| 摘要 | 第1-5页 |
| English Abstract | 第5-10页 |
| Introduction | 第10-14页 |
| ·Research Background | 第10-11页 |
| ·Significance of the Research | 第11页 |
| ·Methodology | 第11-12页 |
| ·Organization of the Thesis | 第12-14页 |
| Chapter 1 Previous Researches on Code-Switching Motivations and Code-switching in Classroom Teaching | 第14-26页 |
| ·Previous Researches on Code-switching Motivations | 第14-21页 |
| ·Gumperz’s Situational CS & Metaphorical CS | 第14-15页 |
| ·Myers-Scotton’s Markedness Mode | 第15-16页 |
| ·Giles’s Speech Accommodation Theory | 第16-18页 |
| ·Verschueren’s Adaptation Theory | 第18-21页 |
| ·Overview of Code-switching in Classroom Teaching | 第21-24页 |
| ·Characteristics of CS in Classroom Teaching | 第21-22页 |
| ·The Function Studies of CS in Classroom Teaching | 第22-23页 |
| ·The Communication Studies of CS in Classroom Teaching | 第23-24页 |
| ·Evaluation of the Previous Researches | 第24-26页 |
| Chapter 2 Research Methodology | 第26-32页 |
| ·Hypotheses | 第26页 |
| ·Research Subjects | 第26-28页 |
| ·Data Collection | 第28-30页 |
| ·Classroom Observation | 第28-29页 |
| ·Teachers’Interviews | 第29页 |
| ·Students’Language Attitude Questionnaire | 第29-30页 |
| ·Data Processing | 第30-32页 |
| Chapter 3 Results and Discussion | 第32-64页 |
| ·Linguistic Features of Teachers’Code-Switching | 第32-38页 |
| ·Types of Teachers’CS | 第32-33页 |
| ·Occurrence Frequency of Each Type of Teachers’CS | 第33-35页 |
| ·Forms of Teachers’CS | 第35-36页 |
| ·Occurrence Frequency of Each Form of Teachers’CS | 第36-38页 |
| ·Factors Influencing Teachers’CS | 第38-46页 |
| ·English Proficiency of the Students | 第38-40页 |
| ·Gender of the Teachers | 第40-41页 |
| ·Years of Teaching | 第41-43页 |
| ·Educational Background of the Teachers | 第43-44页 |
| ·Multivariate Analysis | 第44-46页 |
| ·Teachers’Adaptation Motivations for Code-switching | 第46-58页 |
| ·Adaptation to the Linguistic Reality | 第46-49页 |
| ·Adaptation to the Social Conventions | 第49-52页 |
| ·Adaptation to the Psychological Motivation | 第52-58页 |
| ·Students’Attitude Toward Teachers’CS | 第58-64页 |
| ·Students’Attitudes Toward Putonghua | 第58-59页 |
| ·Students’Attitudes Toward Dialect | 第59-60页 |
| ·Students’Attitudes Toward Three Forms of CS | 第60-62页 |
| ·Students’Ideal Classroom Languages | 第62-64页 |
| Chapter 4 Pedagogical Implications | 第64-67页 |
| ·Recognizing the Importance of Teachers’CS in English Classroom Teaching | 第64-65页 |
| ·Using Trilingual CS in a Proper Way in English Classroom Teaching | 第65-67页 |
| Conclusion | 第67-70页 |
| Major Findings of the Study | 第67-68页 |
| Limitations of the Study and Suggestions for Further Study | 第68-70页 |
| Works Cited | 第70-74页 |
| Acknowledgements | 第74-75页 |
| Appendix A: Questionnaire | 第75-78页 |
| Appendix B: Interview Outline | 第78-79页 |
| Appendix C: Selected Examples of CS | 第79-82页 |
| Informative Abstract in Chinese | 第82-85页 |
| Résuméand Publications since Entering the Program | 第85页 |
