| Acknowledgement | 第4-5页 |
| Abstract | 第5-6页 |
| 摘要 | 第7-8页 |
| List of Tables | 第8-9页 |
| List of Charts | 第9-10页 |
| Contents | 第10-12页 |
| Chapter One Introduction | 第12-16页 |
| 1.1 Background | 第12-14页 |
| 1.2 Significance and Purpose of the study | 第14-15页 |
| 1.3 Outline of the Thesis | 第15-16页 |
| Chapter Two Literature Review | 第16-35页 |
| 2.1 Lexical Chunks | 第16-21页 |
| 2.1.1 Definition of lexical chunks | 第16-18页 |
| 2.1.2 Categories and Characteristics of Lexical Chunks | 第18-21页 |
| 2.2 The theoretical basis of Lexical Chunk Theory | 第21-25页 |
| 2.2.1 Psycholinguistic Basis | 第21-22页 |
| 2.2.2 The Basis of the Corpus Linguistics | 第22-23页 |
| 2.2.3 The Basis of Language Acquisition Research | 第23-25页 |
| 2.3 The Previous Studies on Lexical Chunks | 第25-27页 |
| 2.4 Lexical Approach and Language Teaching | 第27-30页 |
| 2.4.1 Lewis's Lexical Approach and Language Teaching | 第27-29页 |
| 2.4.2 Nattinger & DeCarrie's Lexical Phrases and Language Teaching | 第29-30页 |
| 2.5 The Significance of Lexical Chunks in English Writing | 第30-35页 |
| 2.5.1 Requirements and Practice of College English Writing | 第30-31页 |
| 2.5.2 The Typical Problems of the College Students' English Writing | 第31-33页 |
| 2.5.3 The Advantages of Applying Lexical Approach to English Writing Class | 第33-35页 |
| Chapter Three Research Methodology | 第35-46页 |
| 3.1 Research Questions | 第35-36页 |
| 3.2 Subjects | 第36-37页 |
| 3.2.1 Experimental Subjects | 第36-37页 |
| 3.2.2 Interview Subjects | 第37页 |
| 3.3 Instruments | 第37-38页 |
| 3.3.1 Pre-test and Post-test | 第37-38页 |
| 3.3.2 Interview | 第38页 |
| 3.4 Procedure | 第38-39页 |
| 3.5 Teaching Implication in the EC | 第39-45页 |
| 3.5.1 Preparation | 第39-40页 |
| 3.5.2 Teaching Material | 第40页 |
| 3.5.3 Teaching Activities in the Experimental Class | 第40-43页 |
| 3.5.4 Lexical approach to English Writing Teaching Strategies in the EC | 第43-45页 |
| 3.6 Data Collection | 第45-46页 |
| Chapter Four Results and Discussion | 第46-62页 |
| 4.1 Result Analysis | 第46-62页 |
| 4.1.1 Comparison of Final Exam Score and Writing Score between CC and EC | 第46-49页 |
| 4.1.2 Comparison of Scores of Three Writing Tests between CC and EC | 第49-52页 |
| 4.1.3 Comparison of Scores of Three Writing Tests With-in CC and EC | 第52-55页 |
| 4.1.4 Statistic Result Comparison of First Phase and Second Phase of CC and EC | 第55-58页 |
| 4.1.5 Statistic Result of Distribution of Scores in CC and EC | 第58-59页 |
| 4.1.6 Results and Analysis of the Interview | 第59-62页 |
| Chapter Five Conclusion | 第62-70页 |
| 5.1 Major Findings | 第62页 |
| 5.2 Experiment Enlightenment and Teaching Suggestions | 第62-68页 |
| 5.2.1 Lexical Chunks Approach:The Modification of the Traditional Vocabulary Teaching and Learning | 第63-66页 |
| 5.2.2 The Syllabus Design for Different Proficiency Learners and the Selection of the Course Books | 第66-67页 |
| 5.2.3 Promoting Forming Independent Learning Habit | 第67-68页 |
| 5.3 Limitations and Suggestions for Further Research | 第68-70页 |
| References | 第70-73页 |
| Appendix | 第73页 |
