| ABSTRACT | 第1-6页 |
| 摘要 | 第6-8页 |
| CONTENTS | 第8-10页 |
| LIST OF TABLES AND FIGURES | 第10-11页 |
| Chapter One Introduction | 第11-15页 |
| ·Research background of the study on task complexity | 第11-12页 |
| ·Significance of the study | 第12-13页 |
| ·Organization of the thesis | 第13-15页 |
| Chapter Two Literature Review | 第15-43页 |
| ·Theoretical studies of output hypothesis | 第15-22页 |
| ·Definition of output | 第15-16页 |
| ·Swain's output hypothesis | 第16-19页 |
| ·Previous research on Output Hypothesis | 第19-22页 |
| ·Framework of present study based on Output Hypothesis | 第22-36页 |
| ·Output task-based approach | 第22-23页 |
| ·Task complexity in Robinson's theory | 第23-24页 |
| ·Robinson and Skehan's theory about attentional resources | 第24-26页 |
| ·Empirical studies on Task Complexity | 第26-36页 |
| ·Three indices of measuring language output | 第36-43页 |
| ·Studies on accuracy on Task Complexity | 第37页 |
| ·Studies on complexity on Task Complexity | 第37-40页 |
| ·Studies on fluency on Task Complexity | 第40-43页 |
| Chapter Three Research Methodology | 第43-51页 |
| ·Research purpose | 第43页 |
| ·Research questions | 第43-44页 |
| ·Research design | 第44-51页 |
| ·Subjects | 第44-45页 |
| ·Method | 第45页 |
| ·Instruments | 第45-48页 |
| ·Procedures | 第48-51页 |
| Chapter Four Results and Discussion | 第51-73页 |
| ·Data about accuracy, fluency and complexity in group statistics | 第51-60页 |
| ·The accuracy data in group statistics | 第51-53页 |
| ·The fluency data in group statistics | 第53-55页 |
| ·The complexity data in group statistics | 第55-60页 |
| ·Data about individuals' performance and analysis | 第60-68页 |
| ·Individual performance in terms of accuracy | 第60-63页 |
| ·Individual performance in terms of fluency | 第63-64页 |
| ·Individual performance in terms of complexity | 第64-68页 |
| ·Discussion about three aspects of written production | 第68-73页 |
| Chapter Five Conclusion and implications | 第73-77页 |
| ·Summaries of the main findings in the study | 第73-74页 |
| ·Implications for language teaching | 第74-75页 |
| ·Limitations and suggestions for future study | 第75-77页 |
| BIBLIOGRAPHY | 第77-83页 |
| ACKNOWLEDGEMENTS | 第83-85页 |
| PUBLLISHED PAPERS | 第85页 |
