| Abstract | 第4-5页 |
| 摘要 | 第6-13页 |
| Introduction | 第13-19页 |
| Chapter OneLiterature Review | 第19-37页 |
| 1.1 Studies of Task Complexity on Learners'Oral Production | 第19-28页 |
| 1.1.1 Studies on Oral Production along Resource-dispersingDimension | 第19-23页 |
| 1.1.2 Studies on Oral Production along Resource-directingDimension | 第23-25页 |
| 1.1.3 Studies on Oral Production Combining Resource-dispersingand Resource-directing Dimensions | 第25-28页 |
| 1.2 Studies of Task Complexity on Learners'Written Production | 第28-37页 |
| 1.2.1 Studies on Written Production along Resource-dispersingDimension | 第28-32页 |
| 1.2.2 Studies on Written Production along Resource-directingDimension | 第32-35页 |
| 1.2.3 Studies on Written Production CombiningResource-dispersing and Resource-directing Dimensions | 第35-37页 |
| Chapter Two Theoretical Basis | 第37-44页 |
| 2.1 The Limited Attentional Capacity Model | 第37-40页 |
| 2.2 The Cognition Hypothesis | 第40-44页 |
| Chapter Three Methodology | 第44-57页 |
| 3.1 Research Design | 第44-52页 |
| 3.1.1 Research questions | 第44-45页 |
| 3.1.2 Research Subjects | 第45-47页 |
| 3.1.3 Research Instrument | 第47-52页 |
| 3.2 Research Procedure | 第52-57页 |
| 3.2.1 Data Collection | 第52页 |
| 3.2.2 Data Analysis | 第52-57页 |
| Chapter Four Results ＆ Discussion | 第57-87页 |
| 4.1 Effects of Task Complexity along Resource-directing Dimensionon Written Performance | 第57-72页 |
| 4.1.1 Effects of task complexity (+/-few elements) on fluency | 第58-62页 |
| 4.1.2 Effects of task complexity (+/-few elements) on accuracy | 第62-64页 |
| 4.1.3 Effects of task complexity (+/-few elements) on complexity | 第64-72页 |
| 4.2 Effects of Task Complexity along Resource-dispersing Dimensionon Written Performance | 第72-87页 |
| 4.2.1 Effects of task complexity (+/-planning time) on fluency | 第72-75页 |
| 4.2.2 Effects of task complexity (+/-planning time) on accuracy | 第75-76页 |
| 4.2.3 Effects of task complexity (+/-planning time) on complexity | 第76-87页 |
| Conclusion | 第87-91页 |
| Bibliography | 第91-103页 |
| Appendix Ⅰ College Entrance Examination on English in 2017 | 第103-104页 |
| Appendix Ⅱ Writing Prompt | 第104-106页 |
| Acknowledgements | 第106-107页 |
