英语人教版七年级下册Unit4 Don’t eat in class.ppt

Unit4Don teatinclass SectionA 2d 3c Objectives TolearnImperativesDon t Don truninthehallways Tolearntousecanforpermission Canweeatintheclassroom Tolearntousemodalverbshaveto mustWehavetobequietinthelibrary Wemustbeontimeforclass Don t Lookandsay Don t fight Don t runinthehallways eatintheclassroom Let splayagame Whoknowsthesesigns Don t class arrivelatefor Don t listentomusic inclass Observeandlearn Don teatintheclassroom Don tfight Don truninthehallways Don tarrivelateforclass Don tlistentomusicinclass Haveathink 祈使句是怎样构成的 一般在什么情况下会用祈使句 Don t 不要做 祈使句一般用于上级对下级 长辈对晚辈之间 表示命令 劝说或警告 也可表示请求 祈使句 主语一般为第二人称 但通常省略 肯定式一般以动词原形开头 否定式通常在动词原形前加don t 为使祈使句更委婉 有礼貌 可在祈使句开头或末尾加please 句末一般用句号 表示强烈语气时用感叹号 1 肯定祈使句的常见句型结构 Do型 动词原形 宾语 其他 Openthedoor please Be型 Be 表语 如 Beagoodboy Let型 Let 宾语 动词原形 其他 Let s 动词原形 其他 Letmehelpyou Let splaytennis 祈使句的句型结构 2 否定祈使句的常见句型结构 Do型和Be型的否定式 Don t 动词原形 be 其他 Don tforgetme Don tbelate Let型的否定式 Don t let 宾语 动词原形 其他 Let s not 动词原形 其他 Don tlethimgoback Let snotgoswimming 警示语 No 名词 动词 ing形式 Notalking 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 ttalkinthelibrary talkinginthelibrary Comein Lethelp Don teat Don tbe No Practice Observeandlearn Haveathink 1 情态动词在用法上有什么共同点 2 can在本单元主要表示什么含义 它还可表达什么意思 3 haveto在用法上与其他情态动词有何区别 情态动词can must haveto后面都接动词原形 本单元can意为 可以 表示请求 允许 Icandanceandsing 情态动词can 2 can还可表示能力 能 会 Canthestudentsruninthehallways Yes theycan No theycan t Wecan teatintheclassroom 肯定 主语 can 动词原形 其他 否定 主语 cannot can t 动词原形 其他 疑问句 Can 主语 动词原形 其他 肯定回答 Yes 主语 can 否定回答 No 主语 can t 情态动词can的句型结构 情态动词must表说话人的主观看法 表示必须 必要 无人称和数的变化 不能单独使用 必须与其后的动词原形构成谓语 句型结构 主语 must 动词原形 其他 情态动词must Youmustcomeintime 你必须按时来 Meatmustbecookedthoroughly 肉必须彻底煮熟 情态动词haveto haveto表示必须 强调客观需要 有不得不 被逼无奈做某事的意思 此词既有人称 单复数的变化 也有动词时态的变化 其否定形式和疑问句形式均需要借助助动词do才可以进行变化 haveto的句型结构 肯定 主语 have has hadto V原形 其他否定 主语 don t doesn t didn thaveto V原形 其他疑问句 Do Does Did 主语 haveto V原形 其他 1 Shehastolookafterhermotherathome 2 Wedon thavetocleantheroomtoday 3 Doeshehavetogotobednow Yes hedoes No hedoesn t They weartheuniformeveryday Yes Lookandsay Doyou theuniformeveryday haveto No wedo wedon t havetowear She dohomeworkeveryday hasto I mybedroomonweekends havetoclean LibraryRules1 Don ttalk 2 3 4 Don teat Writetherulesfortheschoollibrary Don tlistentomusic Don ttakephotos 3a Usethewordstomakequestionsabouttherules Thenwriteanswersaccordingtoyourschool 3b 1 Bequite Q Doesshehavetobequiteinthelibrary she haveto inthelibrary A Yes shedoes 2 Eat Q he haveto inthedininghall A Doeshehavetoeatinthedininghall Yes hedoes 3 Listentomusic Q we can inthehallways A 4 Wearahat Q we can intheclassroom A Canwelistentomusicinthehallways Canwewearahatintheclassroom No wecan t No wecan t Makeupfivecoolrulesforyourdreamschool Shareyourruleswiththeclass YourclassmatesvotefortheCoolestSchool 1 Wecaneatinclass 2 Wedon thavetocometoschooleveryday 3 3c Youcanalsodescribeotheraspectsofyourdreamschool suchas itslocation theclasses typesofclassmates Nowlet smakeanoralpresentationtothewholeclass Mydreamschoolis Thereare Ithas Atmydreamschool wedon thavetocometoschooleveryday We 注 另附word文档 点击此处链接 用所给单词的适当形式填空 1 Don t listen tomusicinthelibrary 2 Dowehaveto clean theroomeveryday 3 Youcan t wear sunglassesintheclassroom 4 Please arrive atschoolontime 准时 listen clean wear arrive 1 Canthestudentseatintheclassroom 作否定回答 No 2 Billhastoplaysportseverymorning 改为一般疑问句 Bill playsportseverymorning theycan t Doeshaveto 按要求完成句子 每空一词 3 Youcan twearahatinclass 改为祈使句 ahatinclass 4 Hehastoseehisgrandparentsonweekends 对划线部分提问 What he onweekends 5 Comein please 改为否定句 in please Don twear does havetodo Don tcome 1 我们必须按时到校 Wemust school 2 你能把你的电子游戏带到学校来吗 Canyou yourcomputergame school ontime bring 根据所给汉语完成英语句子 每空一词 to arriveat 3 周末迈克经常在外面吃饭 Mikeoften onweekends 4 星期天你不必早起 You getupearlyonSundays 5 不要在走廊里乱跑 inthehallways eatsoutside don thaveto Don trun late don t forschool arrive2 music listento intheclassroom don t3 eat can t intheclassroom we Formsentences Don tarrivelateforschool Don tlistentomusicintheclassroom Wecan teatintheclassroom Don truninthehallways Wemustbeontimeforclass Canweeatintheclassroom No wecan t butwecaneatinthedininghall Doeshehavetowearauniformatschool Yes hedoes No hedoesn t Whatdoyouhavetodo Wehavetobequieti