| 摘要 | 第4-5页 |
| Abstract | 第5-6页 |
| Chapter One Introduction | 第10-15页 |
| 1.1 Background of the Study | 第10-11页 |
| 1.2 Significance of the Study | 第11-12页 |
| 1.3 Purpose of the Study | 第12-13页 |
| 1.4 Layout of the Study | 第13-15页 |
| Chapter Two Literature Review | 第15-26页 |
| 2.1 Modality and English Modals | 第15-18页 |
| 2.1.1 Definition and Classification of Modality | 第15-17页 |
| 2.1.2 Definition and Classification of English Modals | 第17-18页 |
| 2.2 Previous Studies on English modals | 第18-23页 |
| 2.2.1 Semantic Study | 第19-20页 |
| 2.2.2 Pragmatic Study | 第20-21页 |
| 2.2.3 Cognitive Study | 第21-23页 |
| 2.3 Previous Studies on the Acquisition of English Modals | 第23-25页 |
| 2.3.1 Previous Studies on the Acquisition of English Modals at Home | 第23-24页 |
| 2.3.2 Previous Studies on the Acquisition of English Modals Abroad | 第24-25页 |
| 2.4 Summary | 第25-26页 |
| Chapter Three Theoretical Framework | 第26-34页 |
| 3.1 Image Schema Theory | 第26-30页 |
| 3.1.1 Force Schema | 第27-28页 |
| 3.1.2 Force Schema and English Modals | 第28-30页 |
| 3.2 Mental Space Theory | 第30-34页 |
| 3.2.1 Introduction of the Mental Space Theory | 第30-31页 |
| 3.2.2 Mental Space and English Modals | 第31-34页 |
| Chapter Four Methodology | 第34-38页 |
| 4.1 Research Questions of the Study | 第34页 |
| 4.2 Research Design | 第34-37页 |
| 4.2.1 Participants | 第35页 |
| 4.2.2 Instruments | 第35-36页 |
| 4.2.3 Procedures | 第36-37页 |
| 4.3 Data Collection | 第37-38页 |
| Chapter Five Analysis and Discussion | 第38-56页 |
| 5.1 Results of the Experiment | 第38-39页 |
| 5.2 Data Analysis before the Experiment | 第39-41页 |
| 5.2.1 Data Analysis about the Testing Items | 第39-40页 |
| 5.2.2 Data Analysis about the Entrance Examination Scores | 第40-41页 |
| 5.3 Data Analysis after the Experiment | 第41-50页 |
| 5.3.1 Data Analysis of the Pretests | 第41-43页 |
| 5.3.2 Data Analysis of the Immediate Post-tests | 第43-44页 |
| 5.3.3 Comparison between the Pretests and the Immediate Post-tests | 第44-47页 |
| 5.3.4 Comparison between the Immediate Post-tests and the Delayed Post-tests | 第47-50页 |
| 5.4 Discussion | 第50-55页 |
| 5.4.1 Students' Acquisition Competence of English Modals in the Pretest and in the Immediate Post-test | 第50-51页 |
| 5.4.2 Scores of the Two Classes after Receiving the Different Teaching Methods | 第51-52页 |
| 5.4.3 Effects of Different Teaching Methods on the Acquisition of English Modals | 第52-54页 |
| 5.4.4 Different Effects between the Short-term Acquisition and the Long-term Acquisition in the Experimental Class | 第54-55页 |
| 5.5 Summary | 第55-56页 |
| Chapter Six Conclusion | 第56-61页 |
| 6.1 Major Findings | 第56-57页 |
| 6.2 Pedagogical Implications | 第57-58页 |
| 6.3 Limitations | 第58-59页 |
| 6.4 Further Suggestions | 第59-61页 |
| Bibliography | 第61-65页 |
| Appendix Ⅰ Pretest Paper | 第65-68页 |
| Appendix Ⅱ Post-test Paper | 第68-71页 |
| Appendix Ⅲ Scores of Three Tests | 第71-73页 |
| 攻读硕士学位期间取得的学术成果 | 第73-74页 |
| Acknowledgements | 第74页 |
