it做形式主语的句子
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it 作形式主语主语从句有时为了考虑句子平衡,通常在主语从句处使用形式主语it,而将真正的主语从句移至句末。这分四种情况:(1) 对于以连词that引导的主语从句,通常用形式主语it替代主语从句:(2) 对于以连接代词(副词)引导的主语从句,可以使用形式主语代主语从句,也可直接在句首使用主语从句:(3) 对关系代词型what引导的主语从句,通常直接将主语从句放在句首。如:(4) 如果句子是疑问句,则必须用带形式主语it的结构:
1-1○连词that引导的主语从句,通常用形式主语it替代主语从句It is +名词+从句
It is a fact that… 事实是……;It is good news that … 是好消息;It is a question that … 是个问题;It is common knowledge that … 是常识类似的名词还有:a pity;a wonder;a good thing; no wonder; surprise等it is no surprise 毫不惊奇地例如
It is a mystery to me how it all happened.
这是怎么发生的,对我来说就是一个谜。It is common knowledge that the whale is not a fish.鲸鱼不是鱼,这是一个常识。It is no surprise that China is making progress on such fronts: the manufacture of large passenger aircraft and high-speed trains, research in yeast and aerospace.
中国在很多尖端领域,如大飞机制造,高铁、干细胞、
航天航空研究等领域取得飞速发展一点都不惊讶。
It is +形容词+从句
1-1○连词that引导的主语从句,通常用形式主语it替代主语从句It is +名词+从句
It is a fact that… 事实是……;It is good news that … 是好消息;It is a question that … 是个问题;It is common knowledge that … 是常识类似的名词还有:a pity;a wonder;a good thing; no wonder; surprise等it is no surprise 毫不惊奇地例如
It is a mystery to me how it all happened.
这是怎么发生的,对我来说就是一个谜。It is common knowledge that the whale is not a fish.鲸鱼不是鱼,这是一个常识。It is no surprise that China is making progress on such fronts: the manufacture of large passenger aircraft and high-speed trains, research in yeast and aerospace.
中国在很多尖端领域,如大飞机制造,高铁、干细胞、
航天航空研究等领域取得飞速发展一点都不惊讶。
It is +形容词+从句
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