内容介绍：Unit 1 单词 序 英文 1 oh 2 e-dog 3 master 4 grade 5 student 6 reading 7 classmate 8 after school 9 slim 10 be good at 11 over 12 classroom 13 dancing 14 swimming 15 age 16 looks 17 cute 18 hobby 19 glad 20