声明
摘要
Abstract
Contents
List of Tables,Diagrams and Figures
Chapter One Introduction
1.1 Research Background
1.2 Aims and Significance
1.3 Research Questions of the Study
1.4 The Structure of the Thesis
Chapter Two Literature Review
2.1 Research on Critical Discourse Analysis
2.1.1 Definition of Critical Discourse Analysis
2.1.2 Principles of Critical Discourse Analysis
2.1.3 Critical Discourse Analysis at Home and Abroad
2.2 Research on Debate
2.2.1 General Introduction of Debate
2.2.2 A Brief Review on Presidential Debate
Chapter Three Theoretical Foundation
3.1 Data
3.2 Theoretical Foundation
3.2.1 Systemic Functional Linguistics
3.2.2 Fairelough's Three-dimensional Theory
Chapter Four Critical Discourse Analysis of US Presidential Debate
4.1 Explanation of US Social Background
4.2 Description and Interpretation of US Presidential Debate
4.2.1 Ideational Metafunction:Transitivity Analysis
4.2.2 Interpersonal Metafunction
4.2.3 Textual Metafunction:Cohesion Analysis
Chapter Five Conclusions
5.1 Main Findings
5.2 Limitations and Suggestions
References
Appendix
Acknowledgements