英语学习者任务型口语产出中不准确性和非流利性研究

英语学习者任务型口语产出中不准确性和非流利性变化具一定的特点。在每一个任务中，英语学习者的口语不准确性和非流利性总体上和在每个配对指标上均没有显著相关性。复述故事中不准确性总体上以及在每、个指标上均显著高于即席讲话中的不准确性。即席讲话中非流利性总体上高于复述故事中的非流利性。除修补没有显著差异外，即席讲话中的非流利性其他指标均显著高于复述故事中的对应指标。结果表明，学习者口语产出中准确性和流利性具有相对独立性，且受任务类型的影响。

English Learners＇ Inaccuracy and Disfluency across Oral Task Types

The changes of English learners＇ inaccuracy and disfluency across oral task types have certain features. In each task type, there is no significant correlation between inaccuracy and disluency in general or in each pair of their indices. Both in general and in each paired comparison, inaccuracy in story retelling is significantly greater than that in impromptu speaking. In contrast, disfluency in impromptu speaking is generally significantly greater than that in story retelling. So is each index of disfluency except for self-repair, which shows no significant difference across the oral task types. It is concluded that accuracy and fluency of English learners＇ oral production are relatively independent and affected by task types.