______ to nuclear radiation, even for a short time, may influence genes in human
题型:不详难度:来源:
______ to nuclear radiation, even for a short time, may influence genes in human bodies.A.Exposed | B.Being exposed | C.To expose | D.Having exposed |
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答案
B |
解析
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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