| 摘要 | 第1-6页 |
| Abstract | 第6-9页 |
| Table of Contents | 第9-11页 |
| Cha pter One Introduction | 第11-14页 |
| ·The Motivation of the Thesis | 第11-12页 |
| ·The Significance of the Thesis | 第12-13页 |
| ·The Organization of the Thesis | 第13-14页 |
| Chapter Two Literature Reviews of Cognitive Linguistics and Polysemy | 第14-20页 |
| ·Studies on Cognitive Linguistics | 第14-15页 |
| ·Studies on Polysemous Words Acquisition at Home and Abroad | 第15-17页 |
| ·Studies Abroad | 第15-16页 |
| ·Studies at Home | 第16-17页 |
| ·Polysemy and Homograph | 第17-20页 |
| Chapter Three Cognitive Mechanism on Meaning Extension of Polysemy | 第20-30页 |
| ·Introduction | 第20页 |
| ·Categorization and the Prototype Theory | 第20-23页 |
| ·Classical Category Theory | 第21-22页 |
| ·Prototypical Category Theory | 第22-23页 |
| ·Idealized Cognitive Model | 第23-26页 |
| ·The Prototype Theory on the Research of Polysemy | 第26-29页 |
| ·The Relationship among the Multiple Senses of a Polysemous Word | 第26页 |
| ·Generating of Core Meaning of Polysemy | 第26-27页 |
| ·Derivation of Non-prototypical Senses of Polysemous Words | 第27-29页 |
| ·Summary | 第29-30页 |
| Chapter Four Cognitive Motivations among Multiple Senses of Polysemy | 第30-56页 |
| ·Introduction | 第30页 |
| ·Motivation of Polysemy from the Perspective of Conceptual Metaphor | 第30-44页 |
| ·Definition of Conceptual Metaphor | 第30-32页 |
| ·Working Mechanism of Conceptual Metaphor | 第32-34页 |
| ·Main Characteristics of Conceptual Metaphor | 第34-36页 |
| ·Classification of Conceptual Metaphor | 第36-38页 |
| ·The Foundation of Building Concept Metaphor:Similarities | 第38-40页 |
| ·Motivation of Conceptual Metaphor to Analyze Polysemy | 第40-44页 |
| ·Motivation of Polysemy from the Perspective of Conceptual Metonymy | 第44-50页 |
| ·Definition of Conceptual Metonymy | 第45页 |
| ·The Nature of Conceptual Metonymy | 第45-47页 |
| ·Working Mechanism of Conceptual Metonymy | 第47-48页 |
| ·Metonymic Motivation of a Polysemous Word | 第48-50页 |
| ·Co-working of Conceptual Metaphor and Conceptual Metonymy | 第50-52页 |
| ·Interaction of Conceptual Metaphor and Conceptual Metonymy | 第50-51页 |
| ·Relationship Between the Two Mechanisms in Meaning Extension | 第51-52页 |
| ·Case Study of a Polysemous Word on Conceptual Metaphor and Metonymy | 第52-55页 |
| ·Summary | 第55-56页 |
| Chapter Five Conclusion | 第56-60页 |
| ·Major Findings of the Thesis | 第56-57页 |
| ·Implication of the Thesis | 第57-58页 |
| ·Limitation of the Thesis | 第58页 |
| ·Suggestions of the Thesis | 第58-60页 |
| Bibliography | 第60-66页 |
| 攻读硕士学位期间取得的科研成果 | 第66-67页 |
| Acknowledgements | 第67页 |
