English vocabulary incidental acquisition has been of interest to scholars and English teachers. Through reading the literature, the author found that the current research on the effect of input enhancement on English vocabulary incidental acquisition mainly focuses on annotation effect. There is little research on other enhancement modes, such as bold words, underline words and italic words. And the effects of incidental vocabulary acquisition on different parts of speech are also worth exploring. Through experimental research, the authors found that: (1) Bold words can enhance junior high school students' English vocabulary incidental acquisition and retention. (2) The acquisition effect of Verbs is the best and the acquisition effect of Adjectives is the worst. It is proposed that teachers can use input enhancement method such as bold words to promote students' English vocabulary incidental acquisition in their regular English teaching. In addition, teachers should frequently require students to review the acquired vocabulary to avoid forgetting.

Chenghang He, Lanzhen Cai, Xiaoxue Li. The Effect of Input Enhancement on Vocabulary Incidental Acquisition in Junior High School English Reading Instruction. International Journal of Frontiers in Sociology (2024), Vol. 6, Issue 7: 7-14. https://doi.org/10.25236/IJFS.2024.060702.

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