| 摘要 | 第1-6页 |
| ABSTRACT | 第6-7页 |
| List of Abbreviations | 第7-11页 |
| Chapter 1 Introduction | 第11-15页 |
| ·Background Information | 第11-12页 |
| ·Research Significance and Purpose | 第12-13页 |
| ·Study Questions | 第13页 |
| ·Layout of the Thesis | 第13-15页 |
| Chapter 2 Literature Review | 第15-29页 |
| ·Language History | 第15-22页 |
| ·British English History | 第15-19页 |
| ·American English History | 第19-21页 |
| ·Comparison between British English and American English | 第21-22页 |
| ·Language Change | 第22-29页 |
| ·Language Addition and Loss | 第23-25页 |
| ·The Causes for Addition and Loss of Words | 第25-29页 |
| Chapter 3 Methodology | 第29-33页 |
| ·Corpora Used in the Study | 第29-30页 |
| ·Software Used in Data Extraction | 第30-31页 |
| ·Data Processing | 第31-33页 |
| Chapter 4 Data Analysis | 第33-61页 |
| ·Quantitive Study of the Four Corpora | 第33-39页 |
| ·Lexical Density | 第33-36页 |
| ·Average Word Length | 第36-37页 |
| ·Analysis of Word Length of Four Corpora | 第37-39页 |
| ·Comparative Analysis of British and American Spellings | 第39-48页 |
| ·Words with Omission of Silent Letter | 第39-41页 |
| ·Words Ending with Er Rather than Re | 第41-43页 |
| ·Words with I Rather than Y | 第43页 |
| ·Words with Z Rather than S | 第43-44页 |
| ·Frequency Distribution of British English Words and American English Words | 第44-48页 |
| ·Analysis of Americanization Process in British Corpora | 第48-59页 |
| ·The Synchronic Comparison of Shared Words | 第48-51页 |
| ·Comparison of American Synchronic Unique Words and Diachronic Unique Words with Flob | 第51-59页 |
| ·Brown Unique Words Compared with Lob Occurrences that Appear in Flob | 第51-52页 |
| ·Changes in Frequency Distribution of the Brown Unique Words Shared by Flob | 第52-54页 |
| ·Frown Unique Words Compared with Brown Occurrences that Appear in Flob | 第54-56页 |
| ·Changes in Frequency Distribution of the Shared Words of Frown Unique and Flob | 第56-59页 |
| ·Causes for Americanization | 第59-61页 |
| Chapter 5 Conclusion | 第61-64页 |
| ·Major Findings of the Study | 第61-62页 |
| ·Implication | 第62页 |
| ·Limitations and Suggestions | 第62-64页 |
| References | 第64-67页 |
| Appendices | 第67-79页 |
| Acknowledgements | 第79-80页 |
| Resume | 第80页 |
