| Acknowledgement | 第4-5页 |
| Abstract | 第5页 |
| 摘要 | 第6-9页 |
| Chapter Ⅰ Introduction | 第9-11页 |
| 1.1 Necessity of the study | 第9-10页 |
| 1.2 Organization of this thesis | 第10-11页 |
| Chapter Ⅱ Literature Review | 第11-29页 |
| 2.1 Theoretical framework | 第11-14页 |
| 2.1.1 Noticing hypothesis | 第11-12页 |
| 2.1.2 Constructivism theory | 第12-14页 |
| 2.2 Brief introduction of the previous researches on teachers' roles | 第14-18页 |
| 2.2.1 Teachers' roles in traditional education | 第14-17页 |
| 2.2.2 Teachers' roles in modern education | 第17-18页 |
| 2.3 Contrast between traditional teaching methods and MCALL | 第18-29页 |
| 2.3.1 Limitations of the traditional teaching methods | 第20页 |
| 2.3.2 Necessity of technology in educational area | 第20-21页 |
| 2.3.3 Background and evolution of MCALL | 第21-24页 |
| 2.3.4 Pros and cons of MCALL | 第24-29页 |
| Chapter Ⅲ Methodology | 第29-33页 |
| 3.1 Methodology of this research | 第29-31页 |
| 3.1.1 Introduction | 第29页 |
| 3.1.2 Hypotheses | 第29-30页 |
| 3.1.3 Subject | 第30页 |
| 3.1.4 Instrument | 第30-31页 |
| 3.2 Data collection and analyses | 第31-33页 |
| Chapter Ⅳ Results and Discussion | 第33-46页 |
| 4.1 Results and discussion of the survey | 第33-37页 |
| 4.1.1 Students' and teachers' opinions about the roles of teachers in MCALL | 第33-34页 |
| 4.1.2 Percentage of high-agree group, neutral group and low-agree group onteachers' roles in both students' and teachers' opinions | 第34-36页 |
| 4.1.3 Interview analyses | 第36-37页 |
| 4.2 Summary of the survey results | 第37-46页 |
| 4.2.1 Six roles of teachers in MCALL | 第37-44页 |
| 4.2.2 Circulation hypothesis on the reorientation of teachers' roles in MCALL environment | 第44-46页 |
| Chapter Ⅴ Conclusion | 第46-51页 |
| 5.1 Major findings | 第46-47页 |
| 5.2 Implications | 第47-48页 |
| 5.3 Limitations of the study | 第48-49页 |
| 5.4 Suggestions for further research | 第49-51页 |
| Bibliography | 第51-54页 |
| Appendix | 第54-59页 |
| 攻读硕士学位期间科研成果 | 第59页 |
