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1、TheNileRiverTheNileistheworld'slongestriverat4,135miles.Ithastwosources,oneatLakeVictoria,inUganda(theWhiteNile)andoneatLakeTana,inEthiopia(theBlueNile).TheentireNileRiverDeltaisestimatedtodrain(排水)anareaof1,293,000squaremiles.Thisareaissovast(广阔的)that
2、ithasanumberofdifferentclimateareas.North,inEgyptandSudan,rainfallissparse.Moretothesouth,inandaroundEthiopia,rainfallisheavy,contributingtothefloodwatersthatrushdownstreamandeventuallycreatethewonderfullyfertilesoilthatsupportssomuchoflifeinEgyptandSu
3、dan.Dams,themostnotablebeingtheAswanHighDam,havebeenbuiltalongtheroutetopreventmassivefloodingofpopulatedareas.TheNileRiverDeltaishometomanyspeciesofanimals,includingcrocodiles,turtles,baboons,wildebeest,andmorethan300speciesofbirds,includingfishingeag
4、les,ibis,andtheNileValleySunbird.TheancientEgyptianscalledtheriverArorAur,meaning"black,"becauseoftheblacksedimentleftbehindafterthefrequentriverfloods.TheancientGreekscalledtheriverKem,whichtranslatesinto"black"aswell.ButitisasNilethatweknowthisrivert
5、oday.NilecomesfromtheGreekNeilos,whichmeans"rivervalley".ThepeoplewholivedalongtheNileinancienttimesusedtheriverforagricultureandtransportation.Thathasn'tchanged,althoughthemethodsofagricultureandtransportationhave.SteamshipsarestillusedinEgyptandSudan
6、,totransportgoods.FactsabouttheNileRiverLength4,135milesSource(s)LakeVictoria,Uganda;LakeTana,EthiopiaMouthMediterraneanSea,offEgyptCountriesFlowsThroughEgypt,Sudan,Uganda,Ethiopia,Zaire,Kenya,Tanzania,Rwanda,BurundiMajorCitiesFlowsBy/ThroughCairo,Karh
7、toum,Aswan,Luxor,Alexandria,EgyptWhereNameComesFromGreekwordNelios,whichmeans"RiverValley"