注意: 这个句型中的动名词总是用主动形式表示被动意义. 类似的句型还有:worth while +动名词(也可用动词不定式)=worth the time spent in doing it It isn’t worth while doing (or: to do )that . 做那件事不合算 2.cannot help +动名词=be unable to refrain from ...