2、()s→()—sūw→ō—()2、找出声母、前鼻、韵母、后鼻韵母分别写在四线格里。fangindtongmnunengzhwenanring声母_______________________________前鼻韵母_______________________________后鼻韵母_______________________________3、把拼音补充完整。zhi________ri____ci ____yi________ye____ ____yin____ ____4、按单韵母的先后顺序排序。5、按要求分类。a s d o zi m si p ü yi shi