问一个英文句式The cave might never have been discovered had not the entrance been spotted by the distinguished Frech pot-holer,Berger.其中的 had not 是用来作神马的?这是什么句式呢,看不懂
问题描述：
问一个英文句式
The cave might never have been discovered had not the entrance been spotted by the distinguished Frech pot-holer,Berger.
其中的 had not 是用来作神马的?这是什么句式呢,看不懂
答
你把might never have been discovered 去掉，这句子就好理解了
答
这是新概念三上的文章，might 前时一个宾语从句省略that,真正的主语是the cave
答
might never have been diacovered 是前面The cave 的定语.意思是这可能还没有被发现的洞穴
The cave(that/which) might never have been discovered 中省了THAT 或which.
The cave might never have been discovered 是主语 had not 谓语 entrance been spotted by the distinguished Frech pot-holer,Berger.宾语（ been spotted by the distinguished Frech pot-holer,Berger是entrance 定语）
答
虚拟语气的倒置句式。。。大意是说如果那个洞口没有被berger发现的话可能这个洞永远都不会被发现