七年级英语下册件SectionAac--恢复.pptx

Unit4Donteatinclass.教学教学课件设计课件设计洪江市托口中学洪江市托口中学刘利群刘利群Unit 4Donteatinclass.Section A grammar focus3cWhat do we have to do at school or in the classroom?What cant we do?Lets look and say some school or class rulers.教师寄语教师寄语：Norules,nostandards.(没有规矩不成方圆。）没有规矩不成方圆。）We have to do some reading every morning.Wehavetoexerciseeveryday.Wehavetoworkhardandhelpeachother.Wehavetocleanourclassroomandkeepitcleaneveryday.WehavetowearourschoolIDcard.Wehavetodohomeworkafterschool.Dontfightwithothers.=Wecantfightwithothers.Dontarrivelateforclass.=Wecantarrivelateforclass.Wecanteatinclass.=Donteatintheclassroom.Donthavelonghairforboys.=Boyscanthavelonghair.Dontsleepinclass.=Wecantsleepinclass.Wecantruninthehallways.=Dontruninthehallways.Dontplaysportsintheclassroomorinthehallways.Butwecanplayitoutside.Donttalkinclass.Dont talkwitheachotherinclass.Stop talkinginclass.Dontsmoke.Itsbadforyourhealth.Dont play cards at school.Dontlistentomusicintheclassroom.Letstalkaboutourfamilyrules.Dontwastewater.Turnoffthelightswhenweleavetheroom.eatinbedwatchTVlatetalkloudlyonthephonegetuplateonSundaysplaycomputergameslateatnightsingloudlyatnightmakethebedaftergettingupcleanthebedroomA:What do you have to do at home?B:We have toA:What cant you do?B:We cant Dontruninthehallways.Dontfight.Whataretherules?Wemustbeontimeforclass.Canweeatintheclassroom?No,wecant,butwecaneatinthedininghall.Canwewearahatinclass?Yes,wecan./No,wecant.Doeshehavetowearauniformatschool?Yes,hedoes./No,hedoesnt.GrammarFocusWhatdoyouhavetodo?Wehavetobequietinthelibrary.情态动词can的用法1)表示能力“会,能”Canyouplaytheguitar?你会弹吉他吗？JimcanspeakChinese.吉姆会说中文。Icandanceandsing.我能唱歌又能跳舞。2)表示允许、许可,“可以”、“能”Canthestudentsruninthehallway学生们可以在走廊上跑吗？Wecaneatoutside.我们可以在外面吃东西。注意注意:和大部分情态动词一样和大部分情态动词一样,can在否在否定句中定句中,直接在直接在can后加上后加上not,在疑问句在疑问句中中,把把can放到主语前面放到主语前面,并且没有人称并且没有人称和数的变化和数的变化。haveto的用法的用法表示客观的必要性：表示客观的必要性：“必须，不得不必须，不得不”，在一定意义上与，在一定意义上与must可以互换。可以互换。must没有人称，数和时态的变化。没有人称，数和时态的变化。haveto有人称，数和时态变化。有人称，数和时态变化。Wehavetodohomeworkafterschool.They must be on time for class.She has to be quiet in the library.Do you have to go to school on time?注意注意:haveto在否定句中在否定句中,直接在直接在haveto前面加前面加dont,在一般疑问句中在一般疑问句中,在主语前在主语前面加助动词面加助动词do,并且有人称，数和时态的变并且有人称，数和时态的变化。化。肯定祈使句肯定祈使句Sitdown.Comein.Eatathome.Letsgohome.否定祈使句否定祈使句Dontsitdown.Dontcomein.Donteatathome.Donttalkinclass.祈使句用来表示请求、命令、叮嘱、号召或者劝告等,主语常是第二人称you,也就是听话者,因而you常省去。祈使句的开头是动词原形。句首或句末加上句首或句末加上please，若在句末加，若在句末加please，之前要用逗号，之前要用逗号隔开。隔开。祈使句的否定形式多以祈使句的否定形式多以donot(常缩写成常缩写成dont)开头开头,再再加上动词原形。加上动词原形。1.Sitdown.2.Comein.3.Eatathome.Dontsitdown.Dontcomein.Donteatathome.把下列祈使句改成否定句把下列祈使句改成否定句Practice:4.Listentomusicoutside.5.Doyourhomeworkatschool.Dontlistentomusicoutside.Dontdoyourhomeworkatschool.1.late,dont,forschool,arrive2.music,listento,intheclassroom,dont3.eat,cant,intheclassroom,weDont arrive late for school.Dontlistentomusicintheclassroom.Wecanteatintheclassroom.Form sentences.组句组句 Dontsmoke.Nosmoking!Donttakephotos.Nophotos!Pleaseturnright!Doyouknowthese?Dontparkhere.Noparking.Dontturnleft.Donttalkloudly!Donttalk!Notalking!Libraryrules1.Donttalk.2._3._4._Donteat.Writetherulesfortheschoollibrary.3aDontlistentomusic.Donttakephotos.Usethewordstomakequestionsabouttherules.Thenwriteanswersaccordingtoyourschool.3b1.Bequite?Q:Doesshehavetobequiteinthelibrary?(she/haveto/inthelibrary)A:Yes,shedoes.2.Eat?Q:_(he/haveto/inthedininghall)?A:_Doeshehavetoeatinthedininghall?No,hedoesnt.Hecanalsoeatoutside.3.Listentomusic?Q:_(we/can/inthehallways)?A:_4.Wearahat?Q:_(we/can/intheclassroom)?A:_Canwelistentomusicinthehallways?Canwewearahatintheclassroom?No,wecant.No,wecant.3c Makeupfivecoolrulesforyourdreamschool.Shareyourruleswiththeclass.YourclassmatesvotefortheCoolestSchool!Atmydreamschool,wedonthavetocometoschooleveryday.WeThebestschoolrules1.Wecaneatinclass.2.Wedonthavetocometoschooleveryday.3.4.用所给单词的适当形式填空。用所给单词的适当形式填空。1.Dont_(listen)tomusicinthelibrary.2.Dowehaveto_(clean)theroomeveryday?3.Youcant_(wear)sunglassesintheclassroom.4.Please_(arrive)atschoolon time(准时准时).5.Johnisoftenlatefor_(class).classlistencleanweararrive将下面的句子改为祈使句，每空一词。将下面的句子改为祈使句，每空一词。1.Youcancomein._,please.2.Icanhelpyou._me_you.3.Youcanteatinclass._inclass.4.Youcantbelateforschool._lateforschool.5.Youcanttakephotoshere._photoshere.ComeinLethelpDonteatDontbeNo Summary:1.情态动词can的用法2.肯定祈使句和肯定祈使句和否定祈使句祈使句的常见句型结否定祈使句祈使句的常见句型结构构3.通过谈论校规、家规及图书室规则，通过谈论校规、家规及图书室规则，进一步进一步掌握祈使句的用法，学会拟定规则，逐渐养成掌握祈使句的用法，学会拟定规则，逐渐养成自觉遵自觉遵守校纪班规的好习惯。守校纪班规的好习惯。