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1、Unit4Donteatinclass.SectionA(3a-3c)DiscussionDont listen to music in the classroom or hallways.Listen to music in themusic room.Dont eat in the classroom.Eat in the dining hall.Dont wear a hat.Dont fight.Dont arrive late for class.Be on time for class.Dont run in the hallways.Run outside.Pairwork-Wh
2、ataretherulesinourschool?Canweinourschool?-Yes,wecan./No,wecant.Pleasedont.Lets talk!Lets talk!lKeep quiet and dont make noise.(吵闹吵闹)lDont spit(吐痰吐痰).lYou cant take the books away.lYou can borrow(借借)the books if you have a card.1.school rules 2.lab(实验室实验室)rules3.library rules 4.traffic(交通交通)rules5.c
3、inema(电影院电影院)rules 6.class rules7.park rules 8.family rulestherulesfortheschoollibraryDonttalk!Notalking!Donttakephotos!Nophotos!Dontusemobilephones!Nomobilephones!Dontspit!Nospitting!Dontlistentomusic!Nomusic!Pleasebe/keepquiet!Donteat!Nofood!Dontsmoke!Nosmoking!beimportantDontbenoisy!1.不要在楼道里跑。_2.
4、不要打架。_3.有什么规则？_4.我们必须按时上课._5.我们可以在教室里吃东西吗？_6.不能。但我们可以在餐厅里吃东西。_7.我们可以在上课的时候带帽子吗？_阅读GrammarFocus部分，完成下列句子。Dontfight.Dontruninthehallways.Whataretherules?Wemustbeontimeforclass.Canweeatintheclassroom?No,wecant,butwecaneatinthedininghall.Canwewearahatinclass?肯定祈使句肯定祈使句否定祈使句否定祈使句1.Sitdown.2.Comein.3.Eata
5、thome.4.Listentomusicoutside.5.Doyourhomeworkatschool.Dontsitdown.Dontcomein.Donteatathome.Dontlistentomusicoutside.Dontdoyourhomeworkatschool.Examples祈使句祈使句1.祈使句是表示命令、叮嘱、号召等的句子祈使句是表示命令、叮嘱、号召等的句子;2.通常省略主语通常省略主语you;3.句中谓语动词用动词原形句中谓语动词用动词原形;4.祈使句有肯定和否定两种：祈使句有肯定和否定两种：Donteatinclass.Comein,please!请进！请进！
6、Sitdown,please.请坐。请坐。Dontplaysportsintheclassroom.Dontfight.否定否定肯定肯定Libraryrules1.Donttalk.2._3._4._Donteat.Writetherulesfortheschoollibrary.3aDontlistentomusic.Donttakephotos.Usethewordstomakequestionsabouttherules.Thenwriteanswersaccordingtoyourschool.3b1.Bequite?Q:Doesshehavetobequiteinthelibrary
7、?(she/haveto/inthelibrary)A:Yes,shedoes.2.Eat?Q:_(he/haveto/inthedininghall)?A:_Doeshehavetoeatinthedininghall?No,hedoesnt.Hecanalsoeatoutside.3.Listen to music?Q:_ (we/can/in the hallways)?A:_ 4.Wear a hat?Q:_ (we/can/in the classroom)?A:_Canwelistentomusicinthehallways?Canwewearahatintheclassroom?
