抄録
This study, based on data from I-JAS, investigates the usage of topic noun phrases by Chinese-speaking learners of Japanese. The target participants were Japanese native speakers consisting of 17 students aged 20 to 32, and Chinese-speaking learners of Japanese consisting of 31 students aged 19 to 24. All of the learners resided overseas (in China) and were native speakers of Mandarin Chinese. The results indicate that: 1) Learners tend to excessively use "wa" when expanding topic noun phrases; 2) The use of [ pronoun + "wa"] did not appear in the data from native Japanese speakers, indicating it is a characteristic unique to learners of Japanese.
https://ror.org/039pch476 
