毕业论文题目：话语与社会的变迁—基于《人民日报》元旦社论（1949-2013）的历时研究DiscourseandSocialChange—ADiachronicStudyoftheNewYear’sEditorials(1949-2013)inthePeople’sDailyXingJianpingAThesisSubmittedinConformitywiththeRequirementsfortheDegreeofBachelorofArtsSupervisedbyJiWeiningForeignLanguagesSchoolofQingdaoAgriculturalUniversityJune6,2014Contents1.Introduction……………………………………………….....……….….…22.TheoreticalBackground…………………………………………………...33.DiachronicStudyofHighFrequencyKeyWords……………...……......34.DiachronicStudyofTitles………………………..……………………......65.DiachronicStudyofGenericStructure…………..………………..…..….85.1TheIdentificationofGenericUnits—MoveandStep…………....……..95.2ChangesofGenericStructureovertheFivePeriods.......….………......106.Conclusion……………………………………...………………....…….…13References………………………………………………..……….…………14Acknowledgements……………………………………………………...…..16Appendix……………………………………………………………………..17PAGE\*MERGEFORMAT23DiscourseandSocialChange—ADiachronicStudyoftheNewYear’sEditorials(1949-2013)inthePeople’sDailyXingJianpingClass2,2007,ForeignLanguagesSchool,QingdaoAgriculturalUniversityAbstract:Thereisadialecticalrelationshipbetweenlanguageandsociety.Languagechangeswithchangesofsociety,inconverse,alsocastseffectsonsocialchanges.Since1949,Chinesesocietyhasexperiencedseveralmajorsocialchanges.Whetherthesesocialchangeswillaffectlanguageuseornothasbeenoneofthemajorconcernsoflinguisticfield.ThispaperchoosestheNewYear’sEditorialsofthePeople’sDailyasstudyobjectforthepurposetoexploretherelationsbetweendiscourseandsocialchange.Takingsystemicfunctionallinguisticstheoryastheoreticalbasisandthecombinationofqualitativeandquantitativeanalysisasresearchmethod,thisstudyinvestigatesthediachronicchangesoftheNewYear’sEditorialsover65years(1949-2013).Thisinvestigationmainlyprecedesthroughthreeaspects,namely,analysisofthehighfrequencykeywords,title,andgenericstructure.TheanalysisrevealsthattheNewYear’sEditorial,asatypeofdiscourse,displaysevidentdiachronicchangeswhichhave