Abstract

Vocabulary knowledge is the foundation of English learning. This study, based on vocabulary knowledge frameworks, aims to further explore the effect of two dimensions of vocabulary knowledge i.e. breadth and depth of vocabulary knowledge, on two types of reading comprehension tasks, i.e., standard multiple choice question and summary writing in Chinese EFL context. 124 English majors in a Chinese university were randomly selected, and their vocabulary knowledge and reading comprehension ability were tested. The results of the study showed that both breadth and depth of vocabulary knowledge make contributions to reading comprehension; the breadth of vocabulary knowledge has a greater predictive power on multiple-choice reading comprehension than the depth of vocabulary, while vocabulary depth was the stronger predictor of post-reading summary writing. The results indicate that teachers need to attend to vocabulary knowledge and improve learners’ reading ability by enhancing their vocabulary knowledge.

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