题目内容
1.-Do you know who invented the computer?-No.I only know it ______ in 1971.( )| A. | invents | B. | invented | C. | is invented | D. | was invented |
分析 ---你知道谁发明了电脑?
---不知道,我只知道是1971年发明的.
解答 答案:D.
结合句意是说的过去的事情用一般过去时,主语it提到the computer是动词invent的承受者,构成被动关系,故用一般过去时的被动语态was/were+过去分词,主语三单,故was,故答案是D.
点评 动语态(passive voice)是动词的一种形式,用以说明主语与谓语动词之间的关系.英语的语态共有两种:主动语态和被动语态.主动语态表示主语是动作的执行者,被动语态表示主语是动作的承受者.被动语态是动词的一种特殊形式,一般来说,只有需要动作对象的及物动词才有被动语态.汉语往往用"被"、"受"、"给"等被动词来表示被动意义.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.
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