九年级英语上册(外研版-课件)：M12U1

Unit1Ifeveryonestartstodosomething,theworldwillbesaved.Pollutionisourgreatenemy,andwehavetofightit.Let’slookatthefollowingpicturesandtalkaboutthem.Wecanseeaverydirtyriver.Thereislotsofrubbish.Thefishhasbeendeadbecauseofthewaterpollution.Whatcanyousee?Whatcanyousee?Wecanseethatrubbishisbeingburnt.Thesmokegoesintotheair.Itiscausingairpollution.Whatcanyousee?Wecanseesomewastepaper.Itcanberecycled.Ifeveryonestartstodosomething,theworldwillbesaved.Fromthethreepictures,welearnthattheenvironmentalproblemisserious.Itisourdutytoprotecttheenvironment.Andweshouldsaveenergy.Weshouldtrytoreuseeverythingthatisreusable.Orourworldwillbehopeless.ReviewReadthewordsandexpressionsloudly.factorypolluterecyclewasteenemycropn.制造厂；工厂v.污染v.回收利用；再使用(废品)n.废料；废弃物n.敌人；仇人n.庄稼；作物newwordsnewwordskilloillesshopelessv.杀死；弄死n.石油adj.较小的；较少的n.较少数；较少量adj.无望的next请同学们在课后参照《巴蜀英才•英语》P95的内容进行复习。1.pollutev.为及物动词。Theairwaspollutedbyfactorysmoke.空气被工厂排出的烟污染了。【词汇链接】pollutionn.污染（不可数）；pollutedadj.被污染的（可作表语或定语）Thelocalpeoplehadtomoveawaybecauseoftheseriouspollution.因为污染严重，当地人不得不搬离。Itisveryharmfultobreatheinsuchpollutedair.吸入这种污染的空气是十分有害的。back2.recyclev.回收利用；再使用（废品）Weshouldtrytorecycleallourwastepaper.我们应该把所有废纸回收再利用。请同学们在课后参照《巴蜀英才•英语》P95的内容进行复习。【构词】re是表示“重复，又”的前缀。类似构成的单词还有reuse(重新使用）；rewrite（重写）；rebuild（重建）等。back【词汇链接】recyclableadj.环使用的请同学们在课后参照《巴蜀英才•英语》P95的内容进行复习。3.wasten.waste指失去原使用价值的、陈旧、破损了的物品、垃圾，是不可数名词；但表示不同种类的废弃物时可用复数形Manyriverswerepollutedbythewasteofthefactory.许多河流都被工厂里的废水给污染了。【拓展】①waste用作名词时还可意为“浪费”，常用短语：beawasteoftime/money浪费时间/金钱；②waste用作形容词，意为“废弃的；无用的”；③用作动词，意为“浪费”，固定短语：waste…indoingsth.意为“浪费……做某事”。back请同学们在课后参照《巴蜀英才•英语》P95的内容进行复习。4.killv.kill的主语既可以是人，也可以是动物或任何无生命的事物，如战争、灾害等。Hiswifewaskilledinacaraccident.他的妻子在车祸中丧生。back请同学们在课后参照《巴蜀英才•英语》P96的内容进行复习。5.hopelessadj.无望的【构词】hopeless是由hope加-less构成的。类似构成的词还有：harmless(无害的）；useless（无用的）；careless（粗心的）；endless（无止境的）等。Theyfeelhopelessabouttheirfuture.他们感到前途渺茫。【反义词】hopefuladj.有希望的；给人以希望的back请同学们在课后参照《巴蜀英才•英语》P96的内容进行复习。6.lessadj.较少的；较小的less是little的比较级，多用来【相关短语】nolessthan“不少于”；lessthan“少于；不到”；lessandless“越来越少”；moreorless“Pleaseputlesssugarinthecoffeenexttime.下次请往咖啡里少放点糖。back1.Workinpairs.Lookatthepicturesandtalkaboutthem.Usethewordsintheboxtohelpyou.factorypolluterecyclewasteAirhasbeenpollutedbecausefactoriesproduceelectricityandenergyforhumanbeingeveryday.Alargenumbersofmetalcansarethrownawayeverywhere.Wewasteagreatdealofmetal.2.Listenandcompletethesentences.1.Thefactoryiscausingalotof_________.2.Thereshouldbesome________tostoppollution.3.Wecan_________wasteproducts,suchas_______andpaperinarecyclingcentre.pollutionrulesrecycleglassEverydayEnglish•It’snouse...•Suchas...•Niceidea!3.Listenandread.Lingling:Afterourlessonontheenvironment,I’mworriedaboutthefuture.Pollutionisourgreatenemy,andwehavetofightit.Iftheriversarepolluted,farmerscan’tusewaterfortheircrops.Tony:Andinsomeplaces,pollutionfromfactoriesspreadsovercitiesandvillages.itmakespeopleill,andmayevenkillsthem.Pollutionisadangertoourhealth.Betty:Andthere’resomanycarsontheroad.Theyusesomuchoilandcausepollutionaswell.Daming:Butweareonlystudents.Wecan’tdoanythingaboutfactoriesandcars.Betty:It’snousetalkingaboutthingswecan’tdo.We’vegottothinkofthingswecando!Daming:Suchas…?Lingling:Doyouthinkwecanmakeourschoolagreenschool?Daming:What’sagreenschool?Lingling:Atagreenschool,everyclasscollectswasteorrubbishwhichcanberecycledorusedagain.Thentheschoolsellsthewasteandusesthemoneytohelpstudentsinpoorareas.Daming:Niceidea!Betty:Studentsatagreenschoolalsolearnwaystosaveenergyandrecycleathome.Thatmeanslesswaste.Tony:That’sagoodidea.Thoughpollutionisheavynow,Idon’tthinkit’shopeless.Ifeveryonestartstodosomething,theworldwillbesaved.Nowcompletethenotes.Problems1.Iftheriversarepolluted,________________________________________.2.Insomeplaces,pollutionfromfactories________________________________.3.Thecarsontheroad____________________________________________.usewaterfortheircropsfarmerscan’tspreadsovercitiesandvillagesandcausepollutionaswellusesomuchoilWhatthestudentscando?4.Supportagreenschool:everyclass______________________whichcanbe______________________.Thentheschool_______________tohelpstudents_____________.5.Studentslearn__________________________________.Thatmeans__________.collectswasteorrubbishrecycledorusedagainsellsthewasteinpoorareaswaystosaveenergyandrecycleathomelesswastecauseenemyfactorykilloilpollutespread5.Completethepassagewiththecorrectformofthewordsinthebox.Pollutionisourgreat(1)______.Pollutionfrom(2)_________isadangertoourhealth,andmayeven(3)____people.Factoriessometimes(4)________rivers,andfarmerscannotusethewaterfortheircrops.enemyfactorieskillpollutePollution(5)________overcitiesandvillages,andthat(6)________evenmoredanger.Carsinthestreetusealotof(7)_____andcausepollutiontoo.spreadcausesoil5.Listenandmarkthewordswhichthespeakerlinks.1.Afterourlessonontheenvironment,I’mworriedaboutthefuture.2.Studentsatagreenschoolalsolearnwaystosaveenergyandrecycleathome.Nowlistenagainandrepeat.6.Workinpairs.Listthepollutioninyourplace.Chooseoneproblemandsaywhatshoul