关键词: 词汇深度知识, 词汇量, 语言综合能力

Abstract: This study investigates the extent to which breadth and depth of vocabulary knowledge are related to second language proficiency levels, and to investigate the relationship between breadth and depth of vocabulary knowledge.168 second year non-English majors were recruited for these purposes. Findings show that both breadth and depth of vocabulary knowledge are effective predictors of second language proficiency levels; depth of vocabulary knowledge makes a unique contribution to the prediction of second language proficiency, over and above the prediction afforded by breadth of vocabulary knowledge; the contribution of depth of vocabulary knowledge is more obvious to the prediction of the use of English and writing; and depth and breadth dimensions of vocabulary knowledge are highly, and positively, correlated, but the development of depth of vocabulary knowledge still falls behind that of breadth of vocabulary knowledge .