| Acknowledgements | 第4-5页 |
| Academic Achievements | 第5-6页 |
| 摘要 | 第6-7页 |
| Abstract (in Chinese and English) | 第7-8页 |
| Chapter One Introduction | 第12-16页 |
| 1.1 Research Background | 第12-13页 |
| 1.2 Research Aim and Significance | 第13-14页 |
| 1.3 Thesis Structure | 第14-16页 |
| Chapter Two Literature Review | 第16-31页 |
| 2.1 Multilingualism and Global Education | 第16-18页 |
| 2.1.1 Dimensionality of Multilingualism | 第16-17页 |
| 2.1.2 Demands and Influence of Global Education | 第17-18页 |
| 2.2 Basic Theories of Teacher Identity | 第18-20页 |
| 2.2.1 In the Eyes of Classical Teacher Identity | 第18-19页 |
| 2.2.2 In the Eyes of Constructivist Identity Theory | 第19-20页 |
| 2.3 Identity and Professional Development of Foreign Language Teacher | 第20-28页 |
| 2.3.1 Review fo Teacher Identity | 第21-26页 |
| 2.3.2 Identity of EFL Teachers | 第26-28页 |
| 2.4 Identity Crisis of L3 Teachers | 第28-31页 |
| Chapter Three Theoretical Framework and Research Design | 第31-40页 |
| 3.1 Theoretical Framework | 第31-33页 |
| 3.2 Research Design | 第33-40页 |
| 3.2.1 Research Questions | 第33页 |
| 3.2.2 Research Settings | 第33-36页 |
| 3.2.3 Research Subjects | 第36-38页 |
| 3.2.4 Research Methodologies | 第38-40页 |
| Chapter Four Results and Discussion | 第40-63页 |
| 4.1 From L3 Teaching to Faculty Adminstration: Louis' Compromise between Dream and Reality | 第40-49页 |
| 4.1.1 Louis's Biography | 第40-41页 |
| 4.1.2 Louis's Identity Reconstruction | 第41-48页 |
| 4.1.3 Future Confusion | 第48-49页 |
| 4.2 From L3 Teaching to Devoted Participation: Max's Proactive Adaption as a Marginal but Tired Staff | 第49-55页 |
| 4.2.1 Max's Story | 第49-50页 |
| 4.2.2 Max's Life as an L3 Teacher | 第50-54页 |
| 4.2.3 The Need of Interval | 第54-55页 |
| 4.3 From Teacher of English Majors to L3 Teacher: Ron's Occasional but Energetic Participation | 第55-59页 |
| 4.3.1 Ron' s Story | 第55-56页 |
| 4.3.2 Ron' s Life as an L3 Teacher | 第56-59页 |
| 4.3.3 Expectation for Future | 第59页 |
| 4.4 Discussion | 第59-63页 |
| 4.4.1 Different Types and Multiple Identities of L3 Teachers | 第60-61页 |
| 4.4.2 Factors Contributing to L3 Teachers' Identity Crisis | 第61页 |
| 4.4.3 The Sustainable Development of L3 Teachers | 第61-63页 |
| Chapter Five Conclusion | 第63-66页 |
| 5.1 Major Findings of the Study | 第63-64页 |
| 5.2 Research Limitations at Present and Future Possible Orientation | 第64-66页 |
| References | 第66-73页 |
| Appendices | 第73-85页 |
