2025年春人教版英语七年级下册教学课件 Unit 2 No Rules,No Order 第3课时 Section A（Grammar Focus）

Unit2NoRules,NoOrder第三课时（语法课）GrammarFocus本课学习目标本节课结束时，学生能够：1.

学生能够通过观察和分析示例句子，深入理解并准确辨析祈使句和情态动词的表意功能。2.

学生能够掌握并运用祈使句和情态动词表达规则，同时能够关注表示命令时的委婉的语气。3.

学生能够熟练运用祈使句和情态动词介绍规则，并在班级活动中积极参与“绘制规则标识”游戏，最终评选出表现最佳的团队。按要求写出正确的单词、词组或句子。每件事(代词)__________ 2.糖果(名词)___________3.零食(名词)__________ 4.当然(短语)__________5.手机(短语)__________ 6.关掉(短语)__________7.想要做某事（短语）__________ 8.接电话（短语）___________9.一切都好吗？___________________________10.我们禁止把手机带到班级。_______________________11.这是另一条规则。___________________12.感谢你告诉我。

________________________________________everythingsweetlovelyofcoursemobilephoneturnoffwouldliketodoanswerthephoneIseverythingOk?Wemustn’tbringourmobilephonetoclass.That’sanotherrule.Thanksfortellingme.上节要点回顾Let’swatch

andanswer.Doyouknowtherules？Lookatthesesignsandguesstheirmeanings.Nofishing!Don’tpicktheflowers.Youmustn’tsmokehere.3aReadthesentences.Dotheverbsinboldneedtochangeforms?Why?GrammarFoucsWalkinthehallway.Don’trun!Bepoliteandtreatoneanotherwithrespect.Don’tlitter./Youmustn’tlitter./Youcan’tlitter.Canwebringourphonestoclass?No,wecan’t.Wemustkeeptheminourlockers.Canweeatsnacksinclass?No,wecan’teatinclass.Wehavetoeatinthedininghall.No,theydon’t.Becausetheverbsappearinimperativesentencesoraftermodalverbs.祈使句

(Imperativesentences)一、含义祈使句一般用来表示请求、命令、劝说、号召、警告等。在祈使句中，通常省略主语you，其肯定形式常以动词原形开头，否定形式是在动词原形前加don’t。祈使句句尾用句号或感叹号，读时用降调。为表示礼貌，可以在句首或句末加上please。句末用please时，前面通常加逗号。二、主要类型Walkinthehallway.Don’trun!祈使句类型1.Do型祈使句肯定句：实义动词原形(+宾语)(+其他).否定句：Don’t+实义动词原形(+宾语)(+其他).

Bepoliteandtreatoneanotherwithrespect.

Don’tbesad!祈使句类型2.Be型祈使句肯定句：Be+表语(+其他).否定句：Don’t+be+表语(+其他).二、主要类型Let’sgo.Letusgo.祈使句类型3.Let型祈使句肯定句：Let+宾语+动词原形(+其他).否定句：Don’t+let+宾语+动词原形(+其他).

或Let+宾语+not+动词原形(+其他).二、主要类型

Nosmoking!禁止抽烟!

Don’tbesad!祈使句类型4.No+动词-ing/名词!多为公共场合的提示语。5.Never+动词原形!多用来加强语气。二、主要类型情态动词

(modalverbs)一、含义情态动词用于表达说话人的态度、意愿、推测、建议、能力、义务等。没有人称和数的变化；后面必须跟动词原形来构成完整的谓语。情态动词can的用法Canwebringourphonestoclass?No,wecan’t.Wemustkeeptheminourlockers.can可表示能力、许可、请求等。其否定形式为can’t/cannot。1.表示能力，意为“能，会”。2.表示许可，意为“可以”。3.表示请求，意为“可以”。

情态动词haveto和must的用法No,wecan’t.Wemustkeeptheminourlockers.No,wecan’teatinclass.Wehavetoeatinthedininghall.haveto①常强调客观需要,多译为“不得不”；②有时态、人称和数的变化，其一般现在时的第三人称单数形式为hasto，过去式为hadto。haveto的否定形式为don’thaveto，表示“不必”。must①常表示说话人的主观看法，多译为“必须”；②没有时态、人称和数的变化。must的否定形式为mustn’t，表示“禁止，不准”。情态动词Havetohaveto表示不得不。常强调客观需要。其否定形式为don’thaveto。1.肯定句：主语+_____________+___________.2.

否定句：主语+_______________haveto+__________.3.

一般疑问句：__________+主语+haveto+__________?Yes,主语+_________./No,主语+____________.do/doesdon’t/doesn’thave/hasto动词原形动词原形动词原形Do/Doesdon’t/doesn’t1．—CanyouspeakEnglish,Lingling?—Yes,I________.A．must B．can C．should D．may2．Lucyisgoodatbasketball.She________playbasketballverywell.A．can B．can’t C．may D．need3．－Mary,_________youspeakChinese?－Yes,onlyalittle.A．must B．can C．need D．should4．Comeand________us!A．join B．joins C．joining D．tojoin单项选择BABA1.Don’tjumpthequeue.You______________waityourturn.2.I_____feedmydogmanykindsoffood,butI____givehimchocolate.Itisbadforhim!3.A:CanIleavetheclassroomifIdon’tfeelwell?B:Yes,butyou___________tellyourteacheraboutitwhenyou______beabsentfromclass.4.A:Hey!CanIlookatyourbook?B:Shh,we___________talkquietlyinthelibrary.5.A:Canyouputonyourseatbelt?We___________wearonewhenwe’reinacar.B:Sure.Thanks!Completethesentencesusingcan,haveto/must,orcan’t/mustn’t.haveto/mustcanhaveto/musthavetocan’thaveto/musthaveto/must3bjumpthequeue插队waityourturn等待你的顺序feedmydog喂狗leave离开beabsentfrom缺席quietly安静地putontheseatbelt系上安全带1.CanIleavetheclassroomifIdon’tfeelwell?leave

v.

