not popular as pop music is怎么理解it is not popular as pop music is.等于it is not as popular as pop music is.

一样，前句可以表示为it is not popular as pop music
后句一般不这么表示

它们是一样的

你写的第二句话有问题。应该是it is not as popular as pop music.
但如果你的原句没有问题的话，应该不是这个意思，而是说，“流行音乐很受欢迎，而这个不是”没有两者的比较或者说比较的意味不浓
it is not popular as pop music．
=it is not as popular as pop music.
才是它不像流行音乐那么popular...
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不好意思,上面说的有点问题...从新来说
1)it is not popular as pop music is.中AS=WHILE,意思是,pop music是popular的,而it不够popular.
而2)it is not as popular as pop music(注意没有is).
是它不像流行音乐那么popular...
也就是说第一句话里as引导从句,而第二句话里A be not as..as B. 是个固定句型,意为"A不如B..."
我之前说的it is not popular as pop music． 和你写的第二句话it is not as popular as pop music is. 都是错误的,不可以这么说...

是的

没有流行音乐/通俗音乐流行
等于it is not as popular as pop music is.的意思

第一句应该没有结尾的“is”
意思是：它没有流行音乐流行，
等于it is not as popular as pop music .没有is