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1、 Unit 4Unit 4 Dont eat in class Dont eat in class!We cant rule the country without rules.没有规章制度就不能治理好国家.keep rulesbreak rulesschool rulesclass rulesfamily ruleslibrary rulesdining rules遵守规则遵守规则违反规则违反规则校规校规班规班规家规家规图书馆规则图书馆规则就餐规则就餐规则Dont smoke!No smoking!Dont fight.Dont listen to music in the classroo
2、m!in the classroomDont run in the hallways.Dont eat in the classroom.in the classroomDont take photos here.No photos!Please turn right!You can turn right!Dont take your schoolbag to the library!No school bags!in the libraryDont arrive late for class.Dont talk in the library!No talking!in the library
3、Dont talk loudly in public!in public(在公共场所在公共场所)Are they good students?What rules are these students breaking?1.Dont arrive late for class.2.Dont run in the hallways.3.Dont eat in the classrooms.4.Dont listen to music in the classrooms or the hallways.5.Dont fight.What rules are Peter,Selina and Nic
4、k breaking?Name PeterSelinaNickRule2341a1b1.Dont arrive late for class.You must be on time.2.Dont run in the hallways.3.Dont eat in the classrooms.You must eat in the dining hall.4.Dont listen to music in the classrooms or the hallways.5.Dont fight.A:What are the rules?B:We cant _.1cA:Can we _?B:No,
5、we cant.Activity_ listen to music in the classrooms or hallwayscancant_listen to music in the music roomcancant_listen to music outsidecancant_ eat in the classroomcancant_eat in the dining hallcancant_eat outsidecancant_wear a hatcancant_fightcancant2a2bListen and check the activities.A:What are th
6、e rules?B:We cant _.2cA:Can we _?B:Yes,we can.A:Can we _.B:No,we cant,but we can _.祈使句祈使句1.1.祈使句是表示命令、叮嘱、号召等的句子，祈使句是表示命令、叮嘱、号召等的句子，2.2.通常省略主语通常省略主语 you.you.3.3.句中谓语动词用动词原形。句中谓语动词用动词原形。4.4.祈使句有肯定和否定两种：祈使句有肯定和否定两种：Dont eat in class.Come in,please!请进！请进！Sit down,please.请坐。请坐。Dont play sports in the cla
7、ssroom.Dont fight.否定否定肯定肯定have to 必须必须，不得不，不得不We have to arrive at school on time.We have to do homework every day.We have to clean the classroom every day.We have to keep the classroom clean.We have to study.A:Do we have to _?B:Yes,we do.We have to No,we dont.We dont have to A:Does he have to _?B:Y
8、es,he does.He has to No,he doesnt.He doesnt have to A:What does he have to do?B:He has to .A:What do you have to do?B:We have to .1.Clean the classroom every day.2.Get to school before 7:30.3.Keep quiet in class.4.Do homework on time.5.Wear uniforms every day.have to dont/doesnt have to必须必须，不得不，不得不不必不必1.我们必须穿校服吗？我们必须穿校服吗？2.玛丽每天打扫教室吗？是的，她是。玛丽每天打扫教室吗？是的，她是。3.琳达，你不必在琳达，你不必在7点半之前到校。点半之前到校。4.他们在学校不得不做什么呢？他们在学校不得不做什么呢？5.我们必须在课上保持安静。我们必须在课上保持安静。