复杂句子怎么样拆分为简单句子

Environmental pollution is becoming increasing severe with the progress and development of the human society. 此句型为何句型，若拆分成简单句该怎么样拆分！

第一订正一下错误，此句应该是：

Environmental pollution is becoming increasingly severe with the progress and development of the human society.

这句话的意思是:伴随人类社会的进步与进步，环境污染变得日益紧急。

severe是形容词，需要副词修饰。

主语是environmental pollution ；become是系动词，用进行时表达按部就班的过程；severe是表语。with the progress and development of the human society做随着状语。