| Abstract | 第3-4页 |
| 摘要 | 第5-8页 |
| Chapter One Introduction | 第8-12页 |
| 1.1 Research Background | 第8-9页 |
| 1.2 Research Significance | 第9-10页 |
| 1.2.1 Theoretical Significance | 第9页 |
| 1.2.2 Practical Significance | 第9-10页 |
| 1.3 Research Objectives | 第10页 |
| 1.4 Research Organization | 第10-12页 |
| Chapter Two Literature Review | 第12-24页 |
| 2.1 Theoretical Backgrounds | 第12-16页 |
| 2.1.1 Identity Theories | 第12-13页 |
| 2.1.2 Cultural Identity Theories | 第13-15页 |
| 2.1.3 Social Cultural Theories | 第15-16页 |
| 2.2 Research on Cultural Identities at Home and Abroad | 第16-23页 |
| 2.2.1 Research on Trilingual Learners' Cultural Identities at Home | 第16-19页 |
| 2.2.2 Research on Cultural Identities Abroad | 第19-23页 |
| 2.3 Critique of the Previous Studies | 第23-24页 |
| Chapter Three Research Design | 第24-29页 |
| 3.1 Research Questions | 第24页 |
| 3.2 Research Participants | 第24-25页 |
| 3.3 Research Instruments | 第25-27页 |
| 3.4 Research Procedure | 第27-29页 |
| Chapter Four Research Results | 第29-44页 |
| 4.1 The Results of the Questionnaire | 第29-34页 |
| 4.1.1 The Impacts of the Factor of Different Genders on Trilingual Learners' CulturalIdentity | 第29-30页 |
| 4.1.2 The Impacts of the Factor of Different Family Backgrounds on Trilingual Learners'Cultural Identity | 第30-31页 |
| 4.1.3 The Impacts of the Factor of English and Non-English Majors on Trilingual Learners'Cultural Identity | 第31-32页 |
| 4.1.4 The Impact of the Factor of Different Academic Degrees on Trilingual Learners'Cultural Identity | 第32-34页 |
| 4.2 The Results of the Interviews | 第34-44页 |
| 4.2.1 The Interviews of Trilingual Undergraduate Learners' Cultural Identity | 第34-39页 |
| 4.2.2 The Interviews of Trilingual Postgraduate Learners' Cultural Identity | 第39-44页 |
| Chapter Five Discussions of the Research Results | 第44-56页 |
| 5.1 The Discussions on the Construction of English Cultural Identity | 第44-46页 |
| 5.2 The Discussions on the Development of English Cultural Identity | 第46-56页 |
| 5.2.1 The Characteristics of Additive Cultural Identity | 第47-49页 |
| 5.2.2 The Characteristics of Subtractive Cultural Identity | 第49-50页 |
| 5.2.3 The Characteristics of Productive Cultural Identity | 第50-53页 |
| 5.2.4 The Characteristics of Disruptive Cultural Identity | 第53-56页 |
| Chapter Six Conclusion | 第56-60页 |
| 6.1 Major Findings | 第56-57页 |
| 6.2 Implications for English Learning in Ethnic Minority Areas | 第57-58页 |
| 6.3 Limitations of the Study | 第58-59页 |
| 6.4 Suggestions for Further Study | 第59-60页 |
| Bibliography | 第60-65页 |
| Appendix A | 第65-66页 |
| Appendix B | 第66-67页 |
| Acknowledgements | 第67-69页 |
| 附件 | 第69页 |
