| Acknowledgements | 第1-6页 |
| 摘要 | 第6-7页 |
| Abstract | 第7-11页 |
| Chapter One Introduction | 第11-14页 |
| ·The Research Context | 第11-12页 |
| ·The Significance of the Research | 第12-13页 |
| ·The Aims of the Research | 第13页 |
| ·The Organization of the Research | 第13-14页 |
| Chapter Two Literature Review | 第14-26页 |
| ·E-discourse and Microblog | 第14-15页 |
| ·What is E-discourse and Microblog? | 第14页 |
| ·A General Review on E-discourse and Microblog | 第14-15页 |
| ·Code-switching | 第15-21页 |
| ·The Definitions of Code-switching | 第15-17页 |
| ·The Categories of Code-switching | 第17-18页 |
| ·Studies on Code-switching Abroad | 第18-20页 |
| ·Studies on Code-switching at Home | 第20-21页 |
| ·Theoretical Framework | 第21-24页 |
| ·Myers-Scotton’s Matrix Language Frame Model (MLF Model) | 第21-22页 |
| ·Code switching Research on Adaptation Theory | 第22-24页 |
| ·Research Questions and Value | 第24-26页 |
| Chapter Three Research Methodology | 第26-29页 |
| ·Research Methods | 第26页 |
| ·The Subject and Data Collection | 第26-28页 |
| ·Limitations and Solutions Concerning Data Collection | 第28-29页 |
| Chapter Four Research Results | 第29-40页 |
| ·Statistical Analysis of the Distribution Pattern of Code-switching in Chinese Microblog | 第29-32页 |
| ·The Morpho-syntax Analysis of Embedded Language and Embedded Language Islands | 第32-37页 |
| ·The Morpho-syntax Feature of Noun Embedded words and Language Islands | 第33-35页 |
| ·The Morpho-syntax Feature of Verb Embedded Words and Language Islands | 第35-36页 |
| ·The Morpho-syntax Feature of Adjective Embedded words and Language Islands | 第36-37页 |
| ·Some Exceptional Linguistic Phenomena | 第37-38页 |
| ·Suggested Findings | 第38-40页 |
| Chapter Five Discussion | 第40-49页 |
| ·Features of Code-switching in Microblog | 第40-41页 |
| ·Yu’s Adaptation and Code-switching in Microblog | 第41-49页 |
| ·Code-switching in Microblog and Adaptation to Linguistic Reality | 第42-44页 |
| ·Code-switching in Microblog and Adaptation to Mental Motivation | 第44-47页 |
| ·Code-switching in Microblog and Adaptation to Social Conventions | 第47-49页 |
| Chapter Six Conclusion | 第49-52页 |
| ·Brief Summary of the Research | 第49-50页 |
| ·Limitations and Suggestions of the Research | 第50-51页 |
| ·Applications | 第51-52页 |
| Bibliography | 第52-55页 |
| Appendix I | 第55-63页 |
| 攻读学位期间发表的论文 | 第63-64页 |
