抄録
This paper describes a case study to teach the differential use of "gen'in" and "riyū". First, we analyzed a corpus of essays to identify any problems. We found that "gen’in" was sometimes used where "riyū" should have been used ("reasons for action" or "arguments for claims and judgements") in the essays of native Chinese speakers. Next, we analyzed the use of these words in published papers, and found that "riyū" is often used to indicate "reasons for action" and "arguments for claims and judgements". These results suggest that it is necessary to indicate the range of use of "gen'in" and to increase students' awareness of the contexts where "riyū" is used.
