外研版七下英语Unit 4《单元语法沙龙》课件

单元语法沙龙Unit4Theartofhavingfun自主学习语法现象观察下列句子，按照祈使句的类型进行分类1.Doyourhomeworkcarefully. 6.Notalkingduringthetest.2.Bequietinthelibrary. 7.Letmehelpyouwithyourbags.3.Don’tforgettoturnoffthelights. 8.Nosmokingintherestaurant.4.Becarefulwhenyoucrossthestreet.5.Let’sgoforawalkafterdinner.Do型祈使句：__________

Be型祈使句：__________Let型祈使句：__________

No型祈使句：__________1；32；45；76；8合作探究语法考点祈使句祈使句是用来表示请求、命令、建议、劝告等的句子。通常省略主语you，句首用动词原形。考点1祈使句的肯定形式·Doyourbestintheexam.考试时要尽力而为。·Becarefulnottofalloffthebike.骑自行车时要小心，别摔下来。·Letmeshowyouhowtodoit.让我来给你演示怎么做。考点2祈使句的否定形式·Don’tforgettowatertheplants.别忘了给植物浇水。·Don’tbeafraidofmakingmistakes.不要害怕犯错误。·Don’tletthechildrenplaywithsharptools.不要让孩子们玩锋利的工具。·Noparking!禁止停车！敲黑板为使语气更委婉，可以在祈使句的句首或句尾加please。please在句尾时，常用逗号和前面隔开。如：Don’tclosethedoor,please.请不要关门。对点突破语法专练一、单项选择1.[绥化]“LiMing,________yourhomeworkfirst,andyoucanwatchTVfor30minutes,”saidhismum.A.doesB.didC.doC2.________wakeupyoursister,Ben.Sheneedsagoodsleep.A.Don’tB.Doesn’tC.Aren’tD.Can’tA3.Frank,________playbasketballinthestreetnexttime.Youmaygethitbyacar.A.doesn’tB.don’tC.mustD.mustn’tB4.—Don’teatinclass,John!—________.A.GoodideaB.ThanksalotC.Sorry,Mr.SmithD.ThankyouC5.________swimintheriveralone,Karen.It’stoodangerous.A.NotB.Don’tC.Doesn’tD.BenotB二、按要求完成句子6.Wegotothelibrarytoreadbooksontheweekend.(用let改为祈使句)______________tothelibrarytoreadbooksontheweekend.7.Openthedoor.(改为否定句)________________________thedoor.Let’sgoDon’topen8.Listentomusicinclass.(改为否定句)_________________________________________________9.Youcan’tarrivelateforclass.(改为祈使句)____________________lateforclass.10.Don’tsmokehere!(改为同义句)__________smoking!Don’tlistentomusicinclass.Don’tarriveNo三、用括号中所给词的适当形式填空Wehavemanyrulesinourschool.11.____________(wear)ourschooluniformsinschool.12.____________(not)belateforschool.13.____________(listen)totheteachercarefullyinclass.TheserulesaregoodforourstudyandIlikethem.14._____________________(notbring)phonestoschool.15.____________(not)gotothemoviesonweekends.Ithinktheserulesarenotgoodbecausewes