2016新目标英语七下Unit4课件

Unit4Don’teatinclass.SectionAPeriodOne肯定祈使句Sitdown.Comein.Eatathome.否定祈使句Don’tsitdown.Don’tcomein.Don’teatathome.祈使句是用来表示请求、命令、叮嘱、号召或者劝告等的句子,这类句子的主语常是第二人称you,也就是听话者,因而you常省去了。祈使句的开头是动词原形。如:Lookout!小心！Waithereforme!在这等我！Besuretocomehereontime!务必准时来到这里！Listentomusicoutside.Don’tlistentomusicoutside.Doyourhomeworkatschool.Don’tdoyourhomeworkatschool.Don’tlookoutofthewindow.不要向窗外看。祈使句的否定形式多以donot(常缩写成don’t)开头,再加上动词原形。祈使句表示请求、命令、劝说、号召、警告等。表示委婉的祈使语气，可在句首或句末加上please，若在句末加please，之前要用逗号隔开。祈使句有肯定祈使句与否定祈使句两种。祈使句的常见句型结构1.肯定祈使句的常见句型结构：①Do型：动词原形+宾语+其他.如：Openthedoor,please.②Be型：Be+表语.如：Beagoodboy!③Let型：Let+宾语+动词原形+其他.(或：Let’s+动词原形+其他.)如：Letmehelpyou.又如：Let’splaytennis.2.否定祈使句的常见句型结构：①Do型和Be型的否定式：Don’t+动词原形/be+其他.如：Don’tforgetme.又如：Don’tbelate.②Let型的否定式：Don’t+let+宾语+动词原形+其他.(或：Let’s+not+动词原形+其他.)如：Don’tlethimgoback.又如：Let’snotgoswimming.③警示语：No+名词/动词-ing形式.如：Notalking.祈使句（ImperativeSentence）定义用于表达命令、请求劝告、警告、禁止等的句子叫做祈使句，祈使句最常用于表达命令，祈使句因对象（即主语）是第二人称，所以通常都省略。祈使句的动词都为一般现在时，句末则使用句号来表示结束。相关口令祈使句，祈使句，请求、命令或建议。主语是you常省去，动词原形开头记。否定形式要注意，句首要把Don’t加。要讲客气please，句首、句末没关系。●肯定结构：1．Do型(即：动词原形(+宾语)+其它)。如：Pleasehaveaseathere.2．Be型(即：Be+表语(名词或形容词)+其它)。如：Beagoodboy!3．Let型(即：Let+宾语+动词原形+其它)。如：Letmehelpyou.●否定结构：1．Do型和Be型的否定式都是在句首加don't构成：如：Don'tforgetme!不要忘记我！Don'tbelateforschool!上学不要迟到！2．Let型的否定式有两种：“Don‘t+let+宾语+动词原形+其它”和“Let+宾语+not+动词原形+其它”。如：Don'tlethimgo./Lethimnotgo.别让他走。3．有些可用no+n./v-ing,用来表示禁止性的祈使句。如：Nosmoking!禁止吸烟！Nofishing!禁止钓鱼！4.Youcan’tstandinthemiddleofthestreet.(改为祈使句)___________inthemiddleofthestreet.5.Takethepentoyoursister.(改为否定句)____________thepentoyoursister.6.Don’tarrivelatenexttime.(改为同义句)___________latenexttime.Don’tbeDon’tstandDon’ttake祈使句的组成：①：动词原形+其他②：Please+动词原形+其他③：don‘t+动词原形rulearrive(be)ontimehallwayhalldininglistenlistento…fightn.规则；规章v.到达准时n.走廊;过道n.大厅；礼堂n.hall餐厅v.听；倾听听……v.&n.打架；战斗Wordsandexpressionssorryoutsidewearimportantbringuniformquietadj.抱歉的；难过的；惋惜的adv.在外面adj.外面的v.穿；戴adj.重要的v.带来；取来n.校服；制服adj.安静的WordsandexpressionsWecan’t…Don’t…Warming-upWhatrulesdoyouknowatyourschool?你知道你们学校有哪些校纪吗？8:00a.m.arrivelateforschool=belateforschoolDon’tarrivelateforschool=Don’tbelateforschool.Don’tarrivelateforclass.Don’t____intheclassroom.eatDon’t______.fightDon’t____________inclass.listentomusicLookandsay.Whichrulesarethesestudentsbreaking?Don’tarrivelateforclass.Youmustbeontime.Don’truninthehallways.Don’teatintheclassroom.Youmusteatinthedininghall.Don’tlistentomusicinclass.Don’tfight.13454.Don’tlistentomusicintheclassroomsorthehallways.5.Don’tfight.21.Don’tarrivelateforclass.2.Don’truninthehallways.3.Don’teatintheclassrooms.1aPeter_______________________________Amy__________________________Mike___________________________2.Don’truninthehallways.3.Don’teatintheclassroom.4.Don’tlistentomusicinclass.Listen.Whatrulesarethesestudentsbreaking?Writethenumbersafterthenames.