| Acknowledgements | 第1-6页 |
| Abstract in Chinese | 第6-7页 |
| Abstract in English | 第7-9页 |
| Abbreviations | 第9-10页 |
| Chapter 1 Introduction | 第10-12页 |
| Chapter 2 Background of Lexical Cohesion | 第12-20页 |
| ·Theoretical Background | 第12-13页 |
| ·Definition and Classification of Lexical Cohesive Ties | 第13-17页 |
| ·Related Studies | 第17-18页 |
| ·Aims of the Thesis | 第18-20页 |
| Chapter 3 Functions of Lexical Cohesion in Writing | 第20-23页 |
| ·Function of Lexical Cohesion in Writing from Theoretical Perspectives | 第20-21页 |
| ·The Importance of Lexical Cohesion in English Writing | 第21-23页 |
| Chapter 4 The Present Research | 第23-29页 |
| ·Objects of the Research | 第23页 |
| ·Methods of the Research | 第23-24页 |
| ·Statistical Analysis of the Data | 第24-29页 |
| Chapter 5 Results of the Research | 第29-45页 |
| ·Major Findings | 第29-34页 |
| ·Simple Lexical Repetition and Writing Quality | 第29-32页 |
| ·Complex Repetition and Writing Quality | 第32页 |
| ·Synonyms and Writing Quality | 第32-33页 |
| ·Antonyms, General Words and Writing Quality | 第33-34页 |
| ·Summary of the Research | 第34页 |
| ·Enlightenment in Writing Teaching | 第34-37页 |
| ·Writing Requirements in Teaching Syllabuses at Senior High School in China and New English Curriculum Standards | 第35-36页 |
| ·Enlightenment in Textual Teaching | 第36-37页 |
| ·Enlightenment in Students’English Writing | 第37-43页 |
| ·Cultivating Students’Awareness of Using Lexical Cohesion | 第38-39页 |
| ·Some Problems Existing in Students’Compositions | 第38-39页 |
| ·Lexical Cohesion and Text | 第39页 |
| ·Some Suggestions for Improving Students’Writing Quality | 第39-43页 |
| ·Focus on the Teaching of Simple Lexical Repetition | 第40页 |
| ·Focus on the Teaching of Complex Lexical Repetition | 第40-41页 |
| ·Focus on the Teaching of Synonyms | 第41-42页 |
| ·Focus on the Teaching of Anonyms | 第42-43页 |
| ·Focus on the Teaching of General Words | 第43页 |
| ·Problems with Students in Using Lexical Cohesion and Their Solutions | 第43-45页 |
| Chapter 6 Conclusion | 第45-47页 |
| ·Main Contributions of the Research | 第45页 |
| ·Limitation of the Research | 第45-46页 |
| ·Suggestions for Future Researches | 第46-47页 |
| Bibliography | 第47-49页 |
| Appendix I | 第49-50页 |
| Appendix II | 第50-52页 |
| Appendix III | 第52-56页 |
| Publications during Postgraduate Program | 第56-57页 |
