| Acknowledgements | 第1-6页 |
| 摘要 | 第6-7页 |
| Abstract | 第7-10页 |
| Chapter Ⅰ Introduction | 第10-24页 |
| ·Motivation | 第10-11页 |
| ·Literature Review | 第11-14页 |
| ·Wittgenstein's Later Theory | 第14-20页 |
| ·Language Transfer in the Second Language Acquisition | 第20-24页 |
| Chapter Ⅱ The Form of Modal Auxiliary Verbs in English and German | 第24-30页 |
| ·English Modal Auxiliary Verbs Defined | 第24-25页 |
| ·German Modal Auxiliary Verbs Defined | 第25-28页 |
| ·Brief Review | 第28-30页 |
| Chapter Ⅲ The Meaning of Modal Auxiliary Verbs in English and German | 第30-46页 |
| ·The Meaning of English Modal Auxiliary Verbs | 第30-36页 |
| ·The Meaning of German Modal Auxiliary Verbs | 第36-41页 |
| ·Brief Review | 第41-46页 |
| Chapter Ⅳ The Function of Modal Auxiliary Verbs in English and German | 第46-54页 |
| ·An Overview of Language Function | 第46-48页 |
| ·The Function of English Modal Auxiliary Verbs | 第48-49页 |
| ·The Function of German Modal Auxiliary Verbs | 第49-51页 |
| ·Brief Review | 第51-54页 |
| Conclusion | 第54-60页 |
| Bibliography | 第60-61页 |
