摘要本文以英语专业二年级一个普通班和实验班学生所写的议论文为语料，探讨了英语专业学生议论文写作中的词块类型。本文结合文献对词块的定义与分类，从语料中提取了七种目标词块，探讨词块使用类型的整体特点及其与英语综合水平之间的关系，并分析词块使用错误的原因。研究发现：不同英语水平的学生在议论文中使用的词块类型在分布趋势上是一致的，但是英语水平较高的学生所使用的词块类型较为丰富。不同英语水平的学生在作文中均出现类似的词块使用错误。英语水平较高的学生在词块使用方面同样出现语法准确性问题。21148
关键词  议论文写作   词块类型   英语专业学生
 毕业论文外文摘要
Title  An Analysis of Types of Lexical Chunks in English Majors’ Argumentative Writings
Abstract
Taking the argumentative writings written by English sophomores in a regular class and an experimental class as data, the thesis explores the use of types of lexical chunks in English majors’ argumentative writings. Based on the definitions and classifications of lexical chunks made in previous studies, the author extracts seven types of lexical chunks from the texts. The thesis aims to get a clear picture of characteristics in using types of lexical chunks in argumentative writings of English majors, probe into the relationship between using types of lexical chunks and language proficiency, and analyze the reasons for mistakes in using lexical chunks. The findings indicate that lexical chunks are distributed in the same way in argumentative writings written by students of different language proficiency; however, students of better language proficiency use more persified lexical chunks than those of lower language proficiency. Students of different language proficiency all have made similar mistakes in using lexical chunks. This shows that students of higher language proficiency also lack grammatical accuracy in using lexical chunks.
Keywords   Argumentative Writings   Types of Lexical Chunks   English Majors
 Table of Contents
1 Introduction 1
2 Previous Studies on Lexical Chunks...1
2.1 Definition and Classification of Lexical Chunks..2
2.2 Studies on Lexical Chunks3
3 Design of Research5
3.1 Research Questions6
3.2 Description of Subjects6
3.3 Data Analysis 6
4 Results and Discussion...7
4.1 Distribution of Different Lexical Chunks in English Majors’ Argumentative Writings7
4.2 Diversity of Lexical Chunks in English Majors’ Argumentative Writings..9
4.3 Problems in Using Lexical Chunks in English Majors’ Argumentative Writings16
Conclusion 20
Acknowledgements22
Bibliography23
1    Introduction
People have many fixed usages in language use, just like their naturally-formed habits in their behaviors. Since some communication contexts in our daily life occur frequently and are stale, people have relatively fixed communicative structures in these contexts. For example, when people share ideas with their friends, they often adopt these structures: I think that, I hold that... These are called lexical chunks. With the rapid development of corpus linguistics, the status and role of lexical chunks have aroused concern of more and more linguists. There is a wide consensus in the field of second language teaching and study that lexical chunks are playing an important role in second language acquisition.

However, researches on abilities of using lexical chunks of English majors are not quite commonly seen in our country, especially on abilities of using lexical chunks in students’ argumentative writings. This research was conducted among English majors with the aim to get a clear picture of the use of types of lexical chunks in English majors’ argumentative writings, probe into the relationship between use of types of chunks and second language proficiency and analyze the reasons for mistakes in the use of chunks to help students have a better command of chunks and greatly improve their writings. 英语专业学生议论文写作中词块类型的调查研究:http://www.youerw.com/yingyu/lunwen_13227.html