文档介绍：ABSTRACTThisthesis,basedonpreviousachievementsandfieldwork,makesasystematicanalysisonthelanguageusingandlanguageattitudeofTachengurbanDaurbymeansofliteraturesearch,historicalresearch,casestudy,statisticalmethods,,findsthepositiveandnegativefactorswhichinfluencetheDaurlanguageusing,leamstherelationshipamongtheuse,theattitudeandtheabilityoflanguage,,integratingdescribe,,,,anddiscussesinfourrespects:individuallanguageacquisition,munitylanguageuse,,urringinthechangingprocess,suchasthe3rapidexpansionoftheChineselanguage,theexistentialcrisisofmothertongue,,patibilityinlanguageattitudeiSfindout.。,,thischapterdescribesthecurrentsituationofTachengcity,makesain—depthinterpretationofmacroandmicrofactorsofurbanizationandtherelationshipbetweenthefactorsandlanguageusage,—linear,sensitivedependenceoninitial,Strangeattractor,equilibriuma