| 摘要 | 第1-6页 |
| Abstract | 第6-10页 |
| 1 Introduction | 第10-13页 |
| ·Background of the Study | 第10-11页 |
| ·Significance and Objective of the Study | 第11页 |
| ·Layout of the Study | 第11-13页 |
| 2 Literature Review | 第13-26页 |
| ·Definition of Lexical Chunks | 第13-14页 |
| ·Classifications of Lexical Chunks | 第14-16页 |
| ·Functions of Lexical Chunks | 第16-18页 |
| ·Growing Learners’ Motivation | 第16页 |
| ·Promoting Native-like Fluency and Accuracy | 第16-17页 |
| ·Enhancing the Ability of Discourse Organization | 第17-18页 |
| ·Rationale of Lexical Chunks Instruction | 第18-20页 |
| ·Lexical Approach | 第18-19页 |
| ·Schema Theory | 第19页 |
| ·Psychological Linguistics | 第19-20页 |
| ·Lexical Chunks and College Students’ English Writing | 第20-22页 |
| ·The Nature of Writing | 第20-22页 |
| ·Application of Lexical Approach to College Students’ English Writing | 第22页 |
| ·Previous Studies of Lexical Approach at Home and Abroad | 第22-26页 |
| ·Related Researches of Lexical Approach Abroad | 第23-24页 |
| ·Related Researches of Lexical Approach at Home | 第24-25页 |
| ·Gap of the Previous researches of Lexical Approach | 第25-26页 |
| 3 Research Methodology | 第26-33页 |
| ·Research Purpose and Research Questions | 第26页 |
| ·Methods | 第26-32页 |
| ·Subjects | 第26页 |
| ·Instruments | 第26-27页 |
| ·Procedures | 第27-32页 |
| ·Data Collection | 第32-33页 |
| 4 Data Analysis and Discussion | 第33-39页 |
| ·Results of the Experiment | 第33-35页 |
| ·Comparison of Composition Scores Between Control Group and Experiment Group in the Pretest | 第33-34页 |
| ·Comparison of Composition Scores Between Control Group and Experiment Group in the Posttest | 第34页 |
| ·Comparison of Writing Scores Between Intergroup in the Pretest and Posttest | 第34-35页 |
| ·Questionnaire Analysis | 第35-39页 |
| 5 Conclusions | 第39-42页 |
| ·Major Findings of the Present Study | 第39页 |
| ·Pedagogical Implications | 第39-40页 |
| ·Limitations of the Study | 第40-41页 |
| ·Recommendation for Future Researches | 第41-42页 |
| References | 第42-45页 |
| Appendix A | 第45-46页 |
| Appendix B | 第46-47页 |
| Appendix C | 第47-48页 |
| Appendix D | 第48-50页 |
| Acknowledgements | 第50页 |
