| Acknowledgements | 第5-6页 |
| 摘要 | 第6-7页 |
| Abstract | 第7-8页 |
| List of Abbreviations | 第11-14页 |
| Chapter One Introduction | 第14-19页 |
| 1.1 Background of the Study | 第14-16页 |
| 1.2 Purpose of the Study | 第16页 |
| 1.3 Significance of the Study | 第16-17页 |
| 1.4 Organization of the Thesis | 第17-19页 |
| Chapter Two Literature Review | 第19-29页 |
| 2.1 Dependency Grammar | 第19-23页 |
| 2.1.1 Tesniere's Dependency Grammar | 第19-21页 |
| 2.1.2 Some Important Concepts in Dependency Grammar | 第21-23页 |
| 2.2 Syntactic Complexity | 第23-25页 |
| 2.2.1 Syntactic Complexity | 第23-24页 |
| 2.2.2 Previous Studies on Syntactic Complexity in L2 Writings | 第24-25页 |
| 2.3 Input Hypothesis | 第25-29页 |
| 2.3.1 Krashen's Input Hypothesis | 第25-26页 |
| 2.3.2 The Limitations of the Input Hypothesis | 第26-27页 |
| 2.3.3 The Applications of Input Hypothesis | 第27-29页 |
| Chapter Three Methodology | 第29-37页 |
| 3.1 Research Questions | 第29页 |
| 3.2 Participants | 第29-30页 |
| 3.3 Procedures of Data Collection | 第30-31页 |
| 3.3.1 Implementing Writing Tasks | 第30-31页 |
| 3.3.2 Data Selection and Sampling | 第31页 |
| 3.4 Construction of the Treebank | 第31-34页 |
| 3.4.1 Data Documentation | 第31-32页 |
| 3.4.2 Automatic POS and Dependency Relation Annotation | 第32页 |
| 3.4.3 Establishment of Syntactic Relation and Error Tagging System | 第32页 |
| 3.4.4 Manual Tagging and Modification | 第32-34页 |
| 3.5 Data Analysis | 第34-37页 |
| 3.5.1 Instruments | 第34-35页 |
| 3.5.2 Statistical Procedures | 第35-36页 |
| 3.5.3 Statistical Treatment of the Data | 第36-37页 |
| Chapter Four Some Quantitative Features of Dependency Grammar in L2 Writings | 第37-49页 |
| 4.1. Developmental Features of Mean Dependency Distance | 第37-40页 |
| 4.1.1 Description of Mean Dependency Distance at Different Grades | 第37-38页 |
| 4.1.2 Discussion on the Developmental Features of Mean Dependency Distance | 第38-40页 |
| 4.2 Developmental Features of Probability Distribution of Dependency Distance | 第40-45页 |
| 4.2.1 Description of Probability Distribution of Dependency Distance at Different Grades | 第40-44页 |
| 4.2.2 Discussion on the Probability Distribution of Dependency Distance | 第44-45页 |
| 4.3 Developmental Distribution of Absolute Dependency Distance | 第45-49页 |
| 4.3.1 Overall Developmental Distribution of Absolute Dependency Distance | 第45-46页 |
| 4.3.2 The Developmental Distribution of Adjacent Dependency and Other Dependencies(ADD>1) | 第46-47页 |
| 4.3.3 Discussion on the Developmental Distribution of Adjacent Dependency and OtherDependencies (ADD>1) | 第47-49页 |
| Chapter Five How Subjects, Objects, Adverbials and Attributes Influence Syntactic Complexity | 第49-64页 |
| 5.1 The MDD of Subjects, Objects, Adverbials and Attributes at Different Grades | 第49-51页 |
| 5.2 The Developmental Features of DD of Subjects at Different Grades | 第51-53页 |
| 5.3 The Developmental Features of DD of Objects at Different Grades | 第53-56页 |
| 5.4 The Developmental Features of DD of Adverbials at Different Grades | 第56-58页 |
| 5.5 The Developmental Features of DD of Attributes at Different Grades | 第58-61页 |
| 5.6 Discussion on How Subjects, Objects, Adverbials and Attributes InfluenceSyntactic Complexity | 第61-64页 |
| Chapter Six The Relationship between Input and Syntactic Output | 第64-68页 |
| 6.1 The Student Books Used at Schools | 第64-65页 |
| 6.2 The Relationship between the Syntactic Input from the Books and the Output | 第65-68页 |
| Chapter Seven Conclusions | 第68-73页 |
| 7.1 Summary of Major Findings | 第68-70页 |
| 7.2 Implications of the Study | 第70-71页 |
| 7.3 Limitations of the Study | 第71-72页 |
| 7.4 Suggestions for Further Studies | 第72-73页 |
| References | 第73-77页 |
| Appendix | 第77-89页 |
| Appendix Ⅰ | 第77-83页 |
| Appendix Ⅱ | 第83-86页 |
| Appendix Ⅲ | 第86-89页 |
