| Abstract | 第3页 |
| 摘要 | 第4-8页 |
| Chapter One Introduction | 第8-13页 |
| 1.1 Research Background | 第8-10页 |
| 1.2 Aims and Significance of the Present Research | 第10-12页 |
| 1.3 Outline of the Thesis | 第12-13页 |
| Chapter Two Literature Review | 第13-31页 |
| 2.1 Definition of Feedback | 第13-16页 |
| 2.1.1 Definition of Written Corrective Feedback | 第14页 |
| 2.1.2 Types of Written Corrective Feedback | 第14-16页 |
| 2.1.3 Operational definition of the main terms | 第16页 |
| 2.2 Theoretical Foundation of Corrective Feedback | 第16-20页 |
| 2.2.1 Noticing Hypothesis | 第16-18页 |
| 2.2.2 Comprehensible Output Hypothesis | 第18-19页 |
| 2.2.3 Interaction Hypothesis | 第19-20页 |
| 2.3 Review of Previous Studies | 第20-31页 |
| 2.3.1 Written Corrective Feedback and Improved Accuracy | 第21-24页 |
| 2.3.2 Effects of Different Written Corrective Feedback | 第24-28页 |
| 2.3.3 Studies of Students’ Perception of written CF | 第28-31页 |
| Chapter Three Research Methodology | 第31-42页 |
| 3.1 Research Questions | 第31页 |
| 3.2 Research Subjects | 第31-33页 |
| 3.2.1 The Instructional Context of the Participants | 第31-33页 |
| 3.2.2 Grouping of the Participants | 第33页 |
| 3.3 Choice of Target Grammatical Form | 第33-36页 |
| 3.3.1 The Definition of Subject-verb Agreement | 第34-35页 |
| 3.3.2 Category of errors | 第35-36页 |
| 3.4 Treatment and Instrument | 第36-42页 |
| 3.4.1 Writing Tests | 第37-38页 |
| 3.4.2 The Methods of Scoring | 第38-39页 |
| 3.4.3 Questionnaire | 第39页 |
| 3.4.4 Procedure of Data Collection | 第39-40页 |
| 3.4.5 Data Analysis Tool | 第40-42页 |
| Chapter Four Results and Discussion | 第42-61页 |
| 4.1 Results of the four Writing Tests | 第42-54页 |
| 4.1.1 Pretest | 第42-44页 |
| 4.1.2 Effects of Different Written Corrective Feedback on Accuracy ofSubject-verb Agreement | 第44-47页 |
| 4.1.3 Effectiveness of Focused and Unfocused Written CF on the Accuracyof Subject-verb Agreement | 第47-50页 |
| 4.1.4 Participants Responses in the Questionnaire | 第50-54页 |
| 4.2 Discussion | 第54-61页 |
| 4.2.1 Effects of Written CF on the Accuray of Subject-verb Agreement | 第54-56页 |
| 4.2.2 Comparison of Effectiveness of Focused and Unfocused Written CF onthe Accuracy of Subject-verb Agreement | 第56-58页 |
| 4.2.3 Response of Participants to Written CF | 第58-61页 |
| Chapter Five Conclusion | 第61-65页 |
| 5.1 Major Findings | 第61-62页 |
| 5.2 Pedagogical Implication | 第62-63页 |
| 5.3 Limitations and Suggestions for Future Research | 第63-65页 |
| Bibliography | 第65-72页 |
| Appendix I | 第72-73页 |
| Appendix II | 第73-75页 |
| Acknowledgements | 第75-77页 |
| 附件 | 第77页 |
