| Acknowledgements | 第4-8页 |
| Abstract | 第8-9页 |
| 内容摘要 | 第10-12页 |
| Chapter One Introduction | 第12-16页 |
| 1.1 Background of the research | 第12-13页 |
| 1.2 Research questions and significance of the study | 第13-14页 |
| 1.3 Data collection and research method | 第14页 |
| 1.4 The overall structure of the paper | 第14-16页 |
| Chapter Two Literature review | 第16-29页 |
| 2.1 An overview of studies on puns | 第16-20页 |
| 2.1.1 The definition of puns | 第16-17页 |
| 2.1.2 The historical development of puns | 第17-19页 |
| 2.1.3 The classification of puns | 第19-20页 |
| 2.2 Previous studies on puns | 第20-26页 |
| 2.2.1 A rhetorical approach | 第20-21页 |
| 2.2.2 A semantic approach | 第21-23页 |
| 2.2.3 A pragmatic approach | 第23-24页 |
| 2.2.4 A cognitive approach | 第24-26页 |
| 2.3 Previous studies on the Olympic Games news headlines | 第26-27页 |
| 2.4 Summary | 第27-29页 |
| Chapter Three Theoretical framework | 第29-43页 |
| 3.1 The theoretical background of Conceptual Blending Theory | 第29-32页 |
| 3.1.1 Conceptual Metaphor Theory | 第29-31页 |
| 3.1.2 Mental Space Theory | 第31-32页 |
| 3.2 Conceptual Blending Theory | 第32-40页 |
| 3.2.1 The elements of conceptual blending | 第33-36页 |
| 3.2.1.1 Four spaces | 第33-35页 |
| 3.2.1.2 Mapping | 第35页 |
| 3.2.1.3 Selective projection | 第35-36页 |
| 3.2.1.4 Emergent structure | 第36页 |
| 3.2.2 The process of conceptual blending | 第36-37页 |
| 3.2.3 Types of conceptual blending networks | 第37-40页 |
| 3.2.3.1 Simplex networks | 第38页 |
| 3.2.3.2 Mirror networks | 第38-39页 |
| 3.2.3.3 Single-scope networks | 第39-40页 |
| 3.2.3.4 Double-scope networks | 第40页 |
| 3.3 Multiple blending | 第40-41页 |
| 3.4 Summary | 第41-43页 |
| Chapter Four An analysis of puns in the London Olympic Games news headlines from the perspective of Conceptual Blending Theory | 第43-74页 |
| 4.1 Classification of puns in the London Olympic Games news headlines | 第43-48页 |
| 4.1.1 Phonetic puns | 第44-45页 |
| 4.1.2 Semantic puns | 第45-46页 |
| 4.1.3 Grammatical puns | 第46-47页 |
| 4.1.4 Idiomatic puns | 第47-48页 |
| 4.2 Meaning construction process of puns in the London Olympic Games news headlines | 第48-64页 |
| 4.2.1 Phonetic puns in the London Olympic Games news headlines | 第49-54页 |
| 4.2.2 Semantic puns in the London Olympic Games news headlines | 第54-58页 |
| 4.2.3 Grammatical puns in the London Olympic Games news headlines | 第58-60页 |
| 4.2.4 Idiomatic puns in the London Olympic Games news headlines | 第60-64页 |
| 4.3 The cognitive mechanisms of interpreting puns in the London Olympic Games news headlines | 第64-66页 |
| 4.3.1 Conceptual blending | 第64-65页 |
| 4.3.2 Association by similarity | 第65-66页 |
| 4.4 The cognitive conditions of interpreting puns in London Olympic Games news headlines | 第66-70页 |
| 4.4.1 Similarity | 第66-68页 |
| 4.4.2 Context | 第68-70页 |
| 4.5 The cognitive functions of puns in the London Olympic Games news headlines | 第70-73页 |
| 4.5.1 Highlighting the theme of news and realizing the compelling value of news headlines | 第70-71页 |
| 4.5.2 Enhancing the readability and memorization of news headlines | 第71页 |
| 4.5.3 Stimulating imagination and achieving the guiding function of news headlines | 第71-72页 |
| 4.5.4 Facilitating the interpretation of news editors' attitudes toward Olympic athletes | 第72-73页 |
| 4.6 Summary | 第73-74页 |
| Chapter Five Conclusion | 第74-77页 |
| 5.1 Major findings of the study | 第74-75页 |
| 5.2 Limitations of the study and suggestions for future studies | 第75-77页 |
| References | 第77-82页 |
| Appendix | 第82页 |
