B1 情态动词和虚拟语气 热点1·7
①(2012·天津卷)It's quite warm here; we ________turn the heating on yet. A．couldn't B．mustn't C．needn't D．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)The new law states that people ________drive after drinking alcohol. A．wouldn't B．needn't C．won't D．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)If you ________smoke, please go outside. A．can B．should C．must D．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 ________worry about my weekend—I always have my plans ready before it comes. A．can't B．mustn't C．daren't D．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)—Shall I inform him of the change of the schedule right now? —I am afraid you ________， in case he comes late for the meeting. A．will B．must C．may D．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 ________buy a gift, but you can if you want to. A．must B．mustn't C．have to D．don't have to 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't have to意为“不必……”。故答案为D项。] ⑦(2010·陕西卷)—May I take this book out of the reading room? —No, you ________．You read it in here. A．mightn't B．won't C．needn't D．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：You mustn't leave the gate open.你一定不要敞着大门。] ⑧(陕西卷)—What sort of house do you want to have? Something big? —Well, it ________be big—that's not important. A．mustn't B．needn't C．can't D．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。]

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