| Acknowledgements | 第5-6页 |
| Abstract | 第6-8页 |
| 摘要 | 第9-13页 |
| 1. Introduction | 第13-16页 |
| 1.1 Background of the study | 第13页 |
| 1.2 Objectives and significance | 第13-14页 |
| 1.3 Organization of the thesis | 第14-16页 |
| 2. Literature Review | 第16-29页 |
| 2.1 An introduction of network catchwords | 第16-21页 |
| 2.1.1 Definition of network catchwords | 第16-18页 |
| 2.1.2 Classification and features of network catchwords | 第18-21页 |
| 2.2 Previous studies on network catchwords | 第21-26页 |
| 2.2.1 The studies abroad | 第21-23页 |
| 2.2.2 The studies at home | 第23-26页 |
| 2.3 Understanding news event-based network catchwords | 第26-28页 |
| 2.3.1 Classifications of news event-based catchwords | 第26页 |
| 2.3.2 Features of news event-based catchwords | 第26-27页 |
| 2.3.3 Spreading rules of news event-based catchwords | 第27-28页 |
| 2.4 Summary | 第28-29页 |
| 3. Theoretical Framework | 第29-41页 |
| 3.1 Origin and development of Conceptual Integration Theory | 第29-31页 |
| 3.1.1 Researches on CIT abroad | 第29-30页 |
| 3.1.2 Researches on CIT in China | 第30-31页 |
| 3.2 Content of Conceptual Integration Theory | 第31-40页 |
| 3.2.1 Composition of CIT Model | 第32-36页 |
| 3.2.2 Types of Integration Networks | 第36-39页 |
| 3.2.3 Superiority of CIT | 第39-40页 |
| 3.3 Summary | 第40-41页 |
| 4. News Event-based Catchwords Interpretation from the Perspective of CIT | 第41-66页 |
| 4.1 A D escription of News Event-based Chinese Catchwords | 第41-47页 |
| 4.1.1 Overview of the news-event based catchwords | 第41-43页 |
| 4.1.2 Classifications of news event-based catchwords | 第43-47页 |
| 4.2 Conceptual integration in news event-based catchwords | 第47-51页 |
| 4.2.1 Cross-space mapping | 第47-49页 |
| 4.2.2 Component processes of integration | 第49-50页 |
| 4.2.3 Compression of vital relations | 第50-51页 |
| 4.3 Case study of news event-based catchwords from the perspective of CIT | 第51-58页 |
| 4.3.1 The content of news event-based catchwords | 第51-53页 |
| 4.3.2 The formation of news event-based catchwords | 第53-58页 |
| 4.4 Integration networks analysis of news event-based catchwords | 第58-66页 |
| 4.4.1 Single integration networks in news event-based catchwords | 第58-59页 |
| 4.4.2 Mirror integration networks in news event-based catchwords | 第59-61页 |
| 4.4.3 Single-scope networks in news event-based catchwords | 第61-63页 |
| 4.4.4 Double-scope networks in news event-based catchwords | 第63-66页 |
| 5. Conclusion | 第66-70页 |
| 5.1 Major findings | 第66页 |
| 5.2 Implications | 第66-68页 |
| 5.3 Limitations and suggestions | 第68-70页 |
| Bibliography | 第70-71页 |
