| Abstract | 第5-6页 |
| 摘要 | 第7-10页 |
| Chapter One Introduction | 第10-14页 |
| 1.1 The background of the research | 第10-12页 |
| 1.2 Significance and purpose of the research | 第12-13页 |
| 1.3 Outline of the thesis | 第13-14页 |
| Chapter Two Literature review | 第14-29页 |
| 2.1 Lexical chunks | 第14-18页 |
| 2.1.1 Definition of lexical chunks | 第14-15页 |
| 2.1.2 Classifications of lexical chunks | 第15-17页 |
| 2.1.3 Functions of lexical chunks | 第17-18页 |
| 2.2 The theoretical basis of lexical chunks | 第18-21页 |
| 2.2.1 Psycholinguistic basis | 第18-19页 |
| 2.2.2 The basis of the corpus linguistics | 第19-20页 |
| 2.2.3 The basis of language acquisition research | 第20-21页 |
| 2.3 Studies on lexical chunks abroad and at home | 第21-24页 |
| 2.3.1 Studies of lexical chunks abroad | 第22-23页 |
| 2.3.2 Studies of lexical chunks at home | 第23-24页 |
| 2.4 Lexical chunk approach | 第24-29页 |
| 2.4.1 Lewis’ lexical chunk approach | 第24-25页 |
| 2.4.2 Nattinger and DeCarrie’s lexical chunk approach | 第25-26页 |
| 2.4.3 Related studies on lexical chunk approach at home | 第26-29页 |
| Chapter Three Research methodology | 第29-37页 |
| 3.1 The research questions | 第29页 |
| 3.2 Participants | 第29-30页 |
| 3.3 Instruments | 第30-32页 |
| 3.3.1 Questionnaire | 第30页 |
| 3.3.2 Pre-test and post-test | 第30-31页 |
| 3.3.3 Interview | 第31页 |
| 3.3.4 SPSS 17.0 | 第31-32页 |
| 3.4 Procedures | 第32-36页 |
| 3.4.1 Experimental procedure | 第32-33页 |
| 3.4.2 Teaching procedure | 第33-36页 |
| 3.5 Data collection | 第36-37页 |
| Chapter Four Results and analysis | 第37-50页 |
| 4.1 Analysis and results of the questionnaire | 第37-39页 |
| 4.2 Results and data analysis of the tests | 第39-43页 |
| 4.2.1 The comparison of the pre-test between CC and EC | 第39-40页 |
| 4.2.2 The comparison of the post-test between CC and EC | 第40-41页 |
| 4.2.3 The comparison of the pre-test and post-test of EC | 第41-42页 |
| 4.2.4 The comparison of the pre-test and post-test of CC | 第42-43页 |
| 4.3 Statistical results of lexical chunks used | 第43-47页 |
| 4.3.1 The comparison of the number of lexical chunks between CC and EC in thepretest | 第43-44页 |
| 4.3.2 The comparison of the number of lexical chunks between CC and EC in thepost-test | 第44-45页 |
| 4.3.3 Paired samples t-test of the number of lexical chunks of EC and CC in thepretest and post-test | 第45-47页 |
| 4.4 Correlation analysis of lexical chunks used and composition scores | 第47页 |
| 4.5 Analysis and findings of the interview | 第47-49页 |
| 4.6 Discussion | 第49-50页 |
| Chapter Five Conclusion | 第50-54页 |
| 5.1 Major findings | 第50-51页 |
| 5.2 Implications of the study | 第51-52页 |
| 5.3 Limitations of the study | 第52-53页 |
| 5.4 Suggestions for further study | 第53-54页 |
| Bibliography | 第54-59页 |
| Appendix 1 Questionnaire | 第59-61页 |
| Appendix 2 Writing topic of pre-test | 第61-62页 |
| Appendix 3 Writing topic of post-test | 第62-63页 |
| Appendix 4 Evaluation criteria | 第63-65页 |
| Appendix 5 Results of Pre-questionnaire and Post-questionnaire in EC | 第65-66页 |
| Acknowledgements | 第66-67页 |
| The list of the research papers published by the author | 第67-68页 |
