18．Mum wants to watch the CCTV news．Let’s       the TV．（　�。�
A．turn downB．turn onC．turn off

分析 媽媽想看央視新聞．讓我們打開電視吧！

解答 答案：B．turn down減小，調(diào)低；turn on打開，發(fā)動；turn off關(guān)閉，關(guān)掉．根據(jù)Mum wants to watch the CCTV news，可知媽媽想看央視新聞．所以打開電視．turn on打開，故選B．

點評 本題考查了動詞短語的用法．解答本題時注意正確區(qū)分句意以及所給選項的意思．

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