单选题Hemadeuphismindtodevotehislife__

单选题 He made up his mind to devote his life____________the river____________pollutedA.to prevent, to beB.to prevent, from beingC.to preventing, to beD.to preventing, from being

D解析考查devote和prevent的用法。Devoteto致力于……，把……专注于，To是介词，后面接名词或者动名词。Prevent……from，From为介词，后面接名词或者动名词。阻止，预防某人干某事。句意：他决定把他的医生致力于防止河流免于污染的事业中。故选D。

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