accelerate一問

with the pace of life gradually accelerated是

with the pace of life (which/that is) gradually accelerated的省略

故accelerated是p.p.做為形容詞(adj.)用，不是過去式

看這裡就知道為什麼了。

The sentence actually looks :-
with the pace of life(gradually accelerated)
where "accelerated" means --ed(=the past participle)
as verbal adjective qualifies "pace of life"
eg:-the accelerated life...