| Abstract | 第3-4页 |
| 摘要 | 第5-6页 |
| Contents | 第6-8页 |
| Chapter One Introduction | 第8-10页 |
| 1.1 Research background | 第8页 |
| 1.2 Significance and purpose of this research | 第8-9页 |
| 1.3 Organization of this research | 第9-10页 |
| Chapter Two Literature Review | 第10-25页 |
| 2.1 Vocabulary knowledge | 第10-14页 |
| 2.1.1 Richards’ assumptions on knowing a word | 第10-11页 |
| 2.1.2 Nation’s framework of vocabulary knowledge | 第11-13页 |
| 2.1.3 Laufer’s framework of vocabulary knowledge | 第13-14页 |
| 2.1.4 Henrikson’s framework of vocabulary knowledge | 第14页 |
| 2.2 Definition of breadth and depth of vocabulary knowledge | 第14-15页 |
| 2.3 Research on breadth of vocabulary knowledge | 第15-19页 |
| 2.4 Research on depth of vocabulary knowledge | 第19-23页 |
| 2.5 Research on the relationship between breadth and depth of vocabulary knowledge | 第23-25页 |
| Chapter Three Research Methodology | 第25-29页 |
| 3.1 Research questions | 第25页 |
| 3.2 Subjects | 第25页 |
| 3.3 Instruments | 第25-27页 |
| 3.3.1 Vocabulary levels test | 第25-26页 |
| 3.3.2 Word association test | 第26-27页 |
| 3.4 Research procedure | 第27页 |
| 3.5 Data collection and analysis | 第27-29页 |
| Chapter Four Results and Discussion | 第29-42页 |
| 4.1 The overall picture of breadth and depth of vocabulary knowledge of freshmen and juniors | 第29-31页 |
| 4.2 Differences in 5 frequency levels of breadth of vocabulary knowledge between freshmen and juniors | 第31-33页 |
| 4.3 Differences in scores on 3 lexical categories of breadth of vocabulary knowledge between freshmen and juniors | 第33-34页 |
| 4.4 The relationship between breadth, depth of vocabulary knowledge and reading comprehension | 第34-37页 |
| 4.5 The relationship between 5 word frequency levels of vocabulary breadth and reading comprehension | 第37-42页 |
| Chapter Five Conclusion | 第42-46页 |
| 5.1 Major findings | 第42-43页 |
| 5.2 Pedagogical implications | 第43-45页 |
| 5.3 Limitations and suggestions for further studies | 第45-46页 |
| Bibliography | 第46-51页 |
| Appendix I 词汇量测试 | 第51-54页 |
| Appendix II 词汇深度测试 | 第54-57页 |
| Appendix III阅读理解测试 | 第57-61页 |
| Acknowledgements | 第61-62页 |
| 在读研期间公开发表论文（著）及科研情况 | 第62页 |
