肯定是有一定的夸张性成分的。因为毕竟艺术来源于生活且高于生活。《雾都孤儿》 主要讽刺的就是那个时期英国资产阶级的腐败和社会黑暗，所以要讽刺就一定有夸张性。但这个夸张也一定是有现实依据的，来源于现实社会。毕竟这本书是现实主义的作品。

雾都孤儿的简介

One of Dickens most enduringly popular stories is Oliver Twist, an early work published 1837-8. Like many of his later novels, its central theme is the hardship faced by the dispossessed and those of the outside of tolite society. Oliver himself is born in a workhouse and treated cruelly there as was the norm at the time for pauper children, in particular by Bumble, a parish council official or eadle The story follows Oliver as he escapes the workhouse and runs away to London. Here he receives an education in villainy from the criminal gang of Fagin that includes the brutal thief Bill Sikes, the famous artful Dodger and Nancy, Bill whore. Oliver is rescued by the intervention of a benefactor - Mr Brownlow - but the mysterious Monks gets the gang to kidnap the boy again. Nancy intervenes but is murdered viciously by Sikes after she has showed some redeeming qualities and has discovered Monk sinister intention. The story closes happily and with justice for Bumble and the cruel Monks who has hidden the truth of Oliver parentage out of malice. Accusations were made that the book glamorised crime (like the ewgate Group of the period) but Dickens wisely disassociated himself from criminal romances. His achievement was in fact in presenting the underworld and problems of poverty to the well-off in a way rarely attempted previously.