| 中文摘要 | 第1-7页 |
| Abstract | 第7-14页 |
| List of Abbreviations | 第14-15页 |
| CHAPTER ONE INTRODUCTION | 第15-19页 |
| ·Background of the Study | 第15-17页 |
| ·Purpose of the Study | 第17页 |
| ·Significance of the Study | 第17-18页 |
| ·Organization of the Study | 第18-19页 |
| CHAPTER TWO THEORETICAL FRAMEWORK | 第19-25页 |
| ·Austin's Speech Act Theory | 第19页 |
| ·Searle's Development of Speech Act Theory | 第19-20页 |
| ·Politeness Principle | 第20-22页 |
| ·Saving Face Theory | 第22-23页 |
| ·Conversation Analysis | 第23-25页 |
| CHAPTER THREE LITERATURE REVIEW | 第25-29页 |
| ·Studies on Endangered Languages | 第25-26页 |
| ·Previous Studies on Cross-Cultural Pragmatics | 第26-27页 |
| ·Studies on Dongxiang Minority Language and Lanzhou Dialect | 第27-28页 |
| ·Previous Studies on Speech Act of Thanking | 第28-29页 |
| CHAPTER FOUR METHODOLOGY | 第29-40页 |
| ·Research Design and Contents | 第29-31页 |
| ·Participants | 第31-33页 |
| ·Research Procedures | 第33-40页 |
| ·Interview | 第33页 |
| ·Design of Role-play | 第33-36页 |
| ·Transcription of Videos and Recording | 第36页 |
| ·Pilot Study | 第36-37页 |
| ·Large-Scale Questionnaire | 第37页 |
| ·Data Coding and Analysis | 第37-40页 |
| CHAPTER FIVE RESULTS | 第40-54页 |
| ·Results of Blood Relationship Group | 第40-44页 |
| ·Results of Marital Relationship Group | 第44-46页 |
| ·Results between Blood Relationship Group and Marital Relationship Group | 第46-51页 |
| ·Resulsts between Mother--Son and Mother-in-law--Son-in-law | 第47-48页 |
| ·Resulsts between Mother--daughter and Mother-in-law —daughter-in-law | 第48-49页 |
| ·Resulsts between Daughter--Mother and Daughter-in-law--Mother-in-law | 第49-51页 |
| ·Results of mother-in-law and son-in-law/daughter-in-law between DML and LD | 第51-54页 |
| ·Resulsts between Mother-in-law and Son-in-law between DML and LD | 第51-52页 |
| ·Resulsts between Mother-in-law and Daughter-in-law between DML and LD | 第52-54页 |
| CHAPTER SIX ANALYSIS AND DISCUSSION | 第54-69页 |
| ·The Analysis and Discussion of Blood Relationship Group | 第54-58页 |
| ·Thanking Strategies between Mother--Son and Mother--Daughter | 第54-56页 |
| ·Thanking Strategies between Mother--Children and Children--Mother | 第56-58页 |
| ·The Analysis and Discussion of Marital Relationship Group | 第58-61页 |
| ·The Analysis and Discussion of Blood Relationship Group and Marital Relationship Group | 第61-65页 |
| ·Thanking Strategies between Mother--Son and Mother-in-law--Son-in-law | 第62-63页 |
| ·Thanking Strategies between Mother--Daughter and Mother-in-law--Daughter-in-law | 第63-64页 |
| ·Thanking Strategies between Daughter--Mother and Daughter-in-law--Mother-in-law | 第64-65页 |
| ·The Analysis and Discussion of between mother-in-law and son-in-law-daughter-in-law between DML and LD | 第65-69页 |
| ·Thanking Strategies between Mother-in-law-Son-in-law between DML and LD | 第65-67页 |
| ·Thanking Strategies between Mother-in-law-Daughter-in-law between DML and LD | 第67-69页 |
| CHAPTER SEVEN CONCLUSIONS | 第69-73页 |
| ·Main Findings of the Study | 第69-72页 |
| ·Limitations of the Study and Suggestions | 第72-73页 |
| REFERENCES | 第73-79页 |
| APPENDICES | 第79-91页 |
| Appendix A Partial questionnaires of Dongxiang Minority Language | 第79-87页 |
| Appendix B Partial questionnaires of Lanzhou Dialect | 第87-91页 |
| 作者在攻读硕士学位期间的科研成果 | 第91-92页 |
| Acknowledgements | 第92页 |
