Have a good habit !litter on the floor ! 乱丢垃圾Don’tspeak with mouth full ! 含着满嘴食物说话Don’ttalk loudly in class ! 上课大声喧哗Don’tmake a noise ! 制造噪音Don’tkeep quite ! 保持安静Please wait in line ! 排队等候Please (1) bad habits (2) good habitsSu Nan: Don‘t litter on the floor. It's a bad habit.Girl: I'm sorry.Mom: You shouldn‘t tell lies. It's a bad habit.Boy: I'm sorry.I won't.tell lies 撒谎Li Shan: We shouldn't make a noise in the library. We'd better keep quite and we should have a good habit.Girl : All right.好吧Grandpa: The boy shouldn't write on the tree. We should take care of trees and have a good habit.Boy: I see.take care of 照顾;照看Mom: What are you doing? Kevin?Kevin: I'm reading.Mom: Don‘t read in bed. It's bad for your eyes.Kevin: But I like reading in bed.Mom: You shouldn‘t do that.It‘s a bad habit.You'd better read at the desk.Kevin: All right, Mom.Mom: And you shouldn‘t have the book so close to your eyes.You should take care of your eyes.Kevin:Ok.这么近;如此近We shouldn‘t talk loudly in class. 不应该We should keep quiet in class. 应该We‘d better keep quiet in class. 我们最好 ···play games eat ice--creamsmake a noise keep quite cross the street see a doctor have a rest read in bed wait in line take care of her eyes cross the street 过马路1.The light is red. You shoudn't cross the street. You'd better wait in line.2.Alice has a stomachache. She shouldn’t eat many ice--creams. She'd better see a doctor.3.It's late at night. They shouldn't make a noise. They'd better keep quiet. 4.Listen to the teacher. We shouldn't play games. We'd better have a rest.5Alice is reading. She shouldn't read in bed. She 'd better take care of her eyes.