This paper aims to find out how Chinese senior high school students use booster 'very' in writing by means of contrastive interlanguage analysis (CIA). The writing corpora of Grade Three students in the Chinese senior high schools, 04MET and 05MET, and the native speakers' writing corpora BROWN K&L are analyzed and compared with the help of the tools like MCO and AntConc. The findings of this study reveal the tendency of the usage of booster 'very' among Chinese senior high school students. Based on the above corpus analysis, this paper infers three pedagogical implications for English teaching and learning.
