题目内容
15.The program started half an hour ago.(同义句转换)The programhas been on for half an hour.
分析 --这个节目半小时前就开始了.
--这个节目已经持续半个小时了.
解答 答案:has been on.考查同义句."这个节目半小时前就开始了",可以表达为"这个节目已经持续半个小时了".for+段时间,通常用于现在完成时态.结构是have/has+动词的过去分词.主语是program单数,因此用助动词has,start是非延续性动词,现在完成时态中要变为相应的延续性动作,用has been on已经上演.答案是has been on.
点评 同义句转换最基本的是要保持原意不变,在理解语境的基础上,抓住关键单词或词组,运用相同词意的单词或词组完成试题.
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