| Abstract | 第1-9页 |
| 摘要 | 第9-10页 |
| Acknowledgements | 第10-13页 |
| Chapter 1 Introduction | 第13-17页 |
| ·Research Background | 第13-15页 |
| ·Purpose and Significance of this Study | 第15-16页 |
| ·Framework of the Paper | 第16-17页 |
| Chapter 2 Theoretical Basis and Relevant Researches | 第17-34页 |
| ·Heterogeneous Forms of the Same Class | 第17-18页 |
| ·Theoretical Basis of Heterogeneous Classes | 第17-18页 |
| ·Relevant Researches on Heterogeneous Classes | 第18页 |
| ·Tasks | 第18-25页 |
| ·Deifnition of Task | 第18-22页 |
| ·,2 Task Types | 第22-23页 |
| ·Task Components | 第23-25页 |
| ·Task Complexity | 第25页 |
| ·Task-based Language Teaching | 第25-34页 |
| ·Theoretical Basis of Task-based Language Teaching | 第25-28页 |
| ·Relevant Researches | 第28-30页 |
| ·Principles and Features of Task-based Language Teaching | 第30-31页 |
| ·Framework of Task-based Language Teaching | 第31-33页 |
| ·Assessments in Task-based Language Teaching | 第33-34页 |
| Chapter 3 Research Design | 第34-36页 |
| ·Research questions | 第34页 |
| ·Subjects | 第34-35页 |
| ·Teaching Materials | 第35页 |
| ·Data Collection | 第35-36页 |
| Chapter 4 A Case Study of the Heterogeneous Classes under TBLT | 第36-58页 |
| ·A Brief Introduction of Case One | 第36-37页 |
| ·The Application of Task-based Language Teaching in Case One | 第37-48页 |
| ·Tasks or Exercises | 第37-38页 |
| ·Task Types in Case One | 第38-39页 |
| ·Task Components in Case one | 第39-45页 |
| ·Principles of TBLT in Case One | 第45-46页 |
| ·The Framework of Case One | 第46-47页 |
| ·Assessment of TBLT in Case One | 第47-48页 |
| ·A Brief Introduction of Case Two | 第48-49页 |
| ·The Application of Task-based Language Teaching in Case Two | 第49-58页 |
| ·Task or Exercise | 第49-50页 |
| ·Task Types in Case Two | 第50-51页 |
| ·Task Components in Case Two | 第51-55页 |
| ·Principles of TBLT in Case Two | 第55页 |
| ·The Framework of Case Two | 第55-57页 |
| ·Assessment of TBLT in Case Two | 第57-58页 |
| Chapter 5 Data Analysis and Discussion | 第58-69页 |
| ·Tasks or Exercises | 第58-59页 |
| ·Task Types | 第59-61页 |
| ·Task Components | 第61-66页 |
| ·Principles in Heterogeneous Classes | 第66-67页 |
| ·Framework in Heterogeneous Claaaes | 第67-68页 |
| ·Assessment in Heterogeneous Classes | 第68-69页 |
| Chapter 6 Conclusion | 第69-75页 |
| ·Main Findings | 第69-71页 |
| ·Implications | 第71-73页 |
| ·Limitations of the Study | 第73-74页 |
| ·Suggestions for Further Study | 第74-75页 |
| References | 第75-80页 |
| Appendix | 第80-95页 |
