| Acknowledgements | 第6-7页 |
| 摘要 | 第7-9页 |
| Abstract | 第9-11页 |
| Chapter One Introduction | 第14-21页 |
| 1.1 Background study | 第14-16页 |
| 1.2 Objective of this study | 第16页 |
| 1.3 Significance of this study | 第16-21页 |
| Chapter Two Literature Review | 第21-44页 |
| 2.1 Introduction | 第21页 |
| 2.2 Vocabulary knowledge | 第21-28页 |
| 2.2.1 What is a word? | 第21-25页 |
| 2.2.2 Three dimensions of vocabulary knowledge | 第25-27页 |
| 2.2.3 Relationship between productive and receptive vocabulary size | 第27-28页 |
| 2.3 Measuring receptive vocabulary knowledge | 第28-32页 |
| 2.4 Measuring productive vocabulary knowledge | 第32-39页 |
| 2.4.1 Measuring controlled productive vocabulary | 第32-33页 |
| 2.4.2 Measuring free prodtictive vocabulary | 第33-39页 |
| 2.5 Measuring lexical depth | 第39-40页 |
| 2.6 The relationship between lexical proficiency and quality of writing | 第40-42页 |
| 2.6.1 Quality of writing | 第40-41页 |
| 2.6.2 The relationship between lexical proficiency and quality of writing | 第41-42页 |
| 2.7 Study about tools for measuring vocabulary in China | 第42-44页 |
| Chapter Three Zipf's Law | 第44-52页 |
| 3.1 Introduction | 第44-45页 |
| 3.2 Explanation of Zipf's Law | 第45-46页 |
| 3.3 Consequence of Zipf's Law on LFP measuring vocabulary size | 第46-50页 |
| 3.4 Application of the mathematical model to vocabulary size estimates | 第50-52页 |
| Chapter Four Research Design and Its Implementation | 第52-68页 |
| 4.0 Hypothesis and research questions | 第52页 |
| 4.1 Framework of analysis | 第52-53页 |
| 4.2 Design of the study | 第53-55页 |
| 4.3 Calculation process of using Zipf's Law | 第55-60页 |
| 4.4 Results and discussion | 第60-68页 |
| 4.4.1 Result of the first round of test | 第60-61页 |
| 4.4.2 Result of the second round of test | 第61-64页 |
| 4.4.3 The third round of test | 第64-65页 |
| 4.4.4 Discussion | 第65-68页 |
| Chapter Five Conclusion and Implications | 第68-71页 |
| 5.1 Conclusion | 第68-69页 |
| 5.2 Implications for studies of vocabulary in China | 第69-70页 |
| 5.2.1 Implication for researchers | 第69-70页 |
| 5.2.2 Implication for teachers | 第70页 |
| 5.3 Limitations of the study | 第70-71页 |
| References | 第71-77页 |
| Appendix A | 第77-78页 |
| Appendix B Five Topic-given Essays | 第78-80页 |
| Appendix C General Service List | 第80-87页 |
