| Acknowledgement | 第1-6页 |
| 摘要 | 第6-7页 |
| Abstract | 第7-11页 |
| Chapter 1 Introduction | 第11-17页 |
| ·General Description of Second Language Acquisition | 第11-14页 |
| ·The Definition of Second Language Acquisition | 第11-12页 |
| ·The Overview of Second Language Acquisition | 第12-14页 |
| ·Age Factor in Second Language Acquisition | 第14-17页 |
| Chapter 2 General Theories of Age Factors in SLA | 第17-46页 |
| ·Main Theories of Age | 第17-21页 |
| ·Brain Plasticity Theory | 第17-18页 |
| ·Critical Period Hypothesis | 第18-20页 |
| ·The Opponent Argument | 第20-21页 |
| ·The Overview of Related Research | 第21-40页 |
| ·Rate of Learning | 第22-26页 |
| ·Route of Learning | 第26-28页 |
| ·Achievement in Foreign Language Learning | 第28-38页 |
| ·Achievement and Research in China | 第38-40页 |
| ·Significance of Further Study | 第40-46页 |
| ·Practical Problems | 第40-43页 |
| ·Practical Significance | 第43-46页 |
| Chapter 3 Age and Second Language Learning | 第46-66页 |
| ·Comparison between L1 Acquisition and SLA | 第46-54页 |
| ·Differences between L1 Acquisition and SLA | 第47-49页 |
| ·Similarities between L1 Acquisition and SLA | 第49-54页 |
| ·The Similarities between Children and Adults | 第54-58页 |
| ·The Differences between Children and Adults in SLA | 第58-66页 |
| ·Developmental Factors | 第61-63页 |
| ·Cognitive Differences | 第63-64页 |
| ·Affective Differences | 第64-66页 |
| Chapter 4 Research on University Students | 第66-76页 |
| ·The Circumstances of Research | 第66-69页 |
| ·Subjects | 第67-68页 |
| ·Instruments | 第68-69页 |
| ·The Data Analysis | 第69-71页 |
| ·The Enlightenment of Age Factor | 第71-76页 |
| ·Implications for University Teaching | 第71-74页 |
| ·Implications for Children Teaching | 第74-76页 |
| Chapter 5 Conclusion | 第76-78页 |
| Works Cited | 第78-81页 |
| Appendix A | 第81-84页 |
| Appendix B | 第84-94页 |
| 攻读硕士学位期间发表的论文和取得的科研成果 | 第94页 |
