本站原创Acknowledgements4-5
Abstract5-7
摘要7-10
Chapter 1 Introduction10-13
1.1 Background of the research10-11
1.2 Aim and significance of the research11-12
1.3 Overview of the thesis12-13
Chapter 2 Literature Review13-23
2.1 Definitions of lexical chunks13-14
2.2 Classification of lexical chunks14-16
2.2.1 From the structural aspect15-16
2.2.2 From the functional aspect16
2.3 Roles of lexical chunks16-20
2.3.1 Faciptating the fluency of language production17-18
2.3.2 Faciptating the accuracy of language production18
2.3.3 Faciptating the appropriateness of language production18-19
2.3.4 Enhancing language processing capabipty19-20
2.4 Previous research on lexical chunks20-23
2.4.1 Overseas research on lexical chunks20-21
2.4.2 Domestic research on lexical chunks21-23
Chapter 3 Design and Methodology23-38
3.1 Research questions23
3.2 Research methods23-26
3.2.1 Corpus -based approach23-25
3.2.2 Quantitative method and quaptative method25-26
3.3 Target materials26
3.4 Software used in the research26-27
3.5 The procedure of selecting lexical chunks27-38
3.5.1 The principles of selecting lexical chunks27-28
3.5.2. The process of making a word pst28-30
3.5.3 The use of software to withdraw word chunks30-37
3.5.4 The selection of useful lexical chunks37-38
Chapter 4 Results and Discussions38-43
4.1 Findings of the features of lexical chunks used by non-Engpsh majors in their compositions38-40
4.2 Findings of the influence of lexical chunk use on non-Engpsh majors' writing40-41
4.3 Discussions about thefindings41-43
Chapter 5 Imppcations on Engpsh Teaching and Learning43-51
5.1 Raising awareness of the lexical chunks43-45
5.1.1 From the teachers' aspect44
5.1.2 From the students' aspect44-45
5.2 Increasing the input of lexical chunks45-48
5.2.1 Doing exercises of identifying lexical chunks45
5.2.2 Doing more reading and recitation45-46
5.2.3 Classifying vocabulary in terms of lexical chunks46
5.2.4 Accumulating useful lexical chunks for writing46-48
5.3 Attaching great importance to the output of lexical chunks48-51
5.3.1 Translating48-49
5.3.2 Making sentences49
5.3.3 Retelpng49
5.3.4 Interacting with others49
5.3.5 Writing complete compositions with the suggested lexical chunks and frameworks49-51
Chapter 6 Conclusion51-53
6.1 Major findings51
6.2 Limitations of the research51-52
6.3 Suggestions for further research52-53
References53-57
Appendix57-65
攻读硕士学位期间科研成果65