题目内容：

There is no essential difference between the two drafts.
为什么有There is

优质解答

there be 句型表示 某种东西的存在状况
当说…存在 或不存在可用
此处no表示否定意义 否定了difference的存在
between the two drafts是当句子的状语成分
如果没有there is
no essential difference between the two drafts 这个句子就没有没有定语
no essential difference is between the two drafts.就可以了