定语从句中什么叫做主格做宾格

)是啥意思？英语中的(主格和宾格？

人称代词的用法(1) 人称代词主格在句中作主语：The light is bad here。 I can’t see clearly。 这儿的光线不好，我看不清。She hesitated a moment, and then sat down beside me。 她犹豫了一会儿，然后在我身边坐下来。We should keep calm even we are in danger。 即使在危急时刻我们也要保持冷静。(2) 人称代词宾格在句中作宾语和表语：There was nobody to tell him, to hint him, to give him at least a ...全部

  人称代词的用法(1) 人称代词主格在句中作主语：The light is bad here。 I can’t see clearly。 这儿的光线不好，我看不清。She hesitated a moment, and then sat down beside me。
  她犹豫了一会儿，然后在我身边坐下来。We should keep calm even we are in danger。 即使在危急时刻我们也要保持冷静。(2) 人称代词宾格在句中作宾语和表语：There was nobody to tell him, to hint him, to give him at least a word of advice。
  没有人告诉他，或暗示他，或起码给他一句忠告。(宾语)Are you for it or against it? 你是赞成还是反对？(宾语)Oh, it’s you。 啊，是你呀。(表语)If I were her, I would take the advice。
   我要是她就接受这个建议。(表语)。收起