| Abstract | 第4-5页 |
| 摘要 | 第6-9页 |
| List of Abbreviations | 第9-12页 |
| Chapter 1 Introduction | 第12-16页 |
| 1.1 Research background | 第12-13页 |
| 1.2 Objectives and significance of the research | 第13-15页 |
| 1.3 Structure of the Thesis | 第15-16页 |
| Chapter 2 Literature Review | 第16-27页 |
| 2.1 Feedback | 第16-18页 |
| 2.1.1 Definition of feedback | 第16-17页 |
| 2.1.2 Classification of feedback | 第17-18页 |
| 2.2 Written Corrective Feedback | 第18-19页 |
| 2.2.1 Definition of WCF | 第18-19页 |
| 2.2.2 Classification of WCF | 第19页 |
| 2.3 Some issues on WCF in China and abroad | 第19-23页 |
| 2.3.1 Efficiency of WCF | 第19-21页 |
| 2.3.2 Efficiency of direct corrective feedback and indirect corrective feedback | 第21-22页 |
| 2.3.3 Studies of students’ preference and attitude on feedback | 第22-23页 |
| 2.3.4 Suggestions on feedback in previous studies | 第23页 |
| 2.4 Theoretical basis | 第23-27页 |
| 2.4.1 Krashen’s Input Hypothesis | 第23-24页 |
| 2.4.2 Swain’s Comprehensible Output Hypothesis | 第24-25页 |
| 2.4.3 Vygotsky’s Zone of Proximal Development | 第25页 |
| 2.4.4 Noticing Hypothesis | 第25-27页 |
| Chapter 3 Research Methodology | 第27-33页 |
| 3.1 Participants | 第27-28页 |
| 3.2 Research instruments | 第28-29页 |
| 3.2.1 Translation tasks | 第28-29页 |
| 3.2.2 Questionnaire survey | 第29页 |
| 3.3 Research procedure | 第29-31页 |
| 3.4 Data collection and analysis | 第31-32页 |
| 3.5 Scoring Criteria | 第32-33页 |
| Chapter 4 Results and Discussions | 第33-53页 |
| 4.1 Effects of IWCF and DWCF | 第33-40页 |
| 4.1.1 Comparisons between four groups of subjects in test 1 | 第33-35页 |
| 4.1.2 Comparisons between the First and Last Test of Each Group | 第35-37页 |
| 4.1.3 Comparisons of 4 groups in 4 tests | 第37-39页 |
| 4.1.4 Comparisons between groups of direct WCF and indirect WCF in the 4th task | 第39-40页 |
| 4.2 Learners’ attitude and preference to different types of WCF | 第40-48页 |
| 4.2.1 Learners’ actual evaluations of WCF during the experiments | 第41-42页 |
| 4.2.2 Students’ expectations of teachers’ WCF | 第42-46页 |
| 4.2.3 How students respond to teachers’ written corrective feedback | 第46-48页 |
| 4.3 Discussions on results | 第48-50页 |
| 4.3.1 Discussion on the efficacy of direct feedback and indirect feedback on language accuracy | 第48-49页 |
| 4.3.2 Discussion on the attitude and preference of students to different types of WCF | 第49-50页 |
| 4.4 Pedagogical implications acquired from present study for English teaching .. | 第50-53页 |
| Chapter 5 Conclusion | 第53-55页 |
| 5.1 Research findings | 第53-54页 |
| 5.2 Limitations of the research | 第54-55页 |
| References | 第55-60页 |
| Appendix Ⅰ | 第60-64页 |
| Appendix Ⅱ | 第64-67页 |
| Acknowledgement | 第67-68页 |
