英语中一般都会把to play with fire is dangerous这样的句子改成It is dangerous to play with fire这样的形式,目的是为了避免给人头重脚轻的感觉.it是形式主语,指代的是to play with fire（真正的主语）.
to play with fire is dangerous不是主语从句,是简单的主系表结构的句子.主语从句指的是用一个句子作主语,而to play with fire 只是一个不定式短语.
to play with fire is dangerous是不是没有这样的用法.
4个回答
相关问题
-
Everyone knows that________ is dangerous to play with fire,
-
It's ______（danger) to play with fire.
-
Playing with fire _ be very dangerous
-
连词成句with,it,found,was,we,to,play,dangerous,fire
-
Never ____________ (play) with fire.It‘s very dangerous.
-
we mustn't play with fire.it ()be very dangerous
-
play with fire还是play with the fire
-
play water还是play with water,是不是和play with fire 一样,play与play
-
children ought to play with nothing dangerous（保持句意不变）
-
( )Don't play _ fire.It's every dangerous.