4B Chapter 2 Rules in fun places 课件（新思维小学英语）

Rules in fun places 4B By Nancy 新思维小学英语 Chapter Two New Words climb dive keep quiet litter run spit turn off your mobile phone 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. 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. After Don’t, we use the base form of the verb. Don’t pick the flowers. Don’t walk on the grass. Don’t feed the ducks. Signs We can also use No + ing in signs. No eating No littering No climbing What kind of signs can you find in the following places? Think of as many as you can and share your ideas with your classmates and teacher. 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. In the toilet In the toilet Flush after use. Wash your hands after use. Don’t waste the water. Must 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 Introducing the setting One day Charlie and his family went to Century Park. They went there by bus. What other signs can you see on the bus? On the bus, Charlie and his family saw some signs. Which signs can you see on a bus? Do you know why there are rules on the