| ABSTRACT | 第4-5页 |
| 摘要 | 第6-9页 |
| Chapter One Introduction | 第9-16页 |
| 1.1 Background of the Study | 第9-14页 |
| 1.2 Purposes and Significance of the Study | 第14-15页 |
| 1.3 Organization of the Thesis | 第15-16页 |
| Chapter Two Review of Related Literature | 第16-42页 |
| 2.1 Tasks in Foreign Language Teaching | 第16-28页 |
| 2.1.1 Definition and characteristics of tasks | 第16-20页 |
| 2.1.2 Components of tasks | 第20-21页 |
| 2.1.3 Classification of tasks | 第21-24页 |
| 2.1.4 Theoretical foundation of task-based language teaching | 第24-28页 |
| 2.2 Considerations in Tasks Design and Implementation | 第28-37页 |
| 2.2.1 Ellis’s lesson design opinions | 第28-32页 |
| 2.2.2 Principles guiding tasks design | 第32-34页 |
| 2.2.3 Factors affecting tasks implementation | 第34-35页 |
| 2.2.4 Principles guiding tasks implementation | 第35-37页 |
| 2.3 Roles of Teachers and Learners in TBLT | 第37-42页 |
| Chapter Three Research Design | 第42-45页 |
| 3.1 Research Questions | 第42页 |
| 3.2 Subject Selection | 第42-43页 |
| 3.3 Procedures of Data Collection | 第43-45页 |
| Chapter Four Results and Discussion | 第45-61页 |
| 4.1 Variables Considered in Tasks Design | 第46-51页 |
| 4.2 Factors Considered in Task Implementation | 第51-55页 |
| 4.3 Principles That Teachers Tried to Follow | 第55-57页 |
| 4.4 Challenges in Tasks Design and Implementation | 第57-58页 |
| 4.5 Problems of in Tasks Design and Implementation in the 19 Designs | 第58-59页 |
| 4.6 Summary | 第59-61页 |
| Chapter Five Conclusion | 第61-64页 |
| 5.1 Major Findings | 第61-62页 |
| 5.2 Limitations of the Study | 第62-63页 |
| 5.3 Implications for Future Research | 第63-64页 |
| Acknowledgements | 第64-65页 |
| Bibliography | 第65-69页 |
| 攻硕期间取得的研究成果 | 第69-70页 |
