题目内容

10．Please _______ the water when you brush your teeth．（　　）
A．turn downB．turn offC．turn onD．turn up

分析 当你刷牙时，请把水关掉．

解答 答案：B turn on表示"打开"，常指开灯或打开家用电器；turn off表示"关掉"，常指关掉自来水、电灯以及家用电器等；turn up表示"开大，调高"，常指调高（电器等）音量；turn down表示"关小，调低"，常指调低（电器等）音量．根据句子中时间状语"when you brush your teeth当你刷牙时"以及"the water"可知：要把水关掉．故选：B．

点评 考查动词短语 理解句子的意思及动词短语的意思，结合句意和语法来选择正确和答案．平时要多积累词汇是作答这类题型的前提．

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