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    精英家教网 > 高中英语 > 题目详情
    20．He was admitted to our school two years ago，a top school in our hometown，_____ he has been crazy about reading electronic novels，killing time．（　　）
    A．after thatB．since thatC．after whenD．since when

    分析 两年前他被我们学校--我们家乡的一所重点学校录取了，从此以后，他一直沉迷于看电子小说来消磨时光．

    解答 答案选D
    "…he has been crazy about reading electronic novels，killing time"是非限定性定语从句，先行词是two years ago，所以要用关系副词when代指two years ago这一时间点；since+时间点，用于现在完成时态，故选D．

    点评 本句考查的是非限定性的定语从句，主句与从句通常用逗号隔开．句中"a top school in our hometown"作our school 的同位语．two years ago是先行词，在从句中与作since一起作时间状语，从句使用现在完成时．

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