| 中文摘要 | 第1-5页 |
| ABSTRACT | 第5-10页 |
| CHAPTER ONE INTRODUCTION | 第10-14页 |
| ·RESEARCH QUESTIONS | 第10页 |
| ·MOTIVATION | 第10-12页 |
| ·RESEARCH METHODOLOGY | 第12-13页 |
| ·STRUCTURE OF THE THESIS | 第13-14页 |
| CHAPTER TWO THEORETICAL BACKGROUND AND RELEVANT RESEARCHES | 第14-26页 |
| ·SFG’S IDEA FOR DISCOURSE RELATIONS | 第14-16页 |
| ·DEFINITIONS FOR RELATIONS, SCHEMAS, AND STRUCTURES IN THE FRAMEWORK OF RST | 第16-21页 |
| ·Background information | 第16-17页 |
| ·Definitions for relations, schemas, and structure | 第17-21页 |
| ·RELATIONSHIP BETWEEN COHESIVE DEVICES AND COHERENCE | 第21-22页 |
| ·WHY RST AS FRAMEWORK IN THE CURRENT STUDY | 第22-24页 |
| ·Functionalism and coherence | 第22-24页 |
| ·RST trees | 第24页 |
| ·RELEVANT RESEARCHES | 第24-25页 |
| ·SUMMARY AND HYPOTHESIS FOR THE PRESENT STUDY | 第25-26页 |
| CHAPTER THREE RESEARCH DESIGN | 第26-48页 |
| ·CET-4 COMPOSITIONS CORPUS BUILDING | 第26-28页 |
| ·Source of raw corpus | 第26页 |
| ·Principles for samples selection: quantity and topic domain--- genre and register | 第26-27页 |
| ·Raw corpus building and annotation maxims | 第27-28页 |
| ·RST DISCOURSE TREEBANK BUILDING | 第28-44页 |
| ·Segmenting text into elementary discourse units (EDUs) | 第29-31页 |
| ·Building up the discourse structure | 第31-33页 |
| ·Determining nuclearity | 第33-34页 |
| ·Relations definitions | 第34-43页 |
| ·Tagging strategy | 第43-44页 |
| ·Quality assurance | 第44页 |
| ·TREEBANK BUILDING TOOL/ SOFTWARE | 第44-46页 |
| ·RST Tool | 第44-45页 |
| ·Corpus searching software | 第45-46页 |
| ·SUMMARY | 第46-48页 |
| CHAPTER FOUR TREEBANK/ DISCOURSE-TAGGED CORPUS OVERVIEW AND GENERAL MINING | 第48-58页 |
| ·OVERVIEW | 第48页 |
| ·MINING THE RST CORPUS | 第48-49页 |
| ·STUDENTS’GENERAL PREFERENCE FOR DISCOURSE RELATIONS | 第49-50页 |
| ·DATA ANALYSIS | 第50-55页 |
| ·Results on frequencies of relations | 第50-52页 |
| ·Results about the relationship between grade level and frequencies of relations | 第52-55页 |
| ·DISCOURSE RELATIONS AND TEXTUAL COHERENCE | 第55-56页 |
| ·SUMMARY | 第56-58页 |
| CHAPTER FIVE FURTHER MINING OF TREEBANKEXEMPLIFY THE SCORING STANDARD | 第58-78页 |
| ·TEXT-LEVEL ANALYSIS: COMPARISON OF TREE STRUCTURE STYLES AMONG DIFFERENT GRADE LEVEL | 第58-62页 |
| ·General description: three commonly used Tree styles | 第58-61页 |
| ·Tree styles among five grade levels: different schemas applications | 第61-62页 |
| ·MID-LEVEL ANALYSIS: EXAMINATION OF RELATIONS AMONG FIVE GRADE LEVELS | 第62-73页 |
| ·General description of discourse relations in Treebank | 第62-64页 |
| ·Relation distribution across five grade levels | 第64-66页 |
| ·Relations’realizations across five grade levels | 第66-73页 |
| ·LEAF-LEVEL ANALYSIS: COMPARISON OF DISCOURSE MARKERS | 第73-77页 |
| ·General observation of discourse marker | 第73-75页 |
| ·Students’cue phrase preferences | 第75-76页 |
| ·Students’use of markers to trigger relations across five grade levels | 第76-77页 |
| ·SUMMARY | 第77-78页 |
| CHAPTER SIX CONCLUSIONS AND FUTURE WORK | 第78-82页 |
| ·CONCLUSIONS | 第78页 |
| ·CONTRIBUTION OF THIS STUDY | 第78-80页 |
| ·Major findings | 第78-79页 |
| ·Implications | 第79-80页 |
| ·LIMITATIONS AND FUTURE WORK | 第80-82页 |
| ACKNOWLEDGEMENTS | 第82-84页 |
| REFERENCES | 第84-88页 |
| APPENDIX 1 | 第88-90页 |
| APPENDIX 2 | 第90-92页 |
| APPENDIX 3 | 第92-94页 |
| APPENDIX 4 | 第94-96页 |
| APPENDIX 5 | 第96-97页 |
| 独创性声明 | 第97页 |
| 学位论文版权使用授权书 | 第97页 |
