| 摘要 | 第1-7页 |
| Abstract | 第7-13页 |
| Chapter 1 Introduction | 第13-17页 |
| ·The Problem | 第14-15页 |
| ·Research Motivations and Objectives | 第15-17页 |
| ·Motivations | 第15-16页 |
| ·Objectives | 第16-17页 |
| Chapter 2 Theoretical Framework and Related Literature | 第17-36页 |
| ·Theoretical Framework | 第17-21页 |
| ·Critical Period Hypothesis | 第17-21页 |
| ·Language Environment | 第21-23页 |
| ·General Introduction | 第21-22页 |
| ·Non-Macro Language Environment | 第22-23页 |
| ·Related Literature | 第23-36页 |
| ·Main Theories in Child Language Acquisition | 第23-24页 |
| ·Early Second Language Acquisition Research | 第24-26页 |
| ·Scholars Who Studied First Language Acquisition | 第26-29页 |
| ·Scholars Who Studied Age in SLA | 第29-31页 |
| ·Scholars Who Studied Input in SLA | 第31-33页 |
| ·Scholars Who Studied SLA in practice | 第33-34页 |
| ·Other Scholars | 第34-36页 |
| Chapter 3 Method | 第36-41页 |
| ·Research Process | 第36-39页 |
| ·Situation 1 | 第36-37页 |
| ·Situation 2 | 第37-38页 |
| ·Situation 3 | 第38-39页 |
| ·The Table to be Filled-in | 第39-41页 |
| Chapter 4 Results | 第41-46页 |
| ·The Results and Analysis Made in Chapter 3 | 第41-43页 |
| ·The Relationship between Age and Acquisition | 第43页 |
| ·The Relationship between Environment and Acquisition | 第43-44页 |
| ·Comparison of the Learners | 第44-45页 |
| ·Conclusion | 第45-46页 |
| Chapter 5 Discussion | 第46-51页 |
| ·Research Questions | 第46页 |
| ·What a Young Child Really Learn | 第46页 |
| ·The Average Quality of English Teacher and Language Environment | 第46页 |
| ·Differences between SLA and Bilingual | 第46-47页 |
| ·Discussion | 第47-48页 |
| ·Theoretical Significance | 第48-49页 |
| ·Practical Significance | 第49-50页 |
| ·Problems and Difficulties Encountered | 第50-51页 |
| Chapter 6 Conclusion | 第51-54页 |
| ·Summary | 第51-52页 |
| ·Validity and Reliability | 第52页 |
| ·Limitations and Further Research | 第52-54页 |
| References | 第54-58页 |
| Published Papers | 第58-59页 |
| Acknowledgements | 第59页 |
