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Unit4Don'teatinclassSectionAPeriod1(1a-2d)•定义：表示请求，命令，警告，建议等的句子叫祈使句，一般以动词原形开头，通常省略主语you，句末可以用感叹号或者句号。祈使句句式肯定形式否定形式Please+动词原形+其他Pleasestandup.Pleasedon'tstandup.动词原形+其他Putawayyourthings.Don'ttalkinclass.Let+宾语+动词原形+其他Letmehelpyou.Don'tlethergo.Be+表语Becareful!Don'tbelateforclass.No+名词/动名词Nosmoking!rule[ru:l]规则arrive[ə'raɪv]到达(be)ontime准时hallway['hɔ:lweɪ]走廊hall[hɔ:l]大厅dining['daɪnɪŋ]hall餐厅listen['lɪsn]听listento听fight[faɪt]战斗sorry['sɒrɪ]抱歉的outside[ˌaʊtˈsaɪd]在外面wear[weə(r)]穿important[ɪmˈpɔ:tnt]重要的bring[brɪŋ]带来uniform['ju:nɪfɔ:m]带来quiet['kwaɪət]安静的schoolrulesclassrulesfamilyruleslibraryrulesdiningrules校规班规图书馆规则就餐规则家规keeprulesbreakrules遵守规则违反规则•arriveat+小地点arrivein+大地点若arrive后面接副词（here，there，home）at/in省略•fightabout“为……争吵”fightwith“和……作战/打架”fightagainst“对抗……”•besorryfor“为……而遗憾”besorrytodosth.“因做某事而遗憾”hallwayDon’truninthehallways.runinthehallways.fightDon’tfight!belateforclass=arrivelateforclassA:Whataretherules?B:Well,Wecan’tbelateforclass.Wemustbeontime.listentomusicDon’tlistentomusicinclass.8:00a.m.arrivelateforschool=belateforschoolDon’tarrivelateforschool.=Don’tbelateforschool.Don'teatintheclassroom.4.Don’tlistentomusicinclass.5.Don’tfight.1.Don’tarrivelateforclass.Youmustbeontime.2.Don’truninthehallways.3.Don’teatintheclassroom.Youmusteatinthedininghall.1aPresentation213451bListen.Whatrulesarethesestudentsbreaking?Writethenumbersafterthenames.Peter___Amy____Mike____423Whatcanwedoatschool?Whatcan’twedoatschool?.A:Whataretherules?B:Well,wecan’truninthehallways.Don’truninthehallways.Don’teatintheclassroom.A:Whataretherules?B:Well,wecan’teatintheclassroom.Wemusteatinthedininghall.A:Whataretherules?B:Well,wecan’tlistentomusicinclass.Don’tlistentomusicinclass.A:Whataretherules?B:Well,wecan’tfight.Don’tfight.1.Sitdown.2.Comein.3.Eatathome.1.把下列祈使句改成否定句Homework:4.Listentomusicoutside.5.Doyourhomeworkatschool.