题目内容
11.The cat often runs up the tree.(用now改写句子)The catis running up the tree now.
分析 --这只猫经常在树上跑.
--这只猫正在树上跑.
解答 答案:is running.考查现在进行时态.根据now现在,可知应该用现在进行时态,结构是is/am/are+动词的现在分词.主语是cat单数,因此用be动词单数is.run的现在分词是running.答案是is running.
点评 现在进行时态表示正在进行的动作,结构是is/am/are+动词的现在分词.be动词的单复数要与主语的单复数保持一致,注意动词现在分词的变法,结合语境完成试题.
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