题目内容

7．It's no use ______ about it．You can't do anything to change it．（　　）
A．worriedB．to worryC．worryingD．worry

分析 为此担心是没有用的．你无法做任何事件来改变它．

解答 答案是C．本题考查动名词做主语的固定句型．It's no using doing sth表示"做…是没有用的"，其中It 是形式主语，真正的主语是动名词；由此判断答案是C．

点评 对于非谓语动词的选择，首先要根据句子的结构判断句中缺少的是谓语动词还是非谓语动词；如果是非谓语动词，在理解非谓语动词的基本用法的基础上再根据句子的结构做出判断．

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