AcknowledgmentsMydeepestgratitudegoesfirstandforemosttoProfessorLi,mysupervisor,forherconstantencouragementandguidance
Shehaswalkedmethroughallthestagesofthewritingofthisthesis
Withoutherconsistentandilluminatinginstruction,thisthesiscouldnothavereacheditspresentform
Second,IwouldliketoexpressmyheartfeltgratitudetoProfessorYangwholedmeintotheworldoftranslation
Lastmythankswouldgotomybelovedfamilyfortheirlovingconsiderationsandgreatconfidenceinmeallthroughtheseyears
Ialsoowemysinceregratitudetomyfriendsandmyfellowclassmateswhogavemetheirhelpandtimeinlisteningtomeandhelpingmeworkoutmyproblemsduringthedifficultcourseofthethesis
AbstractAsanativelanguage,thetransferofmothertonguehasagreatimpactonlanguagelearners
ForTibetanstudents,theirnativelanguageisTibetan,Chineseasasecondlanguage,Englishas