B1 情态动词和虚拟语气
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Ⅰ.单项填空
①(2010·山东卷)I ________have watched that movie—it'll give me horrible dreams.
A．shouldn't B．needn't C．couldn't D．mustn't
答案 A [句意：我本不应该去看那部电影——它会使我做噩梦的。考查情态动词。shouldn't have done本不该做，但是做了；needn't have done本没必要做，但是做了；couldn't have done不可能做了某事。无mustn't have done结构。根据题干所提供信息应选A项。]
②I told Sally how to get there, but perhaps I ________for her.
A．had to write it out B．must have written it out
C．should have written it out D．ought to write it out
答案 C [句意：我告诉Sally怎么去那，但是或许我本该为她写下来。should have done本该做，但是没做。]
