it强调句型和it作形式主语的主语从句的区别:
强调句的结构 it is/was+被强调部分+that/who+句子其余部分,其中it is/was和that/who不作任何指代且在结构上不起任何作用,个人判断方法是将这两部分去掉并不影响原句表达,例如 (it is) you (who) saved me;
而it作形式主语的主语从句则不一样,例:It is a pity that you missed the exciting football match。 这里it 作形式主语,指代that引导的主语从句,正序是that you missed the exciting football match is a pity,可以看到这里的it is + that不能直接移去,is是充当谓语的
At the time, minorities constituted seventeen percent of the nation's population, but only four percent of the nation's self-employed. This ownership gap was
The same literature offers similarly conflicting views of the efficiency of nonprofit hospitals from a social welfare perspective.