祈使句学案练习 人教版英语八年级上册

祈使句【概念引入】

概念：用来表示请求、命令、叮嘱、建议等的句子叫祈使句。特点：形式上无主语，动词原形开头。【祈使句的常见形式】祈使句的肯定形式Do型：__________________________________Standup!Openthedoor.回到你的座位！________________________________请进！________________________________________(为表示礼貌，祈使句常在句前或句末加please.句末用please，前面通常加逗号）Be型:_________________________________Bequiet!Beagoodstudent!小心！__________________________________要做一个好孩子！__________________________Let型：______________________________Letherin!Let’sgohome!让我们去公园吧！______________________________让我来帮你。__________________________________祈使句的否定形式：Don’t型否定：________________________________Don’tbelievehim!Don’tbecareless!别迟到！______________________________不要浪费时间！_____________________________Let型否定：_______________________________Don’t+let+宾语+动词原形+其他成分Let+宾语+not+动词原形+其他成分别让他走。___________________________________No型：_________________________________（日常生活中常见的警示语）Nofishing！Noparking！禁止拍照！____________________________________________禁止吸烟！____________________________________________Never型：___________________________________________永不放弃！___________________________________________【祈使句的回答】祈使句的动作通常是表示将来发生的动作，所以回答祈使句时，一般用will或won’t.以let开头的句式的肯定回答多用___________________来回答，否定回答用____________________________________★【祈使句的反意疑问句】肯定祈使句的反意疑问句，反问部分用_______________________.Pleaseopenthedoor,____________________?否定祈使句的反意疑问句，反问部分只用_____________________.Don’tbelateagain,_____________________?以let’s开头的祈使句反意疑问部分用______________________.Let’sturnonTV,______________________________?★注意：只有以Let's开头的祈使句的反意疑问句的反问部分才有shallwe，而Letus开头的祈使句的反意疑问句的反问部分应为won'tyou【祈使句与简单句、复合句之间的转换】1.＂Let’s+动词原形+其他＂可转换为＂Shallwe+动词原形+其他?＂。Let’sgofishingthisafternoon.=Shallwegofishingthisafternoon?2.＂祈使句+and/or+简单句＂可转换为含if引导的条件状语从句的复合句。Useyourhead,andyou’llfindaway.=Ifyouuseyourhead,you’llfindaway.Hurryup,orwe’llbelate.=Ifwedon’thurryup,we’llbelate.结构Do型肯定：否定：Be型肯定：否定：Let型肯定：否定：其他否定：即学即练1.Please____,they’rehavingameeting.A.notbesonoisyB.bequiteC.mustn’ttalkD.nospeaking2.____tomeetmeatthestation.I’llbewaitingthere.A.NottoforgetB.NotforgetC.ForgetnotD.Don’tforget3.It’safineday.Let’sgofishing,____?A.won’tweB.willyouC.don’tweD.shallwe4.Don’tsmokeinthemeeting-room,____?A.doyouB.willyouC.canyouD.couldyo5.______mego.Itisveryimportantforme.A.DoletB.LetdoC.DoingletD.Todolet6.Heisnothonest.______believehim.A.NotB.Don’tC.TonotD.Notto7._____upearlytomorrow,oryoucan’tcatchthetrain.A.GettingB.GetC.TogetD.Got8._____inthestreet.It’sdangerous.A.NotplayB.NottoplayC.Don’tplayD.Don’ttoplay9._______lateagain,Bill!A.Don'ttobeB.Don'tbeC.NotbeD.Benot10.Pleasehelpmecarryit,______?A.willIB.willyouC.shallID.shallwe11.Don'tmakesomuchnoise,______?A.willyouB.won'tyouC.shallweD.doyou12.________methetruth,orI'llbeangry.A.TellingB.TotellC.ToldD.Tell二.用括号内所给动词的适当形式填空。1.It’sanimportantmeeting._______(not,be)late.2.________(not,make)anynoise!Yourmotherissleeping.3.________(not,speak)withyourmouthfulloffoodand________(be)polite.4.________(not,talk)and________(read)aloud.5.________(not,leave)yourhomeworkfortomorrow,Larry.6.________(look)out!Acariscoming.7._______(give)ustenyearsandjustseewhatourcountrywillbelike.8._______(not,let)thebabycry.9.Wearmoreclothesoryou_______(catch)acold.Let’s_______(not,say)anythingaboutit.句型转换11.Willyoupleasereaditagainmoreslowly?（改为祈使句）__________againmoreslowly,please.12.Ifyoudon'tlistentome,I'llgo.（改为同义句）__________me,orI’llgo.13.Let'swatchthesportsgames.（改为反意疑问句）Let'swatchthesportsgames,__________?14.Theteachersoftentellthestudentsnottobecareless.（改为祈使句）__________careless,please.15.PleasesitnexttoNancy.（改为否定句）__________nexttoNancy.16.Don'tforgettoturnof