| Acknowledgements | 第5-6页 |
| 摘要 | 第6-7页 |
| Abstract | 第7-8页 |
| Chapter 1 Introduction | 第11-15页 |
| 1.1 Background of the Research | 第11-12页 |
| 1.2 Significance of the Research | 第12-14页 |
| 1.3 Structure of the Study | 第14-15页 |
| Chapter 2 Literature Review | 第15-22页 |
| 2.1 Studies of Lexical Phrases in Writing Abroad | 第15-19页 |
| 2.2 Studies of Lexical Phrases in Writing at Home | 第19-22页 |
| Chapter 3 Theoretical Foundation | 第22-34页 |
| 3.1 Lexical Phrases | 第22-29页 |
| 3.1.1 Definition of Lexical Phrases | 第22-23页 |
| 3.1.2 Classifications of Lexical Phrases | 第23-24页 |
| 3.1.3 Functions and Identifications of Lexical Phrases | 第24-29页 |
| 3.2 Input Hypothesis | 第29-34页 |
| 3.2.1 Types and Characteristics of Input | 第29-30页 |
| 3.2.2 Development of Input Hypothesis | 第30-31页 |
| 3.2.3 Basic Comprehension of Input Hypothesis | 第31-34页 |
| Chapter 4 Methodology | 第34-44页 |
| 4.1 Design of the Research | 第34-39页 |
| 4.1.1 Research Objectives and Questions | 第34页 |
| 4.1.2 Time and Subject | 第34-35页 |
| 4.1.3 Instruments | 第35-38页 |
| 4.1.4 Data Collection and Analysis | 第38-39页 |
| 4.2 Input Procedures of Lexical Phrases | 第39-43页 |
| 4.2.1 Awareness-raising of Lexical Phrases | 第39-40页 |
| 4.2.2 Activities of Inputting Lexical Phrases | 第40-42页 |
| 4.2.3 The Role of Teacher and Students in Input of Lexical Phrases | 第42-43页 |
| 4.3 Methods of Quantitative and Qualitative Analysis | 第43-44页 |
| Chapter 5 Discussion and Analysis of Data Collected | 第44-62页 |
| 5.1 Difficulties Concerning Lexical Phrases in BEC Writing | 第44-47页 |
| 5.1.1 Shortage of Lexical Phrases | 第44-45页 |
| 5.1.2 Ineffective Ways of Memorizing Lexical Phrases | 第45-47页 |
| 5.1.3 Insufficient Writing Practice with Lexical Phrases | 第47页 |
| 5.2 Correlation between Lexical Phrases and BEC Writing Proficiency | 第47-53页 |
| 5.2.1 Writing Proficiency before Experiment in the Two Classes | 第48-49页 |
| 5.2.2 The Effect of Lexical Phrase Input on BEC Writing | 第49-52页 |
| 5.2.3. Relationship between Lexical Phrases and BEC Writing Proficiency | 第52-53页 |
| 5.3 Impact of Lexical Approach in BEC Writing | 第53-62页 |
| 5.3.1 Emphasis on Lexical Phrases | 第53-54页 |
| 5.3.2 Effect of Lexical Phrases from Student's Perspective | 第54-57页 |
| 5.3.3 Diversification of Lexical Phrases in Students' BEC Writing | 第57-62页 |
| Chapter 6 Conclusion | 第62-67页 |
| 6.1 Major Findings | 第62-64页 |
| 6.2 Limitation of This Research | 第64-65页 |
| 6.3 Suggestions for Further Research | 第65-67页 |
| Bibliography | 第67-72页 |
| Appendix Ⅰ | 第72-75页 |
| Appendix Ⅱ | 第75-77页 |
| Appendix Ⅲ | 第77-78页 |
| Appendix Ⅳ | 第78-80页 |
| Appendix Ⅴ | 第80-82页 |
| Appendix Ⅵ | 第82-83页 |
| Appendix Ⅶ | 第83-84页 |
| Papers Published During the Study of M.A. Degree | 第84页 |
