| ACKNOWLEDGEMENT | 第1-5页 |
| 摘要 | 第5-7页 |
| ABSTRACT | 第7-15页 |
| CHAPTER ONE INTRODUCTION | 第15-18页 |
| ·Background of the Study | 第15-16页 |
| ·Purpose and Significance of the Study | 第16-17页 |
| ·Organization of the Thesis | 第17-18页 |
| CHAPTER TWO LITERATURE REVIEW | 第18-26页 |
| ·The Introduction of Interpersonal Meaning of Modality | 第18-22页 |
| ·Previous Research on Interpersonal Meaning of Modality Abroad | 第18-19页 |
| ·Previous Research on Interpersonal Meaning of Modality at Home | 第19-22页 |
| ·Review of Discourse Analysis | 第22-26页 |
| ·The Development of Discourse Analysis | 第23-24页 |
| ·Previous Research on Press Conference Discourse Abroad and at Home | 第24-26页 |
| CHAPTER THREE THEORETICAL FRAMEWORK | 第26-30页 |
| ·An Overview on Systemic Functional Grammar | 第26-27页 |
| ·Theory of Interpersonal Meaning | 第27-28页 |
| ·Theory of Halliday’s Modality System | 第28-30页 |
| CHAPTER FOUR METHODOLOGY | 第30-35页 |
| ·Research Questions | 第30页 |
| ·Data Collection | 第30-31页 |
| ·Perspectives of the Analysis | 第31-33页 |
| ·Modal Operator | 第31-33页 |
| ·Modal Adjunct | 第33页 |
| ·Metaphor of Modality | 第33页 |
| ·Approach and Method | 第33-35页 |
| CHAPTER FIVE RESULTS AND DISCUSSION | 第35-57页 |
| ·Comparison of Frequency of Modal Occurrence in American and ChineseCorpus | 第35-36页 |
| ·Comparison of Modal Operators in American and Chinese Corpus | 第36-44页 |
| ·Comparison of the Types of Modal Operators in the Two Corpus | 第36-42页 |
| ·Comparison of the Value of Modal Operators in the Two Corpus | 第42-44页 |
| ·Comparison of Modal Adjunct in American and Chinese Corpus | 第44-54页 |
| ·Comparison of Mood Adjunct in the Two Corpus | 第45-50页 |
| ·Comparison of Comment Adjunct in the Two Corpus | 第50-54页 |
| ·Comparison of Metaphors of Modality in American and Chinese Corpus | 第54-57页 |
| CHAPTER SIX CONCLUSION | 第57-61页 |
| ·Major Findings of the Study | 第57-59页 |
| ·Implications of the Findings | 第59-60页 |
| ·Limitations and Suggestions for Future Study | 第60-61页 |
| REFERENCES | 第61-63页 |
| 中文参考文献 | 第63-66页 |
| APPENDIX 1 | 第66-68页 |
| APPENDIX 2 | 第68-71页 |
| APPENDIX 3 | 第71-73页 |
| APPENDIX 4 | 第73-75页 |
| 作者简历 | 第75-77页 |
| 一、基本情况 | 第75页 |
| 二、学术论文 | 第75-77页 |
| 学位论文数据集 | 第77页 |
