B1情态动词和虚拟语气热点1·7①(2012·天津卷)It'squitewarmhere;we________turntheheatingonyet.A.couldn'tB.mustn'tC.needn'tD.wouldn't答案C[句意:这里很暖和;我们还不需要开暖气。考查情态动词用法。根据warm及句意可知C项正确。couldn't不能;mustn't禁止;wouldn't将不。]②(2012·上海卷)Thenewlawstatesthatpeople________driveafterdrinkingalcohol.A.wouldn'tB.needn'tC.won'tD.mustn't答案D[句意:新颁布的法律禁止人们酒后驾车。考查情态动词的用法。由题干中的law可知答案为D项。]③(2011·全国Ⅱ卷)Ifyou________smoke,pleasegooutside.A.canB.shouldC.mustD.may答案C[句意:如果你非要抽烟,请到外面去。本题考查情态动词。must用于条件句,表示“非要,偏要”。其他三项均不符合语境。]④(2011·上海卷)I________worryaboutmyweekend—Ialwayshavemyplansreadybeforeitcomes.A.can'tB.mustn'tC.daren'tD.needn't答案D[句意:我不必担心我的周末——我总是在周末来临之前就计划好了。考查情态动词。根据下文可知D项“没有必要”符合语境。A:不能,不可能;B:禁止;C:不敢。]⑤(2011·福建卷)—ShallIinformhimofthechangeoftheschedulerightnow?—Iamafraidyou________,incasehecomeslateforthemeeting.A.willB.mustC.mayD.can答案B[句意:——我该马上通知他日程改了吗?——我想你必须(通知他),以免他开会迟到。本题考查情态动词。must必须;will愿意,将要;may可以;can能够。根据句意可知,正确答案为B项。]⑥(2010·湖南卷)You________buyagift,butyoucanifyouwantto.A.mustB.mustn'tC.havetoD.don'thaveto答案D[句意:你不必买礼物了,但是如果你愿意的话也可以买。本题考查情态动词。根据句意可知此处需用否定形式,故排除A、C项;mustn't表示禁止;don'thaveto意为“不必……”。故答案为D项。]⑦(2010·陕西卷)—MayItakethisbookoutofthereadingroom?—No,you________.Youreaditinhere.A.mightn'tB.won'tC.needn'tD.mustn't答案D[句意:——我可以把这本书带出阅览室吗?——不行,绝对不可以。你(只能)在这里阅读。本题考查情态动词的用法。mightn't可能不;won't表意愿或决心;needn't不必;mustn't用于说话者不让某人做某事,语气强烈:绝对不可以。例如:Youmustn'tleavethegateopen.你一定不要敞着大门。]⑧(陕西卷)—Whatsortofhousedoyouwanttohave?Somethingbig?—Well,it________bebig—that'snotimportant.A.mustn'tB.needn'tC.can'tD.won't答案B[考查情态动词。根据应答句中的后一分句可知所填词意思是:不必,选B。]