| ABSTRACT | 第1-6页 |
| 中文摘要 | 第6-8页 |
| ACKNOWLEDGEMENTS | 第8-9页 |
| ABBREVIATIONS | 第9-12页 |
| TABLE OF CONTENTS | 第12-15页 |
| Chapter One Introduction | 第15-20页 |
| ·Research Background | 第15-17页 |
| ·Significance of the Research | 第17-18页 |
| ·Research Questions | 第18-19页 |
| ·Layout of the Research | 第19-20页 |
| Chapter Two Literature Review | 第20-39页 |
| ·Textual Features | 第20-30页 |
| ·Basic Textual Features | 第20页 |
| ·Grammatical Features | 第20-22页 |
| ·Cohesive Features | 第22-25页 |
| ·Lexical Features | 第25-30页 |
| ·A Computational Approach to Textual Features | 第30-38页 |
| ·The Computational Tool Coh-Metrix | 第31-33页 |
| ·Cohesive Indices in Coh-Metrix | 第33-35页 |
| ·Lexical Indices in Coh-Metrix | 第35-37页 |
| ·Syntactic Indices in Coh-Metrix | 第37页 |
| ·Basic Textual Indices in Coh-Metrix | 第37-38页 |
| ·Summary | 第38-39页 |
| Chapter Three Methodology | 第39-47页 |
| ·Text Collection | 第39-42页 |
| ·Writing Task | 第39-40页 |
| ·Holistic Writing Evaluation | 第40页 |
| ·Grouping | 第40-41页 |
| ·Spellings Correction | 第41-42页 |
| ·Collection of 441 Writing Texts | 第42页 |
| ·Text Processing | 第42页 |
| ·Tools | 第42-46页 |
| ·Coh-Metrix2.1 | 第43页 |
| ·Independent Samples T Test | 第43-44页 |
| ·Correlation | 第44-45页 |
| ·Multiple Regression | 第45-46页 |
| ·Summary | 第46-47页 |
| Chapter Four Data Analysis and Results | 第47-64页 |
| ·Textual Differences in High- and Low-Proficiency Writings | 第47-56页 |
| ·Differences in Basic Textual Indices | 第48-50页 |
| ·Differences in Cohesive Indices | 第50-52页 |
| ·Differences in Syntactic Complexity Indices | 第52-54页 |
| ·Differences in Lexical Diversity Indices | 第54页 |
| ·Differences in Word Frequency Indices | 第54-55页 |
| ·Differences in Readability Indices | 第55-56页 |
| ·Textual Features and Writing Proficiency | 第56-61页 |
| ·Basic Textual Features and Writing Proficiency | 第57-58页 |
| ·Cohesion and Writing Proficiency | 第58-59页 |
| ·Syntactic Complexity and Writing Proficiency | 第59页 |
| ·Lexical Diversity and Writing Proficiency | 第59-60页 |
| ·Word Frequency and Writing Proficiency | 第60页 |
| ·Readability and Writing Proficiency | 第60-61页 |
| ·Predictive Powers of Textual Features for Writing Proficiency | 第61-63页 |
| ·Summary | 第63-64页 |
| Chapter Five Discussion | 第64-72页 |
| ·Basic Textual Features and Writing Proficiency | 第64-65页 |
| ·Cohesive Features and Writing Proficiency | 第65-66页 |
| ·Syntactic Features and Writing Proficiency | 第66-67页 |
| ·Lexical Features and Writing Proficiency | 第67-68页 |
| ·Word Frequency and Writing Proficiency | 第68-69页 |
| ·Readability and Writing Proficiency | 第69-70页 |
| ·Summary | 第70-72页 |
| Chapter Six Conclusion | 第72-77页 |
| ·Major Findings | 第72-73页 |
| ·Implications of the Study | 第73-74页 |
| ·Limitations of the Study | 第74-75页 |
| ·Further Researches | 第75-77页 |
| REFERENCES | 第77-90页 |
| APPENDIX Ⅰ Writing Examples | 第90-91页 |
| APPENDIX Ⅱ Coh-Metrix2.1 Windows | 第91-92页 |
| APPENDIX Ⅲ Coh-Metrix2.1 Indices | 第92-95页 |
| 攻读学位期间主要成果目录 | 第95页 |
