although native to north America,corn has now spread all over the world.此句中although为连词,后应该接一个句子,两个句子主语一致都为corn,可以省略,但是为什么谓语也省略了呢? 后一句的谓语是have spread,前一句是is 谓语不同为什么能省略?
although引导的状语从句, 如果从句主语和主句主语相同, 可以省略主语, 并将谓语动词简化成分词结构。然后如果这个分词结构的动词是be, 可以进一步省略。
Although corn is native to north Amentica, corn has now spread all over the world.
变成 Although being native to north Amentica, corn has now spread all over the world.
再变成Although native to north Amentica, corn has now spread all over the world.
再比如
Although he was busy, he came to the party.
Although being busy, he came to the party.
Although busy, he came to the party. (这个形式比第二句更加自然)
所以这里并没有省略从句的谓语动词, 只是因为是be动词, 所以才省略的。
你说的那种省略形式, 比如这种
I have never been a good student and I will never be a good student.
I have never been and will never be a good student. (现实当中, 通常会用这个说法,并且表达更加强烈)
在这里, 主语是相同的, 所以在and后面省略, 但是动词部分完全不一样, 所以没有省略。
希望解答了你的问题。
追问请问这个省略是只适用于although吗?once当连词的时候也可以这样省吗?