人教版英语七年级下册-Unit-4-Section-A-Grammar-Focus-3c

Unit4Don’teatinclass.SectionAGrammarFocus-3cTolearntouse“can”forpermission.Tolearntowritetherules.Tolearntomakequestionsaboutrulesandanswer.ObjectivesDon’tsmoke!Nosmoking!WarmingUpTellyourclassmatewhattherulesshouldbe.Don’tfight.Nofighting!Don’truninthehallways.Don’tarrivelateforclass.Wehavetowearuniforms.Don’truninthehallways.Don’tfight.Whataretherules?Wemustbeontimeforclass.Canweeatintheclassroom?No,wecan’t,butwecaneatinthedininghall.Canwewearahatinclass?Yes,wecan./No,wecan’t.Doeshehavetowearauniformatschool?Yes,hedoes./No,hedoesn’t.Whatdoyouhavetodo?Wehavetobequietinthelibrary.GrammarFocus1.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._______________________________阅读GrammarFocus部分，完成下列句子。Don’tfight.Don’truninthehallways.Whataretherules?Wemustbeontimeforclass.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？_____________________________Canwewearahatinclass?No,wecan’t,butwecaneatinthedininghall.Canweeatintheclassroom?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.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)肯定句：__________+其他在餐厅里吃东西。________________________________在音乐教室里听音乐。________________________________骑自行车去上学。________________________________Ridethebiketoschool.Eatinthedininghall.动词原形Listentomusicinthemusicroom.(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。___________________________________Whataretherules?Wemustbequiet.Canwewearahatinclass?No,wecan’t.Youcanwearahatoutside.3.—你们必须做什么事？_______________________—我们必须穿校服。________________________________4.他必须在校吃午饭吗？__________________________________Wemustweartheschooluniforms.Whatdoyouhavetodo?Doeshehavetoeatlunchatschool?Writetherulesfortheschoollibrary.LibraryRules1.2.3.4.Don’ttalk.Don’teat.Don’tlistentomusic.Don’ttakephotos.3aUsethewordstomakequestionsabouttherules.Thenwriteanswersaccordingtoyourschool.Bequiet?Q:Doesshehavetobequietinthelibrary?(she/haveto/inthelibrary)?A:Yes,shedoes.Eat?Q:___________________________________________________________________________________________(he/haveto/inthedininghall)?A:__________________Doeshehavetoeatinthedininghall?Yes,hedoes.3bListentomusic?Q:___________________________________________________________________________________________(we/can/inthehallways)?A:__________________Wearahat?Q:___________________________________________________________________________________________(we/can/intheclassroom)?A:__________________Canwelistentomusicinthehallways?No,wecan’t.Canwewearahatintheclassroom?No,wecan’t.1.Wecaneatinclass.2.Wedon’thavetocometoschooleveryday.3.…Makeupfivecoolrulesforyourdreamschool.Shareyourruleswiththeclass.YourclassmatesvotefortheCoolestSchool!Atmydreamschool,wedon’thavetocometoschooleveryday.We…3cAtmydreamschool,wedon’thavetocometoschooleveryday.…Wecaneatinclass.…Wedon’thavetowearschooluniforms.…Wecanlistentomusicinclass.…Wecaneatintheclassroom.…Wedon’thavetodohomework.…Atmydreamschool,wedon’thavetocometoschooleveryday.Wecaneatintheclassroom.Wecanlistentomusicinclass.Wedon’thavetodohomework.Wedon’thavetowearschooluniformsatschool.MakeourschoolrulesDearstudents:Inorderthatwecanhaveagoodenvironment(环境),weshouldhavesomerulesinourschool.Herearesomesuggestions.Wehopethatallofuscanhavealookatthem.1.Don’tsleepinclass.2.Cleantheclassroomeveryday.3.__________________________4.__________________________5.__________________________6.__________________________Yours____haveto的用法haveto意思是“必须、不得不”,它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；句子是过去时，用hadto。)如：LanguagepointsWehavetowearsneakersforgymclass.在体育课上,我们必须穿运动鞋。Tomhastopracticetheguitareveryday.汤姆每天必须练习弹吉它。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；句子是过去时，用didn’thaveto)e.g.Nickdoesn’thavetowearauniform.尼克不必穿校服。Wedidn’thavetodoourhomeworkatonce.我们不必马上完成作业。3)疑问句：Do(Does或Did)＋主语＋haveto＋动词原形＋其他如:--Doyouhavetostayathomeonweekends?--Yes,Ido./No,Idon’t.周末你必须待在家里吗？是的,我必须。/不,我不必。Didhehavetogotobedby11:00lastnight?昨晚,他不得不11点上床睡觉吗？Ⅰ.用所给单词的适当形式填空。1.Don’t________(listen)tomusicinthelibrary.2.Dowehaveto________(clean)theroomeveryday?3.Youcan’t________(wear)sunglassesintheclassroom.4.Please________(arrive)atschoolontime(准时).5.Johnisoftenlatefor_______(class).classlistencle