| Acknowledgements | 第6-7页 |
| Abstract | 第7-8页 |
| 摘要 | 第9-13页 |
| Abbreviations | 第13-14页 |
| Chapter 1 Introduction | 第14-17页 |
| 1.1 Research Background | 第14-15页 |
| 1.2 Objectives and Significance of the Study | 第15-16页 |
| 1.3 Organization of the Thesis | 第16-17页 |
| Chapter 2 Literature Review | 第17-36页 |
| 2.1 Demotivation | 第17-19页 |
| 2.2 Empirical Studies of Demotivation in the L2 Field | 第19-31页 |
| 2.2.1 Studies of Demotivating Factors Affecting L2 Learners | 第19-27页 |
| 2.2.2 Studies of the Correlation between Demotivating Factors and Learner Variables | 第27-31页 |
| 2.3 Demotivation Theories | 第31-36页 |
| 2.3.1 Gardner's Social-educational Theories | 第31-33页 |
| 2.3.2 Williams and Burden's Social Constructivist Theories | 第33-36页 |
| Chapter 3 Methodology | 第36-41页 |
| 3.1 Instruments | 第36-38页 |
| 3.1.1 Questionnaire | 第36-38页 |
| 3.1.2 Interview | 第38页 |
| 3.2 Data Collection and Analysis | 第38-41页 |
| Chapter 4 Results and Discussion | 第41-62页 |
| 4.1 Possible Demotivating Factors | 第41-48页 |
| 4.2 The Actual Influences of the Demotivating Factors on Motivation Intensity | 第48-50页 |
| 4.3 Differences between Less Motivated Learners and More Motivated Learnersin terms of Demotivating Factors | 第50-53页 |
| 4.4 Differences in Demotivating Factors in terms of Academic Years | 第53-56页 |
| 4.5 Suggestions for Stakeholders | 第56-62页 |
| 4.5.1 Suggestions for Teachers and Schools | 第56-60页 |
| 4.5.2 Suggestions for Textbook Designers | 第60页 |
| 4.5.3 Suggestions for Parents | 第60-62页 |
| Chapter 5 Conclusion | 第62-66页 |
| 5.1 Major Findings | 第62-63页 |
| 5.2 Pedagogical Implications | 第63-65页 |
| 5.3 Limitations and Suggestions for Future Research | 第65-66页 |
| Bibliography | 第66-76页 |
| Appendix | 第76-77页 |
