(
课件网) 年 级：七年级 学 科：英语（人教版） Unit 2 No Rules, No Order Section A Grammar Focus Jack Jack is exploring his new school in China, hoping to know rules in different places. Don’t be late for school. Arrive on time. Don’t run in the hallways. Don’t eat in the classroom. Wear the school uniform. Don’t use your phone in class. Don’t litter. Keep your school clean and tidy Be polite and treat everyone with respect. Put up your hand if you want to ask your teacher a question. Watch and say Class Rules Rules in different places Computer room rules Rules in different places We can’t/mustn’t eat in the computer room. We can’t/mustn’t run in the computer room. We can’t/mustn’t put anything on the keyboard. Don’t eat in the computer room. Don’t run in the computer room. Don’t put anything on the keyboard. We can’t/mustn’t eat on the playground. We must/have to take turns to gather.(集会） We must/have to return(归还） the sports items. Don’t eat on the playground. Take turns to gather. Return the sports items. Playground Rules Look and say Library Rules Rules in different places Imperative Sentence Signs (You can draw) Modal Verbs Hospital Cinema Museum Think and say What rules do they have in common Look and learn Mute your cellphone. Arrive on time. Be quiet. Don't smoke here. Don't take photos. No talking. 祈使句（Imperative sentences) Form（形式） Meaning(意义） Use（使用） 动词原形 （实义动词、Be动词） 无主语 否定形式:在动词原形前加Don’t/No +doing 或名词 命令、请求 警告、劝告 School rules Library rules… Signs… 有时候为了强调对象，也会把主语显示出来： David, don’t talk in class. 如果表示客气，还可以在句末加上please： Be quiet, please. 命令；课堂规则 David, doesn’t talk in class. ★ ★ ★ We must turn off our cellphones. Anna must turn off her cellphone. We have to wear the school uniform. Anna has to wear the school uniform. We can’t/mustn’t smoke in the hospital. Anna can’t/mustn’t smoke in the hospital. We don’t have to wear the uniform. Anna doesn’t have to wear the school uniform. 1. 是情态动词， 是实义动词短语，但是整体功能类似情态动词，表示命令，请求，建议等。 2. 情态动词有一定意义，但 独立作谓语，因此，can, must和have to 必须和 连用，构成一个复合谓语。 can和must have to 不能 动词原形 Look and learn 情态动词(Modal Verbs) Form Meaning Use Imperative Sentences （祈使句） Order Request Advice Warning Class rules Library rules Dining hall rules … Modal verbs (情态动词） Order Request Advice Warning Class rules Library rules Dining hall rules … Signs (指示牌） How do we describe rules The manager: Welcome to the dining hall. You must line up to buy food. Don't waste food. You must clean up your table after eating. Don't run around in the dining hall. Jack : Can I bring my own food into the dining hall Must I finish all the food on my plate The manager: No, you can't bring your own food. Yes, you must finish your food as much as possible to avoid waste. Ja ... ...
