| Acknowledgments | 第4-5页 |
| Abstract | 第5-7页 |
| 摘要 | 第8-14页 |
| Chapter One Introduction | 第14-20页 |
| 1.1 Research Background | 第14-16页 |
| 1.2 Objectives of the Study | 第16页 |
| 1.3 Necessity and Significance of the Study | 第16-18页 |
| 1.4 Organization of the Study | 第18-20页 |
| Chapter Two Literature Review | 第20-41页 |
| 2.1 The Unaccusative Hypothesis | 第20-22页 |
| 2.2 Previous Studies of the Overpassivization of Unaccusative Verbs | 第22-38页 |
| 2.2.1 The Overpassivization Phenomenon | 第22-24页 |
| 2.2.2 Accounts of the Overpassivization of Unaccusative Verbs | 第24-38页 |
| 2.3 Originality of the Study | 第38-41页 |
| Chapter Three Research Methodology | 第41-46页 |
| 3.1 Research Questions | 第41-42页 |
| 3.2 Data Collection | 第42-43页 |
| 3.3 Procedures of the Study | 第43-46页 |
| Chapter Four Results and Discussion | 第46-67页 |
| 4.1 Frequencies of Overpassivization of Five-Group Unaccusative Verbs | 第46-50页 |
| 4.2 Causes of Overpassivization of Five-Group Unaccusative Verbs | 第50-61页 |
| 4.2.1 Causes of Overpassivization of Group One | 第50-52页 |
| 4.2.2 Causes of Overpassivization of Group Two | 第52-54页 |
| 4.2.3 Causes of Overpassivization of Group Three | 第54-56页 |
| 4.2.4 Causes of Overpassivization of Group Four | 第56-58页 |
| 4.2.5 Causes of Overpassivization of Group Five | 第58-60页 |
| 4.2.6 Summary | 第60-61页 |
| 4.3 Revisit of Chinese EFL Learners' Overpassivization of Unaccusative Verbs | 第61-65页 |
| 4.3.1 The Animacy | 第61-63页 |
| 4.3.2 The Agentivity | 第63-65页 |
| 4.4 Summary | 第65-67页 |
| Chapter Five Conclusion | 第67-72页 |
| 5.1 Summary of Major Findings | 第67-69页 |
| 5.2 Implications of the Study | 第69-70页 |
| 5.3 Limitations of the Study and Suggestions for Further Studies | 第70-72页 |
| References | 第72-76页 |
| Appendices | 第76-81页 |
| Publication | 第81页 |
