Chapter 2 Rules in fun places Period 1（课件）-2024-2025学年新思维小学英语 4B

Keep quiet ! No eating or drinking . No littering . No running . No diving . No spitting . No climbing . No mobile phones . Turn off your mobile phone . I do , you guess . Don’t climb the rocks . Don’t write on the rocks . Don’t swim in the river . Don’t pick flowers . Don’t light fires . Signs A sign tells us to do something or not to do something. For example: No littering Keep quiet. Don’t eat in the classroom. 22 z For example: Keep quiet Don’t litter. Signs We often use imperatives in signs. We use Don’t to tell people not to do something. In the park In the park Don’t climb the trees. Don’t walk on the grass. Don’t pick the flowers. Don’t feed the birds. In the classroom In the classroom No eating or drinking. Don’t draw on the desk. No running. Keep quiet. Must 必须 We use must to say that it is necessary to do something. must = have to / need to For example: Keep quiet.  You must keep quiet. Don’t run in the classroom.  You must not run in the classroom. No littering  You must not litter. We mustn’t climb the trees in the park. In the park Don’t climb the trees. Example: We _______________ in the park. In the park Don’t ride a bicycle. Now you try. mustn’t ride a bicycle We ________________________ . Outside the classroom line up must line up outside the classroom We _________________________ . In the classroom Don’t play football. mustn’t play football in the classroom We _______________________ . No spitting mustn’t spit $$