myheartfeltthanksgotomytutor,professorx,whohashelpedmeinthecompletionofthisthesisinmiª²ª²tnessandcarefulness,andhissuggestionsandcommentshavebeenencouraging,rigorous,criticalandithouthisenlighteningsuggestionsandgreatencourageª²men,ª²yearstudies.

iwishtothankmyprofoundandrespectableacaª²demicadvisor,professorx,forhisvaluableinstructioninthefieldofappliedlinguisticsandhisgreatpatienceinthepast’malsogratefultohmiforhissuggestionsandencouragementandalltheeffortshehasmadetohelpmecompletethe paper.

myspecialthanksgotoxandallthestudentsfromcdutwhohaveparticipatedinmyresearchfortheirinvaluablecontributiontomydatacollection,andxforproª²vidingmewiththeresultofstatisticalanalysesofthedata,andabovealltomyfamilyfortheirsupportandencourageª²mentduringthecourseoftheaccomplishmentofthisthesis.

manyprofessors,friendsandcolleagueshaveconª²tributedtomythesismoreorlessdirectly...

thanksalsogototheplaforeignlanguageunª²iversitywhosefinancialassistanceenabledmetofurthermydoctoralresearchinbeijinguniversityandinthedeparª²tmentofcomparativeliteratureinthestateuniversityofnewyorkatbuffalo.

firstofal,liwouldliketoacknowledgemysuperª²visor,professorzhangyang,whoofferedinsightfulandpowerfulsuggestionsonmiprovingmythesis,andwhoselecª²tureswereofgreathelpandvalueinmythesiswriting.

imustextendmythankstohuangl,imybelovedwife,forherendlesssupportandencouragement;tomyparª²ents-in-lawfortheirbaby-sittingmylovelydaughter,whichsavesmealotoftmieandenergyforthethesis.