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1、TheUnitedStatesofAmericaGeographyandPeopleContentsGeography1Climate3NaturalResources4People5MajorCities2IntroductionTheUnitedStatesofAmerica,isalsocalledAmerica,theStates,theUS,orUncleSam!MapoftheUnitedStatesWatchthemapofU.S.Acarefullyandfindcluestothefollowingitemslocation(borde
2、ringneighbors)States(thesmallest&thelargeststate)SizeandLocationInthecentralpartofNorthAmerica(exceptAlaskaandHawaii);CanadaonthenorthMexicoandtheGulfofMexicoonthesouthAtlanticOceanontheeastPacificOceanonthewesttotalarea—9,5millionsquarekilometers;50statesandthefederaldistrictofC
3、olumbia—theseatoftheFederalGovernment.Statesoriginal48statesAlaskaandHawaii,separatedfromthecontinent,becamethe49thand50thstatesin1959.AlaskabordersonnorthwesternCanadaHawaiiliesinthecentralPacificOceanAlaska—thelargestRhodeIsland罗得岛州—thesmallestTexas—thelargestonthemainlandTheU.
4、S.hasanideallocationfortrade.ItsAtlanticcoastfacesthedevelopedcountriesofWesternEuropeanditsPacificcoastandHawaiigivethenationanapproachtotheFarEastandAustralasia.InthepasttheAtlanticandPacificOceansservedasnaturalbarriersbetweentheU.S.andtherestoftheworld.ThisallowedtheU.S.togro
5、wandbecomestrongwithlittleoutsideinterference.TodaywiththedevelopmentofthemeansofcommunicationandtransportationtheworldhasbecomesmallerandtheU.S.iswellconnectedtotherestoftheworld.TheNameandLocationTheMainRegionsTheU.S.hasalandareaof9.3millionsquarekilometers.Itisthefourthlargest
6、countryintheworldinsizeafterRussia,CanadaandChina.ThenationalcapitalisWashington,D.C.,locatedalongthebanksofthePotomacRiverbetweenthestatesofMarylandandVirginia.Topography---TheFaceofthelandMountainsTheAppalachians（阿帕拉契山脉）:thehighestpeakoftheAppalachiansisonlyalittleover2,000mete
7、rs.TheRockies（洛基山脉）:thehighestpeakoftheRockiesisabout4,500meters.It’sthebackboneoftheNorthAmericacontinent,isalsoknownastheContinentalDivide大陆的分水岭.Itisagroupoffiveconnectedfreshwaterlakes.Itincludes(fromlargesttosmallest)LakeSuperior,LakeHuron,LakeMichigan,LakeErie,andLakeOntario
8、.五大湖总面积约245660平方公里，是世界上最大的淡水水域。五大湖流域约为76
