In fact, New York‘s municipal water for more than a century was called the champagne of tap water and until recently considered among the best in the world in terms of both taste and purity. (06.12 Passage 1)

　　分析主干：New York’s municipal water was called the champagne and considered the best

　　本句是复合谓语句，由and 并列连接两个谓语动词。the champagne 是主语补足语，in terms of...表示“从......角度而言”。

　　译文：实际上，纽约市的自来水曾有100 多年被人们称为“自来水中的香槟”，并且从味道和纯度来看，直到最近还被认为是世界上最好的用水之一。