| 摘要 | 第1-6页 |
| Abstract | 第6-8页 |
| Table of Contents | 第8-10页 |
| Figures | 第10-11页 |
| Chapter One Introduction | 第11-14页 |
| ·Purpose of This Study | 第11页 |
| ·Research Methodology and Data Collection | 第11-12页 |
| ·Organization of This Thesis | 第12-14页 |
| Chapter Two Review of Previous Research on Polysemy | 第14-20页 |
| ·Introduction | 第14页 |
| ·Diachronic Research on Polysemy | 第14-17页 |
| ·Definition and Classification of Polysemy | 第14-15页 |
| ·Diachronic Research Traditions | 第15-17页 |
| ·Perspective of Discourse and Cognition | 第17-18页 |
| ·Summary | 第18-20页 |
| Chapter Three Inner Motivations for Polysemous Words | 第20-29页 |
| ·Introduction | 第20页 |
| ·Motivations for Polysemous Words | 第20-27页 |
| ·Diachronic Effects under the Identical Socio-cultural Environment | 第22-23页 |
| ·Polysemous Trend under the Contextual Constraints in Synchronic Dimension | 第23-24页 |
| ·Construal of Non-Regular Polysemous Words | 第24-25页 |
| ·Polysemy Based on Prototype Theory | 第25-26页 |
| ·Metaphoric-Metonymic Mechanism of Cognitive Thought | 第26-27页 |
| ·Lexicon's Self-Polysemization | 第27页 |
| ·Summary | 第27-29页 |
| Chapter Four Discourse-Polyseme-Construal Model | 第29-43页 |
| ·Introduction | 第29页 |
| ·Polysemous Network within the Discourse Coherence | 第29-30页 |
| ·Constraints of Discourse Coherence on the Constural of Polysemous Words | 第30-32页 |
| ·Meaning-Decision of a Polysemous Word by Cognitive Construal | 第32-34页 |
| ·Theory and Application of Discourse-Polyseme-Construal Model | 第34-42页 |
| ·Theoretical Construction of Ecological Model of Three-element Construal | 第34-37页 |
| ·Application of Ecological Model of Three-element Construal and Case Study | 第37-42页 |
| ·Summary | 第42-43页 |
| Chapter Five Implications and Application of This Study | 第43-46页 |
| ·Theoretical Implications | 第43页 |
| ·Practical Applications | 第43-46页 |
| ·Applications in Practical Translation | 第44页 |
| ·Applications in TEFL | 第44页 |
| ·Applications in Lexicography | 第44-46页 |
| Chapter Six Conclusion | 第46-48页 |
| ·Findings of This Study | 第46页 |
| ·Limitations of the Study and Prospects for Future Research | 第46-48页 |
| Bibliography | 第48-52页 |
| Acknowledgments | 第52-53页 |
| 攻读硕士学位期间发表的学术论文 | 第53页 |
