题目内容
4.--When did Tom come to your art class?-He here for weeks.( )
A. | came | B. | has come | C. | has been |
分析 -汤姆什么时候来上你的艺术课?
-他已经上了几周了.
解答 答案:C 根据for weeks可知用现在完成时,现在完成时态的结构为have/has+动词的过去分词,排除A;而come是瞬间性动词,不能持续一段时间,排除B;所以要用延续性动词be,它后面可以跟表示一段时间的状语,故选C.
点评 判断动词的时态,要通过所给的时间状语、提示词或语境去判断动词存在的状态.本题注意短暂性动词和延续性动词的区别.
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