Unit 1 Public signsPeriod 3 Today is Saturday. Ben and his Today is Saturday. Ben and his cousin, Jack, are in the park. Jack cousin, Jack, are in the park. Jack is only four years old but he is only four years old but he always always hashas a lot of questions. He a lot of questions. He sees some sees some public signspublic signs in the park. in the park. He is asking Ben some questions He is asking Ben some questions about them.about them.Listen and repeatThere are a lot of signs here, Ben.There are a lot of signs here, Ben.Yes. Theyre public signs. They meanYes. Theyre public signs. They meandifferent things.different things.Theres a sign on the wall. What does Theres a sign on the wall. What does it mean?it mean?It means “Danger”!It means “Danger”!Can I go in?Can I go in?No, you cant. You must stay away No, you cant. You must stay away from the building.from the building.Listen and repeatTheres a sign on the grass. What does it mean?What does that mean?It means we shouldnt walk on the grass.It means Be quiet ! We shouldnt make noise here.It means “Keep off the grass”!The sign on the birds cage is interesting. What does it mean?Now I know a lot about the public signs. Thank you, Ben.Read and complete Do you like the park, Jack?public signsmeanshouldntbe/keepquietstayawayYes, I do. Now I know a lot about in the park. They different things. We walk on the grass. We should near the birds cage. The sign on the building in the park meansDanger. We must fromit.What does this sign mean?It means you shouldnt climb the tree.What does this sign mean?It means you shouldnt litter. should 应该应该 should not = shouldnt不应该不应该 must 必须必须 后面加动词原形后面加动词原形What does this sign mean?It means you shouldnt What does this sign mean?It means you shouldnt touch.What does this sign mean?It means you shouldnt eat or drink.What does this sign mean?It means you shouldnt walk on the grass.What does this sign mean?It means you shouldnt take photos.Can I go to the park?No, you cant. You should go home now.Can I play computer games?No, you cant. You should go to bed now.Can I ?No, you cant. You should now.Can I watch TV?No, you cant. You should read books now.Can I have an ice cream?No, you cant. You should have dinner now.