| Acknowledgements | 第1-5页 |
| Abstract | 第5-7页 |
| 内容摘要 | 第7-13页 |
| Chapter One Introduction | 第13-17页 |
| ·Background of the Study | 第13-14页 |
| ·Significance of the Study | 第14-15页 |
| ·Organization of the Thesis | 第15-17页 |
| Chapter Two Previous Studies on Abstract | 第17-24页 |
| ·Definition of Abstract | 第17-18页 |
| ·Importance of Abstract | 第18-19页 |
| ·Previous Studies on Abstract | 第19-22页 |
| ·Guidelines for Reading and Writing Abstracts | 第19-20页 |
| ·Discourse Structure of Abstract | 第20-21页 |
| ·Linguistic Features of Abstract | 第21-22页 |
| ·The Perspective of the Present Study | 第22-24页 |
| Chapter Three Theoretical Framework | 第24-43页 |
| ·The Origin of Appraisal Theory | 第24-27页 |
| ·Halliday's Idea of Evaluation | 第24-25页 |
| ·Write it Right Project | 第25-27页 |
| ·Martin's Appraisal Theory: An Overview | 第27-41页 |
| ·Attitude: Value to Participants and Processes | 第28-35页 |
| ·Affect: Modeling Emotional Response | 第29-30页 |
| ·Judgment: Assessing Behavior | 第30-33页 |
| ·Appreciation: Evaluating Products and Processes | 第33-34页 |
| ·Differentiating Appreciation from Affect and Judgment | 第34-35页 |
| ·Engagement: Dialogistic Positioning | 第35-39页 |
| ·Heteroglossic Options | 第36-39页 |
| ·Dialogic Expansion and Dialogic Contraction | 第39页 |
| ·Graduation: The Semantics of Scaling | 第39-41页 |
| ·Applications of Appraisal Theory | 第41-43页 |
| Chapter Four Research Questions and Methodology | 第43-48页 |
| ·Research Questions | 第43-44页 |
| ·Research Methods | 第44-46页 |
| ·Data Collection | 第44-45页 |
| ·Procedures | 第45-46页 |
| ·Labeling of Appraisal Resources: A Sample Analysis | 第46-48页 |
| Chapter Five Results and Discussion | 第48-81页 |
| ·Distributions of Appraisal Resources in Abstracts | 第48-62页 |
| ·An Overview of the Distribution of the Appraisal Resources | 第48-50页 |
| ·Distribution of Attitude in Abstracts | 第50-53页 |
| ·Distributions of the Subcategories of Attitude | 第50-51页 |
| ·Distributions of the Subcategories of Appreciation | 第51-53页 |
| ·Distribution of Engagement in Abstracts | 第53-59页 |
| ·Distributions of Dialogic Contraction and Dialogic Expansion | 第54-56页 |
| ·Distributions of the Subcategories of Engagement | 第56-58页 |
| ·Contraction or Expansion: A Degree of Cline | 第58-59页 |
| ·Distribution of Graduation in Abstracts | 第59-62页 |
| ·Distributions of Force and Focus | 第59-60页 |
| ·Distributions of Grading Up and Down | 第60-62页 |
| ·Realization of Appraisal Resources in Abstracts | 第62-79页 |
| ·Realization of Attitude Resources | 第63-65页 |
| ·Realization of Engagement Resources | 第65-73页 |
| ·Disclaim | 第65-67页 |
| ·Proclaim | 第67-70页 |
| ·Entertain | 第70-72页 |
| ·Attribute | 第72-73页 |
| ·Realization of Graduation Resources in Abstracts | 第73-79页 |
| ·Realization of Grading Explicit Attitude | 第74-77页 |
| ·Resources for Grading Non-Attitudinal Meanings | 第77-79页 |
| ·Compatibility between the Subjectivity of Appraisal Resources and the Objectivity of Academic Abstracts | 第79-81页 |
| Chapter Six Conclusions | 第81-85页 |
| ·Findings of the Study | 第81-83页 |
| ·Implications of the Present Study | 第83-84页 |
| ·Limitations of the Study and Suggestions for Further Study | 第84-85页 |
| References | 第85-90页 |
| Appendix Sources of the Data | 第90-91页 |
