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1. Key Points learn to make sentences with modal verb [don’t/can’t/must/have to]. 2. Sentences (1) Don’t fight. (2) —Can we wear a hat in class? —Yes, we can./No, we can’t. (3) Do we/Does he have to... P A R T Ⅰ P R E V I E W 3. Words and Expressions (1) hallway, wear, rules, uniform, fight, quiet, library, hat, vote(投票；选举), coolest, dream(梦的；理想的；不切实际的) (2) have to(不得不), on time(按时), dining hall(餐厅), in the library(在图书馆里), make up(补充), share with(分享), every day(每天) P A R T Ⅱ T E X T Grammar Focus 1. Don’t run in the hallways. 2. Don’t fight. 3. —What are the rules? —We must be on time for class. 4. —Can we eat in the classroom? —No, we can’t, but we can eat in the dining hall. 5. —Can we wear a hat in class? —Yes, we can./No, we can’t. 6. —Does he have to wear a uniform at school? —Yes, he does. / No, he doesn’t. 7. —What do you have to do? —We have to be quiet in the library. ◇祈使句 1. 祈使句是用来表示请求、命令、叮嘱、号召或者劝告等的句子, 这类句子的主语常是第二人称you，即听话者，因而you常省去。祈使句的开头是动词原形。祈使句有肯定和否定两种。 2. 祈使句的否定形式多以do?not(常缩写成don’t) 开头，再加v.原。 | 