(1b)MsClark:Hey,Peter.Youknowthe_____._______________________.Peter:Sorry,MsClark.Mr.Smith:Amy,__________________________________________________.Amy:Oh,sorry,Mr.Smith.Mr.Smith:Hey,Mike._________________________,Mike!Boy1:He_____hearyou,MrSmith.rulesDon’truninthehallwaysdon’teatintheclassroom.Don’tlistentomusicinclasscan’tListenagainandfillintheblanks.YoumusteatinthedininghallA:Whataretherules?B:Well,wecan’tarrivelateforclass.PairworkPracticetheconversation.Askaboutotherrulesatyourschool.A:Whataretherules?B:Well,wecan’tarrivelateforclass.Wemustbeontime.Whataretherules?Wecan’tarrivelateforclass.SCHOOLRULESSCHOOLRULESWhataretherules?Wecan’truninthehallways.SCHOOLRULESWhataretherules?Wecan’teatintheclassroom.SCHOOLRULESWhataretherules?Wecan’tlistentomusicinclass.SCHOOLRULESWhataretherules?Wecan’tfight.Schoolrules1.Don’tarrivelateforclass.Youmustbeontime.2.Don’truninthehallways.3.Don’teatintheclassroom.Youmusteatinthedininghall.4.Don’tlistentomusicinclass.5.Don’tfight.情态动词can的用法1)表示能力“会,能”Canyouplaytheguitar?你会弹吉它吗？JudycanspeakalittleChinese.朱蒂会说一点中文。Icandanceandsing.我能唱歌又能跳舞。词语链接2)表示允许、许可,“可以”、“能”(在这一课中新学的词义)Canthestudentsruninthehallways?学生们可以在走廊上跑吗？Wecaneatoutside.我们可以在外面吃东西。注意:和大部分情态动词一样,can在否定句中,直接在can后加上not,在疑问句中,把can放到主语前面,并且没有人称和数的变化。GroupworkWhatcanyou...intheclassroom?Whatcan’tyou...intheclassroom?Now,Listen.ChecktheactivitiesAlanandCindytalkabout.√2aActivity1.___listentomusicintheclassroomorhallwayscancan’t2.___listentomusicinthemusicroomcancan’t3.___listentomusicoutsidecancan’t4.___eatintheclassroomcancan’t5.___eatinthedininghallcancan’t6.___eatoutsidecancan’t7.___wearahatcancan’t8.___fightcancan’tListenagain.CanAlanandCindydotheseactivities?Circlecanorcan’tabove.√√√√√√√2bCindyistellingAlantheschoolrules:We____listentomusicintheclassroomor________.Butwe____listentoitoutsideorinthemusicroom.Andwecan’t___intheclassroom,butwecaneatinthe_________.Wecan’t_______________or________ourclassmates.That______theteachersreallyunhappy.Listenagainandfillintheblanks.can’thallwayscaneathalldiningwearhatsinclassfightwithmakesPairworkPracticetheconversation.Talkabouttherulesatyourschool.A:Canwelistentomusic,Cindy?B:Wecan’tlistentomusicinthehallways,butwecanlistentoitoutside.Canw