1. on time 准时,按时 in time及时
2. listen to music 听音乐 listen与hear区别,listen只是听得动作,hear是听到的结果,
3. in class 在课上 in the classroom在教室里
4. be late for 迟到=arrive late for
6. be quiet 安静 ;quite 是“非常”的意思,
7. do the dishes = wash the dishes清洗餐具
10. be noisy 吵闹noisy是形容词,noise是名词,意为噪音
13. have fun=have a good time=enjoy oneself 玩得高兴
16. on school nights在学校的夜晚
19. after school 放学后,反义词,