English Grammar - Subject Clause

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that引导主语从句

一般置于句末,偶尔也置于句首

that引导的主语从句置于句首

  1. That the seas are being overfished has been known for years.
  2. That the plates are moving is now beyond dispute.

有时候即使很长很复杂的主语从句,也可以直接置于句首来做主语(并不常见)

  1. That such a conjunction of circumstances might accur again soon, especially considering shrinking US defense budgets and diminishing overseas base access, is problematical at best.

that引导的主语从句置于句末

It+be动词+过去分词+that从句

It+be动词+形容词+that从句

It+be动词+名词短语+that从句

It+不及物动词+that从句

句型 含义 例句
It seems that... 似乎...
It follows that... 因此.../由此可见
It happens that... 碰巧...
It turn out that... 结果证明是...
It comes about that... 结果是...

其他结构

it is/was...that引导的主语从句与作为强调句使用的区别

把强调句的 It is 和 that 丢掉,整个句子还是完整的,而主语从句去掉后句子会出错

  1. It is a pity that our team should lose the game.
    去掉it is...that...后, our team should lose the agme/ a pity 这句会出错,所以是主语从句
  2. It was on a rainy day that Lu Yiping borrowed money from her father.
    去掉it is...that...后,Lu Yiping borrowed money from her father on a rainy day. 这句正确,所以是强调句

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