| Acknowledgement | 第1-5页 |
| Abstract | 第5-7页 |
| 摘要 | 第7-10页 |
| Figures and Tables | 第10-11页 |
| Abbreviations | 第11-12页 |
| Chapter 1 Introduction | 第12-14页 |
| ·Background of the study | 第12页 |
| ·Purpose and significance of the study | 第12-13页 |
| ·Organization of the thesis | 第13-14页 |
| Chapter 2 Related Research Review and Theories | 第14-27页 |
| ·Related research review | 第14-17页 |
| ·Related research abroad | 第14-15页 |
| ·Related research in China | 第15-17页 |
| ·Related Theories | 第17-27页 |
| ·Schema Theory | 第17-19页 |
| ·Working Memory | 第19-20页 |
| ·Mental Lexicon | 第20-21页 |
| ·Cohension Theory | 第21-24页 |
| ·Krashen's Input Theory | 第24-27页 |
| Chapter 3 Research Design | 第27-40页 |
| ·Research questions | 第27页 |
| ·Research subjects | 第27-28页 |
| ·Research instrument and methodology | 第28页 |
| ·Research procedure | 第28-39页 |
| ·Procedure 1:The choosing of research subjects | 第28-29页 |
| ·Procedure 2:Test the normality of data distributions | 第29-35页 |
| ·Procedure 3:Create a scatterplot graph | 第35-36页 |
| ·Procedure 4:Conduct correlation study of the sample | 第36-37页 |
| ·Procedure 5:Test linear regression of the sample | 第37-39页 |
| ·A summary of research results | 第39-40页 |
| Chapter 4 Cause Analysis of Research Results | 第40-55页 |
| ·Processes of four language skills | 第40-49页 |
| ·The writing process | 第40-42页 |
| ·The listening process | 第42-45页 |
| ·The speaking process | 第45-47页 |
| ·The reading process | 第47-49页 |
| ·Relationships between English writing and the other three language skills | 第49-53页 |
| ·The relationship between English writing and English listening | 第49-51页 |
| ·The relationship between English writing and English speaking | 第51-52页 |
| ·The relationship between English writing and English reading | 第52-53页 |
| ·Summary | 第53-55页 |
| Chapter 5 Implications and Conclusion | 第55-58页 |
| ·Implications | 第55-57页 |
| ·Cultivate students' English writing interest, stimulate students' writing motivation | 第55页 |
| ·Provide students with abundant and comprehensible language input | 第55-56页 |
| ·Seek the most appropriate English writing teaching method | 第56页 |
| ·Pay attention to the grammar | 第56-57页 |
| ·Conclusion | 第57-58页 |
| References | 第58-61页 |
| Appendix 1 CET4 DATA | 第61-72页 |
| 攻读硕士学位期间科研成果 | 第72页 |
