题目内容
15._____30 minutes before each meal,the medicine is very effective against the illness.( )A. | Take | B. | Taking | C. | To take | D. | Taken |
分析 饭前30分钟服药,这种药对于抵抗这种疾病是非常有效果的.
解答 答案:D.
分析句子可知,the medicine is very effective against the illness属于一种结果,前面的非谓语动词理应就是原因,take的逻辑主语就是the medicine,且两者之间为动宾关系,表示被动;故用过去分词作原因状语;故选D.
点评 当分词做状语的时候,如果构成分词的动词与句子的主语构成主动关系,就使用现在分词做状语;当二者构成被动关系,使用过去分词做状语.
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