九年级英语全册Unit13We’retryingtosavetheearthWednesday复现式周周练课件人教新目标版.ppt

,Unit13Weretryingtosavetheearth!,Wednesday星期三(GrammarFocus4c),一、核心词汇afford,(GrammarFocus-4c),二、重点短语turnoff关掉；payfor付款，付出代价；takeaction采取行动,(GrammarFocus-4c),三、主要语法：1.现在进行时：be(am/is/are)+doing如：Weretryingtosavetheearth.我们正在努力拯救地球。2.usedtodo曾经如：Theriverusedtobesoclean.河流曾经是那么干净。,(GrammarFocus-4c),3.被动语态：be(am/is/are/was/were)+动词过去分词如：Theairisbadlypolluted.空气遭到严重污染。4.现在完成时：have/has+动词过去分词如：Noscientificstudieshaveshownthatsharkfinsaregoodforhealth.,(GrammarFocus-4c),没有科学研究表明，鱼翅对健康有好处。5.情态动词+动词原形如：Weshouldhelpsavethesharks.我们应该帮助拯救鲨鱼。,(GrammarFocus-4c),四、基础复现天天练：垃圾问题,(GrammarFocus-4c),WastepaperandusedCokecansarethrownouteverywhere.Youmighthaveseenplasticbagsflyingintheskywhenthewindblowsandgettingcaughtinthetrees.Ormaybeyouveseenoldcanssittinginriversandpollutingthewater.Ourenvironment，theplacewelivein，isbeingruined(毁灭)byus，,(GrammarFocus-4c),thehumanbeings.Believeitornot，everyfamilyinChinamakesaboutoneton(吨)ofrubbisheveryyear.Thatsover100milliontonsofrubbishinChinaalone.Itisenoughtofillalineof10-tontrucksthatgoesaroundtheworldalmostfivetimes.,(GrammarFocus-4c),Allthisrubbishmakesoursoil，ourwaterandourairdirtyanditisthemainreasonofpollution.Soitaffectsourhealth.Badhabits，suchasdroppinglitter，addtothisproblem.Manypeoplethinkthatdroppingonesmallpieceofchewinggum(口香糖)doesntmattertoomuch.,(GrammarFocus-4c),Theydontneedtopayforit.But，didyouknowthatnearly600，000piecesofgumstucktoTiananmenSquareduringthelastNationalDayholiday?Itcost0.2yuantoremoveeachpiece.Anditwilltakemanyyearsforthestains(污迹)ofgumtodisappear.,(GrammarFocus-4c),Soitisclearthatwecannotgoonlivinglikethis.Weneedtocutdownourwaste.Forexample，wecanusetheclothbagsinsteadofplasticbags.Wemustturnoffthelightswhenweleavetheroom.Whatsmore，weshouldntthrowrubbishhereandthere.Weshouldthrowitintothetrashbin.,(GrammarFocus-4c),Thisworldisours.Itisouronlyworld.Anditisthedutyofeverypersontomakeanefforttosaveourenvironment.Ifeveryonetakesactionstosavetheearth，Iamsurewecanmakeadifferenceandleadtoabetterfuture.,(GrammarFocus-4c),()1.Ourenvironmentisbeingruinedby_.A.wastepaperB.cokecansC.thehumanbeingsD.chewinggum,C,(GrammarFocus-4c),()2.Itcostabout_toremovethegumduringthelastNationalDayholiday.A.￥600，000B.￥120，000C.￥300，000D.￥110，000()3.Whatdoestheunderlinedphrase“stuckto”meaninChinese?A.粘住B.扔掉C.捡起D.浪费,B,(GrammarFocus-4c),A,()4.Themaincauseofpollutionis_accordingtothepassage.A.litteringB.spittingC.badhabitsD.rubbish,D,(GrammarFocus-4c),()5.Themainideaofthepassageis_.A.weshouldcutdownwasteandgiveupbadhabitstosavetheearthB.removingchewinggumisreallyhardworkC.rubbishmakesoursoil，ourwaterand