Taking the textbook Export Practice and Management as the sample,the author first changed the contents of the book into.txt documents and then used the Corpora software AntConc to study the lexical characteristics of the book.The author made analysis on the following aspects: the type/token ratio,comparative studies on top 500 high frequency words and the generalization of the lexical characteristics of the book.%以Alan E.Branch著的Export Practice and Management教材为例,将该教材正文内容全部转换为电子文本形式,使用语料库语言学统计软件AntConc对该教材词汇用法进行研究。首先,统计教材的类符/形符比;然后,使用词形还原功能统计高频500实词,并与柯林斯常用词表进行对比分析词汇难度,与美国当代英语语料库中的学术、小说的高频500实词进行对比,考察语域造成的词频差异;最后,对教材中单词用法进行归纳总结。
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