七年级下册unit4SectionA (1a--1c).ppt

Unit4Don teatinclass后安中学潘群燕 热身 心有灵犀 Eatinpublic Followtherules please Benoisy Let sbepolite Don teatinpublicDon tfollowtherules Neverbenoisy Let snotbepolite 祈使句 一 定义 用来表示请求 命令 劝说 警告等 二 构成 动词原型 其它 三 否定形式 1 句首加Don t或Never2 No V ing 祈使句 有规律 动词原型句首立 表示命令与请求 please加上更客气 形容词 要注意 动词be要加上去 不要不准是否定 Don t加上就可以 祈使句口诀 练习 1 inthestreet It sdangerous A NotplayB NottoplayC Don tplayD Don ttoplay2 himthesecret willyou A Don ttellB NottotellC NottellingD Notelling3 Please upearly oryoucan tcatchthetrain A gettingB getC togetD got4 LetTonny watchTV heistootired A noB notC don tD notto C A B B Ihavetobequietinthelibrary Shehastobequietinthelibrary 一般疑问句 Doyouhavetobequietinthelibrary 肯 否定回答 Yes Ido No Idon t haveto表示必须 Imustgohomeby9 00 一般疑问句 Mustyougohomeby9 00 肯定回答 Yes Imust 否定句 No Ineedn t No Idon thaveto must表示必须 Shemustgohomeby9 00 must与haveto区别 1 有无人称与数的变化 2 否定含义 练习 1 It srainningallday Tom stayathome A mustsB hastoC haveto2 Mustyoudothedishesnow No I A mustB mustn tC needn tD haveto3 You swimintheriver It sdangerous A mustB havetoC needn tD mustn t B C D She sneverlateforwork She salwaysontime SheoftenfightswithRongMomo fightwithsb 和某人打架 ShearrivesatZijinchengdifficultly SheisstrictwithXiaoYanzi bestrict withsb insth 对某人严格 对某事严格 TherearetoomanyrulesinZijincheng toomany toomuch 可数名词 不可数名词 IcanwatchTVatnightonweekends Ican twatchTVonschoolnights 练习 1 Shehastomake bedeverymorning A aB sheC herD hers2 Don tfight othersintheclassroom A toB inC atD with3 Scottispracticing thepianonow A playB playsC toplayD playing4 Myfatherisalwaysstrict us A withB onC inD to5 P