题目内容
15. while you are crossing the street.( )A. | Look out cars | B. | Look out of cars | ||
C. | Watch out of cars | D. | Watch out for cars |
分析 当你过马路的时候,当心车子.
解答 答案D.考查祈使句.祈使句没有主语,以动词原形开头.look out 小心,为不及物词组,后面不能直接接宾语.表示"当心某事",用look out for或watch out for.故选D.
点评 考查动词词组时,要留意词组是及物还是不及物.
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