英语介绍 美国PPT 第二部

TheUnitedStatesofAmericaGeographyandPeopleContentsGeography1Climate3NaturalResources4People5MajorCities2IntroductionTheUnitedStatesofAmerica,isalsocalledAmerica,theStates,theUS,orUncleSam!MapoftheUnitedStatesWatchthemapofU.S.Acarefullyandfindcluestothefollowingitemslocation(borderingneighbors)States(thesmallest&thelargeststate)SizeandLocationInthecentralpartofNorthAmerica(exceptAlaskaandHawaii);CanadaonthenorthMexicoandtheGulfofMexicoonthesouthAtlanticOceanontheeastPacificOceanonthewesttotalarea—9,5millionsquarekilometers;50statesandthefederaldistrictofColumbia—theseatoftheFederalGovernment.Statesoriginal48statesAlaskaandHawaii,separatedfromthecontinent,becamethe49thand50thstatesin1959.AlaskabordersonnorthwesternCanadaHawaiiliesinthecentralPacificOceanAlaska—thelargestRhodeIsland罗得岛州—thesmallestTexas—thelargestonthemainlandTheU.S.hasanideallocationfortrade.ItsAtlanticcoastfacesthedevelopedcountriesofWesternEuropeanditsPacificcoastandHawaiigivethenationanapproachtotheFarEastandAustralasia.InthepasttheAtlanticandPacificOceansservedasnaturalbarriersbetweentheU.S.andtherestoftheworld.ThisallowedtheU.S.togrowandbecomestrongwithlittleoutsideinterference.TodaywiththedevelopmentofthemeansofcommunicationandtransportationtheworldhasbecomesmallerandtheU.S.iswellconnectedtotherestoftheworld.TheNameandLocationTheMainRegionsTheU.S.hasalandareaof9.3millionsquarekilometers.ItisthefourthlargestcountryintheworldinsizeafterRussia,CanadaandChina.ThenationalcapitalisWashington,D.C.,locatedalongthebanksofthePotomacRiverbetweenthestatesofMarylandandVirginia.Topography---TheFaceofthelandMountainsTheAppalachians（阿帕拉契山脉）:thehighestpeakoftheAppalachiansisonlyalittleover2,000meters.TheRockies（洛基山脉）:thehighestpeakoftheRockiesisabout4,500meters.It’sthebackboneoftheNorthAmericacontinent,isalsoknownastheContinentalDivide大陆的分水岭.Itisagroupoffiveconnectedfreshwaterlakes.Itincludes(fromlargesttosmallest)LakeSuperior,LakeHuron,LakeMichigan,LakeErie,andLakeOntario.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766100平方公里，南北延伸近1110公里，从苏必利尔湖西端至安大略湖东端长约1400公里。湖水大致从西向东流，注入大西洋。除密歇根湖和休伦湖外水平面相等外，各湖水面高度依次下降。TheGreatLakes苏必利尔湖(LakeSuperior)是北美洲五大湖最西北和最大的一个，也是世界最大的淡水湖，是世界仅次于里海的第二大湖。密歇根湖(LakeMichigan)休伦湖(LakeHuron)伊利湖(LakeErie)安大略湖(LakeOntario)苏必利尔湖密歇根湖休伦湖伊利湖安大略湖TheGreatLakesThemostimportantsystemofinlandwaterwaysintheworld.LakeMichigan—whollywithintheUnitedStatespartofthenationalboundarybetweentheUnitedStatesandCanadarunsthroughthischainoflakes.NiagaraFalls--locatedontheU.S.–CanadianborderbetweenLakeErieandLakeOntario.TheGreatSaltLakeinthestateofUtahwasformedduringtheIceAge.Astheclimatewarmed,themeltedwaterfromhugeglacierscreatedanumberoflakesandriversacrosstheNorthAmericanContinent.Utahcapital：盐湖城SaltLakeCityGreatSaltLakeGreatSaltLakeRiversTheMississippiRiverthelongestandthemostimportantriverinthesystemoftheGulf.length—6,262kilometersdrainagearea—3,225,000squarekilometers.Knownasthe“fatherofwaters”toAmericanIndiansAsMarkTwainwasraisedontheriver,hismostpopularandimportantwritingsareconcernedwiththisarea．TheAdventuresofHuckleberryFinntellsthestoryofhowtheboyHuckleberryFinnandhisblackfriendJim,arunawayslave,saileddowntheMississippionaraft.TheMissouriandtheOhiotwoofthelargesttributariesoftheMississippi.formanimportantinlandnavigationandirrigationsystem.TheHudsonRiverlinkedbycanalswiththefiveGreatLakesflowsthroughthestateofNewYorklength—520kilometers.2.MainGeographicalRegionsNewEnglandTheMid-AtlanticStatesTheSouthTheMidwestTheWestTheSouthwestNewEnglandincludingsixstatesinthenortheasterncorner.longhistory—theEuropeans’firstsettlementfeaturedwithmountains,valleysandrivers,andcitiesandtownswithhistoricsitestop-rankinguniversitiesHarvardYaleMassachusettsInstituteofTechnology(MIT)TheNewEnglandRegionSixstates:MaineNewHampshireVermontMassachusettsRhodeIslandConnecticut缅因州、新罕布什尔州、佛蒙特州、马萨诸塞州、罗德岛州、康涅狄格州。NewENGLANDTheSouthRegionincluding11stateswithplentifulrainfallandamildtowarmclimatefavorableclimateforagriculturefastgrowingindustryandpopulationinrecentyearsgreatsizewithfewlargecitiesNewOrleansMiamiMemphisAtlantaBirminghamTheSouthRegionVirginia,NorthCarolina,SouthCarolina,Georgia,Florida,Alabama,Mississippi,Tennessee,Kentucky,LouisianaandArkansasAmericanSouthernAreaTheWesternRegionincluding11states,likeWashington,Oregon俄勒冈州andCalifornia,etc.Oregon--wealthofbeautifulforestsandstreamsCaliforniastrikingnaturalfeatures--centralvalley,highmountains,andhotdrydeserts.notablecities•SanFrancisco•LosAngeles•SanDiego14percentofAmericangrossdomesticproductpredominantagricultureyieldinghigh-techindustrycentreOregon&CaliforniaAlaskanorthwesternpartofAmericaAlaska--glaciers,waterfallsandlakesNativepopulationEskimos--halfofallAlaskaNativesIndiansmainagricultureoutput—seafoodindustrialoutputs—crudepetroleum,naturalgas,preciousmetals,seafoodprocessing,timber,andtourism,etc.AlaskaHawaiieightmajorislandsabout2575kilometreslongsoutheasttonorthwestmildtemperaturechiefproducts—canesugar,pineapple,andflowersa