例3:He’s strange -- he ____ sit for hours without saying anything.
A. shall B. will C. can D. must
分析:will用来谈习惯和特性,尤其是不受时限必然发生的情况。本句意思为“他很怪,能一坐几个小时一句话也不说”。答案为B。
例4:John, look at the time. _______ you play the piano at such a late hour?(2005全国Ⅲ)
A. Must B. Can C. May D. Need
例5:Tom, you _____leave all your clothes on the floor like this!(2005全国II)
A. wouldn’t B. mustn’t C. needn’t D. may not
分析:must用于疑问句,表示责备、抱怨的感情色彩,意思为“偏要,硬要、干嘛”;而mustn’t则表示禁止、不允许,是说话人强有力的劝告。故答案分别为A、B。
例6:You can’t imagine that a well-behaved gentleman _____ be so rude to a lady. (2001上海)
A. might B. need C. should D. would
分析:在某些名词性从句中,should 表示惊异、意外等情绪,常译为“竟然”。答案分别为C。如:It seems unfair that this should happen to me. 真不公平,这件事竟然发生在我身上。
例7:_____it rain tomorrow, the meeting would be put off.
A. Should B. Would C. Could D. Must
分析:在条件状语从句中,should 表示“万一”,即可表示不能实现的假设,又可表示可以实现的假设。该句意思为“万一明天下雨,会议就延期。”答案为A。
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