高手请进, do me a favour, please!

We are so familiar with the fact that man ages , that people have for years assume that the process of losing vigor with time , of becoming more likely to die the older we get, as something self-evident , like the cooling of a hot kettle or the ‘wearing-out’ of a pair of shoes

请各位帮忙,帮我整理一下这句话的句子结构,主谓宾分别是怎样的?