| Abstract | 第1-6页 |
| 摘要 | 第6-7页 |
| Contents | 第7-10页 |
| Introduction | 第10-15页 |
| Chapter One Literature Review | 第15-36页 |
| ·The Origin of Code-switching Research | 第15-16页 |
| ·Definitions and Classifications of Code-switching | 第16-20页 |
| ·Differences between Code-switching and the Relevant Terms | 第20-24页 |
| ·Code-switching and Borrowing | 第21-23页 |
| ·Code-switching and Code-mixing | 第23-24页 |
| ·Developments of Code-switching Research | 第24-25页 |
| ·Existing Approaches to the Analysis of Code-switching | 第25-32页 |
| ·The Sociolinguistic Approach | 第26-28页 |
| ·The Psychological Approach | 第28-29页 |
| ·The Grammatical Approach | 第29-30页 |
| ·The Conversational Approach | 第30-31页 |
| ·The Pragmatic Adaptation Approach | 第31-32页 |
| ·Previous Researches on Teacher’s Classroom Code-switching | 第32-36页 |
| ·Researches on the Functions of Teacher’s Code-switching | 第33页 |
| ·Researches on the Switching Mechanism of Teacher’s Code-switching | 第33-34页 |
| ·Researches on the Switching Strategy of Teacher’s Code-switching | 第34-36页 |
| Chapter Two Theoretical Framework | 第36-48页 |
| ·Theoretical Basis of the Present Study | 第36-41页 |
| ·Adaptation Theory and Adaptive Model | 第36-40页 |
| ·Classroom Discourse Analysis Theory | 第40-41页 |
| ·Internal Mechanisms and External Conditions of Code-switching | 第41-48页 |
| ·The Internal Mechanisms | 第41-45页 |
| ·The External Conditions | 第45-48页 |
| Chapter Three Methodology of the Study | 第48-65页 |
| ·Research Questions of the Research Design | 第48-49页 |
| ·Conceptual Framework of the Research Design | 第49-53页 |
| ·Research Methods of the Research Design | 第53-56页 |
| ·Selection of the Research Participants | 第56-61页 |
| ·Participants of Classroom Recording and Observation | 第56-57页 |
| ·Participants of Teacher Interview | 第57-59页 |
| ·Participants of Student Questionnaire | 第59-61页 |
| ·Data Collection Method | 第61-63页 |
| ·Classroom Video Recording | 第61-62页 |
| ·Classroom Observation and Paper Recording | 第62页 |
| ·Teacher Interview and Student Questionnaire | 第62-63页 |
| ·The Processing and Analysis of Data Collection | 第63-65页 |
| Chapter Four Discussion of the Study | 第65-103页 |
| ·Description of the Characteriartics of Teachers’ Code-switching in Classroom | 第65-79页 |
| ·Description on Pattern and Frequency | 第65-68页 |
| ·Description on Structural Approach | 第68-70页 |
| ·Description on Functional Approach | 第70-72页 |
| ·Description on Maintenance | 第72-74页 |
| ·Description on Influencing Factors | 第74-79页 |
| ·Existing Problems of Teacher’s Code-switching | 第79-83页 |
| ·Incorrect Use of English/Chinese Code-switching | 第79-81页 |
| ·Unmarked Use of English/Chinese Code-switching | 第81-82页 |
| ·Misusing of English/Chinese Code-switching | 第82-83页 |
| ·Effective Principles for Teacher’s Classroom Code-switching | 第83-98页 |
| ·The Adaptation Principle | 第84-95页 |
| ·The Priority-of-Target Language Principle | 第95-96页 |
| ·The Timely and Right-amount Principle | 第96-97页 |
| ·The Marked Mother Tongue Using Principle | 第97-98页 |
| ·Theoretical Speculation and Implications | 第98-103页 |
| Conclusion | 第103-106页 |
| Bibliography | 第106-110页 |
| Appendix | 第110-113页 |
| Acknowledgements | 第113页 |
