| Acknowledgements | 第1-5页 |
| Abstract | 第5-7页 |
| 摘要 | 第7-13页 |
| Chapter One Introduction | 第13-17页 |
| ·Research Background | 第13-14页 |
| ·Purpose and Significance of the Study | 第14-15页 |
| ·Organization of the Thesis | 第15-17页 |
| Chapter Two Literature Review | 第17-28页 |
| ·Definitions of Code-switching | 第17-18页 |
| ·Categories of Code-switching | 第18页 |
| ·Relevant Studies on Code-switching Abroad | 第18-24页 |
| ·The Grammatical Approach | 第19-20页 |
| ·The Sociolinguistic Approach | 第20-21页 |
| ·The Psycholinguistic Approach | 第21-22页 |
| ·The Conversational Analysis Approach | 第22-23页 |
| ·The Pragmatic Approach | 第23-24页 |
| ·Relevant Studies on Code-switching in China | 第24-25页 |
| ·Relevant Studies on Code-switching in TV Plays | 第25-27页 |
| ·Summary | 第27-28页 |
| Chapter Three Theoretical Framework | 第28-36页 |
| ·A Brief Description of Ecolinguistics | 第28-29页 |
| ·The Ecological Principle- Diversity | 第29-33页 |
| ·The Biological Diversity | 第30页 |
| ·The Linguistic Diversity | 第30-32页 |
| ·The Cultural Diversity | 第32页 |
| ·The Relationship Between the Biological Diversity, the Linguistic Diversity and Cultural Diversity | 第32-33页 |
| ·The Linguistic Environment | 第33-34页 |
| ·Ecological View of Language | 第34-35页 |
| ·Summary | 第35-36页 |
| Chapter Four Ecolinguistic Analysis of Code-switching in iPartment Season 3 | 第36-58页 |
| ·Linguistic Diversity iPartment Season 3 | 第36-46页 |
| ·Different Languages and Dialects Switched in iPartment Season 3 | 第36-42页 |
| ·Different Forms of CS in iPartment Season 3 | 第42-46页 |
| ·Inevitability of Diversified CS in iPartment Season 3 from the Aspect of Diversity | 第46-47页 |
| ·Possibility of CS iPartment Season 3 from the Aspect of the Linguistic Environment | 第47-54页 |
| ·The Bio-logical Environment of CS in iPartment Season 3 | 第47-51页 |
| ·The Ideo-logical Environment of CS in iPartment Season 3 | 第51-53页 |
| ·The socio-logical environment of CS in iPartment Season 3 | 第53-54页 |
| ·Ecological View of CS in iPartment Season 3 | 第54-56页 |
| ·Openness | 第55-56页 |
| ·Harmonious Existence | 第56页 |
| ·Summary | 第56-58页 |
| Chapter Five Conclusion | 第58-61页 |
| ·Major Findings of the Thesis | 第58-59页 |
| ·Implications of the Study | 第59-60页 |
| ·Limitations of the Study and Suggestions for Further Research | 第60-61页 |
| Works cited | 第61-64页 |
| Appendix | 第64-88页 |
| Publications | 第88页 |
