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    10．We        have taken so many warm clothes now that the weather in Sanya is hot now．（　　）
    A．may notB．needn'tC．can'tD．mustn't

    分析 既然在三亚现在天气热，我们没有必要带那么多暖和的衣服．

    解答 答案是B．本题考查情态动词辨析．may not也许不；needn't 不必；can't不能；不可能； mustn't禁止；根据下文"the weather in Sanya is hot now现在三亚的天气热"判断"不必"带那么多暖和的衣服，所以答案选择B．

    点评 要在正确理解情态动词的基本含义的基础上，整体理解语境中的情感态度，做出合理的判断．

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