| Acknowledgements | 第1-6页 |
| 摘要 | 第6-7页 |
| Abstract | 第7-10页 |
| Chapter 1 Introduction | 第10-16页 |
| ·Research Background | 第10-12页 |
| ·Research Questions | 第12-13页 |
| ·Outline of the Thesis | 第13-16页 |
| Chapter 2 Literature Review | 第16-33页 |
| ·Definitions of Codeswitching | 第16-19页 |
| ·Classifications of Codeswitching | 第19-23页 |
| ·Review of Previous Studies on Codeswitching | 第23-33页 |
| ·Achievements in Western Countries | 第23-30页 |
| ·Research in China | 第30-33页 |
| Chapter 3 Description of the Conceptual Framework | 第33-46页 |
| ·Discussion of the Basis of the Framework | 第33-42页 |
| ·Problems of the Existing Studies on Codeswitching | 第34-36页 |
| ·Studying Codeswitching from Pragmatic Perspective | 第36-42页 |
| ·The Framework of the Present Study | 第42-46页 |
| Chapter 4 Empirical Study | 第46-52页 |
| ·Research Methodology of Codeswitching | 第46-48页 |
| ·Research Methodology of the Present Study | 第48-49页 |
| ·Data Collection | 第49-50页 |
| ·Data Analysis | 第50-52页 |
| Chapter 5 Pragmatic Adaptability of Teacher's English/Chinese Codeswitching | 第52-80页 |
| ·Linguistic Adaptation | 第52-54页 |
| ·Teacher's Codeswitching as Adaptation to the Linguistic Reality | 第54-60页 |
| ·Teacher's codeswitching as a means of linguistic adaptation | 第54-56页 |
| ·Analysis | 第56-60页 |
| ·Teacher's Codeswitching as Adaptation to the Teacher's Roles | 第60-67页 |
| ·Teacher's Roles | 第60-62页 |
| ·Analysis | 第62-67页 |
| ·Teacher's Codeswitching as Adaptation to the Psychological Intentions | 第67-77页 |
| ·Teacher's psychological intentions | 第67-68页 |
| ·Analysis | 第68-77页 |
| ·Discussions | 第77-80页 |
| Chapter 6 Conclusion | 第80-84页 |
| Works Cited | 第84-89页 |
| 攻读硕士学位期间发表的论文和取得的科研成果 | 第89页 |
