| Synopsis | 第1-8页 |
| Introduction | 第8-12页 |
| Research background | 第8-9页 |
| Objectives of the present study | 第9-10页 |
| Structure of the thesis | 第10-12页 |
| Chapter Ⅰ Literature Review | 第12-28页 |
| ·Several Basic Concepts | 第12-13页 |
| ·Definitions of Code | 第12页 |
| ·Definitions of Code-switching | 第12-13页 |
| ·Types of code-switching | 第13-16页 |
| ·Approaches to the analysis of code-switching | 第16-23页 |
| ·The sociolinguistic approach | 第17-18页 |
| ·The grammatical approach | 第18-19页 |
| ·The psycholinguistic approach | 第19-21页 |
| ·The conversational analysis (CA) approach | 第21-22页 |
| ·The pragmatic analysis approach | 第22-23页 |
| ·Researches on classroom code-switching | 第23-28页 |
| ·Some crosslingual teaching methods | 第24页 |
| ·Some intralingual teaching methods | 第24-25页 |
| ·Crosslingual or intralingual: evidence for code-switching in foreign language classrooms | 第25-28页 |
| Chapter Two Methodology | 第28-36页 |
| ·Review of related studies | 第28-30页 |
| ·Hypotheses | 第30-31页 |
| ·Methods | 第31-36页 |
| ·Sampling procedure | 第31-33页 |
| ·Materials, instruments and measurements | 第33-35页 |
| ·Procedures | 第35-36页 |
| Chapter 3 Data analysis and findings | 第36-61页 |
| ·Frequency analysis of the results of student questionnaires | 第36-46页 |
| ·Situations of teachers’code-switching in EFL classroom | 第36-42页 |
| ·Different aspects of college English teaching and learning | 第42-44页 |
| ·Influences of teachers’code-switching | 第44-45页 |
| ·Reasons for teachers’code-switching | 第45-46页 |
| ·Results of classroom recordings | 第46-57页 |
| ·Frequency analysis of teachers’code-switching | 第46-50页 |
| ·Correlation analysis of teachers’code-switching | 第50-53页 |
| ·Analysis of teachers’code-switching in the classroom as a means of linguistic adaptation | 第53-57页 |
| ·Results of teachers’interviews | 第57-59页 |
| ·Summary of the survey, recordings and interviews | 第59-61页 |
| Chapter 4 Pedagogical Implications | 第61-64页 |
| ·Summary of the findings | 第61页 |
| ·Pedagogical implications | 第61-64页 |
| Conclusion | 第64-67页 |
| Bibliography | 第67-71页 |
| Appendix Ⅰ Student Questionnaire | 第71-73页 |
| Appendix Ⅱ Questions Used in Teacher Interviews | 第73-74页 |
| Abstract | 第74-77页 |
| 中文摘要 | 第77-79页 |
| Acknowledgement | 第79-80页 |
| 导师及作者简介 | 第80页 |
