| Acknowledgements | 第5-6页 |
| 摘要 | 第6-7页 |
| Abstract | 第7页 |
| Chapter 1 Introduction | 第10-13页 |
| 1.1 Background of the Study | 第10-11页 |
| 1.2 Significance of the Study | 第11-12页 |
| 1.3 Outline of the Study | 第12-13页 |
| Chapter 2 Literature Review | 第13-20页 |
| 2.1 Self-identity in Second Language Learning | 第13-16页 |
| 2.1.1 Theoretical Traditions of Self-identity | 第13-15页 |
| 2.1.2 Models of Self-identity Change | 第15-16页 |
| 2.2 English Learning Investment | 第16-19页 |
| 2.2.1 Investment and Motivation | 第17-18页 |
| 2.2.2 Investment and Self-identity | 第18-19页 |
| 2.3 Research Gaps | 第19-20页 |
| Chapter 3 Methodology | 第20-25页 |
| 3.1 Research Questions | 第20页 |
| 3.2 Instruments | 第20-21页 |
| 3.3 Participants | 第21-22页 |
| 3.4 Reliability and validity of the Scales | 第22-24页 |
| 3.5 Procedures | 第24-25页 |
| Chapter 4 Results and Analysis | 第25-47页 |
| 4.1 Chinese Study-abroad Students' Self-identity Changes | 第25-29页 |
| 4.2 The Impact of Personal Factors on Investment and Self-identity Changes | 第29-43页 |
| 4.2.1 The Impact of Personal Factors on Investment | 第29-37页 |
| 4.2.2 The Impact of Personal Factors on Self-identity Changes | 第37-43页 |
| 4.3 The Correlation between Investment and Self-identity Changes | 第43-47页 |
| Chapter 5 Conclusion | 第47-51页 |
| 5.1 Major Findings | 第47-49页 |
| 5.1.1 The Students' Self-identity Changes after Studying Abroad | 第47页 |
| 5.1.2 The Influence of Personal Difference on Investment and Self-identity Changes | 第47-49页 |
| 5.1.3 Findings about the Correlation between Investment and Self-identity Changes | 第49页 |
| 5.2 Limitations and Recommendations | 第49-51页 |
| Works Cited | 第51-55页 |
| 攻读硕士学位期间发表的论文和取得的科研成果 | 第55-56页 |
| Appendix | 第56-58页 |
