题目内容
5.Teenagers should be cautious about the content on social networking sites,for their tastes and preferences by what they see in the media.( )A. | shape | B. | were shaped | C. | are shaped | D. | have shaped |
分析 青少年应该当心社交网站上的内容,因为他们在媒体上所看到的内容决定了他们的品味和喜好的形成.
解答 答案是C.本题考查一般现在时的被动语态;根据语境,品味和喜好是"被影响"的,故用被动语态,排除A和D;一般现在时表示通常性、规律性、习惯性、真理性的状态或者动作有时间规律发生的事件的一种时间状态.本题表示的是通常会发生的事,故用一般现在时的被动语态,答案是C.
点评 对时态的选择,要在把握时态的基本用法的基础上,根据具体语境和题干中的时间推断时态;同时关注动词的语态,理清不同时态的被动语态的形式以及主语和谓语动词之间的关系,做出合理的判断.
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