He helped popularize the idea that some diseases not previously thought to have a bacterial cause were actually infections,which around much controvery when it was first suggested.the idea 后面的同位语从句不太明白 怎么只有not 没有be动词呢? 英语
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【答案】 我是这么理解的 从not一直到cause是一部分定语来修饰some diseases
the idea后面这个同位语从句真正的谓语动词是were 追问: 你的意思是some diseases which are not previously thought to have... 省略了which are 是吧?? 追答: 不对 我不是那意思 diseases 后不是定语从句 那些只是定语 定语从句中不会出现省略主语和谓语的 追问: 不是 分词作定语 么?? 追答: 我告诉你我的想法 我不确定对不对 我觉得是过去分词作定语 thought 是过去分词作定语