| ACKNOWLEDGEMENTS | 第5-6页 |
| ABSTRACT | 第6-8页 |
| 摘要 | 第9-15页 |
| CHAPTER ONE GENERAL INTRODUCTION | 第15-19页 |
| 1.1 Research Orientation | 第15-16页 |
| 1.2 Rationale of the Present Study | 第16-17页 |
| 1.3 Key Research Questions of the Present Study | 第17页 |
| 1.4 Outline of the Thesis | 第17-19页 |
| CHAPTER TWO LITERATURE REVIEW | 第19-35页 |
| 2.1 Definitions of Code-switching | 第19-21页 |
| 2.2 Types of Code-switching | 第21-22页 |
| 2.3 Approaches to Code-switching | 第22-27页 |
| 2.3.1 The Sociolinguistic Approach | 第22-24页 |
| 2.3.2 The Grammatical Approach | 第24-25页 |
| 2.3.3 The Psycholinguistic Approach | 第25页 |
| 2.3.4 The Conversational Approach | 第25-26页 |
| 2.3.5 The Pragmatic Approach | 第26-27页 |
| 2.4 Overview of Related Studies on Classroom Code-switching | 第27-31页 |
| 2.4.1 Different Opinions on Code-switching in Language TeachingClassroom | 第27-28页 |
| 2.4.2 Related Studies on Classroom Code-switching Abroad | 第28-30页 |
| 2.4.3 Related Studies on Classroom Code-switching in China | 第30-31页 |
| 2.5 Academic Classroom Code-switching | 第31-32页 |
| 2.5.1 Definition of Academic Classroom | 第31页 |
| 2.5.2 Characteristics of Academic Classroom | 第31-32页 |
| 2.6 Summary | 第32-35页 |
| CHAPTER THREE VERSCHUEREN’S LINGUISTIC ADAPTATION THEORY AND ANADAPTATION MODEL IN ACADEMIC CLASSROOMS | 第35-43页 |
| 3.1 Verschueren’s Linguistic Adaptation Theory | 第35-39页 |
| 3.1.1 Making Choices | 第36页 |
| 3.1.2 Three Properties of Language in Adaptation | 第36-37页 |
| 3.1.3 Four Angles of Language in Adaptation | 第37-39页 |
| 3.2 The Realization of Adaptation Theory in the Present Study | 第39-41页 |
| 3.3 Summary | 第41-43页 |
| CHAPTER FOUR METHODOLOGY AND DATA COLLECTION | 第43-47页 |
| 4.1 Participants | 第43-44页 |
| 4.2 Instruments | 第44-45页 |
| 4.2.1 The Recordings | 第44-45页 |
| 4.2.2 The Interview | 第45页 |
| 4.3 Data Collection | 第45-47页 |
| CHAPTER FIVE FINDINGS | 第47-71页 |
| 5.1 Attitudes towards Teachers’ Code-switching in Academic Classrooms | 第47-51页 |
| 5.1.1 Students’ Attitudes towards Teachers’ Code-switching in AcademicClassrooms | 第47-48页 |
| 5.1.2 Teachers’ Attitudes towards Code-switching in AcademicClassrooms | 第48-50页 |
| 5.1.3 Visiting Scholars’ Attitudes towards Teachers’ Code-switching inAcademic Classrooms | 第50-51页 |
| 5.1.4 Summing up | 第51页 |
| 5.2 Distribution of Teachers’ Code-switching in Academic Classrooms | 第51-55页 |
| 5.2.1 Intra-sentential Code-switching | 第52页 |
| 5.2.2 Inter-sentential Code-switching | 第52-54页 |
| 5.2.3 Tag Switching | 第54页 |
| 5.2.5 Summing up | 第54-55页 |
| 5.3 Code-switching in Academic Classrooms as Realization of Adaptation | 第55-71页 |
| 5.3.1 Teachers’ Code-switching in Academic Classrooms as Adaptation tothe Social World | 第55-61页 |
| 5.3.2 Teachers’ Code-switching in Academic Classrooms as Adaptation tothe Mental World | 第61-67页 |
| 5.3.3 Teachers’ Code-switching in Academic Classrooms as Adaptation tothe Physical World | 第67-69页 |
| 5.3.4 Summing up | 第69-71页 |
| CHAPTER SIX CONCLUSION | 第71-77页 |
| 6.1 Major Findings | 第71-74页 |
| 6.2 Significance | 第74-75页 |
| 6.3 Limitations | 第75-77页 |
| REFERENCES | 第77-81页 |
| APPENDICES | 第81-87页 |
| Appendix A | 第81-82页 |
| Appendix B | 第82-83页 |
| Appendix C | 第83-84页 |
| Appendix D | 第84-87页 |
