| Abstract | 第1-5页 |
| 摘要 | 第5-8页 |
| 1 Introduction | 第8-11页 |
| ·Study background | 第8-9页 |
| ·Objective of the study | 第9-10页 |
| ·Organization of the thesis | 第10-11页 |
| 2 Literature Review | 第11-28页 |
| ·Researches on traditional metaphors | 第11-13页 |
| ·The comparison theory | 第12页 |
| ·The substitution theory | 第12-13页 |
| ·The interaction theory | 第13页 |
| ·Researches on conceptual metaphor | 第13-21页 |
| ·Definitions of the conceptual metaphor | 第13-15页 |
| ·Main characteristics of conceptual metaphor | 第15-17页 |
| ·Working mechanism of conceptual metaphor | 第17-19页 |
| ·The classification of the conceptual metaphor | 第19-21页 |
| ·Researches on conceptual metaphor in political languages abroad and athome | 第21-28页 |
| ·Politics and metaphor | 第22-23页 |
| ·Related studies abroad | 第23-24页 |
| ·Related studies at home | 第24-25页 |
| ·The national leaders' campus speeches and metaphor | 第25-28页 |
| 3 Research Methodology | 第28-31页 |
| ·Research methodology and data collection | 第28-29页 |
| ·Research procedure | 第29-31页 |
| ·Conceptual metaphor identification | 第29页 |
| ·Conceptual metaphor interpretation | 第29-31页 |
| 4 Data Interpretation | 第31-58页 |
| ·Conceptual metaphors in American national leaders' speeches on campus | 第31-46页 |
| ·Human metaphor | 第33-35页 |
| ·Plant metaphor | 第35-38页 |
| ·Journey metaphor | 第38-42页 |
| ·Nature metaphor | 第42-44页 |
| ·Building metaphors | 第44-46页 |
| ·Conceptual metaphors in Chinese national leaders' speeches on campus | 第46-58页 |
| ·Human metaphor | 第48-50页 |
| ·Building metaphor | 第50-52页 |
| ·Journey metaphor | 第52-54页 |
| ·Nature metaphor | 第54-56页 |
| ·Plant metaphor | 第56-58页 |
| 5 Contrastive Analysis and Discussion | 第58-70页 |
| ·Contrastive analysis of the same conceptual metaphors in both politicaldiscourses | 第58-63页 |
| ·Similarities of the same conceptual metaphors | 第59-60页 |
| ·Differences of the similar conceptual metaphors | 第60-63页 |
| ·Distinctive conceptual metaphors in Chinese and American politicaldiscourses | 第63-66页 |
| ·Circle metaphor in Chinese discourses | 第63-64页 |
| ·Chess metaphor in Chinese discourses | 第64-65页 |
| ·Tie metaphor in American discourses | 第65-66页 |
| ·Drama metaphor in American discourses | 第66页 |
| ·Reasons for similarities and differences of conceptual metaphor in bothpolitical discourses | 第66-70页 |
| ·The reasons for the similarities in both discourses | 第67页 |
| ·The reasons for the differences in both discourses | 第67-70页 |
| 6 Conclusion | 第70-74页 |
| ·Findings of this study | 第70页 |
| ·Significance of this study | 第70-71页 |
| ·Limitations of this study | 第71-74页 |
| BIBLIOGRAPHY | 第74-77页 |
| ACKNOWLEDGEMENTS | 第77-78页 |
| 攻读硕士学位期间发表的论文 | 第78-81页 |
| APPENDIX Ⅰ | 第81页 |