He made up his mind to devote his life the river polluted.A．to prevent; to beB．to prevent; from beingC．to preventing; to beD．to preventing; from being 题目和参考答案——青夏教育精英家教网—

He made up his mind to devote his life ______ the river ______ polluted.

A．to prevent; to be	B．to prevent; from being
C．to preventing; to be	D．to preventing; from being

解析试题分析：句意：为了过上幸福的生活，他下定决心一生致力于防止污染。第一空的to，用来构成固定搭配devote ... to ... 把……奉献给……此处to是介词。－－所以prevent要用ing形式，第二空to live 不定式作目的状语，注意：此处不是prevent... (from) doing sth 阻止……作某事。选D。
考点：考查动名词和不定式

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