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    精英家教网 > 高中英语 > 题目详情
    14．If the wound    become swollen，do not hesitate to call me．（　　）
    A．shallB．mustC．shouldD．would

    分析 伤口万一肿胀的话，一定要立即给我打电话．

    解答 答案C．
    shall用于第二、三人称的肯定句中表示允诺、警告等强烈的语气；must"必须，一定"；should"（表示语气较强的假设）万一，竟然"；would指"过去总是，过去习惯于"．在本题should表可能性，是"万一"之意，故用should．故选答案C．

    点评 本题考查情态动词的用法．在掌握情态动词的基本含义的时候，还要掌握一些情态动词的特殊含义．如：must表示与说话人愿望相反及不耐烦，含义为偏要、硬要．would+动词原形表示过去的习惯或某种倾向．shall用于第二人称和第三人称表示建议，允诺，命令，威胁等．should表示惊讶时，意思是"竟然"，should还有"万一、竟然"之意．

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