한국일본학회

Differently from other state predicative sentences, it is difficult for ‘discovery タ(ta)’ to appear in adjective sentences. In this paper, the reason for the difficulty was investigated from the viewpoint of assessment property of adjective. The meaning presented by an adjective sentence includes not only the objective meaning of the adjective itself but also the subjective aspect (assessment property) that judges or assesses according to the certain standard of the speaker. The expression ‘美味しかた‘, for example, includes the objective aspect of ‘being delicious' and the assessment of the speaker at that time (past). The fact that the speaker had already assessed as delicious before speaking means that the speaker had already known that it was delicious before speaking. Thus, the speaker cannot show the meaning (discovery タ) that the speaker found out for the first time at the time of speaking. Consequently, discovery タ appears when タ does not show the past assessment of the speaker as 13 below show: 1. when the completion of an action outside the sentence is reflected inside the sentence 2. when the result of the speaker's first prediction is shown 3. when the meaning of the adjective contains only the objective aspect Besides, the discovery タsometimes appears when ノダ(noda) cooccurs with adjective タ(ta). The reason is because ノダ(noda) has a function that shows the meaning that the speaker has come to know what the speaker did not know before speaking. When cooccurring with ノダ(noda) with such a function, awareness タ(ta) becomes possible among discovery タ(ta), because adjectives of タ(ta) type do not show the past assessment although they show the association with the past. In addition, due to such a function of ノダ(noda), actualization タ(ta) among discovery タ(ta) cooccurs awkwardly with ノ ダ(noda). But cooccurrence with ノダ(noda) becomes possible in the case to notify that the situation has been actualized according to the external information beside the speaker.