| Abstract | 第4-5页 |
| 中文摘要 | 第6-10页 |
| Abbreviations | 第10-13页 |
| 1. Introduction | 第13-15页 |
| 1.1 Background of research | 第13-14页 |
| 1.2 Significance of research | 第14页 |
| 1.3 Organization of thesis | 第14-15页 |
| 2. Literature Review | 第15-25页 |
| 2.1 Brief introduction of cognitive linguistics | 第15页 |
| 2.2 Studies on semantics of prepositions | 第15-20页 |
| 2.3 Studies on the acquisition of prepositions | 第20-25页 |
| 3. Theoretical Framework | 第25-45页 |
| 3.1 Principled-polysemy model | 第25页 |
| 3.2 Spatial scene and proto-scene | 第25-26页 |
| 3.3 Criteria for determining primary sense and distinct sense | 第26-28页 |
| 3.4 Conceptual transfer | 第28-29页 |
| 3.5 Semantic analysis | 第29-45页 |
| 4. Research Methodology | 第45-51页 |
| 4.1 Research questions | 第45页 |
| 4.2 Participants of research | 第45-47页 |
| 4.3 Research instruments | 第47-49页 |
| 4.3.1 Free sentence-generation task (FSG) | 第47-48页 |
| 4.3.2 Sentence completion task (SCT) | 第48页 |
| 4.3.3 The retrospective interview | 第48-49页 |
| 4.4 Research procedures | 第49-51页 |
| 5. Results and Discussion | 第51-77页 |
| 5.1 Results and discussion of free sentence generation (FSG) | 第51-56页 |
| 5.1.1 Results of free sentence-generation task (FSG) | 第51-55页 |
| 5.1.2 Discussion of free sentence-generation task (FSG) | 第55-56页 |
| 5.2 Results and discussion of sentence completion task (SCT) | 第56-68页 |
| 5.2.1 Results of sentence completion task (SCT) of under | 第57-58页 |
| 5.2.2 Discussion of sentence completion task (SCT) of under | 第58-63页 |
| 5.2.3 Results of sentence completion task (SCT) of below | 第63-64页 |
| 5.2.4 Discussion of sentence completion task (SCT) of below | 第64-66页 |
| 5.2.5 Results of sentence completion task (SCT) of beneath | 第66-67页 |
| 5.2.6 Discussion of sentence completion task (SCT) of beneath | 第67-68页 |
| 5.3 Possible reasons for the difficulty with preposition acquisition | 第68-75页 |
| 5.4 Summary | 第75-77页 |
| 6. Conclusion | 第77-81页 |
| 6.1 Major findings of the study | 第77-78页 |
| 6.2 Pedagogical implications | 第78页 |
| 6.3 Limitations of the study | 第78-79页 |
| 6.4 Suggestions for future study | 第79-81页 |
| Bibliography | 第81-85页 |
| Appendix A | 第85-87页 |
| Appendix B | 第87-91页 |
| Acknowledgements | 第91-93页 |
| Publications | 第93页 |
