| Acknowledgements | 第1-9页 |
| Abstract | 第9-13页 |
| 内容摘要 | 第13-16页 |
| Chapter One Introduction | 第16-19页 |
| ·The Background of the Study | 第16-17页 |
| ·The Objectives and Significance | 第17页 |
| ·The Layout of the Thesis | 第17-19页 |
| Chapter Two Literature Review | 第19-24页 |
| ·Previous Studies on Polysemy | 第19-21页 |
| ·The Traditional Approach to Polysemy | 第19-20页 |
| ·The Cognitive Approach to Polysemy | 第20-21页 |
| ·Previous Studies on Body-Part Terms | 第21-23页 |
| ·Previous Studies on Back | 第23-24页 |
| Chapter Three Theoretical Foundation | 第24-36页 |
| ·Image Schema | 第24-26页 |
| ·Definition of Image Schema | 第24页 |
| ·Types and Main Features of Image Schema | 第24-25页 |
| ·Elements of Image Schema | 第25-26页 |
| ·Metaphor | 第26-29页 |
| ·Main Features of Metaphor | 第27页 |
| ·The Operational Mechanism of Metaphor | 第27-28页 |
| ·Three Types of Metaphor | 第28-29页 |
| ·Metonymy | 第29-33页 |
| ·Definition and Main Features of Metonymy | 第30-31页 |
| ·Types of Metonymy-Producing Relationships | 第31-33页 |
| ·Principles Governing the Selection of the Preferred Vehicle | 第33页 |
| ·Metaphtonymy | 第33-36页 |
| Chapter Four The Analysis of the Different Meanings of Back | 第36-103页 |
| ·The Original or Primary Meaning | 第36-40页 |
| ·The Meaning from Metaphorical mapping | 第40-77页 |
| ·Mapping from Body-Part Domain to Non-Body Domain | 第41-70页 |
| ·Mapping from Body-Part Domain to Concrete Domain | 第41-48页 |
| ·Mapping from Body-Part Domain to Space Domain | 第48-54页 |
| ·Mapping from Body-Part Domain to Time Domain | 第54-58页 |
| ·Mapping from Body-Part Domain to Action Domain | 第58-64页 |
| ·Mapping from Body-Part Domain to the Activity Domain of Abstract Things | 第64-65页 |
| ·Mapping from Body-Part Domain to Quantity Domain | 第65-66页 |
| ·Mapping from Body-Part Domain to Attribute Domain | 第66-70页 |
| ·Mapping from Non-Body Domain to Body-Part Domain | 第70-75页 |
| ·Mapping from Space Domain to Body-Part Domain | 第70-73页 |
| ·Mapping from Action Domain to Body-Part Domain | 第73-75页 |
| ·Mapping Between Two Organs Within Body-Part Domain | 第75-77页 |
| ·The Meaning from Metonymy | 第77-78页 |
| ·The Meaning from Metaphtonymy | 第78-86页 |
| ·Results of the Above Analysis and Some Discussions | 第86-103页 |
| ·An Overall View of Each Sense of Back Analyzed Above | 第86-93页 |
| ·Statistical Analysis and Discussions Based on the Analysis Above | 第93-103页 |
| ·Features of Semantic Image Extraction of the Back | 第93-98页 |
| ·Metaphor,Metonymy and Metaphtonymy | 第98页 |
| ·Image Schema | 第98-103页 |
| Chapter Five Conclusion | 第103-106页 |
| ·Major Findings and Implications | 第103-105页 |
| ·Limitations and Prospects for Further Research | 第105-106页 |
| References | 第106-110页 |
| Appendix | 第110-116页 |
