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1、Locationmainland:inthecentralpartofNorthAmericaAlaska:bordernorthwesternCanada1959,49thstateHawaii:inthecentralPacificOcean1959,50thstateSurroundings(mainland)onthenorth–Canadaonthesouth-theGulfofMexicoontheeast-theAtlanticOceanonthewest-thePacificOceanAdministrativeRegion50s
2、tatesmainland-48statesdetachedterritory-Alaskaoffshoreislands-HawaiiWashingtonD.C.afederaldistrictofColumbiaThreedistinctareas(1)theeasternpart(2)thewesternpart(3)theGreatPlains——fiveGreatLakes——MississippiRiver——TheGreatLakes(freshwater)LakeSuperiorLakeHuronLakeErieLakeOntar
3、ioLakeMichiganNiagaraFallsbetweenLakeErie&LakeOntarioonU.S.-Can.navigationlinkageofmanyindustrialareas——TheMississippiRiver(thefatherofwaters)longestinNorthAmericaoriginatefromtheLakeItasca(inMN)totheGulfofMexico3780kmlong3millionskmofdrainageareaSixregionsNewEngland,Mid-Atla
4、ntic,South,Midwest,Southwest,West(1)NewEngland(2)SouthRegion(3)WesternRegion(4)California(5)Alaska(6)HawaiiNewEngland6states:CT,ME,MA,NH,RI,VTEuropeans’firstsettlementsgeographicalfeatureshistoricsitestop-rankinguniversities&collegesHarvard,Yale,MITetc.TheIvyLeagueBrownU.RICo
5、lumbiaU.NYcityNYCornellU.NYDartmouthCollegeNHHarvardU.MAU.ofPennsylvaniaPAPrincetonU.NJYaleU.CT(2)TheSouthRegion13statesplentifulrainfall&amildclimatecropsgrownfrost-free6monthsindustrydevelopingpopulationgrowing(3)TheWesternRegion11statesbeautifulforests&streamsenvironmentpr
6、otection(4)CalifornianaturalfeaturesnotablecitiesGDP&agriculturalyieldpredominanthigh-techcenterseg:SiliconValley(5)AlaskastretchingsouthwardfromtheArcticOceantothePacificaworldofglaciers,waterfalls,lakestemperaturelownativepopulation:Eskimosmostly,&Indians,Aleutsnaturalresou
7、rces:agriculturalindustrial(6)HawaiiachainofbeadsincentralPacific8majorislands2575kmlongsoutheasttonorthwesttemperaturemildchiefproductslargestsourceofincome:touristbusiness2.Climatemildsubtropicalzones:moststatestropical：southernFL,HI50cmrainfallline(throughmiddle,fromnortht
8、osouth)totheeast–comparativelymoreraintothewest–muchlessrainexceptio
