初中三年级英语下册第一课时课件Unit13SectionA1a-1c

Period11a-1c

Unit13We’retryingtosavetheearth.SectionAObjectives目标Totalkaboutairpollution,waterpollutionandsoundpollution.Tothinkaboutwaysofprotectingtheenvironment.Tolearnthenewwords:litter,bottom,fishermenLookatourearth!Theearthispolluted.Factoriesburncoal(煤).They

pourdangerousgas(气体)

intotheair.airpollutionCarsalsopourdangerousgasintotheair.smokingSomepeoplesmokeinpublicplaces.buildinghousesplayloudmusicnoisepollutionFactoriesputwasteintotheriver.waterpollutionPeoplethrowlitterintotheriver.Thebottomofthetheriverisfullofrubbish.

litterrubbish垃圾seriouspollutionWeareharmingourplanetinmanyways.伤害airpollutionnoisepollutionwaterpollutionHelpsavetheearth

Wemustthinkofwaystoprotecttheearth.Whatshouldwedoafterdrinkingacan(罐)ofcola?We

shouldn’tthrowawaycans.We

shouldrecycle(回收利用)cans.That’sgoodfortheearth.Youshouldn’tthrowoldnewspapersaway.

Youshouldrecycleoldnewspapers.Inthatwayyoucansavepaper.

Therearealotofoldnewspapersatyourhome.Whatshouldyoudo?Youshouldn’tuse

plastic

bags.Youshoulduseyourownbag.

That’sgoodfortheearth.What

shouldyou

dowhenyougoshopping?Whenyouwriteonapieceofpaper,whatshouldyoudo?Youshouldn’twriteononesideonly.Youshouldwriteonbothsides.closedownthefactories;helptocleanuptheriver;

takethebusorsubway;rideabike;bringabagtogoshopping,throwrubbishinthecans;

turnoffthelightswhenyouleavetheclassroomrecyclebooksandpaper;turnofftheshowerwhenyouwashyourhairsolutions1aHerearesomewordsrelatedtodifferentkindsofpollution.Writethemintheboxbelow.Thenaddmorewords.noisepollution________________________________________________airpollution____________________________________________waterpollution________________________________________________loudmusicplanesmobilephonesfactoriescarssmokingshipsfactorieslitteringrubbishplanesbuildinghousesloudmusiccarsrubbishplaneslittering废弃物shipsfactoriessmokingbuildinghousesmobilephones1bListenandcompletethesentences.Whatwastheproblem?Theriverwas_____________.Eventhebottom(底部)oftheriverwasfullof_________.Therewerenomore______forfishermen(渔民)tocatch.reallydirtyrubbishfishWhatcausedtheproblem?Peoplearethrowing_______intotheriver.Factoriesareputting______intotheriver.Howshouldtheproblembesolved?Weshouldwritetothe____________andaskthemto___________thefactories.Everyoneshouldhelpto__________theriver.litterwastegovernmentclosedowncleanupListenagainandcheck(√)thesentencesyouhear.1.Wecouldgofishingintheriver.2.Theriverwasreallydirty.3.Theriverhasalwaysbeenthenicestriverinthistown.4.Weshouldasktheteachersforhelp.√√1cRole-playtheconversationTheriverwasdirty.Eventhebottomoftheriverwasfullofrubbish.Butitusedtobesoclean!Yes,butpeoplearethrowinglitterintotheriver.Everyoneinthistownshouldplayapartincleaningitup!PracticeMakeconversationsusingthepollutionin1a.Theriverhasalwaysbeenthenicestriverinthistown.Yes,itusedtobesoclean.Whatcausedtheproblem?ButIwastherelastweekendandtheriverwasreallydirty.Factoriesarealsoputtingwasteintotheriver.Peoplearethrowinglitterintotheriver.Whatshouldwedo?Yes,everyoneinthistownshouldplayapart.Weshouldwritetothegovernmentandaskthemtoclosedownthefactories.Whatelsecanwedo?Everyoneshouldhelptocleanuptheriver.1.We’retryingtosavetheearth!

我们正在竭尽全力拯救地球!

trytodo=tryone’sbesttodo

努力去做某事。

e.g.Everystudentshouldtrytostudy

hardinordertogetgoodgrades.Languagepoints2.Herearesomewordsrelatedtodifferentkindsofpollution.berelatedto与…有关

e.g.

Iamnot

related

to

himinanyway.

我和他无任何关系。

3.Everyoneinthistownshouldplayapart

incleaningitup!

playapartin参与，在……中起作用

e.g.Computersplayanimportantpartinourdailylife.Everyoneshouldplayapartinsavingtheearth.4.Eventhebottomoftheriverwasfullofrubbish.Yes,butpeoplearethrowinglitterintotheriver.litter和