虚拟语气的几种特殊用法省掉if的条件从句结构：Had you asked me, I would have told you. (=If you had asked me,)2.有时虚拟条件不用条件从句而用不定式、分词、介词、名词、连接词或定语从句来表示，如：A true friend would not do such a thing.(=If he were a true friend, he.)(=If there were no water,)(=If you hadnt helped me,)例句：Without your advice, our meeting wouldnt have been so successfully. 过去（=可转换为：If there hadnt been your advice, we ）Your notes are almost illegible (难以辨认的). Notes typed out would be a lot easier to read. 将来(
