5.more and more．．．

“more and more．．”结构常用于表示“越来越……”的含义，表示一个过程的不断增长。

With so many people communicating in English every day，it will become more and more important to have a good knowledge of English．(人教大纲版高一上第11页)

有那么多的人天天用英语沟通，熟练掌握英语会变得越来越重要。

Jane became more and more beautiful．

简变得越来越漂亮了。