The traffic rule says young children under the age of four and ____ less than 40 pounds must be...

The traffic rule says young children under the age of four and ____ less than 40 pounds must be in a child safety seat. A.being weighed B.to weigh C.weighing D.weighed

C


试题分析:考查分词做定语。本题中的动词weigh(重…)与前面的名词young children构成主动关系,故使用现在分词短语在句中做定语。句意:交通规则说四岁以下和体重不到40磅的儿童一定要坐儿童安全座位。故C正确。
点评:当分词做定语的时候,如果构成分词的动词与名词构成主动关系,就使用现在分词做定语;当二者构成被动关系,使用过去分词做定语。单独的一个分词做定语要放在名词的前面,分词短语做定语要放在分词的后面。
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