题目内容
4.Listen!There must be someoneknocking(knock) at the door.分析 听!一定有人在敲门.
解答 答案:knocking.
根据Listen!There must be someone--(knock) at the door.可知句意为:听!一定有人在敲门.listen一词说明是此刻正在发生的动作,因此应用现在分词形式做定语修饰主语someone.故填knocking.
点评 考查单词填空.准确的翻译句意及分析句子结构、时态、固定搭配等是关键,然后再用合适的形式完成句子.
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