这里的thing指代“人”吗？

I thought that she had fainted, but she recovered herself by a supreme effort.

Is there no such thing as a gentleman? she gasped.

You do Sir Charles an injustice. He did burn the letter. But sometimes a letter may be legible even when burned. You acknowledge now that you wrote it?

这句Is there no such thing as a gentleman这么剖析和理解？这里的thing指“人”吗？麻烦老师具体剖析一下这里的语法成分和含义。 谢谢！

Is there no such thing as a gentleman? 难道没绅士这种人吗？

这里用thing表示一个人的人品、素质、一种人等。这和先行词为指人的名词，限制性定语从句中作表语的关系代词要用that不可以用who的道理是一样的。