| Abstract | 第1-9页 |
| 中文摘要 | 第9-11页 |
| Introduction | 第11-14页 |
| Chapter One Literature Review | 第14-23页 |
| ·The Studies of Code-switching Abroad | 第14-18页 |
| ·The Sociolinguistic Studies of Code-switching | 第14-15页 |
| ·The Grammatical Studies of Code-switching | 第15-17页 |
| ·The Psycholinguistic Studies of Code-switching | 第17-18页 |
| ·The Pragmatical Studies of Code-switching | 第18页 |
| ·The Studies of Code-switching at Home | 第18-23页 |
| ·Introduction of Theories from Abroad | 第18-19页 |
| ·The Empirical Studies of Code-switching in China | 第19-23页 |
| Chapter Two Theoretical Framework | 第23-33页 |
| ·Code-switching | 第23-27页 |
| ·Definitions of Code and Code-switching | 第23-25页 |
| ·Types of Code-switching | 第25-27页 |
| ·Myers-Scotton's Markedness Model | 第27-30页 |
| ·Principle and Maxims of Markedness Model | 第27-29页 |
| ·The Markedness Model as The Rational Choice Model | 第29-30页 |
| ·The Relationship of Code-switching, Language Teaching and Cross-cultural Communication | 第30-33页 |
| Chapter Three Methodology | 第33-38页 |
| ·Research Questions | 第33页 |
| ·Subjects | 第33-35页 |
| ·Data | 第35-36页 |
| ·Data Collection | 第36-37页 |
| ·Data Analysis Method | 第37-38页 |
| Chapter Four Results and Discussions | 第38-60页 |
| ·Functions of Chinese-English Code-switching in Chinese Network Chat | 第38-53页 |
| ·Gap-filling Function | 第39-41页 |
| ·Fashion Function | 第41-43页 |
| ·Quotation Function | 第43-46页 |
| ·Euphemism Function | 第46-48页 |
| ·Economy Function | 第48-50页 |
| ·Language Skill Showing Function | 第50-51页 |
| ·Humor-creating Function | 第51-53页 |
| ·Differences between Males and Females in terms of the Functions of Chinese-English Code-switching | 第53-56页 |
| ·Causes of Chinese-English Code-switching in Chinese Network Chat | 第56-58页 |
| ·Causes that Encourage Subjects to Use the Identified Code-switching46 | 第56-57页 |
| ·Causes behind the Identified Differences between Males and Females47 | 第57-58页 |
| ·Major Findings | 第58-60页 |
| Chapter Five Implications | 第60-63页 |
| ·Implications for Teaching Chinese as a Foreign Language | 第60-61页 |
| ·Implications for Cross-cultural Communication | 第61-63页 |
| Conclusion | 第63-65页 |
| Bibliography | 第65-71页 |
| Appendix | 第71-85页 |
| Acknowledgements | 第85-86页 |
| Papers Published | 第86页 |
