| Acknowledgements | 第1-6页 |
| Abstract | 第6-8页 |
| 摘要 | 第8-12页 |
| Chapter Ⅰ Introduction | 第12-14页 |
| Chapter Ⅱ Literature Review | 第14-28页 |
| ·Terminological Issues of Code Switching | 第14-17页 |
| ·Code and Code Switching | 第14-16页 |
| ·Code Switching and Borrowing | 第16-17页 |
| ·Types of Code Switching | 第17页 |
| ·Approaches to the Analysis of Code Switching | 第17-28页 |
| ·Sociolinguistic Approach | 第18-19页 |
| ·Grammatical Approach | 第19页 |
| ·Psycholinguistics Approach | 第19-20页 |
| ·Conversational Approach | 第20-21页 |
| ·Pragmatic Approach | 第21-28页 |
| ·Linguistic Adaptation Theory | 第22-25页 |
| ·YuGuodong's Adaptation Model | 第25-28页 |
| Chapter Ⅲ Data Analysis of Code Switching | 第28-44页 |
| ·Chinese/English Code Switching in CMC as Adaptation to Linguistic Reality | 第28-33页 |
| ·Code Switching as a Strategy to Fill Lexical Gaps | 第28-30页 |
| ·Code Switching as a Strategy to Avoid Ambiguity | 第30-31页 |
| ·Code Switching as a Strategy to Be Accurate in Quotation | 第31-32页 |
| ·Code Switching as a Strategy to Abide the Principle of Economy | 第32-33页 |
| ·Chinese/English CS in CMC as Adaptation to Social Conventions | 第33-35页 |
| ·Code Switching as a Strategy to Avoid Bad Words | 第33-34页 |
| ·Code Switching as a Strategy to Avoid Taboos | 第34-35页 |
| ·Chinese/English Code Switching in CMC as Adaptation to Psychological Motivations | 第35-44页 |
| ·Code Switching as Mitigation Device Strategy | 第36-37页 |
| ·Code Switching as Authenticity-Keeping Strategy | 第37页 |
| ·Code Switching as Humor-Creating Strategy | 第37-38页 |
| ·Code Switching as In-the-fashion Strategy | 第38-40页 |
| ·Code Switching as Indirect Strategy | 第40-41页 |
| ·Code Switching as Language Skill Showing Strategy | 第41-44页 |
| Chapter Ⅳ Major Findings | 第44-48页 |
| Chapter Ⅴ Conclusion | 第48-50页 |
| Bibliography | 第50-52页 |
