声明
Contents
Abstract
摘要
List of Tables
List of Figures
Chapter One Introduction
1.1 Research background
1.2 Objectives of the present study
1.3 Research significance
1.4 Organization of the thesis
Chapter Two Literature Review
2.1 Previous studies on voice
2.1.1 Definitions of voice
2.1.2 Classifications of voice
2.2 Previous studies on voice in academic discourse
2.2.1 Charaeteristies of academic discourse
2.2.2 Voices in academic discourse
2.2.3 Various perspectives on voice studies
2.3 Summary
Chapter Three Theoretical Framework
3.1 Appraisal theory
3.1.1 Engagement system
3.1.2 Resources in engagement system
3.2 Metadiscourse
3.2.1 Theoretical development of metadiscourse
3.2.2 Metadiscourse in academic discourse
3.3 Summary
Chapter Four Research Methodology
4.1 Research questions
4.2 Research instrument
4.3 Corpus and data collection
4.3.1 Criteria for data selection
4.3.2 Data collection
4.3.3 Corpus annotation
4.4 Summary
Chapter Five Results and Discussion
5.1 Voice in academic discourse of different disciplines
5.1.1 Voice in Engineering
5.1.2 Voice in Linguistics
5.2 Similarities of voices between different disciplines
5.3 Differences of voices between different disciplines
5.4 Discussion of similarities and difierences
5.5 Multi-voice interaction in different disciplines
Chapter Six Conclusion
6.1 Major findings of the present study
6.2 Implications of the present research
6.3 Limitations and suggestions for further research
References
Appendix
Acknowledgements