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1、Lecture2BasicFactsaboutUSA–ItsLandandPeopleOutline§Position&geographicdivision;§Climateandweather;§Landresources;§Riversandlakes;§Naturalresources;§Territories&otherareas;§AmericanpeopleAbriefintroductiontoU.S.A.§The UnitedStatesofAmerica (alsocalledthe UnitedStates,th
2、e U.S.,the USA, America,andtheStates)isa federalconstitutionalrepubliccomprising 50states anda federaldistrict.Thecountryissituatedmostlyincentral NorthAmerica,whereits48contiguousstates andWashingtonD.D.,the capitaldistrict,liebetweenthePacificandAtlanticOceans,border
3、edby Canadatothenorthand Mexico tothesouth.Thestateof Alaskaisinthenorthwestofthecontinent,withCanadatotheeastand Russia tothewest,acrossthe Bering.Thestateof Hawaii isanarchipelago inthemid-Pacific.Thecountryalsopossesses severalterritories inthePacificandCaribbean.Ab
4、riefintroductiontoU.S.A.§Totalarea:3.79 millionsquaremiles(9.83 millionskm),thefourthlargest§Population:around315million,thethirdlargest§Itisoneoftheworld‘smost ethnicallydiverseand multiculturalnations,theproductoflarge-scale immigrationfrommanycountries. The U.S.econ
5、omy istheworld’slargestnationaleconomy,withanestimated2011 GDP of$15.1 trillion（万亿）.Percapitaincomeistheworld's seventh-highest.11Position&Geographicdivision§50states:§2statesseparatedfromcontinentalU.S.1)Alaska(1.5millionskm)separatedfrommainlandAmericabyCanada,Alaska
6、isthelargeststateintheUnitedStatesinlandareaat586,412squaremiles(1,518,800skm),overtwicethesizeofTexas,thenextlargeststate. 2)Hawaii(17,000skm)Liesabout3,200kmawaytothewestandinthePacificOcean.§Overseasterritoriesa)Guan(Island)关岛;b)PuertoRico（波多黎各）;c)theVirginIslandsTe
7、rritories&otherareas§PuertoRicoabout9,000squarekmsintheCaribbeanSea,linkedtoU.S.asacommonwealth,2,712,000people,electtheirowngovernorandlegislature.SomePacificislands§Guan(Island):largest549squarekms;85,000people;thecongressiselectedbythelocalpeople;thegovernmentisunde
8、rtheadministrationoftheU.S.DepartmentofInterior.§AmericanSamoa(197kms,population27,000)Territories&otherareas§WakeIsl
