| Acknowledgements | 第1-4页 |
| 摘要 | 第4-5页 |
| Abstract | 第5-8页 |
| Chapter 1 Introduction | 第8-13页 |
| ·Significance of the Study | 第8-9页 |
| ·Background of the Study | 第9-10页 |
| ·Research Questions | 第10-11页 |
| ·Approaches and Methods | 第11-13页 |
| Chapter 2 Arbitrariness and Motivation of Polysemy | 第13-23页 |
| ·Definition of Polysemy | 第13页 |
| ·Polysemy and Homonymy | 第13-14页 |
| ·Theory of Arbitrariness | 第14-16页 |
| ·Traditional (Mainly Structuralism) Study of Polysemy | 第16-18页 |
| ·Challenges to the Traditional Study of Polysemy | 第18-20页 |
| ·Motivation of polysemy | 第20-23页 |
| ·Theoretical Foundation :Cognitive Lingustics | 第20-21页 |
| ·Psychological Basis: Experimentalism | 第21-23页 |
| Chapter 3 Analysis of Motivations of Polysemy from Cognitive Perspective | 第23-51页 |
| ·Fundamental Theory :Categorization and Prototype Theory | 第23-31页 |
| ·Polysemy and Cognitive Categorization | 第28-31页 |
| ·Three Major Motivations of polysemy | 第31-51页 |
| ·Metaphor | 第31-41页 |
| ·Classical View of Metaphor | 第31-33页 |
| ·Cognitive View of Metaphor | 第33页 |
| ·Three Types of Conceptual Metaphor | 第33-36页 |
| ·Three Main Features of Metaphor | 第36-39页 |
| ·Polysemy and Metaphor | 第39-41页 |
| ·Metonymy | 第41-43页 |
| ·Polysemy and Metonymy | 第43页 |
| ·Image Schemata | 第43-51页 |
| ·Polysemy and Image schema | 第46-51页 |
| Chapter 4 Revelation to the Teaching of Polysemes | 第51-67页 |
| ·Learning Problems and Research on Learning Problems | 第51-56页 |
| ·Learning Problems | 第51-52页 |
| ·Research on Learning Problems | 第52-56页 |
| ·Research Limitations | 第56-57页 |
| ·Revelation to the Teaching of Polysemes | 第57-67页 |
| ·Prototypes and Priorities | 第57-61页 |
| ·Introduction of Metonymy as the Fundamental Process of Polysemization | 第61页 |
| ·Introduction of Metaphor as the Main Process of Polysemization | 第61-67页 |
| ·Cultivation of Students' Metaphorical Competence | 第62-67页 |
| Chapter 5 Conclusion | 第67-69页 |
| Bibliography | 第69-73页 |
| Appendix I | 第73-76页 |
| Appendix II | 第76-78页 |
