Unit 5《Safety》教案——第三课时教学目标1.使学生能够听说读写各种安全规则:(1)Please use the sidewalk. It’s safe. (2)Don’t play with the fire. It’s dangerous. (3)Please wait for the green light. (4)Don’t run down the stairs. (5)Don’t climb on the window ledge. (6)The light is green. Please...