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    精英家教网 > 高中英语 > 题目详情
    ______ to nuclear radiation, even for a short time, may influence genes in human bodies.
    A．ExposedB．Being exposedC．To exposeD．Having exposed
    B

    试题分析：考查动名词做主语，分析句子成分发现even for a short time, 是插入语，may influence是谓语，前面的部分应该是主语，be exposed to“暴露于”，要用动名词Being exposed to，句意是：暴露于核辐射中甚至很短时间都会影响人体的基因。选B。
    点评：做题时要会发现句子结构，如果有插入语可以先忽略，判断所填部分是什么成分，还有要注意是主动还是被动。
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