| Acknowledge | 第1-5页 |
| 摘要 | 第5-6页 |
| Abstract | 第6-10页 |
| Chapter 1 Introduction | 第10-13页 |
| ·Research background | 第10页 |
| ·Significance of the present study | 第10-11页 |
| ·Research design | 第11-12页 |
| ·Data collection | 第11页 |
| ·Research method and procedure | 第11-12页 |
| ·Structure of the thesis | 第12-13页 |
| Chapter 2 Literature Review | 第13-22页 |
| ·Studies on thematic progression(TP)abroad | 第13-15页 |
| ·Studies on TP patterns in China | 第15-19页 |
| ·TP patterns proposed by徐盛桓 | 第15页 |
| ·TP patterns proposed by黄国文 | 第15-16页 |
| ·TP patterns proposed by朱永生 | 第16-17页 |
| ·TP patterns proposed by胡壮麟 | 第17页 |
| ·TP patterns proposed by黄衍 | 第17-18页 |
| ·Other TP patterns | 第18-19页 |
| ·Review of TP patterns in texts of different genres | 第19-21页 |
| ·Previous studies abroad | 第19-20页 |
| ·Previous studies in China | 第20-21页 |
| ·Summary | 第21-22页 |
| Chapter 3 Thematic Theory | 第22-30页 |
| ·Theme and rheme | 第22-28页 |
| ·Types of theme | 第23-26页 |
| ·Thematic structure | 第26-28页 |
| ·A Brief review of thematic theory | 第28-30页 |
| ·Mathesius' thematic theory | 第28-29页 |
| ·Halliday's thematic theory | 第29-30页 |
| Chapter 4 TP patterns in Chinese and English Popular Scientific Texts | 第30-39页 |
| ·Analytical procedure | 第30页 |
| ·Logical semantic relations in TP patterns | 第30-32页 |
| ·Analysis of two samples | 第32-36页 |
| ·One sample analysis of one English popular scientific text | 第32-34页 |
| ·One sample analysis of Chinese popular scientific text | 第34-36页 |
| ·Discussion of TP patterns in English and Chinese popular scientific texts | 第36-38页 |
| ·Distribution of TP patterns in English and Chinese popular scientific texts | 第36-37页 |
| ·Similarities and differences | 第37-38页 |
| ·Summary | 第38-39页 |
| Chapter 5 Main Reasons of Similarities and Differences | 第39-44页 |
| ·Similar choices determined by communicative functions of TP patterns | 第39-40页 |
| ·Linguistic features and ways of thinking contributing to the different choices of TP patterns | 第40-42页 |
| ·Different ways of thinking | 第40页 |
| ·Different linguistic features | 第40-42页 |
| ·Summary | 第42-44页 |
| Chapter 6 Conclusion | 第44-46页 |
| ·Findings | 第44页 |
| ·Implications | 第44-45页 |
| ·Limitations and suggestions for further study | 第45-46页 |
| Bibliography | 第46-47页 |
