人教版七年级英语下册-Unit-4-Section-A--Grammar-Focus—3c-课件(共

Whatrulesdothesestudentsbreak(违反)inthevideo?小组合作：大家来找“茬”Don’tsleepinclass.Don’tbelateforclass.Don’truninthehallways.Don’tlistentomusicinclass.Don’teatinclass.Don’tleaveyourseatinclass.Don’tfightwithyourclassmates.fightwithsb.与某人打架schoolrulesLibraryRules1.Don’ttalk.2.__________________3.__________________4.__________________3aWritetherulesfortheschoollibrary.Don’teatordrink.Don’ttakephotos.方法指导：1.由图示可知都是一些禁止类的祈使句。2.可知应用“Don’t+动词原形”句子。Don’tlistentomusic.Bequiet.Nofood.1.不要在楼道里跑。______________________________2.不要打架。____________________3.在餐厅里吃东西。________________________________4.在音乐教室里听音乐。________________________________一、祈使句(Don't)V原+其它Don’tfight.Don’truninthehallways.Eatinthedininghall.Listentomusicinthemusicroom.预习检测一、探究乐园：祈使句用法句子结构(2)否定句:_____+_________+其他(3)____+sb.+________动词原形Don’t动词原形Let动词原形Let’swalktoschool.e.g.Sitdown.1.表示请求、命令、劝说、警告等2.一般以动词原形开头3.通常省略句子主语第二人称youe.g.Don’tfightwithyourclassmates.(4)No+动词-ing形式。表示“禁止、规劝”禁止吸烟！NoParking.NoSmoking.(1)肯定句：__________+其他禁止停车！5.有什么规则？______________________________6.我们必须按时上课._______________________________7.你们必须做什么？_______________________________8.在图书馆里我们必须保持安静。_________________________________Whatdoyouhavetodo?Wehavetobequietinthelibrary.Whataretherules?Wemustbeontimeforclass.二、询问和讨论学校规则：9.我们可以在教室里吃东西吗？_____________________________10.不能。但我们可以在餐厅里吃东西。________________________________________________________________11.我们可以在上课的时候带帽子吗？是的，我们可以。/不，我们不可以。_____________________________———————————————Canwewearahatinclass?No,wecan’t,butwecaneatinthedininghall.Canweeatintheclassroom?Yes,wecan./No,wecan't.12.他在学校里必须穿校服吗？_______________________________——————13.是的，必须。/不，不必。_______________________________Yes,hedoes./No,hedoesn’t.Doeshehavetowearauniformatschool?情态动词haveto的用法:haveto意思是“必须、不得不”，(1)强调客观需要，强调因某种客观条件的存在而迫使这样做。(1)肯定句结构:主语＋haveto＋动词原形＋其他(一般现在时中，主语是第三人称单数时,用hasto。)WehavetowearsportsshoesforP.E.class.在体育课上，我们必须穿运动鞋。Tom_____dohishomeworkeveryday.汤姆每天必须做家庭作业。例如：hasto(2)否定句结构:主语＋don’thaveto＋动原＋其他(一般现在时,主语是第三人称单数时,用doesn’thaveto。)如:Wedon’thavetodoourhomeworktoday.我们今天不必做作业。Nickdoesn’thavetowearauniform.尼克不必穿制服。(3)疑问句结构:Do/Does＋主语＋haveto＋动原＋其他如：Doyouhavetostayathomeonweekends?周末你必须呆在家里吗?Doesyourmotherhavetowork?你妈妈必须要上班吗？用haveto的正确形式填空。1.We________cleanourclassroomafterschool.（改为一般疑问句）Doyou/wehavetocleanyour/ourclassroomafterschool?3.It'slate.MrBeckman______gotoworkbycar.（改为一般疑问句）DoesMrBeckmanhavetogotoworkbycar?havetohasto1.Bequiet?(she/haveto/inthelibrary)Q:Doesshehavetobequietinthelibrary?A:Yes,shedoes.3bUsethewordstomakequestionsabouttherules.Thenwriteanswersaccordingtoyourschool.一般疑问句句式：Do/Does+主语+V原+......?Can+主语+V原+......?1.根据例句，可知要求我们造一般疑问句并根据实际情况进行回答。2.先确定句子的主语。3.再确定用情态动词还是用助动词来构成疑问语序。4.根据实际情况做出肯定或否定回答，答语的主语要与问句保持一致。2.Eat?(he/haveto/inthedininghall)Q:________________________________?A:_____________3.Listentomusic?(we/can/inthehallways)Q:________________________________?A:_____________4.Wearahat?(we/can/intheclassroom)Q:_____________________________?A:____________Thenanswerthequestions.Yes,hedoes.DoeshehavetoeatinthedininghallCanwelistentomusicinthehallwaysNo,wecan’t.CanwewearahatintheclassroomNo,wecan’t.Atmydreamschool,wedon’thavetocometoschooleveryday.…Wecaneatintheclassroom…3cMakeup(编造)fivecoolrulesforyourdreamschool.Shareyourruleswiththeclass.YourclassmatesvotefortheCoolestSchool!(GroupPK)Atmydreamschool,wedon’thavetocometoschooleveryday.Wecaneatintheclassroom.Wecanlistentomusicinclass.Wedon’thavetodohomework.Wedon’thavetowearschooluniformsatschool.Great!Jim’sschoolisthecoolest.Discussandmakerulesfortheyourdormitory(寝室).DormitoryRules1._______________2._______________3._______________4.________________5.________________制定规则Wemustbequietwhenit'stimeforbed.Don’tgetuplate.Don’tfightinthedormitory.Wemustcleanthedormitoryeveryday.DormitoryRules1.___________________________________2.___________________________________3.___________________________________4.___________________________________5.___________________________________Wemustbequietwhenit'stimeforbed.Wemustcleantheroomeveryday.Don’tgetuplate.Don’tfightinthedormitory.Turnoff(关闭)thelightsontime.1.抄写GrammarFocus两英一中;2.抄写P123Unit4单词五英一中;bequiet保持安静系动词be与形容词或介词短语联用，是英语一种常见的语句结构，表示某种状态。例如：beontime守时，按时beatwork在上班例如：Youmustbeontime,children.孩子们，你们一定要准时到。haveto与must(1)haveto意为“不得不…”强调客观需要。(2)must意为“必须…”强调主观上的愿望。They_______wearschooluniformseveryday.他们每天必须穿校服。It’slate.I_____gohomenow.天晚了，现在我必须要回家。havetomust练一练：用haveto,must填空1.It’scoldoutside.We______stayathome.2.We____begoodwithourparents.havetomust