14．When crossing the street，remember to watch out _____________cars．（　�。�
A．atB．forC．toD．of

分析 過馬路時(shí)，記住要當(dāng)心汽車．

解答 答案是B．本題主要考查介詞辨析． 介詞for表示動(dòng)作的對象，watch out for當(dāng)心…；根據(jù)句意和常識(shí)判斷，過馬路時(shí)要watch out for cars（當(dāng)心小汽車），所以答案選擇B．

點(diǎn)評 介詞辨析要在掌握各介詞的基本用法和固定搭配的基礎(chǔ)上結(jié)合語境做出符合邏輯、常理的推測．

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