四年级下册语音知识归纳er water tiger sister computer dinner ruler under number eraser winter after river ir girl bird dirt birth sir circleur nurse hamburger turnar a: arm car card far farm parkal : ball tall wall talk mall walkor : horse fork for born or homework work worldle l apple people table little uncle circle四年级上册语音知识归纳掌握五个元音字母a,e,i,o,u在单词中的基本发音规律。a-e e cake 蛋糕 face 脸 name 名字 make 制作 a