| Chapter One Introduction | 第1-10页 |
| Chapter Two Literature Review | 第10-28页 |
| 2．1 Cooperative learning | 第10-18页 |
| 2．1．1 Definitions | 第10-11页 |
| 2．1．2 The sociocultural perspective of CL | 第11-13页 |
| 2．1．3 The essential elements that make cooperation work | 第13-18页 |
| 2．2 Cooperation via online learning | 第18-25页 |
| 2．2．1 Power of online learning for cooperation | 第19-21页 |
| 2．2．2 Effectiveness of online cooperative language learning | 第21-25页 |
| 2．3 Research questions | 第25-28页 |
| Chapter Three Methodology | 第28-33页 |
| 3．1 Subjects | 第28页 |
| 3．2 Procedures | 第28-31页 |
| 3．3 Data collection | 第31-33页 |
| Chapter Four Findings and Discussion | 第33-46页 |
| 4．1 Findings | 第33-34页 |
| 4．2 Discussion | 第34-46页 |
| 4．2．1 Effective cooperation via online learning | 第34-38页 |
| 4．2．2 Impact on students'language learning | 第38-46页 |
| 4．2．2．1 Improved writing proficiency | 第38-41页 |
| 4．2．2．2 Enhanced critical thinking | 第41-43页 |
| 4．2．2．3 Strengthened social competence | 第43-46页 |
| Chapter Five Implications and Conclusion | 第46-49页 |
| 5．1 Implications | 第46-48页 |
| 5．2 Conclusion | 第48-49页 |
| Bibliography | 第49-56页 |
| Appendix Ⅰ Demographic Information | 第56-57页 |
| Appendix Ⅱ Survey on the Online Cooperative Language Learning | 第57-59页 |
| Appendix Ⅲ Five Constructs in the Survey and Their Results | 第59-61页 |
| Appendix Ⅳ Individual Student's Writing Record | 第61-62页 |
| Appendix Ⅴ Some Key Interview Questions | 第62页 |
| Appendix Ⅵ Three Student E-mail Writing Samples | 第62-64页 |
