文摘
英文文摘
声明
Acknowledgements
Chapter One Introduction
1.1 General description of the study
1.2 Significance of the study
1.3 Overall structure of the thesis
Chapter Two Literature Review
2.1 Definition of key terms
2.1.1 News discourse
2.1.2 Semantic Presupposition
2.1.3 Pragmatic presupposition
2.1.4 Presupposition triggers
2.1.5 Information structure
2.1.6 Informativeness Constraint
2.1.7 Register
2.2 Theoretical framework for the present study
2.2.1 Thematic structure and thematic progression patterns
2.2.2 Cohesion and coherence
2.3 Review of the previous studies on presupposition
2.3.1 Historical background
2.3.2 Three dominant views
2.3.3 Studies on presupposition at discourse level at home and abroad
Chapter Three Themes and Thematic Progression Patterns Realized Through Presupposition
3.1 Themes realized through presupposition
3.2 Thematic progression patterns realized through presupposition
3.2.1 T1→T2
3.2.2 R1→ T2
3.2.3 R1→R2
3.2.4 T1+R1→T2
Chapter Four Cohesion Achieved Through Presupposition
4.1 Reference
4.1.1 Third person pronouns
4.1.2 Demonstrative pronouns
4.1.3 Noun phrases of definite reference
4.1.4 Comparative
4.2 Ellipsis
4.3 Conjunction
Chapter Five Coherence Achieved Through Presupposition
Chapter Six Conclusion
6.1 Conclusions
6.2 Pedagogical implications
6.3 Limitations and suggestions
References