你们的教室每天都打扫吗?Is your classroom cleaned every day?．题目和参考答案——青夏教育精英家教网—

10．你们的教室每天都打扫吗？Is your classroom cleaned every day？．

分析 Is your classroom cleaned every day？

解答答案：Is your classroom cleaned every day？
表达的是经常性的动作用一般现在时，主语classroom是动词clean的承受者，构成被动关系，故用一般现在时的被动语态be+过去分词，主语your classroom 三单，故is，提到句首引起一般疑问句，故答案是Is your classroom cleaned every day？

点评被动语态由"助动词be+及物动词的过去分词"构成．被动语态的时态变化只改变be的形式，过去分词部分不变．疑问式和否定式的变化也如此．

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