广东省河源市江东新区七年级英语下册Unit4DonteatinclassPeriod2课件（新版）人教新目标版.ppt

Unit4 Don teatinclass SectionAPeriod2 2d 3c learnthenewwords wear important bring uniform quiet out haveto 2 学习使用祈使句的用法3 学习情态动词must haveto Don tfight Lookandsay what stherules Don truninthehallways Don tarrivelateforclass Don teatinclass 1 Aretheremanyrulesatschool Readtheconversationin2dandanswerthequestions Reading 2 Canhebringmusicplayerstoschool 3 Dotheyhavetoalwaysweartheschooluniform 2d Role playtheconversation John Hi myname sJohn It smyfirstdayatschool Alice Hi John I mAlice Thisisagreatschool buttherearealotofrules John Really Whataresomeoftherules Alice Well don tbelatefortheclass Thisisveryimportant John OK sowemustbeontime Canwebringmusicplayerstoschool Alice No wecan t Andwealwayshavetoweartheschooluniform John Isee Alice Oh andwealsohavetobequietinthelibrary 1 Aretheremanyrulesatschool Readtheconversationin2dandanswerthequestions Reading Yes thereare 2 Canhebringmusicplayerstoschool 3 Dotheyhavetoalwaysweartheschooluniform No hecan t Yes theydo GrammarFocus 阅读GrammarFocus部分 完成下列句子 inthehallways 1 不要在走廊上乱跑 Don trun 2 我们必须准时上课 Wemust forclass3 我们可以在教室吃东西吗 Canweeatintheclassroom 不 不可以 但是我们可以在餐厅吃东西 No we butwecaneatinthe 4 他在学校必须要穿校服吗 he wearauniformatschool 5 我们在课堂上能戴帽子吗 we inclass beontime can tdininghall Doeshaveto Canwearahat dancesing What clubwantjoin joinchess 4 你会做什么事情 canyoudo 我会跳舞 我不会唱歌 Ican Ican t 5 你想加入什么俱乐部 What doyou to 我想加入象棋俱乐部 Iwantto the club 合作探究 一 祈使句 Eatinthedininghall Don truninthehallways Let sjointheEnglishclub Nosmoking Nophotos 用法 祈使句一般以 开头 表示请求 命令劝说 警告等 在祈使句中 通常省略句子主语 动词原形 you 动词原形 肯定句 其他 否定句 其他 以let引导的句子 sb 动词原形 以No 或 表示 禁止 规劝 Eatinthedininghall Don truninthehallways Let sjointheEnglishclub Nosmoking Nophotos 动词原形 let Don t 动词 ing 名词 将下面的句子改为祈使句 每空一词 1 Youcancomein please 2 Icanhelpyou me you 3 Youcan teatinclass inclass 4 Youcan tbelateforschool lateforschool 5 Youcan ttakephotoshere photoshere Comein Lethelp Don teat Don tbe No 探究二 haveto和must用法 Wemustbeontimeforclass Wehavetowearuniformsatschool Youmustn ttellhimaboutit 你一定不要告诉他这件事 可能是秘密 Youdon thavetotellhimaboutit 你不必告诉他这件事 他可能知道了 It stoolate Katehastogonow Tomdoesn thavetocleanhisroom 1 观察例句 可以得知must和haveto都属于情态动词 意为 区别在于 侧重说话者主观看法 认为有必要或有任务去做某事 而 侧重客观需要 含有不得不或被迫之意 2 观察例句 可以看出must的否定形式是 意思是 3 haveto的否定形式是 意为 观察例句 得知 有人称和数的变化 必须 不得不 must haveto mustn t don thaveto 不必 绝不 一定不要 haveto 即时训练用must或haveto的适当形式填空Thereisnobus you walkhome I studyEnglishwell Nick gotoschoolonweekends You gothroughtheroadwhenthelightisred must haveto doesn thaveto mustn t 3a Writetherulesfortheschoollibrary LibraryRules 1 2 3 4 Don ttalk Don teat Don tlistentomusic Don ttakephotos 3b Usethewordstomakequestionsabouttherules Thenwriteanswersaccordingtoyourschool Bequiet Q Doesshehavetobequietinthelibrary she haveto inthelibrary A Yes shedoes Eat Q he haveto inthedininghall A Doeshehavetoeatinthedininghall Yes hedoes Listentomusic Q we can inthehallways A Wearahat Q we can inclass A Canwelistentomusicinthehallways No wecan t Canwewearahatinclass No wecan t Wecaneatinclass Wedon thavetocometoschooleveryday 3c Makeupfivecoolrulesforyourdreamschool Shareyourruleswiththeclass YourclassmatesvotefortheCo