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    7．People all think it strange that the boy should tell what's written on the paper in another room without looking at it．It really ________ explanation．（　　）
    A．preventsB．challengesC．interruptsD．confuses

    分析 人们都认为这个男孩不看报纸能讲出内容来，这让人们感觉奇怪，这真的难以解释．

    解答 答案B．
    A项"阻止"；C项"打断"；D项"困惑"；B项"挑战；质疑"；动词短语"challenge explanation  对解释进行挑战 即很难提供确切的解释"，根据句意"人们都认为这个男孩不看报纸能讲出内容来，这让人们感觉奇怪，这真的难以解释．可知，B项符合语境，故选B．

    点评 本题考查动词辨析．解答此类题目首先要读懂句意，理解每个选项动词的意思，然后根据上下文语境锁定合适的动词．平时要加强动词词汇量的积累．

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