Students have to take part in the exam held by the city有什么语法

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Students have to take part in the exam held by the city有什么语法
1个回答 分类:英语 2014-12-01

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Students (主语) have to (不得不,情态动词)take part in(动词短语,做谓语) the exam (宾语) held (本句话的第二个谓语动词,用非谓语形式—过去分词,表示被动,因为考试是被举行的,做定语)by the city(引出是谁举行考试的)
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再问: held 是被动形式,可以省略be吗
再答: 是被动,因为是非谓语动词嘛。held直接就表示被动。有be就错误了,有be的话就出现俩个谓语动词了···· 你如果还不理解就分解下句子 Students have to take part in the exam 这样一句话已经结束了 The exam is held by the city. 合并成定语从句Students have to take part in the exam which is held by the city. 这样的句子也可以分解成你所提问的句子
 
 
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