Acknowledgements
摘要
ABSTRACT
Table of Contents
List of Tables and Figures
Chapter One Introduction
1.1 Research background
1.2 Significance and Purpose of the study
1.3 Organization of the paper
Chapter Two Literature Review
2.1 Modality and Modal Verbs
2.1.1 Modality
2.1.2 Classification of Modal Verbs
2.2 Modal Verbs in Academic Writing
2.3 Previous Studies on Modal Verbs
2.3.1 Previous Studies abroad
2.3.2 Previous Studies at home
Chapter Three Methodology
3.1 Research Questions
3.2 Corpora
3.3 Research Proeedure
Chapter Four Results and Discussion
4.1 Frequency Features of modal verbs
4.2 Collocation Features of High Frequency Modal Verbs
4.2.1 The Collocation Features of Can
4.2.2 The Collocation Features of Will
4.2.3 The Collocation Features of Could
4.2.4 The Collocation Features of May
Chapter Five Conclusion
5.1 Major Findings
5.2 Pedagogical implications
5.3 Limitations and suggestions for further studies
References
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