| 摘要 | 第4-6页 |
| ABSTRACT | 第6-7页 |
| CHAPTERⅠ INTRODUCTION | 第11-14页 |
| 1.1 Research Background | 第11-12页 |
| 1.2 Significance of the Research | 第12-13页 |
| 1.3 Organization of the Thesis | 第13-14页 |
| CHAPTER Ⅱ LITERATURE REVIEW | 第14-25页 |
| 2.1 The Definition of Lexical Cohesion | 第14-15页 |
| 2.2 The Classification of Lexical Cohesion | 第15-18页 |
| 2.3 Studies on Lexical Cohesion abroad and at home | 第18-24页 |
| 2.3.1 Studies on Lexical Cohesion abroad | 第18-20页 |
| 2.3.2 Studies on Lexical Cohesion at home | 第20-24页 |
| 2.4 A Summary of Previous Studies on Lexical Cohesion | 第24-25页 |
| CHAPTER Ⅲ METHODOLOGY | 第25-35页 |
| 3.1 Research Questions | 第25页 |
| 3.2 Data Collection | 第25-27页 |
| 3.3 Data Processing | 第27-35页 |
| CHAPTER Ⅳ RESULTS AND DISCUSSION | 第35-61页 |
| 4.1 The Frequency of Lexical Cohesion in News Reports and Academic Abstracts | 第35-37页 |
| 4.1.1 The frequency of Lexical Cohesion in news reports | 第35-36页 |
| 4.1.2 The frequency of Lexical Cohesion in academic abstracts | 第36-37页 |
| 4.2 The Types of Lexical Cohesion Used in News Reports and Academic Abstracts | 第37-55页 |
| 4.2.1 The types of Lexical Cohesion used in news reports | 第37-47页 |
| 4.2.1.1 The types of Reiteration used in news reports | 第37-44页 |
| 4.2.1.2 The types of Collocation used in news reports | 第44-47页 |
| 4.2.2 The types of Lexical Cohesion used in academic abstracts | 第47-55页 |
| 4.2.2.1 The types of Reiteration used in academic abstracts | 第47-53页 |
| 4.2.2.2 The types of Collocation used in academic abstracts | 第53-55页 |
| 4.3 The Parallels and Differences in the Use of Lexical Cohesion between News Reportsand Academic Abstracts | 第55-61页 |
| 4.3.1 The parallels and differences in the frequency of Lexical Cohesion betweennews reports and academic abstracts | 第55-59页 |
| 4.3.1.1 The parallels and differences in the frequency of Reiteration between news reportsand academic abstracts | 第55-58页 |
| 4.3.1.2 The parallels and differences in the frequency of Collocation between news reportsand academic abstracts | 第58-59页 |
| 4.3.2 The parallels and differences in the types of Lexical Cohesion between newsreports and academic abstracts | 第59-61页 |
| 4.3.2.1 The parallels and differences in the types of Reiteration between news reports andacademic abstracts | 第59-60页 |
| 4.3.2.2 The parallels and differences in the types of Collocation between news reports andacademic abstracts | 第60-61页 |
| CHAPTER Ⅴ CONCLUSION | 第61-64页 |
| 5.1 Major Findings | 第61-62页 |
| 5.2 Implications | 第62页 |
| 5.3 Limitations and Suggestions for Future Study | 第62-64页 |
| REFERENCES | 第64-68页 |
| APPENDIX Ⅰ | 第68-69页 |
| APPENDIX Ⅱ | 第69-71页 |
| 攻读学位期间取得的研究成果 | 第71-72页 |
| ACKNOWLEDGEMENTS | 第72页 |
