按道理來說 一般+to do的形容詞比較多 大多都是做什么很怎么樣的意思
但有一些少數(shù)固定搭配的后面+doing
It is no use doing sth.
It is a waste of time doing sth.
It is useless doing sth.
It is no good doing sth.
不過像nice 兩種都可
it's nice doing sth.
做了某件事真好.(事情已經(jīng)做完了)
It's nice to do sth.
做某事真好(沒有做,即將要做)
例:
It's nice helping you.幫助你感覺真不錯(已經(jīng)幫助了)
It's nice to do the job.干這份工作會很不錯的(即將開始干)
這也是to do 跟doing 的一種區(qū)別 不僅僅只是it is +adj.這個結(jié)構(gòu)中.