| Acknowledgments | 第1-6页 |
| 中文摘要 | 第6-8页 |
| Abstract | 第8-12页 |
| Chapter 1 Introduction | 第12-17页 |
| ·Background of the Research | 第12-13页 |
| ·Goals of the Research | 第13-14页 |
| ·Significance of the Research | 第14-15页 |
| ·Layout of the Thesis | 第15-17页 |
| Chapter 2 Literature Review | 第17-27页 |
| ·English Tense Studies from the Traditional Approach | 第17-22页 |
| ·Earlier Traditional Model | 第19-20页 |
| ·Reduction Model | 第20页 |
| ·Expansion Model | 第20-22页 |
| ·English Tense Studies from the Cognitive Perspective | 第22-24页 |
| ·Langacker's View of the English Tense | 第22-23页 |
| ·Taylor's View of the English Tense | 第23-24页 |
| ·Yi Zhongliang's View of the English Tense | 第24页 |
| ·Previous Studies of the English Present Tense | 第24-25页 |
| ·Summary | 第25-27页 |
| Chapter 3 Theoretical Framework of Prototype Theory | 第27-41页 |
| ·Categorization | 第27-30页 |
| ·Classical Approach to Categorization | 第28-29页 |
| ·Prototype Approach to Categorization | 第29-30页 |
| ·Prototype Theory | 第30-39页 |
| ·Family Resemblance | 第32-36页 |
| ·Prototypical Members and Non-prototypical Members | 第36-37页 |
| ·Characteristics of Prototypicality | 第37-38页 |
| ·Subjectivity of Prototype Theory | 第38-39页 |
| ·Summary | 第39-41页 |
| Chapter 4 Theoretical Framework of Present Connectiveness from GrammaticalPerspective | 第41-49页 |
| ·The Nature of the English Present Tense | 第41-45页 |
| ·The Present Tense and the Present Connectiveness | 第45-47页 |
| ·Summary | 第47-49页 |
| Chapter 5 Analysis of the Simple Present Tense from the Perspective of PrototypeTheory | 第49-72页 |
| ·Polysemy and Its Use in Non-Lexical Category | 第49-51页 |
| ·Some Terms in Time Location | 第51-52页 |
| ·The Prototypical Use of the English Present Tense | 第52-54页 |
| ·The Non-prototypical Use of the Present Tense | 第54-64页 |
| ·State Use of the Present Tense | 第54-56页 |
| ·Habitual Use of the Present Tense | 第56-57页 |
| ·Past Use of the Present Tense | 第57-60页 |
| ·Future Use of the Present Tense | 第60-64页 |
| ·Subjectivity of the Prototype Theory | 第64-70页 |
| ·Shift of the Reference Moment | 第65-67页 |
| ·For Some Pragmatic Purposes | 第67-68页 |
| ·Reproduction of the Charm and Style of the Original Work | 第68-70页 |
| ·Summary | 第70-72页 |
| Chapter 6 Conclusion | 第72-76页 |
| ·Major Findings | 第72-73页 |
| ·Implications | 第73-74页 |
| ·Limitations of the Research | 第74-75页 |
| ·Suggestions for Future Research | 第75-76页 |
| Bibliography | 第76-80页 |
| Papers Published During the Study for M.A.Degree | 第80页 |
