| ACKNOWLEDGEMENTS | 第1-7页 |
| 摘要 | 第7-9页 |
| ABSTRACT | 第9-13页 |
| Chapter 1 Introduction | 第13-16页 |
| ·Motivation for the Study | 第13-14页 |
| ·Objectives and Significance of the Study | 第14-15页 |
| ·Structure of the Thesis | 第15-16页 |
| Chapter 2 Literature Review of Vocabulary Teaching | 第16-26页 |
| ·A Brief Review of Vocabulary | 第16-19页 |
| ·The Definition of Vocabulary | 第16-17页 |
| ·Vocabulary Knowledge | 第17-18页 |
| ·Vocabulary Knowledge:Breadth and Depth | 第18页 |
| ·Vocabulary Knowledge:Receptive and Productive | 第18-19页 |
| ·Review of Vocabulary Teaching | 第19-26页 |
| ·Historical Survey of Vocabulary Teaching Methods | 第19-22页 |
| ·Current Trends in Vocabulary Teaching | 第22-24页 |
| ·English Vocabulary Teaching in China | 第24-26页 |
| Chapter 3 The Prototype Category Theory and Basic-level Categories | 第26-32页 |
| ·Category and Categorization | 第26-27页 |
| ·The Classical Theory of Categorization | 第27-28页 |
| ·Family Resemblance | 第28-29页 |
| ·The Prototype Category Theory | 第29-30页 |
| ·Levels of Categorization | 第30-32页 |
| Chapter 4 Polysemy in Cognitive Linguistics | 第32-49页 |
| ·Polysemy | 第32-37页 |
| ·Definition of Polysemy | 第32-33页 |
| ·Distinction between Polysemy and Homonymy | 第33页 |
| ·Processes of Polysemization | 第33-35页 |
| ·Traditional Approaches to Polysemy | 第35-37页 |
| ·Polysemy in Prototype Category Theory | 第37-43页 |
| ·Cognitive Assumptions on Semantics | 第37-38页 |
| ·Cognitive Domains for Meaning Understanding | 第38-41页 |
| ·Polysemy in Prototype Category Theory | 第41-43页 |
| ·Cognitive Mechanisms | 第43-49页 |
| ·Metaphor | 第44-46页 |
| ·Metonymy | 第46-49页 |
| Chapter 5 Applying the Major Findings of Polysemy Study Based on Prototype Category Theory to College English Vocabulary Teaching | 第49-65页 |
| ·Significance and Feasibility | 第49页 |
| ·A Tentative Model Suggested for English Vocabulary Teaching | 第49-56页 |
| ·Guiding Principles | 第49-51页 |
| ·A Tentative Model Suggested for English Vocabulary Teaching | 第51-56页 |
| ·Implications for College English Vocabulary Teaching | 第56-65页 |
| ·Giving Priority to Words' Prototypical Meaning | 第56-57页 |
| ·Laying Emphasis on Explaining the Semantic Link between the Lexical Items of Polysemous Words | 第57-60页 |
| ·Applying Conceptual Metaphor Theory to Polysemy Teaching | 第60-62页 |
| ·Attaching Importance to Basic-level Category Terms | 第62-65页 |
| Chapter 6 Conclusion | 第65-67页 |
| ·Main Findings of the Thesis | 第65页 |
| ·Limitations of the Study | 第65-66页 |
| ·Suggestions for Further Study | 第66-67页 |
| BIBLIOGRAPHY | 第67-71页 |
