英语二语学习者在使用英语时,经常会缺失动词的表示一致关系或时态的屈折后缀。本文探讨了目前对此问题的研究及其对英语学习和教学的启示。文章首先呈现英语二语学习者使用英语时丢失屈折后缀的证据,然后介绍了分布形态学和双机制理论对此问题的解释,在剖析英语二语学习者丢失屈折后缀的原因后,探讨了该研究对英语学习和教学以及测试的意义和启示。 EFL learners often lack the verbal coherence of verbs or the inflectional suffixes of tense when using English. This article explores the current research on this issue and its implications for English learning and teaching. The article first presents the evidence that English second language learners lose their inflected suffix when they use English. Then it introduces the explanation of this problem by the theory of distributional morphology and double mechanism. After analyzing the reasons why English second language learners lose the inflected suffix, Significance and Enlightenment of Research on English Learning and Teaching and Testing.