声明
CHAPTER ONE INTRODUCTION
1.1 Background of the Study
1.2 Aim and Significance of the Study
1.3 The Organization of the Thesis
CHAPTER TWO LITERATURE REVIEW
2.1 Theoretical Studies on Lexical Cohesion
2. 2 Empirical Studies on Lexical Cohesion
2. 3 Studies on Argumentative Writings
2.4 Summary
CHAPTER THREE METHODOLOGY
3.1 Research Questions
3.2 Data Collection
3.3 Data Analysis
3.4 Measurement of Repetition
3.5 Measurement of Bond
3.6 Measurement of Central Sentence and Marginal Sentence
CHAPTER THREE RESULTS AND DISCUSSION
4.1 Similarities and Differences of Lexical Repetition Patterns by Students at Different Proficiency Levels
4.2 Similarities and Differences of Bond Used by Students at Different Proficiency Levels
4.3 Similarities and Differences of Central Sentences and Marginal Sentences Used by Students at Different Proficiency Levels
CHAPTER FIVE CONCLUSION
5.1 Major Findings
5.2 Implications
5.3 Limitations and Suggestions
参考文献
Appendices
Appendix I
Appendix II Coding of the corpora
Appendix III
攻读学位期间取得的研究成果
致谢