七年级英语下册_Unit_4_Don’t_eat_in_class_Section_A_2d-3c课

1、arrive“到达”。Don’tarrivelateforschool.不要上学迟到。arrive是一个不及物动词，不能直接跟表示地点的名词。如果要跟名词，就必须加介词in或at。在大地方前加in（国家、城市等），在小地方前加at（家、学校、商店等）。arrivein/at+地点getto+地点reach+地点(到达某地)TheyarrivedinBeijingatsix.他们六点钟到的北京。Weusuallyarriveatthevillageinthemorning.我们通常在早上到那个小村庄。1)listen听；用来提醒某人注意，后面不跟事物。Listen!Who’ssingingintheclassroom?听！谁在教室里唱歌？2)如果后面跟要听的事物，应跟介词to再跟事物。Listentoourteachercarefully.认真听老师讲。3.fight打架，争吵1)作动词用Jackneverfightswithhisbrother.杰克从不和他的弟弟打架。2)作名词，意为“打架；争吵”;常用词组haveafight“打架；吵架”Didyouhaveafightwithher?你和她吵过架吗？2.listen的用法；4.wear意为“穿、戴”MyauntwearsablueskirtandawhiteT-shirt.我姑姑穿着蓝色的裙子，白色的T恤。Doeshewearglasses?他戴眼镜吗？5.—Whataretherules?规则是什么？—Well,wecan’tarrivelateforclass.哦，我们上课不能迟到。1)rule“规则”，可数名词，构成的短语有：obeytherules遵守规章beagainsttherulesbreaktherules6.Whatelsedoyouhavetodo?else“其他的”，用来修饰something,anything,nothing等，还可用来修饰疑问词what,where,who等，else修饰疑问词或不定代词时应后置。如:Doyouhaveanythingelsetodo？Whoelsedidyousee?7.情态动词haveto的用法haveto意思是“必须，不得不”，侧重于客观上的必要和外界的权威。1)结构:主语＋haveto＋动词原形＋其他(一般现在时,主语是第三人称单数时,用hasto；如：Wehavetowearsneakersforgymclass.在体育课上，我们必须穿运动鞋。Tomhastopracticetheguitareveryday.汤姆每天必须练习弹吉他。Ihadtogetupat5:00amlastMonday.上周一，我不得不早上5点起床。2)否定形式:主语＋don’thaveto＋动词原形＋其他(一般现在时,主语是第三人称单数时,用doesn’thaveto;Nickdoesn’thavetowearauniform.尼克不必穿制服。Wedidn’thavetodoourhomeworkatonce.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,Idon't.是的，我必须。/不，我不必。8.haveto与must1)haveto意为“必须做某事”强调“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It’slate.Imustgohomenow.天晚了。现在我必须要回家。•1.It’scoldoutside.We______stayathome.•2.We____begoodwithourparents.Wehavetowearauniformatschool.WehavetocleantheClassroomeveryday.Whatelsedoyouhavetodo?Let’slookatMary’sMondayatschool.There’sagymclasstoday.Ihavetowear_____________.sportsshoesButthere’sapartyatschooltoday,soIdon’thavetowear______________.uniformAfterschool,Ihavetocleanthe_________.classroomhaveto/hasto/hadtodon’t/doesn’thaveto=needn’t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,youdon’thavetogettoschoolbeforeseveninthemorning.Whatdotheyhavetodoatschool?Wehavetokeepquietinclass.用haveto或hasto填空。1.We________cleanourclassroomafterschool.2.She_________makeherbedaftergettingup.3.It’slate.MrBeckman______gotoworkbycar.4.EmilyandPeterjoinamusicclub.They_______practicetheguitareveryday.havetohavetohastohasto根据句意，用can和can’t填空。1.MrGreen_______smokeherebecausethere’sasignonthewall.Itsays“Nosmoking.”2.It’sveryhotoutside.You______wearahat.3.We_______eatintheclassroombecauseit’simpolitetoteachers.4.I______gotobedafter11:00onschoolnight.5.Thestudents_____readbooksandmagazinesinthelibrary.can’tcancan’tcancan’t1.IsJohnnewatschool?___________2.Aretheremanyrulesatschool?______________2dReadtheconversationin2dandanswerthequestions.Yes,heis.Yes,thereare.3.Canhebrightmusicplayerstoschool?_______________4.Dotheyhavetoalwaysweartheschooluniform?_______________No,hecan’t.Yes,theydo.2dRole-playtheconversation.1.不要在楼道里跑。__________________2.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。Don’tfight.Don’truninthehallways.Whataretherules?Wemustbeontimeforclass.Canweeatintheclassroom?No,wecan’t,butwecaneatinthedininghall.Canwewearahatinclass?8.他在学校里必须穿校服吗？__________________________________9.是的，必须。/不，不必。_______________________________10.你们必须做什么？_______________________________11.在图书馆里我们必须保持安静。_________________________________Yes,hedoes./No,hedoesn’t.Doeshehavetowearauniformatschool?Whatdoyouhavetodo?Wehavetobequietinthelibrary.肯定的祈使句：Comein,please!请进！Sitdown,please.请坐。Let'sgohome.我们回家吧。否定的祈使句是在动词前(即句首)加Don’t.Don’ttalkinclass!不要在课堂上讲话！Don’topenthewindow!别开窗！Don’tbelateforschool!上学别迟到一、祈使句1.用法：一般以动词原形开头，表示请求、命令、劝说、警告等。在祈使句中，通常省略句子主语第二人称you。2.句子结构1.(1)肯定句：__________+其他2.在餐厅里吃东西。________________________________1.在音乐教室里听音乐。________________________________1.骑自行车去上学。_________________________________动词原形Eatinthedininghall.Listentomusicinthemusicroom.Ridethebiketoschool.(2)否定句:_____+_________+其他不要和同学们打架。_______________________________不要在教室里打篮球。________________________________Don’tfightwithyourclassmates.Don’tplaybasketballintheclassroom.Don’t动词原形(3)以let引起的句子____+sb.+动词原形让我们步行去上学吧。_________________(4)No+动词-ing形式。表示“禁止、规劝”禁止停车！NoParking.禁止吸烟！NoSmoking.LetLet’swalktoschool.二、询问和讨论学校规则：1.━有什么规则？━我们必须保持安静。__________________2.━我们可以在上课的时候戴帽子吗？________________________________━不可以。你可以在外面戴帽子。_________________________________3.━你必须做什么事？__________━我们必须穿校服。________________________________4.他必须在校吃午饭吗？__________________________________Whataretherules?Wemustbequiet.Canwewearahatinclass?No,wecan’t.Youcanwearahatoutside.Whatdoyouhavetodo?Wemustweartheschooluniforms.Doeshehavetoeatlunchatschool?LibraryRules1.Don’ttalk.2.__________________3.__________________4.__________________3aWritetherulesfortheschoollibrary.Don’t