中国英语专业大学生二语写作中的词汇丰富性研究

An empirical investigation into lexical diversity of Chinese English majors’ TEM writings

本研究从词汇多样性、词汇复杂性、词汇错误三个维度探索中国英语专业学生作文中词汇丰富性的发展趋势。研究语料选自上海四所高校的100名英语专业学生的200份2003年四级、2005年八级考试作文卷。研究结果发现，随着英语学习的深入、英语水平的提高，作文中词汇的多样性和复杂性都有显著提高；而词汇错误，无论是其类型还是其数量都明显增多；文章写得越长，词汇错误出现的频率就越高；冠词错误的出现频率最高，而动词运用情况则明显好转。

This study investigates the development of lexical diversity in Chinese English majors＇ writings from three perspectives ： lexieal variation, lexical sophistication and lexieal errors. It is based on a sample of 200 writings from 2003 TEM4 and 2005 TEM8, involving 100 English majors from four universities in Shanghai. The findings show that as learners further their English language study, they achieve improvement in both lexieal variation and lexical sophis- tication. As for lexical errors, error types and error tokens are on the increase. Among all the major errors, the article error is the most frequent one; however, improvement is found in verb employment.