Unit 4 Don't eat in class. Period 1 eat in class listen to music arrive late for class run in the hallways fight wear a hat wear the school uniform eat outside eat in the dining hall Bring food to school Take phones Be on time Be quiet Be noisy talk in class do homework puter games watch TV on weekdays read a book play er in the street draw on the wall Don’t walk. Do you know these signs(图标) of traffic rules(交通规则)? Walk. Turn right. Don’t turn right. Do we have rules (规则)at school? Don’t eat in class. Don’t listen to music in class. Don’t arrive late for class. Don’t be late for class.