| Acknowledgements | 第1-7页 |
| Abstract（Chinese) | 第7-9页 |
| Abstract（English) | 第9-12页 |
| Chapter 1 An Introduction to Expressionism | 第12-21页 |
| 1．1 Origin and development | 第12-14页 |
| 1．2 The historical and culturalbackground of Expressionism | 第14-16页 |
| 1．3 People and ideas that contribute to Expressionism | 第16-17页 |
| 1．4 Major writers and primary features of Expressionist literature | 第17-21页 |
| Chapter 2 An Introduction to Eugene O'Neill | 第21-30页 |
| 2．1 Hislife and writing | 第21-23页 |
| 2．2 His contribution to Americ and rama and hisartisti ccredo | 第23-28页 |
| 2．3 Expressionistic influence exertedby Germ an dramatists and Strindberg | 第28-30页 |
| Chapter 3 An Expressionistic Analysis of The Hairy Ape | 第30-62页 |
| 3．1 About the play | 第30-34页 |
| 3．2 Expressionistic elem entsin from scene IthroughsceneIV | 第34-42页 |
| 3．3 Analysis of the lastfour Expressionistic scenes | 第42-53页 |
| 3．3．1 Masks | 第42-46页 |
| 3．3．2 Soundeffect and interior monologue | 第46-53页 |
| 3．4 Symbols | 第53-58页 |
| 3．5 Theplay's features in ar rangingits characters | 第58-59页 |
| 3．6 Use of contrasts | 第59-60页 |
| 3．7 Summary | 第60-62页 |
| Chapter 4 Conclusion | 第62-64页 |
| Bibliography | 第64-67页 |
