| Acknowledgements | 第1-6页 |
| Abstract | 第6-8页 |
| 内容摘要 | 第8-9页 |
| List of Figures and Tables | 第9-10页 |
| List of Abbreviations | 第10-13页 |
| Chapter 1 Introduction | 第13-17页 |
| ·Research Background | 第13-14页 |
| ·Research Significance and Aims | 第14-15页 |
| ·Research Questions | 第15-16页 |
| ·Structure of the Thesis | 第16-17页 |
| Chapter 2 Literature Review | 第17-30页 |
| ·Phraseology | 第17-22页 |
| ·Extended Units of Meaning | 第19-20页 |
| ·Patterns | 第20-21页 |
| ·Recurrent Word Combinations | 第21-22页 |
| ·Lexical Bundles | 第22页 |
| ·Collocational Frameworks and Related Studies | 第22-26页 |
| ·Related Researches Abroad | 第23-25页 |
| ·Related Researches in China | 第25-26页 |
| ·Swales' CARS Model | 第26-30页 |
| ·Concept of Genre | 第26-27页 |
| ·The CARS Model | 第27-30页 |
| Chapter 3 Methodology | 第30-39页 |
| ·Corpus Establishment | 第30-32页 |
| ·Analyzing Tools and Statistical Measures | 第32-35页 |
| ·KfNgram—the Extraction Tool | 第33页 |
| ·WordSmith 4.0—me Retrieval Tool | 第33-34页 |
| ·CalcZ—the Statistical Tool | 第34-35页 |
| ·Research Procedures | 第35-39页 |
| Chapter 4 The~* of in Medical RA Introductions | 第39-60页 |
| ·Collocates of the~* of | 第39-47页 |
| ·Overall Features of Collocates in the~* of | 第39-43页 |
| ·Semantic Categories of Collocates in the~* of | 第43-47页 |
| ·The~* of in CARS Model | 第47-55页 |
| ·The effect(s) of in CARS Model | 第50-52页 |
| ·The presence/advent of in CARS Model | 第52-53页 |
| ·The majority of in CARS Model | 第53-54页 |
| ·The importance of in CARS Model | 第54页 |
| ·The aim(s)/purpose/objective(s) of in CARS Model | 第54-55页 |
| ·Functional Characteristics of the~* of | 第55-58页 |
| ·High Selectivity for Collocational Elements | 第55-56页 |
| ·Favorable Ability of Compacting Information and Increasing Objectivity | 第56-57页 |
| ·Great Diversity in Communicative Functions | 第57页 |
| ·High Conventionality of Fulfilling Communicative Functions | 第57-58页 |
| ·Summary | 第58-60页 |
| Chapter 5 A/an~* of in Medical RA Introductions | 第60-72页 |
| ·Collocates of a/an~* of | 第60-65页 |
| ·Overall Features of Collocates in a/an~* of | 第60-62页 |
| ·Semantic Categories of Collocates in a/an~* of | 第62-65页 |
| ·A/an~* of in CARS Model | 第65-70页 |
| ·A number of in CARS Model | 第67-68页 |
| ·A combination of in CARS Model | 第68-69页 |
| ·A member of in CARS Model | 第69页 |
| ·A consequence of in CARS Model | 第69-70页 |
| ·Functional Characteristics of A/an~* of | 第70页 |
| ·Summary | 第70-72页 |
| Chapter 6 Conclusions | 第72-76页 |
| ·Summary of the Study | 第72-74页 |
| ·Limitations of the Study | 第74-76页 |
| References | 第76-81页 |
