| Abstract | 第1-6页 |
| 中文摘要 | 第6-10页 |
| Chapter 1 Introduction | 第10-13页 |
| ·The importance of the study of English prepositions | 第10-11页 |
| ·The purpose of the thesis | 第11-12页 |
| ·The outline of the thesis | 第12-13页 |
| Chapter 2 Literature Review | 第13-19页 |
| ·Quirk, et al’s study of prepositions | 第13-15页 |
| ·Langacker’s study of prepositions | 第15-17页 |
| ·Tyler and Evans’study of prepositions | 第17-18页 |
| ·Summary | 第18-19页 |
| Chapter 3 Theoretical Foundations | 第19-30页 |
| ·Prototype theory | 第19-21页 |
| ·The polysemy approach to prepositions | 第21-24页 |
| ·Conceptual structure | 第21-23页 |
| ·Embodied experience | 第23-24页 |
| ·Basic Concepts | 第24-29页 |
| ·Image schema | 第24-25页 |
| ·Metaphor | 第25-26页 |
| ·Metonymy | 第26-27页 |
| ·Trajector-landmark | 第27-28页 |
| ·The application of these concepts to a semantic analysis of under | 第28-29页 |
| ·Summary | 第29-30页 |
| Chapter 4 A Cognitive Analysis of the Preposition Under | 第30-57页 |
| ·The selection of under as the objective | 第30-31页 |
| ·The prototypical sense and image schema of under | 第31-36页 |
| ·The determination of the prototypical sense | 第31-32页 |
| ·The prototypical sense of under | 第32-34页 |
| ·The prototypical image schema of under | 第34-36页 |
| ·The spatial semantic extension of under | 第36-42页 |
| ·Sense (1): covered by or directly below something: UP-DOWN relation | 第37-39页 |
| ·Sense (2): passing below something from one side to the other: COVERING or IN-OUT relation | 第39-41页 |
| ·Sense (3): moving to a place that is below or covered by something: PATH relation | 第41-42页 |
| ·The non-spatial semantic extension of under | 第42-52页 |
| ·The extension from UP-DOWN relation | 第43-47页 |
| ·Sense (4): less than a particular number | 第43-44页 |
| ·Sense (5): in power | 第44-45页 |
| ·Sense (6): unconscious | 第45-46页 |
| ·Sense (7): affected or controlled by something | 第46-47页 |
| ·The extension from COVERING or IN-OUT relation | 第47-50页 |
| ·Sense (8): according to a particular agreement, law, etc. | 第48页 |
| ·Sense (9): using a particular name | 第48-49页 |
| ·Sense (10): where information is | 第49-50页 |
| ·Sense (11): in the condition or situation | 第50页 |
| ·The extension from PATH relation: sense (12): having something done to it | 第50-52页 |
| ·The semantic network | 第52-54页 |
| ·The semantic network of under | 第52-53页 |
| ·The nature of the semantic extension of prepositions | 第53-54页 |
| ·The implication for teaching | 第54-56页 |
| ·Summary | 第56-57页 |
| Chapter 5 Conclusion | 第57-59页 |
| ·Major findings | 第57-58页 |
| ·Limitations of this research and suggestions for future studies | 第58-59页 |
| References | 第59-62页 |
| Acknowledgement | 第62页 |
