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情态动词 [专项训练]单句语法填空(2015·高考天津卷改编)I ____________ have worried before I came to the new school解析：句needn’t have done本没有必要做某事表示实际上已经做了某事。答案：needn’t(2015·高考浙江卷改编)It was so noisy that we ____________hear ourselves speak.解析：句意：这里如此吵闹以至于我们听不见自己讲话。由语境可知此处表示“couldn’t。答案：couldn’t(2015·高考重庆卷改编)You _____________be Carol.You haven’t changed a bit after all these years.解析：句意：你一定是卡萝尔。这么多年你一点都没有变化。根据后文的You haven’t changed a bit可知说话者完must。答案：must4．(2015·北京丰台区期末考试改编)Judging from his accent____________not be from Australia. 解析：句意：从他的口音判断他不可能来自澳大利亚。由句意可知本题考查情态动词表示推测用于否定句表示“不可能”。答案：can(2015·江西省红色六校联考改编)One of our rules here is that every student _____________wear school uniform while at school.解析：句意：这里的规章之一就是每个学生在校期间应当穿校服。shall用于第二、三人称的陈述句中表示说话人的意图、允诺、警告或命令等。答案：shallors now get far less sleep than they ____________．解析：句意：很多医生因为超负荷工作现在睡眠量远比应该的少。should表示“应该”。答案：should(2017·高考重庆卷改编)I’ve ordered some pizza_____________worry about cooking when we get home tired. | 
