词汇产出能力与英语口语水平的相关性研究

基于高职英语学习者的限时口语测试语料，分析词汇产出能力与口语水平的相关性。结果表明：1）口语水平与词汇广度存在一定的正相关关系，口语水平越高，词汇产出速度越快，低频词、实词使用比例越高，词汇的重复率越低；2）1：2语水平与词汇深度存在一定的正相关关系，1：2语水平越高，词汇产出的语义搭配及语用准确性越高；3）词汇广度与口语水平存在显著相关性，表现为产出性口语词汇的流利性、多样性与密度对口语水平有较强的预测力或解释力；4）词汇深度与1：2语水平存在显著相关性，产出性口语词汇的语法、语义搭配及语用准确性越高，其口语水平越高。

The Correlations of Vocabulary Productivity and Oral Performance

Based on the timed oral test corpus,the paper analyzed the correlations of vocabulary productivity and oral performance for vocational English learners.Results show that: 1.there exists a positive correlation between oral performance and productive width;if the oral performance is better and better,the production speed will be faster and faster,the number of low frequency and content words will be more and more,and the repetitive rate of the words will be lower and lower;2.there exists a positive correlation between oral performance and productive depth;the better the oral performance,the higher the collocational and pragmatic accuracy of the productive words;3.the productive width is significantly correlated with the oral performance,which is shown by the strong predictive or explanatory power of the productive fluency,richness and density to oral performance;4.the productive depth is significantly correlated with the oral performance;the higher the grammatic,semantic collocational and pragmatic accuracy,the better the oral performance.