Abstract
In order to understand and contribute to the education of the Japanese language for foreign student in science field, this paper analyzes the characteristics of the Japanese in University Classes. The results are followings. 1) Lexicon is not so difficult, except the noun. 2) The frequency of adverbs are about 10 percentage. 3) The usage of adverb (lexicon and category) is restricted. 4) 60% of adverbs are used only 1 time or twice. 5) Adverbs 'degree (teido)' 'tens (jisei)' 'order (joretsu)' 'attitude (hatsugen)' are necessary for hearing lessons. There is some difference between Lexicon which need for hearing lessons and Lexicon used in Japanese for general purposes. To teach effectively, we must give students lexicon which used frequently.