IT句型知识梳理

下图讲述了英语语法中it有关的各种句型结构，包括IT作形式主语、IT作先行主语、在分裂句中作形式主语、非指代性IT用于某些习语中作形式宾语、非指代性IT作先行宾语等。

IT句型 非指代性it作形式主语 或形式宾语的句式

• it作形式主语
  • it表时间，日期 What date is it? It's December. It is six years since he left.
  • it表天气，温度 It's stormy out at sea. It's full moon tonight.
  • it表距离 It's not far to the nearest village.
  • it表示笼统情况 It's fared well with him. 一切顺利 It's awful.
• it作先行主语/形式主语
  • 句子的实义主语为某些非限定分句或其他名词性分句 通常把实义主语后移，代之以先行it作形式主语
  • It's nice to be with you. It's crazy her going off like that.
• 在it seems/appears/looks /happens+ that分句中
  • It seems that no one has any objection.
  • It appears that he had a taste for music.
  • It turns out that he was never there.
• 在it depends，it's time 的句式中
  • It depends how you tackle the problem.
  • It's time to start. It's time that we were leaving.
• 在分裂句中作形式主语
  • It was my aunt who took Peter to London, not my mother.
  • It was Peter that my aunt took to London, not Lucy.
• 非指代性it作先行宾语
  • I find it difficult to talk to you.
  • I thought it strange that she had not written.
  • I think it best that you should stay here.
• 非指代性it用于某些习语中 作形式宾语
  • You may take it from me. 相信我的话
  • Got it while you are young. 拼命干
  • You can't get away with it. 逍遥法外