| Abstract | 第1-9页 |
| 摘要 | 第9-13页 |
| Chapter 1 Introduction | 第13-16页 |
| ·Purpose of the study | 第13页 |
| ·Significance of the study | 第13-14页 |
| ·Organization of the thesis | 第14-16页 |
| Chapter 2 Literature Review | 第16-37页 |
| ·Dominant approaches to teaching EFL writing | 第16-18页 |
| ·The product approach | 第16-17页 |
| ·The process approach | 第17页 |
| ·Problems existing in writing course | 第17-18页 |
| ·The lexical approach | 第18-20页 |
| ·Lexical chunks | 第20-29页 |
| ·Definitions of lexical chunks | 第20页 |
| ·Classifications of lexical chunks | 第20-25页 |
| ·Nattinger and DeCarrico’s classification | 第20-23页 |
| ·Lewis’classification | 第23-25页 |
| ·Functions of lexical chunks | 第25-26页 |
| ·How to teach lexical chunks-conducting consciousness raising activities | 第26-29页 |
| ·The importance of consciousness raising | 第26-27页 |
| ·Types of consciousness raising activities | 第27-29页 |
| ·The importance of using lexical chunks in writing | 第29-31页 |
| ·Studies on the influence of lexical chunks on language acquisition | 第31-33页 |
| ·Studies on lexical chunks in English teaching | 第33-37页 |
| Chapter 3 Theoretical Framework | 第37-40页 |
| ·The chunking theory | 第37页 |
| ·The connectionism | 第37-38页 |
| ·Theory of dual language processing systems | 第38页 |
| ·Gestalt theory and language processing | 第38-40页 |
| Chapter 4 Research Design | 第40-48页 |
| ·Hypothesis | 第40页 |
| ·Subjects | 第40页 |
| ·Instruments | 第40页 |
| ·Procedures | 第40-48页 |
| ·The pre-test | 第40-41页 |
| ·Treatment | 第41-46页 |
| ·Teaching activities in the EG | 第41-45页 |
| ·Teaching activities in the CG | 第45-46页 |
| ·The post-test | 第46-47页 |
| ·The questionnaire | 第47-48页 |
| Chapter 5 Data Collection and Analysis | 第48-58页 |
| ·Results of the pre-test | 第48-49页 |
| ·Results of the post-test | 第49-54页 |
| ·Comparison of the frequency of lexical chunks used in the EG and CG | 第49-51页 |
| ·Statistical analyses of the writings between the EG and CG | 第51-52页 |
| ·Statistical analyses of the writings of the pre-test and post-test in both the EG and CG | 第52-53页 |
| ·Correlation of chunk using and English writing | 第53-54页 |
| ·Results of the questionnaire | 第54-58页 |
| ·Students’attitudes toward the lexical approach | 第54-55页 |
| ·Strategies students use to identify lexical chunks | 第55-56页 |
| ·Strategies students use to consolidate lexical chunks | 第56-58页 |
| Chapter 6 Discussion | 第58-63页 |
| ·The effect of the lexical approach on students’writing | 第58-59页 |
| ·The effect of the lexical approach on the accuracy of lexical choices in students’ writing | 第59页 |
| ·The effect of the lexical approach on the coherence of students’ writing | 第59-60页 |
| ·Discussion about students’ misuse of lexical chunks | 第60-63页 |
| Chapter 7 Conclusion and Implication | 第63-67页 |
| ·Major findings | 第63页 |
| ·Pedagogical implication | 第63-65页 |
| ·Limitations and suggestions for future research | 第65-67页 |
| References | 第67-74页 |
| Appendices | 第74-87页 |
| Acknowledgements | 第87页 |
