| Abstract | 第1-12页 |
| Introduction | 第12-17页 |
| ·The problem | 第12-13页 |
| ·Aims and scope | 第13页 |
| ·Hypothesis and datum | 第13-15页 |
| ·Hypothesis | 第13页 |
| ·Datum | 第13-15页 |
| ·Organization of the dissertation | 第15-17页 |
| Chapter1 Spatial Prepositions | 第17-25页 |
| ·Prepositions and spatial prepositions in English | 第17-18页 |
| ·Literature review in spatial cognition | 第18-19页 |
| ·A brief summary of the traditional research in spatial perception | 第19-20页 |
| ·Space perception and spatial relationships in cognitive psychology | 第20-21页 |
| ·Space in cognitive linguistics | 第21-24页 |
| ·Spatial relationship and trajector/landmark | 第24-25页 |
| Chapter2 Polysemy | 第25-37页 |
| ·Polysemy | 第25页 |
| ·Polysemy and homonymy | 第25-26页 |
| ·Literature review on polysemy | 第26-32页 |
| ·Polysemy and semantic change: diachronic perspective in polysemy | 第26-28页 |
| ·Synchronic perspective in polysemy | 第28-32页 |
| ·Theory of Semantic field | 第29-30页 |
| ·Componential analysis | 第30-32页 |
| ·Evaluation of semantic field theory and componential analysis | 第32页 |
| ·Polysemy in cognitive linguistics | 第32-34页 |
| ·Researches of polysemy in China | 第34-36页 |
| ·Summary | 第36-37页 |
| Chapter3 Polysemous Categories | 第37-49页 |
| ·Category | 第37-39页 |
| ·Lexical categories | 第39-42页 |
| ·Image schemas and spatial lexical categories | 第42-43页 |
| ·Metaphorical extension | 第43-49页 |
| ·Metaphor and metonymy | 第44页 |
| ·Metaphor | 第44-47页 |
| ·Domains | 第45页 |
| ·Source domain and target domain in conceptual metaphors | 第45-46页 |
| ·Image schemas and the Invariance Principle in metaphorical mappings | 第46-47页 |
| ·Metonymy | 第47-49页 |
| Chapter4 Case Study: Over | 第49-65页 |
| ·Semantics of over | 第49页 |
| ·The protomeaning and its image schemas | 第49-55页 |
| ·Spatial meanings of over | 第55-59页 |
| ·Internal relationships of the spatial meanings denoted by over | 第59-61页 |
| ·Metaphorical extensions | 第61-64页 |
| ·Semantic network of over | 第64-65页 |
| Chapter5 Case Study: A Comparative Research | 第65-74页 |
| ·The semantics of above | 第65-69页 |
| ·The protomeaning and its image schemas | 第65-66页 |
| ·Spatial meanings of above | 第66页 |
| ·Metaphorical meanings | 第66-68页 |
| ·The network of above | 第68-69页 |
| ·The semantics of under | 第69-72页 |
| ·The protomeaning and its image schemas | 第69-70页 |
| ·Spatial meaning | 第70页 |
| ·Metaphorical meanings | 第70-71页 |
| ·The semantic network of under | 第71-72页 |
| ·A comparison between the networks of the words: over, above and under | 第72-74页 |
| ·A general comparison of the three semantic networks | 第72页 |
| ·Comparison between over and above | 第72-73页 |
| ·Comparison between over and under | 第73-74页 |
| Conclusion | 第74-77页 |
| ·Conclusion | 第74页 |
| ·Enlightenment of such an approach to vocabulary teaching and learning | 第74-75页 |
| ·Problems unsolved and further work | 第75-77页 |
| References | 第77-80页 |
