形式例句肯定祈使句(谓语动词用动词原形)Becareful!小心!否定祈使句(在谓语动词加Donot/Don't/Never)Don'topenthedoor.Let开头的祈使句(Let's/Letsb+动词原形)Letmehaveatry.让我试试吧“No+名词或动名词”也可以构成祈使句。用于“指示标牌、布告”等,意为“禁止、不许”。Nospitting!不准随地吐痰!无动词祈使句。有些用于口号、告示的祈使句不用动词,使语言更加简洁明了。Afteryou!您先请!“Whynot+动词原形?Whynotdoasyourteachertellsyouto?Wouldyoumind+V-ing?”Wouldyoumindallowingustousethebasinbythesideofthecupboard?“Will/Would/Can/Couldyouplease+动词原形?Will/Would/Can/Couldyoupleasegiveusinstructionsforusingthelaboratory?祈使句1.(2016·湖北黄石)40.______tosmileatyourlifewhenyouareintrouble,andyouwillsoonbehappyagain.A.TryB.TotryC.TryingD.Tried【解析】A:考查祈使句。祈使句以动词原形开头。故选A。句意:当你处于困境中时,努力对生活微笑,你不久就会再次快乐起来。2.(2016•四川攀枝花)24._________yourumbrella,oryou’llcatchacoldonsucharainyday.A.TakeB.TotakeC.TakingD.Takes【解析】A考查祈使句。句意:带上你的雨伞,否则你在这样的下雨天会被淋感冒的。本题含有“祈使句+or+陈述句”结构。故选A。3.(2016•湖南湘西)30.—_______runinthehallways,Mike.—Sorry.Ms.Clark.A.Don’tB.PleaseC.No【解析】A考查祈使句。句意:—不要在走廊里跑,迈克。—对不起,克拉克老师。分析句子结构知,本句为祈使句,祈使句是用动词原形开头的,否定句用don’t,故选A。4.(2016·广东)33.Tommy,_____playbasketballinthestreetnexttime.Youmaygethitbyacar.A.doB.don’tC.mustD.mustn’t【解析】B考查祈使句。句意:汤米,下次不要在街上踢足球了。汽车可能会撞着你。在祈使句中,肯定句用动词原形,否定句以don’t开头。5.(2016•山东泰安)33.Asweallknow,lifeisshortbutamazing._____it!A.EnjoyB.ToenjoyC.EnjoyingD.Enjoyed【解析】A考查祈使句的用法。句意:众所周知,生命短暂,但是很令人惊异的。享受它吧!根据题干知,这里用祈使句,故选A。