多样化的句式有利于雅思写作获取高分。本文环球教育(原环球雅思)小编主要告诉大家虚拟语气在雅思写作中的作用，熟练使用虚拟语气可以使雅思作文句式呈现层次性。

　　1.If sb had done sth(坏事), sb would never have done sth(好事).

　　如果某人过去做了某事(坏事)，那么他永远不可能做某事

　　If Hugh Miller, after toiling all day in quarry (采石场), had devoted his evenings to rest and recreation, he would never have become a famous geologist.

　　2.Sb would never have done sth(好事1) , never have done sth (好事2), if sb had done sth (坏事)

　　某人永远不可能做某事， 永远不可能做某事， 如果某人过去做了某件坏事

　　The celebrated mathematician, Edmund Stone, would never have published a mathematical dictionary, never have found the key to science of mathematics, if he had given his spare moments to idleness.

　　3.Had sb done sth(坏事) ， sb would never have done sth (好事)

　　如果某人过去做了某件坏事，而不是去做某件好事，那么他永远不可能做某事(好事)

　　Had the little Scotch lad, Ferguson, allowed the busy brain to go to sleep while he tended sheep on the hillside, instead of calculating the position of the stars by a string of beads, he would never have become a famous astronomer.

　　如果大家对虚拟语气的使用还不太清楚，那么环球教育(原环球雅思)小编建议大家可以咨询我们的雅思写作培训班，进行系统学习和掌握，让你的雅思写作获得高分。