Unpopular as white has been in the past, at the moment it is a favourite choice for wedding gown.
这里as是引导让步装从使用半倒装不应该将助动词或情态动词提前吗?还有解析里面beautiful as she is 为什么不是把is提前。
你的句子中的 white 是名词,不是形容词。
这类让步状语从句通常只是提前表语(或状语),而不提前助动词或情态动词。
Unpopular as white has been in the past...
Beautiful as she is…
以上两句的用法,本质上是一致的,都是提前了表语。