Except did you really have to mention children's books?这一句怎样

　　Yeah that's right. Except did you really have to mention children's books? I just like them because my mom used to read to me all the time.
放在语境中分析 except 是不能单独放在句首的.尤其是介词的时候
这儿因为是口语,不要应该把它单独拿出来,这句话是和that‘s right 有关系的（虽然是句号）

意思是 ： 的确是这样,但是你为什么非要提到小人书呢?
这两个词都表示“除…外”.but和except都表示从整体中除去部分,但在but的句子里,着重在整体; 在用except的句子里,着重在除去的部分.