| ACKNOWLEDGEMENTS | 第5-6页 |
| ABSTRACT | 第6-7页 |
| 摘要 | 第8-12页 |
| CHAPTER ONE INTRODUCTION | 第12-19页 |
| 1.1 Research Background and Significance | 第12-14页 |
| 1.2 Research Questions | 第14页 |
| 1.3 Methodology | 第14-17页 |
| 1.3.1 Data Collection | 第14-16页 |
| 1.3.2 Research Methods | 第16-17页 |
| 1.4 Organization of the thesis | 第17-19页 |
| CHAPTER TWO LITERATURE REVIEW | 第19-37页 |
| 2.1 The Introduction to Presupposition Theory | 第19-24页 |
| 2.1.1 The Definition of Presupposition | 第19-20页 |
| 2.1.2 Semantic Presupposition | 第20-21页 |
| 2.1.3 Pragmatic Presupposition | 第21-23页 |
| 2.1.4 Types of Presupposition | 第23-24页 |
| 2.2 Previous studies on Presupposition | 第24-29页 |
| 2.2.1 Overseas Studies on Presupposition | 第25-27页 |
| 2.2.2 Domestic Studies on Presupposition | 第27-29页 |
| 2.3 Previous Studies on Presupposition Triggers | 第29-32页 |
| 2.3.1 Overseas Studies on Presupposition Triggers | 第29-31页 |
| 2.3.2 Domestic Studies on Presupposition Triggers | 第31-32页 |
| 2.4 Reviews on Corporation Profiles | 第32-37页 |
| 2.4.1 Definition of Corporation Profiles | 第32-33页 |
| 2.4.2 Functions of Corporation Profiles | 第33-35页 |
| 2.4.3 Previous Studies on Corporation Profiles | 第35-37页 |
| CHAPTER THREE THEORETICAL FRAMEWORK | 第37-48页 |
| 3.1 The Definition of Presupposition Triggers | 第37-38页 |
| 3.2 Features of Presupposition Triggers | 第38-39页 |
| 3.3 Categories of Presupposition Triggers | 第39-46页 |
| 3.4 Analytical Procedure | 第46-48页 |
| CHAPTER FOUR DETAILED STUDY OF PT IN THE CORPORATION PROFILES | 第48-69页 |
| 4.1 PT in the Chinese and the American Corporation Profiles | 第48-62页 |
| 4.1.1 PT in the Chinese Corporation Profiles | 第48-56页 |
| 4.1.2 PT in the American Corporation Profiles | 第56-62页 |
| 4.2 Comparison on the Frequency of PT in the Corporation Profiles | 第62-69页 |
| 4.2.1 Similarities of PT in Both Corporation Profiles | 第64-65页 |
| 4.2.2 Differences of PT in Both Corporation Profiles | 第65-69页 |
| CHAPTER FIVE PRAGMATIC FUNCTIONS OF PT IN CORPORATION PROFILES | 第69-83页 |
| 5.1 Analytical Basis | 第69-70页 |
| 5.2 Pragmatic Functions of PT in the Chinese Corporation Profiles | 第70-76页 |
| 5.2.1 To Introduce new information | 第70-71页 |
| 5.2.2 To Omit Background Introduction | 第71-72页 |
| 5.2.3 To Present Advantages Euphemistically | 第72-75页 |
| 5.2.4 To Reinforce Impression | 第75-76页 |
| 5.3 Pragmatic Functions of PT in the American Corporation Profiles | 第76-81页 |
| 5.3.1 To Introduce New Information | 第76页 |
| 5.3.2 To Reinforce Impression | 第76-77页 |
| 5.3.3 To Present Superiority | 第77-78页 |
| 5.3.4 To Stress Operation Principles and Targets | 第78-79页 |
| 5.3.5 To Lead Readers’ Thinking | 第79-80页 |
| 5.3.6 To Increase Intimacy | 第80-81页 |
| 5.4 Brief Discussion on Similarities and Differences | 第81-83页 |
| CHAPTER SIX CONCLUSION | 第83-86页 |
| 6.1 Major Findings | 第83-84页 |
| 6.2 Limitations and Suggestions | 第84-86页 |
| REFERENCES | 第86-91页 |
| APPENDIX | 第91-96页 |
