343 作主语的名词从句

 

A 以名词从句作主语的句子常常由it开头(参见第67D):

It is disappointing that Tom cant come

汤姆不能来,真扫兴。(that Tom cant come是主语。)

B 常见的结构是itbeseem+形容词+名词从句(参见第26节与第27节):

Its splendid that you passed your exam

你通过考试了,真棒。

Its strange that there are no lights on

真奇怪,没有一盏灯是开着的。

有些形容词需要或可以与thatshould连用(参见第236节):

It is essential that everybody knowsshould know what to do

重要的是,每个人都应知道该做什么。

C 另一种可代用的结构是itbeseema+名词+名词从句。

下列名词均可用于这种结构:mercymiraclenuisancepityshamereliefwonder。也可以使用a good thing

Its a great pitythatthey didnt get married

他们没能结婚,真是令人惋惜。

Its a wonderthatyou werent killed

你没死掉真是个奇迹。

Its a good thingthatyou were insured

你保了险,这可是件好事。