| 摘要 | 第8-9页 |
| Abstract | 第9-10页 |
| 1 Introduction | 第11-14页 |
| 1.1 The Background of This Research | 第11-12页 |
| 1.2 Purpose and Significance of the Study | 第12-13页 |
| 1.3 The Organization of This Thesis | 第13-14页 |
| 2 Literature Review | 第14-20页 |
| 2.1 Previous Studies on Third Language Acquisition | 第14-17页 |
| 2.1.1 Previous Studies Abroad | 第14-15页 |
| 2.1.2 Previous Studies at Home | 第15-17页 |
| 2.2 Previous Studies on Third Language Acquisition from the Perspective of DynamicSystems Theory | 第17-18页 |
| 2.2.1 Previous Studies Abroad | 第17页 |
| 2.2.2 Previous Studies at Home | 第17-18页 |
| 2.3 Previous Studies on Third Language Acquisition of Yanbian Korean Minorities | 第18-20页 |
| 3 Theoretical Foundation | 第20-27页 |
| 3.1 An Introduction to Third Language Acquisition | 第20-22页 |
| 3.1.1 Definition of Third Language Acquisition | 第20页 |
| 3.1.2 Differences Between Third Language Acquisition and Second LanguageAcquisition | 第20-22页 |
| 3.2 An Introduction to Dynamic Systems Theory | 第22-27页 |
| 3.2.1 Definition of Dynamic Systems Theory | 第22-24页 |
| 3.2.2 Characteristics of Dynamic Systems Theory | 第24-27页 |
| 4 Methodology | 第27-30页 |
| 4.1 Research Questions | 第27页 |
| 4.2 Research Participants | 第27-28页 |
| 4.3 Research Instruments | 第28页 |
| 4.4 Research Procedures | 第28-29页 |
| 4.5 Data Collection | 第29-30页 |
| 5 Results and Discussion | 第30-38页 |
| 5.1 The Proficiency of Third Language Acquisition of Yanbian Korean Primary Students | 第30-31页 |
| 5.2 The Influence of Family Backgrounds on Third Language Acquisition | 第31-35页 |
| 5.2.1 The Influence of Parents' Social Class on Third Language Acquisition | 第31-33页 |
| 5.2.2 The Influence of Parents' Educational Level on Third Language Acquisition | 第33-35页 |
| 5.3 The Influence of Motivation on Third Language Acquisition | 第35-36页 |
| 5.4 The Correlation Between Family Backgrounds and Motivation in Third LanguageAcquisition | 第36-38页 |
| 6 Conclusion | 第38-44页 |
| 6.1 Major Findings | 第38-39页 |
| 6.2 Suggestions to Third Language Acquisition of Yanbian Korean Primary Students | 第39-42页 |
| 6.2.1 Suggestions to Parents | 第39-40页 |
| 6.2.2 Suggestions to Teachers | 第40-42页 |
| 6.3 Implications | 第42-43页 |
| 6.4 Limitations and Suggestions for Future Study | 第43-44页 |
| Acknowledgements | 第44-45页 |
| References | 第45-49页 |
| Appendix | 第49-53页 |
| Papers Published in the Period of Ph. M. Education | 第53页 |
