题目内容
3.According to a news report,listening to loud music with mp3players ______ caused hearing loss in some teenagers.( )A. | has | B. | have | C. | is | D. | are |
分析 根据新报道,用MP3播放器听喧闹的音乐已经对一些年轻人造成了听觉损失.
解答 答案是A.考查主谓一致.句意是:根据新报道,用MP3播放器听喧闹的音乐已经对一些年轻人造成了听觉损失.句子主语是动名词短语listening to loud music with mp3players,谓语要用单数形式,排除B和D.根据空格后面的caused,可知句子是现在完成时态,所以用单数形式的助动词has.故选A.
点评 解答此类题目首先掌握句意,然后分析句子主谓成分,根据相关语法选择正确的答案.

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