题目内容
11.Paper money ____for over a thousand years( )A. | used | B. | has been used | C. | have been used | D. | is using |
分析 纸币被用了超过一千年了.
解答 答案是B.考查被动语态,paper money与动词use之间是被动关系"被用",根据时间状语for over a thousand years,有一千多年了,现在实际情况依然用纸币,看见用现在成时,多以答案选B.
点评 被动语态由"助动词be+及物动词的过去分词"构成.被动语态的时态变化只改变be的形式,过去分词部分不变.疑问式和否定式的变化也如此.掌握各种时态的被动语态是解题的关键.
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