| 中文摘要 | 第3-4页 |
| ABSTRACT | 第4-5页 |
| LIST OF ABBREVIATIONS | 第6-9页 |
| Chapter I Introduction | 第9-12页 |
| 1.1 Background of the Study | 第9页 |
| 1.2 Purpose and Significance of the Study | 第9-10页 |
| 1.3 An Outline of the Study | 第10-12页 |
| Chapter II Literature Review | 第12-28页 |
| 2.1 Introduction of TBLT | 第12-23页 |
| 2.1.1 Definition of Task | 第12-13页 |
| 2.1.2 Definition of TBLT | 第13-14页 |
| 2.1.3 Five Principles of Designing Tasks in TBLT | 第14-15页 |
| 2.1.4 Previous Studies Relevant to TBLT both Abroadand at Home | 第15-23页 |
| 2.2 Introduction of Adaptation theory | 第23-28页 |
| 2.2.1 Meaning of Adaptation theory | 第23-24页 |
| 2.2.2 Previous Studies Relevant to the Adaptation theory | 第24-28页 |
| Chapter III Task-design Problems in TBLT | 第28-32页 |
| 3.1 Indefinite Definition of 'Task' | 第28-29页 |
| 3.2 Inappropriate Complexity and Difficulty of Tasks | 第29-30页 |
| 3.3 Formalized Task Designation and Group Work | 第30-32页 |
| Chapter IV Application of SLA in Studying, Analyzing, and Solvingthe Task-design Problems of TBLT | 第32-37页 |
| Chapter V An Adaptation Perspective on Task Designation in TBLT | 第37-40页 |
| 5.1 Characteristics of the Adaptation theory in Studying,Analyzing and Solving the Task -design Problems | 第37-38页 |
| 5.2 Adaptation theory Reflection in TBLT | 第38-40页 |
| 5.2.1 Adaptation theory Reflection in the Authenticity Principleof TBLT | 第38页 |
| 5.2.2 Adaptation theory Reflection in the Theory Foundationsof TBLT | 第38-40页 |
| Chapter VI Solving Strategies of English TBLT Task-designProblems in Senior High school from the Perspective of theAdaptation theory | 第40-49页 |
| 6.1 Strategies of Solving the Indefinite Definition of 'Task' | 第40-42页 |
| 6.2 Strategies of Solving the Inappropriate Complexity andDifficulty of Tasks | 第42-44页 |
| 6.3 Strategies of Solving Formalized Task Designation andGroup Work | 第44-49页 |
| Chapter VII Conclusion | 第49-52页 |
| 7.1 Major Findings | 第49-50页 |
| 7.2 Implications of the Findings | 第50页 |
| 7.3 Limitations and Suggestions for Further Study | 第50-52页 |
| References | 第52-55页 |
| Acknowledgements | 第55-56页 |
| Publication | 第56页 |
