| Acknowledgements | 第1-5页 |
| Abstract | 第5-7页 |
| 摘要 | 第7-9页 |
| Contents | 第9-11页 |
| List of Tables | 第11-12页 |
| Chapter one Introduction | 第12-17页 |
| ·Research Background | 第12-14页 |
| ·Necessity & Significance of the Study | 第14-15页 |
| ·Objectives of the Study | 第15-16页 |
| ·Structure of the Thesis | 第16-17页 |
| Chapter Two Literature Review | 第17-32页 |
| ·A Brief Introduction of Lexical Chunks | 第17-26页 |
| ·Definition and Classification of Lexical Chunks | 第18-22页 |
| ·Functions of Lexical Chunks | 第22-26页 |
| ·An Introduction of Business English Correspondence | 第26-32页 |
| ·Definition and Classification of Business EnglishCorrespondence | 第26-29页 |
| ·Functions of Business English Correspondence | 第29-30页 |
| ·Research on Lexical Chunks in Business English Correspondence | 第30-32页 |
| Chapter Three Methodology | 第32-40页 |
| ·Research Questions | 第32页 |
| ·Subjects | 第32-33页 |
| ·Instruments | 第33-34页 |
| ·Letter-writing Assignments | 第33页 |
| ·Interview | 第33-34页 |
| ·Tests | 第34页 |
| ·Data Collection & Analysis Procedures | 第34-40页 |
| Chapter Four Results and Discussion | 第40-54页 |
| ·Characteristics of the Use of Lexical Chunks in Business English Correspondence Writings | 第40-46页 |
| ·General Use of Lexical Chunks | 第40-43页 |
| ·General Situation of Using Lexical Chunks | 第43-44页 |
| ·The Frequency of Using Lexical Chunks | 第44-45页 |
| ·The Diversity of Using Lexical Chunks | 第45-46页 |
| ·The Relationship between Students' Use of Lexical Chunks and Their Business Correspondence Writing Proficiency | 第46-54页 |
| Chapter Five Conclusion | 第54-59页 |
| ·Findings of the Study | 第54-56页 |
| ·Pedagogical Implications of the Study | 第56-57页 |
| ·Limitations of the Study and Suggestions for Further Research | 第57-59页 |
| Works Cited | 第59-64页 |
| Appendices | 第64-69页 |
| Appendix A Three Letter Writing Samples of the Student | 第64-66页 |
| Appendix B BEC-vantage Writing Assessment | 第66-67页 |
| Appendix C Scores and Lexical Chunks in the Writings | 第67-69页 |
