| Abstract in Chinese | 第1-8页 |
| Abstract in English | 第8-11页 |
| Chapter 1 Introduction | 第11-14页 |
| ·Historical background | 第11-12页 |
| ·Objectives of the present study | 第12页 |
| ·Organization of the thesis | 第12-14页 |
| Chapter 2 The Theoretical and Empirical Background | 第14-29页 |
| ·Defining recast | 第14-18页 |
| ·The nature of recast | 第14-16页 |
| ·Definitions of recast | 第16-18页 |
| ·Theoretical value of recasts | 第18-20页 |
| ·Research of recasts in first language acquisition | 第18-19页 |
| ·Research of recasts in second language acquisition | 第19页 |
| ·Some other alternative theoretical frameworks | 第19-20页 |
| ·Do recasts facilitate language acquisition? | 第20-25页 |
| ·Recasts can facilitate language acquisition | 第20-24页 |
| ·Empirical evidence for the positive effect of recasts on acquisition | 第20-22页 |
| ·Evidence from cognitive perspective | 第22-23页 |
| ·Are recasts always effective in practice? | 第23-24页 |
| ·To some extent, recasts may not facilitate language acquisition | 第24-25页 |
| ·When and how to make good use of recasts to facilitate L2 acquisition | 第25-28页 |
| ·Comments on the previous researches of recasts | 第28-29页 |
| Chapter 3 Design of the Experiment | 第29-35页 |
| ·Research questions for the present study | 第29页 |
| ·Participants | 第29-30页 |
| ·Target structure | 第30-32页 |
| ·Methods of data collection | 第32-33页 |
| ·Treatment task | 第32页 |
| ·Pretest and immediate and delayed posttest | 第32-33页 |
| ·Procedure of the experiment | 第33页 |
| ·Coding | 第33-35页 |
| Chapter 4 Result Analysis | 第35-41页 |
| ·Results of pretest | 第35-38页 |
| ·Comparison of students’proficiency among the four experimental groups | 第35-36页 |
| ·Analysis of test sentences | 第36-38页 |
| ·Results of posttests | 第38-41页 |
| ·Effect of different types of recasts | 第38-40页 |
| ·Analysis of effect of different types of recasts on RCs learning | 第40-41页 |
| Chapter 5 Discussion | 第41-48页 |
| ·How second language develops by means of recasts | 第41-44页 |
| ·Explicitness | 第44-48页 |
| Chapter 6 Conclusion | 第48-51页 |
| Bibliography | 第51-56页 |
| Appendices | 第56-68页 |
| Appendix A | 第56-57页 |
| Appendix B | 第57-66页 |
| Appendix C | 第66-67页 |
| Appendix D | 第67-68页 |
| 读硕期间发表的论文目录 | 第68-69页 |
