语言学家及语言教学工作者普遍认为词汇是语言能力的重要组成部分。在当前的大学英语学习中,词汇学习基本在学生的自主学习中完成。本文通过实证研究证明教师对学生词汇学习行为的适时监控应能提升英语学习者词汇学习的效率和效果。 Linguists and language teaching workers generally believe that vocabulary is an important part of language skills. In the current college English learning, vocabulary learning is basically completed in the students’ autonomous learning. In this paper, empirical research proves that teachers’ timely monitoring of students’ vocabulary learning behavior should enhance the efficiency and effectiveness of English learners’ vocabulary learning.