| Introduction | 第1-12页 |
| I. Literature Review | 第12-19页 |
| ·Basic Definitions | 第12-14页 |
| ·Code | 第12页 |
| ·Code Switching and Code Mixing | 第12-14页 |
| ·Researches Involving Code Switching | 第14-17页 |
| ·Main Approaches to the Analysis of Code Switching | 第14-16页 |
| ·Researches on Code Switching in China | 第16-17页 |
| ·Researches on Classroom Code Switching | 第17-19页 |
| II. Discussion of the Investigation | 第19-23页 |
| ·Data source | 第19页 |
| ·Sampling Procedure | 第19-20页 |
| ·Data Collection Methodology | 第20-21页 |
| ·Classroom Observations | 第20页 |
| ·Student Questionnaires | 第20-21页 |
| ·Teacher Interviews | 第21页 |
| ·Data Analysis | 第21页 |
| ·Validity | 第21-23页 |
| III. Findings of the Investigation | 第23-32页 |
| ·Results of the Observation | 第23-25页 |
| ·The Amount of Chinese Used by Teachers in EFL Classroom | 第23-24页 |
| ·The Amount of Chinese Used by Students in EFL Classroom | 第24-25页 |
| ·Results of Student Questionnaires | 第25-28页 |
| ·Students'Awareness of Classroom English Chinese Code Switching | 第25-26页 |
| ·Students' Attitudes towards the Teachers' Classroom English Chinese Code Switching | 第26-28页 |
| ·Results of Teachers'Interview | 第28-30页 |
| ·Factors Governing the Performance of Classroom Code Switching | 第30-32页 |
| IV Discussion | 第32-51页 |
| ·Factors Governing Teachers' English Chinese Code Switching in Class | 第32-46页 |
| ·Objective Factors Governing the Teachers' English Chinese Code Switching in Class | 第33-44页 |
| ·Features of a Specific Course | 第33-39页 |
| ·Specific Purpose of Teaching and Learning in a Specific Period | 第39-41页 |
| ·Teachers' Language Proficiency and Experiences | 第41-42页 |
| ·Students' Language Proficiency | 第42-44页 |
| ·Subjective Factors Governing Teachers' English Chinese Code Switching in Class | 第44-46页 |
| ·Factors Governing Students' English Chinese Code Switching in Class | 第46-49页 |
| ·Attitudes toward English Chinese Code Switching in EFL Class | 第49-51页 |
| ·Students'Attitudes toward Classroom Code Switching | 第49-50页 |
| ·Teachers'Attitudes toward Classroom Code Switching | 第50-51页 |
| V Conclusion | 第51-55页 |
| ·Summary of the Findings | 第51-52页 |
| ·Implication of the Study | 第52-54页 |
| ·Limitation of the Study | 第54-55页 |
| Appendix (student Questionnaire ) | 第55-62页 |
| Bibliography | 第62-65页 |
