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    精英家教网 > 高中英语 > 题目详情
    11．One of the basic principles of wildlife protection involves _______ adequate natural food and shelter to maintain populations of each species in a given environment．（　　）
    A．providedB．providingC．to provideD．provide

    分析 野生动物保护的其中一条基本准则涉及为各种生物提供充分的自然食物和庇护．

    解答 答案：B   involve没有加to do的用法，最常用的是：involve sb．in doing sth．将某人卷入某事，be involved in doing sth．被卷入某事，involve （doing） sth．涉及（做）某事
    involve后面要跟名词性短语，这里面providing是动名词作involve的宾语． 故选B．

    点评 了解句中关键动词的用法，可以帮助我们更准确地分析所用的动词的适当形式．

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