| Abstract | 第1-8页 |
| 摘要 | 第8-9页 |
| List of Abbreviations | 第9-10页 |
| List of Tables and Figures | 第10-11页 |
| Chapter One Introduction | 第11-14页 |
| ·The background of this study | 第11-12页 |
| ·The significance of this study | 第12-13页 |
| ·The objective of this study | 第13-14页 |
| Chapter Two Literature Review | 第14-22页 |
| ·Theoretical background: the researches on cohesion theory | 第14-17页 |
| ·Researches abroad | 第14-16页 |
| ·Researches at home | 第16-17页 |
| ·Researches on lexical cohesion in writing | 第17-22页 |
| ·Researches abroad | 第17-20页 |
| ·Researches at home | 第20-22页 |
| Chapter Three Theoretical Framework | 第22-33页 |
| · | 第22-30页 |
| ·Text, texture, tie and cohesion | 第22-23页 |
| ·Cohesion and coherence | 第23页 |
| ·Types of cohesion | 第23-30页 |
| ·Contrastive Interlanguage Analysis (CIA) | 第30-33页 |
| ·The definition of interlanguage and its characteristics | 第30-31页 |
| ·Contrastive Interlanguage Analysis (CIA) | 第31-33页 |
| Chapter Four Methodology | 第33-38页 |
| ·Research questions | 第33页 |
| ·Subjects | 第33-34页 |
| ·Instruments | 第34-35页 |
| ·CLEC | 第34-35页 |
| ·SPSS | 第35页 |
| ·Research procedures | 第35-37页 |
| ·The lexical cohesive ties | 第35-36页 |
| ·The tagging of the lexical ties and its principles | 第36-37页 |
| ·Data collection and analysis | 第37-38页 |
| Chapter Five Results and Discussion | 第38-57页 |
| ·Result and discussion for research question one: the most commonly and least used lexical cohesive ties in CET4 and CET6 writings respectively | 第38-39页 |
| ·Result and discussion for research question two: the differences in number of lexical cohesive in between CET4 and CET6 writings | 第39-54页 |
| ·A contrast of total number of ties between CET4 and CET6 samples | 第39-41页 |
| ·Detailed discussion of lexical cohesion in CET4 and CET6 samples | 第41-54页 |
| ·Result and discussion for research question three: a contrast in types of lexical cohesive ties between CET4 and CET6 writings | 第54-57页 |
| Chapter Six Conclusion | 第57-60页 |
| ·Major findings | 第57-58页 |
| ·Pedagogic implications | 第58-59页 |
| ·Limitation | 第59-60页 |
| References | 第60-65页 |
| Appendix Ⅰ: An example of tagged CET4 samples | 第65-67页 |
| Appendix Ⅱ: An example of tagged CET6 samples | 第67-69页 |
| Appendix Ⅲ: The raw data of CET4 samples | 第69-70页 |
| Appendix Ⅳ: The raw data of CET6 samples | 第70-71页 |
| Acknowledgements | 第71页 |
