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    精英家教网 > 高中英语 > 题目详情
    9．-Is there any chance of my borrowing your ipad？
    -For how long？（　　）----____the end of this week．
    A．SinceB．UntilC．FromD．By

    分析 --我可以借你的ipad吗？
    --多久？
    --直到本周结束．

    解答 答案是B．本题主要考查表示时间的介词辨析．since自从（过去某一时间起）；until在肯定句中表示"动作延续到…结束"；from自从（某一时间）；by 表示"到…时候为止（动作已经发生）"；根据语境判断，how long指段时间，指借用的状态持续多久；用until the end of the week表示"借用的状态持续到周末"，所以答案选择B．

    点评 介词辨析要在掌握各介词的基本用法和固定搭配的基础上结合语境做出符合逻辑、常理的推测．

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