| Abstract | 第1-7页 |
| 摘要 | 第7-11页 |
| Chapter One Introduction | 第11-18页 |
| ·Research purpose and significance | 第11页 |
| ·Literature review | 第11-13页 |
| ·Research scope and method | 第13-18页 |
| ·Research scope | 第13-17页 |
| ·Classification of languages | 第13-16页 |
| ·The statement of problems | 第16页 |
| ·Traditional standards of distinguishing pro-drop languages from non-pro-drop languages | 第16-17页 |
| ·Research method | 第17-18页 |
| Chapter Two Control in English, Chinese and Korean | 第18-52页 |
| ·Introduction to Control | 第18-21页 |
| ·Subject control | 第21-35页 |
| ·A brief introduction to Subject control | 第21页 |
| ·Subject control in English | 第21-24页 |
| ·Subject control in Chinese | 第24-28页 |
| ·Subject control in Korean | 第28-30页 |
| ·A comparative analysis of Subject control in English, Chinese and Korean | 第30-35页 |
| ·Object control | 第35-39页 |
| ·A brief introduction to Object control | 第35-36页 |
| ·Object control in English | 第36页 |
| ·Object control in Chinese | 第36-37页 |
| ·Object control in Korean | 第37-38页 |
| ·A comparative analysis of Object control in English, Chinese and Korean | 第38-39页 |
| ·Analyses of control in English, Chinese and Korean | 第39-50页 |
| ·PRO distribution in English | 第39-45页 |
| ·PRO distribution in Chinese | 第45-47页 |
| ·PRO distribution in Korean | 第47-50页 |
| ·A Comparative Analysis of PRO distribution in English, Chinese and Korean | 第50页 |
| ·Summary | 第50-52页 |
| Chapter Three A little pro from the perspective of Two Hypotheses | 第52-65页 |
| ·Introduction to pro | 第52-55页 |
| ·A brief introduction to Two Hypotheses | 第55-59页 |
| ·Hypothesis A | 第56页 |
| ·Hypothesis B | 第56-59页 |
| ·Null subjects in English from the perspective of Two Hypotheses | 第59-60页 |
| ·Testing Hypothesis A | 第60页 |
| ·Testing Hypothesis B | 第60页 |
| ·Null subjects in Chinese from the perspective of Two Hypotheses | 第60-62页 |
| ·Testing Hypothesis A | 第60-61页 |
| ·Testing Hypothesis B | 第61-62页 |
| ·Null subjects in Korean from the perspective of Two Hypotheses | 第62-63页 |
| ·Testing Hypothesis A | 第62页 |
| ·Testing Hypothesis B | 第62-63页 |
| ·The nature of Null Subjects in English, Chinese and Korean | 第63-64页 |
| ·Summary | 第64-65页 |
| Chapter Four Restrictions on the syntactic distribution characteristics of empty pronouns in English, Chinese and Korean | 第65-73页 |
| ·Introduction | 第65页 |
| ·Strong crossover | 第65-67页 |
| ·Strong crossover in English | 第65-66页 |
| ·Strong crossover in Chinese | 第66页 |
| ·Strong crossover in Korean | 第66-67页 |
| ·A comparative analysis of Strong crossover in English, Chinese and Korean | 第67页 |
| ·Subjacency | 第67-70页 |
| ·Subjacency in English | 第68页 |
| ·Subjacency in Chinese | 第68-69页 |
| ·Subjacency in Korean | 第69-70页 |
| ·A Comparative Analysis of Subjacency in English, Chinese and Korean | 第70页 |
| ·The Left Branch Condition | 第70-72页 |
| ·The Left Branch Condition in English | 第70页 |
| ·The Left Branch Condition in Chinese | 第70-71页 |
| ·The Left Branch Condition in Korean | 第71-72页 |
| ·A comparative analysis of The Left Branch Condition in English,Chinese and Korean | 第72页 |
| ·Summary | 第72-73页 |
| Chapter Five Conclusion | 第73-75页 |
| ·The major findings | 第73-74页 |
| ·Implications | 第74页 |
| ·Limitations and Recommendations | 第74-75页 |
| References | 第75-79页 |
| Acknowledgements | 第79-80页 |
| Appendix | 第80页 |
