九年级HF九年级Unit 13 复习课(The final section)

WatchthisMovieTrailer(电影预告片).Answerthequestion.Doyouwanttoliveontheearthlikethat?

Thesameplanetjust34yearsafter.Kindofsad,right?Weareharmingtheearthindifferentkindsofpollution.waterpollutionTheriverisreallydirty.Eventhe

oftheriverisfullofrubbish.Therearenomorefishfor

tocatch.Peoplearethrowing

intotheriver.Factoriesareputtingwasteintotheriver.Buttheriverusedtobesoclean!bottomfishermenlitter过去惯常做某事，现在则不了。现在进行时（Presentprogressive）airpollutionFactoriesthatburn

alsopollutetheairwithalotofblacksmoke.Theairisbadlypollutedbecausetherearemorecarsontheroad.Butthesky

soblue.I

abletoseestarsintheskyatnightswhenIwasachild.coal被动语态（Passivevoice）usedtobeusedtobelandpollutionWhatcausedtheproblem?Thereisalsotoomuchrubbishandwaste.Peopleare

(throw)awaythingseveryday.Peoplearealso

(litter)inpublicplaceslikeparks.Thisis

(turn)beautifulplacesintouglyones.throwinglitteringturningnoisepollutionWhatcausedtheproblem?CarsPlanesBuildinghousesMobilephonesLoudmusicReadthepassage,underlinetheModalverbsandcircletheConjunctions(连词).Task1现在完成时（Presentperfect）Moreandmorepeoplerealizedtheimportanceofprotectingtheenvironment.Thegovernmenthasalsodevelopedsometoughnewlawsonenvironment.Althoughwehaveseenmanychangesinit,therearealotofthingswecandotohelp.Peoplemay/mightthinkthatbigthingsmustbedonetosavetheearth.Butmanyforgetthatsavingtheearthbeginswithsmallthings.Sowhatarethey?Forexample,youcansaveelectricitybyturningoffthelightswhenyouleavearoom.Youcouldalsousereusablebagsinsteadofplasticbags.Ithinkit'sagreatideathatyounowhavetopayforplasticbagsinsomestores.Andinsteadofdrivingtoschoolorwork,youcan/shouldrideyourbikeorwalk.Ifit'sfar,youcan/couldtakethebus.Allthesesmallthingscouldaddupandbecomebigthingsthatwould/canimprovetheenvironment.Let'sactionnow!Task2Listenandcompletethesentences.PollutionproblemsWhatthestudentscandoIftheriversarepolluted,farmerscan'tusethe

fortheircrops.2.Insomeplaces,pollutionfrom

spreadsovercitiesandvillages.3.Thecarsontheroadsusesomuchoilandcause

.4.Supporta

school:everyclasscollectswastewhichcanberecycledorusedagain.Thentheschoolsellsthewasteandusesthemoneytohelpstudentsinpoorareas.5.Studentslearnwaystosaveenergyand

athome.Thatmeanslesswaste.waterfactoriespollutiongreenrecycleAroundtheworldEarthHourReadingTask3Readthepassageandanswerthequestions.EarthHourisheldtowardtheendofMarcheachyear.Theydothistoshowtheirawarenessofclimatechange.WhenisEarthHourheldeachyear?WhydopeopleswitchoffthelightsduringtheEarthHour?WhenandwherewasthefirstEarthHourheld?ThefirstEarthHourwasheldin2007inSydney.Moreandmorecitiesaretakingpartintheevent,suchasBeijing,London,RomeandNewYork.Whichcityistakingpartintheeventtoday?KindsofpollutionWaystocutdownwaterpollutionaskfactoriesnottothrowwastintotheriver;remindpeoplenottolitter...landpollutionensurethatfactoriesthrowawayindustrialwastinaresponsibleway;trynottouseplasticbagswhenshopping...Workingroups.

Discussingwhatwecandoaboutpollution.Task4KindsofpollutionWaystocutdownnoisepollutionbuildairportawayfromplaceswherepeoplelive...airpollutionencouragepeopletousepublictransportationinsteadofdriving;reducethenumberoffactoriesthatburncoal...StatementTheearthusedtobesobeautiful.

Theriverispollutedbyfactories.Theairpollutionisgettingworseandworse.Wehaveseenmanychangesintheenvironment.Peopleshouldtakeactionsnow.GrammarPresentprogressive(现在进行时)Modalverbs（情态动词）Passivevoice（被动语态）usedtodosth（指过去惯常做某事，现在则不了）Presentperfect（现在完成时）Matcheachstatementwiththegrammarstructure.Thisbeautifulplanetistheearth—ouronlyHOME.Weoncelivedinagoodenvironment.ManandNaturelivedinharmony.Sotogether,let'sbeginwiththesmallt