离开；把......留下【翻译】1.TheplaneleavesforChinaat12a.m.2.Idon’twanttoleavehomtown.3.WearegoingtoleaveourcityforShenzhen.4.Ileftmykeysonthebus.leavesp.leaveforsp.leaveAforBleavesb./sth.【用法】离开某地动身去某地（目的地）离开A地去B地把某人/某物落下飞机于上午12点前往中国。我不想离开家乡。我们将要离开我们的城市去深圳。我把钥匙忘在公交车上了。Language

points用法例句feedraise2.Icanfeedmydogmanykindsoffoodfeed

v.

喂养；饲养【辨析】feed&raisefeed...(食物)to...(动物)feed...(人或动物)with...(食物)feedon...【用法】把......喂给......吃用......喂......以......为食，靠......为生（主语多为动物或婴儿）主要强调“喂养”“给（人）”提供食物，侧重具体喂食动作。当意思为“养育；抚养”时，侧重整体培育成长的过程。Canyoufeedthecat,please?Theyraisedthreechildren.Language

points3....whenyouhavetobeabsentfromclass.absent

adj.缺席的；不在的【解析】反义词为present“出席的，在场的”。beabsentfrom

缺席eg.Iwasabsentfromthemeeting.我缺席了这次会议。【拓展】absenceadj.缺席

eg.Idon’tknowhisabsencetoday.我不知道他今天缺席。Language

pointsLookatthefirstsignandreadtherules.Thenwritetherulesfortheothersigns.Donoteatordrink.Noeatingordrinking.Youcan’t/mustn’teatordrink.3cLookatthefirstsignandreadtherules.Thenwritetherulesfortheothersigns.3cDonotparkhere.Noparking.Youcan’t/mustn’tparkhere.Donottakephotoshere.Nophotos.Youcan’t/mustn’ttakephotos.Lookatthefirstsignandreadtherules.Thenwritetherulesfortheothersigns.3cDonotswimhere.Noswimming.Youcan’t/mustn’tswimhere.Donotfeedbirds.Nofeeding.Youcan’t/mustn’tfeedbirds.Ingroups,brainstormthreerulesforoneoftheplacesbelow.Thendrawsignstoshowtherules.Shareyoursignsinclassandexplainwhattheymean.Inthelibrary,wemustkeepquiet.Wemustn’tmakenoise.Wecan’t...

libraryschooldininghallparkcinemahospital3dIngroups,brainstormthreerulesforoneoftheplacesbelow.Thendrawsignstoshowtherules.Shareyoursignsinclassandexplainwhattheymean.KeepQuietWhileEatingThisruletellsthatstudentscanenjoytheirmealsinapeacefulenvironmentwithoutbeingdisturbedbyloudnoises.3dIngroups,brainstormthreerulesforoneoftheplacesbelow.Thendrawsignstoshowtherules.Shareyoursignsinclassandexplainwhattheymean.NoFoodorDrinksOutsidetheDiningAreaThisrulehelpsmaintaincleanlinessandorderintheschool,preventingfoodanddrinkspillsinareaswheretheyarenotmeanttobeconsumed.3dIngroups,brainstormthreerulesforoneoftheplacesbelow.Thendrawsignstoshowtherules.Shareyoursignsinclassandexplainwhattheymean.CleanYourTrayandTableAfterEatingThisrulepromotesresponsibilityandcleanlinessamongstudents,ensuringthatthedininghallremainstidyandpleasantforeveryonetouse.3d自我检测按要求写出正确的单词、词组或句子。插队(短语)__________ 2.喂养(动词)___________3.离开(动词)__________4.缺席(短语)__________5.轻声地(副词)__________ 6.座椅安全带(短语)__________7.制造噪音（短语）__________8.电影院（名词）___________9.在走廊里步行。___________________________10.我们能把手机带到学校吗？_______________________11.我们不得不在餐厅吃东西。___________________12.你能戴上座椅安全带吗？________________________________________jumpthequeuefeedleavebeabsentfromquietlyseatbeltmakenoisecinemaWalkinthehallway.Canwebringthephonestoclass?Wehavetoeatinthedinninghall.Canyouputonyourseatbelt?1.Theycanplaytheviolinandthedrums.（对画线部分提问）

__________________they_________?2.Youcangoswimmingwithusthisafternoon.（改为一般疑问句）

_______you_______swimmingwithusthisafternoon?3.—MustIkeepthewindowopenallday?

（作否定回答）—No,you___________________.CanWhatcan根据要求完成句子dogoneedn’t/don’thaveto自我检测1.—Max,______beafraidofspeakinginfrontofpeople.Youarethebest!—OK,Iwon’t.A.doesn’t B.not C.isn’t D.don’t2.—_______Itakephotoshere?—Sorry,youcan’t.A.MustB.NeedC.CanD.Will3.Look!Thesignonthewallsays,“No_______!”A.smokeB.tosmokeC.smokedD.smokingD单项选择CD自我检测根据要求改写句子Youmustwearauniformatschool.（改为否定句）Wecanlistentomusicintheclassroom.（改为一般疑问句，并作否定回答）Don'ttalkinthelibrary.（改为同义句）Hehastogetupearly.（改为一般疑问句）Let'splaybasketballafter