| Acknowledgements | 第5-6页 |
| Abstract | 第6-7页 |
| 摘要 | 第8-14页 |
| Chapter One Introduction | 第14-18页 |
| 1.1 Background of the Study | 第14-15页 |
| 1.2 Focus of the Study | 第15页 |
| 1.3 Significance of the Study | 第15-16页 |
| 1.4 Research Questions | 第16页 |
| 1.5 Organization of the Thesis | 第16-18页 |
| Chapter Two Literature Review | 第18-34页 |
| 2.1 Chapter Overview | 第18页 |
| 2.2 Definitions of Key Terms | 第18-19页 |
| 2.2.1 Frequency Effects | 第18-19页 |
| 2.2.2 Teacher Written Feedback | 第19页 |
| 2.3 Theories Related with Frequency Effects | 第19-23页 |
| 2.3.1 Connectionism | 第19-20页 |
| 2.3.2 Behaviorism | 第20页 |
| 2.3.3 Cognitive Theory | 第20-22页 |
| 2.3.4 The Theory of Task-Repetition | 第22-23页 |
| 2.4 Review of Studies on Frequency Effects | 第23-33页 |
| 2.4.1 Overseas Studies of Frequency Effects | 第23-26页 |
| 2.4.2 Domestic Studies of Frequency Effects | 第26-33页 |
| 2.5 Summary | 第33-34页 |
| Chapter Three Research Methods | 第34-39页 |
| 3.1 Chapter Overview | 第34页 |
| 3.2 Research Questions | 第34-35页 |
| 3.3 Subjects of the Study | 第35-36页 |
| 3.4 Research Instruments | 第36页 |
| 3.5 Data Collection Procedures | 第36-37页 |
| 3.6 Data Analysis Plan | 第37-38页 |
| 3.7 Summary | 第38-39页 |
| Chapter Four Results and Discussions | 第39-62页 |
| 4.1 Chapter Overview | 第39页 |
| 4.2 The Impact of the Writing Frequency on Writing Quality | 第39-47页 |
| 4.3 The Impact of Teacher Written Feedback on Writing Quality | 第47-54页 |
| 4.4 The Combined Effects of Frequency and Teacher Written Feedback on Writing Quality | 第54-56页 |
| 4.5 Results and Discussions of the Pre-test and Post-test | 第56-61页 |
| 4.6 Summary | 第61-62页 |
| Chapter Five Conclusions | 第62-66页 |
| 5.1 Chapter Overview | 第62页 |
| 5.2 Major Findings | 第62-63页 |
| 5.3 Implications for Language Teaching and Learning | 第63-64页 |
| 5.4 Limitations of the Study | 第64页 |
| 5.5 Suggestions for the Future Study | 第64-65页 |
| 5.6 Summary of the Study | 第65-66页 |
| References | 第66-70页 |
| Appendix A Writing Topics | 第70-73页 |
| Appendix B The Compositions from the Subjects | 第73-79页 |
| The Compositions from the Frequency Group without Teacher Written Feedback | 第73-75页 |
| The Compositions from the Frequency Group with Teacher Written Feedback | 第75-77页 |
| The Compositions from the Control Group | 第77-79页 |
| Major Publications | 第79页 |
