| Acknowledgements | 第4-5页 |
| Abstract | 第5-7页 |
| 摘要 | 第8-14页 |
| Chapter One Introduction | 第14-17页 |
| 1.1 Background of the study | 第14-16页 |
| 1.2 Purposes of the study | 第16页 |
| 1.3 Organization of the study | 第16-17页 |
| Chapter Two Literature Review | 第17-27页 |
| 2.1 The role of working memory in the field of SLA | 第17-18页 |
| 2.2 The role of corrective feedback in the field of SLA | 第18-20页 |
| 2.3 Related empirical studies | 第20-25页 |
| 2.3.1 Previous studies on working memory capacity | 第20-22页 |
| 2.3.2 Previous studies on corrective feedback | 第22-23页 |
| 2.3.3 Previous studies on working memory capacity and corrective feedback | 第23-25页 |
| 2.4 The limitations in the previous researches | 第25-27页 |
| Chapter Three Methodology | 第27-38页 |
| 3.1 Research questions | 第27-28页 |
| 3.2 Experimental design | 第28页 |
| 3.3 Subjects | 第28-29页 |
| 3.4 Target structure | 第29-30页 |
| 3.5 Variables and operational definitions | 第30-32页 |
| 3.5.1 Working memory capacity | 第30-31页 |
| 3.5.2 Corrective feedback | 第31-32页 |
| 3.6 Instruments | 第32-36页 |
| 3.6.1 Untimed Grammatical Judgment Test | 第32页 |
| 3.6.2 Oral Imitation Test | 第32-33页 |
| 3.6.3 Operation Span Test | 第33-36页 |
| 3.6.4 Picture Description Task | 第36页 |
| 3.6.5 Exit interview | 第36页 |
| 3.7 Data collection and analysis | 第36-38页 |
| Chapter Four Results and Discussion | 第38-59页 |
| 4.1 Results | 第38-52页 |
| 4.1.1 Untimed grammatical judgment test | 第39-45页 |
| 4.1.1.1 Descriptive statistics of the Untimed GJT | 第39-45页 |
| 4.1.1.1.1 Working memory capacity | 第40-41页 |
| 4.1.1.1.2 Corrective feedback | 第41-42页 |
| 4.1.1.1.3 Interaction between working memory capacity and corrective feedback | 第42页 |
| 4.1.1.1.4 Interaction among working memory capacity, corrective feedback and time | 第42-45页 |
| 4.1.2 Oral imitation test | 第45-51页 |
| 4.1.2.1 Descriptive Statistics of OIT | 第45-51页 |
| 4.1.2.1.1 Working memory capacity | 第46-47页 |
| 4.1.2.1.2 Corrective feedback | 第47页 |
| 4.1.2.1.3 Interaction between working memory capacity and corrective feedback | 第47-48页 |
| 4.1.2.1.4 Interaction among working memory capacity, corrective feedback and time | 第48-51页 |
| 4.1.3 The results of exit interview | 第51-52页 |
| 4.2 Discussion | 第52-59页 |
| 4.2.1 The role of working memory capacity in the acquisition of past tense forms | 第52-54页 |
| 4.2.2 The role of corrective feedback in the acquisition of past tense forms | 第54-56页 |
| 4.2.3 Interaction between working memory capacity and corrective feedback in the acquisition of past tense forms | 第56-57页 |
| 4.2.4 Interaction among working memory capacity, corrective feedback and time in the acquisition of past tense forms | 第57-59页 |
| Chapter Five Conclusion | 第59-64页 |
| 5.1 Major findings | 第59-60页 |
| 5.2 Implications | 第60-62页 |
| 5.2.1 Theoretical implications | 第60-61页 |
| 5.2.3 Pedagogical implication | 第61-62页 |
| 5.3 Limitations and suggestions | 第62-64页 |
| References | 第64-72页 |
| Appendix Ⅰ Operation Span Task | 第72-74页 |
| Appendix Ⅱ Untimed Grammatical Judgment Test | 第74-76页 |
| Appendix Ⅲ Oral Imitation Test | 第76-78页 |
| Appendix Ⅳ Picture Description Task | 第78-79页 |
| Appendix Ⅶ Exit Interview | 第79页 |
