| 摘要 | 第4-5页 |
| Abstract | 第5-6页 |
| Introduction | 第11-15页 |
| Research Background | 第11-12页 |
| Research Questions | 第12页 |
| Objective and Significance of the Research | 第12-13页 |
| Organization of the Thesis | 第13-15页 |
| Chapter One Previous Researches on Bilingualism, Code-switching andLanguage Situation | 第15-28页 |
| 1.1 Previous Researches on Bilingualism and Diglossia | 第15-19页 |
| 1.1.1 Bilingualism and Diglossia | 第15-17页 |
| 1.1.2 High Variety and Low Variety | 第17页 |
| 1.1.3 Putonghua and Local Dialect | 第17-18页 |
| 1.1.4 Putonghua and Minority Languages | 第18-19页 |
| 1.2 Previous Researches on Code-switching | 第19-24页 |
| 1.2.1 Code-switching | 第19-20页 |
| 1.2.2 Different Views on Classification of Code-switching | 第20-21页 |
| 1.2.3 Different Perspectives of the Research on Code-switching | 第21-23页 |
| 1.2.4 Motivation of Code-switching | 第23-24页 |
| 1.3 Previous Researches on Language Situation in China and Yueyang | 第24-26页 |
| 1.3.1 Language Situation in China | 第25页 |
| 1.3.2 Language Situation in Yueyang | 第25-26页 |
| 1.4 Comments on the Previous Researches | 第26-28页 |
| Chapter Two Speech Accommodation Theory | 第28-31页 |
| 2.1 Theoretical Foundation: Four Principles | 第28-29页 |
| 2.2 Convergence | 第29-30页 |
| 2.3 Divergence | 第30-31页 |
| Chapter Three Research Methodology | 第31-36页 |
| 3.1 Hypothesis | 第31页 |
| 3.2 Selection of Informants | 第31-32页 |
| 3.3 Data Collection | 第32-34页 |
| 3.3.1 Participant Observation and Non-participant Observation | 第33-34页 |
| 3.3.2 Tape-recorded Naturalistic Conversation | 第34页 |
| 3.4 Data Processing | 第34-36页 |
| 3.4.1 Transcription of Speech Data | 第34-35页 |
| 3.4.2 Analysis of Data with GOLDVARBX | 第35-36页 |
| Chapter Four Results and Discussion | 第36-59页 |
| 4.1 Situation of the Use of Language in Commercial Places | 第36-40页 |
| 4.1.1 Overall Distribution of the Use of Putonghua and Yueyang Dialect | 第36-37页 |
| 4.1.2 Code-switching Between Putonghua and Yueyang Dialect in Different Levelsof Commercial Places | 第37-40页 |
| 4.2 Influence of Social Factors on Language Choice | 第40-46页 |
| 4.2.1 Age and Language Choice | 第40-42页 |
| 4.2.2 Gender and Language Choice | 第42-43页 |
| 4.2.3 Educational Level and Language Choice | 第43-45页 |
| 4.2.4 Place Level and Language Choice | 第45-46页 |
| 4.3 Multivariate Analysis | 第46-48页 |
| 4.4 Motivations of Code-switching | 第48-59页 |
| 4.4.1 For Marketing Purposes | 第48-51页 |
| 4.4.2 For Convenience | 第51-54页 |
| 4.4.3 For Change of Emotional Distance | 第54-55页 |
| 4.4.4 For Emphasis | 第55-59页 |
| Chapter Five Implications Obtained from the Research | 第59-61页 |
| 5.1 Relations Between Putonghua and Yueyang Dialect in Yueyang City49 | 第59-60页 |
| 5.2 Suggestions for Language Policy in Commercial Places in YueyangCity | 第60-61页 |
| Conclusion | 第61-63页 |
| Major Findings of the Study | 第61-62页 |
| Limitations of the Study and Suggestions for Further Study | 第62-63页 |
| Works Cited | 第63-68页 |
| Acknowledgement | 第68-69页 |
| Appendix A: The Chinese Transcription of the Cited Examples ofCode-switching of Salesperson in Yueyang City | 第69-74页 |
| Appendix B: Coding for Each Factor Group | 第74-75页 |
| Appendix C: Samples of the Reception Language of Salespersons inYueyang City | 第75-77页 |
| Appendix D: Table of Informant’s Detailed Information | 第77-78页 |
| Informative Abstract in Chinese | 第78-81页 |
| Résumé and Publications since Entering the Program | 第81页 |
