| 摘要 | 第5-7页 |
| Abstract | 第7-8页 |
| Abbreviations | 第11-14页 |
| Chapter 1 Introduction | 第14-18页 |
| 1.1 Research background | 第14-16页 |
| 1.2 Purpose and significance of the research | 第16页 |
| 1.3 Organization of the thesis | 第16-18页 |
| Chapter 2 Literature Review | 第18-35页 |
| 2.1 Linguistic features and quality of writing | 第18页 |
| 2.2 Lexical features and quality of writing | 第18-24页 |
| 2.2.1 Influence of lexical features on L2 writing | 第18-21页 |
| 2.2.2 Indices for lexical features | 第21-23页 |
| 2.2.3 Tools for lexical indices measurement | 第23-24页 |
| 2.3 Syntactic features and quality of writing | 第24-29页 |
| 2.3.1 Influence of syntactic features on L2 writing | 第24-27页 |
| 2.3.2 Indices for syntactic features | 第27-28页 |
| 2.3.3 Tool for syntactic indices measurement | 第28-29页 |
| 2.4 Cohesive features and quality of writing | 第29-33页 |
| 2.4.1 Influence of cohesive features on L2 writing | 第30-31页 |
| 2.4.2 Indices of cohesive features | 第31-32页 |
| 2.4.3 Tool for cohesive indices measurement | 第32-33页 |
| 2.5 Interaction between lexical features, syntactic features and cohesive features | 第33-34页 |
| 2.6 Summary | 第34-35页 |
| Chapter 3 Research Methodology | 第35-41页 |
| 3.1 Research questions | 第35-36页 |
| 3.2 Participants | 第36页 |
| 3.3 Data collection | 第36-37页 |
| 3.4 Instruments | 第37-39页 |
| 3.4.1 Coh-Metrix 3.0 | 第37-38页 |
| 3.4.2 L2 Syntactic Complexity Analyzer | 第38-39页 |
| 3.5 Data analysis | 第39-41页 |
| Chapter 4 Results and Discussion | 第41-68页 |
| 4.1 The development of linguistic features | 第41-59页 |
| 4.1.1 The development of lexical features | 第41-48页 |
| 4.1.2 The development of syntactic features | 第48-53页 |
| 4.1.3 The development of cohesive features | 第53-59页 |
| 4.2 The internal relationship between the indices within each type of linguistic features | 第59-63页 |
| 4.2.1 The internal relationship between the indices within lexical features | 第59-61页 |
| 4.2.2 The internal relationship between the indices within syntactic features | 第61-62页 |
| 4.2.3 The internal relationship between the indices within cohesive features | 第62-63页 |
| 4.3 The overall relationship between the indices of three types of linguistic features | 第63-66页 |
| 4.3.1 The relationship between the indices of lexical features and syntactic features | 第63-64页 |
| 4.3.2 The relationship between the indices of lexical features and cohesive features | 第64-65页 |
| 4.3.3 The relationship between the indices of syntactic features and cohesive features | 第65-66页 |
| 4.4 Summary | 第66-68页 |
| Chapter 5 Conclusion | 第68-71页 |
| 5.1 Major findings of the study | 第68-69页 |
| 5.2 Implications of the study | 第69-70页 |
| 5.3 Limitations of the study and suggestions for further research | 第70-71页 |
| References | 第71-77页 |
| Appendixes | 第77-93页 |
| 在校期间研究成果及发表的学术论文 | 第93-94页 |
| Acknowledgements | 第94页 |
