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1、Unit13 ScenicSpotsTheGrandCanyonItisAmerica’smostfamousscenicwonder.Itisahugegorge(峽谷)slowlycarvedaway(雕琢)fornearly6millionyearsbythewatersoftheColoradoRiver（科羅拉多河）.Thecanyonissodeepthatthereare4distinctivezonesofclimate（不同的氣候帶）fromtoptobottom.Locatedinnorth-westofArizona（亞利
2、桑那州<美國西南部的州>),itattractsover4millionvisitorseachyear.TheParkwasestablishedin1908byPresidentTheodoreRoosevelt.TheGrandCanyonAmerica’smostfamousscenicwonderLocation:CanyonoftheColoradoRiver(亞利桑那州科羅拉多河的大峽谷),120kilometersnorthofFlagstaff,Arizona(弗拉格斯塔夫：亞利桑那的中北部一城市)History:Establ
3、ishedin1908byPresidentTheodoreRoosevelt(西奧多．羅斯福)Area:446kmlong,29kmwideand1500mdeep;4930sqkm,withintheboundariesoftheGrandCanyonNationalParkTheGrandCanyon科羅拉多大峽谷TheGrandCanyonTheGrandCanyon SouthRimTheGrandCanyon SouthRimTheGrandCanyon NorthRimTheSouthwestTotheeastoftheGrand
4、CanyonNational,thePaintedDesertNationalPark(彩色沙漠國家公園)islocatedinthemid-northofArizona,whichisfamousformulticoloredhills(多彩的沙丘).Withinit,thereisthePetrifiedForest(石化森林國家公園),afieldoffallentreesthathaveturnedtostonebyaprocessofmineralization(礦化)knownaspetrifaction（石化）.TheSouthw
5、estthePaintedDesertNationalPark彩色沙漠PetrifiedForest石化森林PetrifiedForestTheSouthwestTothesouthoftheGrandCanyonNational,thereistheSunsetCraterVolcanoNationalPark(落日火山口國家公園)TheSouthwestTothewestoftheGrandCanyonNational,thereisHooverDam(胡佛水壩)andthelakebehindit,LakeMead(米德湖).Hoover
6、DamisamajorhydroelectricpowersupplierandisnamedafterPresidentHerbertHoover.TothenorthoftheGrandCanyonNational,thedesertareasofNevada(內華達州<美國西部內陸州>)andthemountainsandstreamsofsouthwesternColoradoarebeautiful.HooverDamthedesertareasofNevadaTheNorthwestTothefarnorthoftheGrandCa
7、nyonNational,neartheCanadianborderisYellowstoneNationalpark(黃石國家公園,大部分位于懷俄明州西北部),whichwasestablishedin1872,andistheoldestandoneofthelargestnationalparksintheUS.Itisnamedaftertheriverthatflowsthroughthearea.Itisknownforitsgeysers(間歇泉)andhotsprings.Oneofthemostfamousofthegeyse
8、rsistheOldFaithful(老忠實泉).*TothesouthoftheYellowstoneNationalparkisGrandTeto
