本研究基于名词界性理论，以 170 篇高中、 英语专业本科和英语专业硕士学生作文为研究文本，分析名词可数性的使用特别是误用情况及其发展特征， 借以考察名词界性对名词可数性使用的影响。结果显示，有界名词的使用明显好于无界名词，且有界名词和无界名词间的使用发展趋势完全不同; 同时， 名词界性的可转换性以及英汉两种语族人的不同识解给学习者带来一定的认知负担， 造成名词可数性的使用错误。研究还发现，随着英语水平的提高，名词界性的影响从语际影响转为语内影响。

This study investigated the effect of boundedness on countability by analyzing English learners' use ( misuse in particular) of nouns． The results show an obvious influence of L2 learners' boundedness construal in that in terms of countability， the accuracy rates of bounded nouns are significantly higher than those of unbounded nouns， and the developmental patterns emerging from the accurate rates of bounded and unbounded nouns used by English learners of different English proficiency levels are of total difference， while the patterns for the different kinds of bounded /unbounded nouns are remarkably similar． It is found that the shift in boundedness of a noun and different construals of English and Chinese people result in learners' high cognitive load， thus giving rise to errors in countability． The influence of boundedness is also observed to change from interlangauge one to intralanguage one．