkeeppublicplacescleanandbeautifulforeveryone.Interviewer:Sotogether,ouractio