8、No,wecant.No,wecant.Make up five cool rules for your dream school.Share your rules with the class.Your classmates vote for the Coolest School!3c1.Wecaneatinclass.2.Wedonthavetocometoschooleveryday.3.情态动词情态动词haveto的用法的用法haveto意思是意思是“必须，不得不必须，不得不”，侧重于客观上的必要，侧重于客观上的必要和外界的权威。和外界的权威。1)结构结构:主语主语haveto动词原形
9、其他动词原形其他(一般现在时一般现在时,主语是第三人称单数时主语是第三人称单数时,用用hasto；如：如：Wehavetowearsneakersforgymclass.在体育课上，在体育课上，我们必须穿运动鞋。我们必须穿运动鞋。Tomhastopracticetheguitareveryday.汤姆每天必须练习弹吉他。汤姆每天必须练习弹吉他。Ihadtogetupat5:00amlastMonday.上周一，上周一，我不得不早上我不得不早上5点起床。点起床。2)否定形式:主语donthaveto动词原形其他(一般现在时,主语是第三人称单数时,用doesnthaveto;Nickdoesnth
10、avetowearauniform.尼克不必穿制服。Wedidnthavetodoourhomeworkatonce.我们不必马上完成作业。3)疑问句:Do(Does)主语haveto动词原形其他如:Doyouhavetostayathomeonweekends?周末你必须待在家里吗？Yes,Ido./No,Idont.是的，我必须。/不，我不必。haveto与must1)haveto意为“必须做某事”强调“客观需要客观需要”Theyhavetowearschooluniformseveryday.他们每天必须穿校服。2)must意为“必须”强调主观上的愿望主观上的愿望Itslate.Imus
11、tgohomenow.天晚了。现在我必须要回家。1.Itscoldoutside.We_stayathome.2.We_begoodwithourparents.haveto/hasto/hadtodont/doesnthaveto=neednt必须，不得不不必、没有必要1.我们必须穿校服吗？2.玛丽必须穿运动鞋上体育课。3.琳达，你不必在上午七点前到校。4.他们在学校不得不做什么呢？5.我们必须在课上保持安静。Dowehavetowearauniform?MaryhastowearsportsshoesforPEclass.Linda,youdonthavetogettoschoolbefo
12、reseveninthemorning.Whatdotheyhavetodoatschool?Wehavetokeepquietinclass.用haveto或hasto填空。1.We_cleanourclassroomafterschool.2.She_makeherbedaftergettingup.3.Itslate.MrBeckman_gotoworkbycar.4.EmilyandPeterjoinamusicclub.They_practicetheguitareveryday.havetohavetohastohasto根据句意，用can和cant填空。1.MrGreen_smo
13、keherebecausetheresasignonthewall.Itsays“Nosmoking.”2.Itsveryhotoutside.You_wearahat.3.We_eatintheclassroombecauseitsimpolitetoteachers.4.I_gotobedafter11:00onschoolnight.5.Thestudents_readbooksandmagazinesinthelibrary.cantcancantcancant根据句意，用根据句意，用can和和cant填空。填空。1.MrGreen_smokeherebecausetheresasig
14、nonthewall.Itsays“Nosmoking.”2.Itsveryhotoutside.You_wearahat.3.We_eatintheclassroombecauseitsimpolitetoteachers.4.I_gotobedafter11:00onschoolnight.5.Thestudents_readbooksandmagazinesinthelibrary.cantcancantcancant用用haveto或或hasto填空。填空。1.We_cleanourclassroomafterschool.2.She_makeherbedaftergettingup.
15、3.Itslate.MrBeckman_gotoworkbycar.4.EmilyandPeterjoinamusicclub.They_practicetheguitareveryday.havetohavetohastohasto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.John
16、isoftenlatefor_(class).classlistencleanweararrive将下面的句子改为祈使句，每空一词。1.You can come in._ _,please.2.I can help you._ me _ you.3.You cant eat in class._ _ in class.4.You cant be late for school._ _ late for school.5.You cant take photos here._ photos here.Come inLet helpDont eatDont beNo1._ fight with o
17、thers.A.Not B.No C.Dont D.Doesnt2.-_we eat in the dining hall?-Yes,we_A.Do,does B.Can,do C.Do,can D.Can,can3.You cant eat _ outside.A.at B.C.in D.on4.Listen to music in hallways.(改为否定句改为否定句)listen to music in hallways.5.Dont arrive late for class.(改为同义句改为同义句)Dont _ _ for class.Dontbe lateTalkaboutyourschoolday.Whatcanyoudoandwhatdoyouhavetodo?Thenmakealist.Letstalkaccordingtothelist.Canweeatinthehallway?Yes,wecan./No,wecant.Dowehavetowearauniform?Yes,wedo./No,wedont.