请问：more and more of the substance.这里的more and more 是什么词性?

请问：more and more of the substance.这里的more and more 是什么词性? 关于more and more的用法我看到有的书上写“more and more of the Chinese people...”,而有的书上写“more and more Chinese people...”请问哪种用法是正确的? 请问是bigger and bigger 还是 more and more big, More And More 歌词 More and more beautiful More and more love.. more and more I more and more more and more deep much more and more sb more and more There are a number of more and more people.为什么? Along with the development of…,more and more More and more cars make lots of p____in the city Now more and more people r___ the importance of health MORE AND MORE ATTENTION ()to the protection of our environment more and 请问：More