1Of all the changes that have taken place in English-language newspapers during the past quarter-century, perhaps the most far-reaching has been the inexorable decline in the scope and seriousness of their arts coverage.
主干主语：the most far-reaching (change)；谓语：has been；表语：the inexorable decline
结构句首Of all the changes为介词短语作范围状语，其后that引导定语从句修饰changes；perhaps插入表语气；主干为the most far-reaching has been the decline，in the scope and seriousness为介词短语修饰decline，their arts coverage为of的宾语。
译文在过去二十五年英语报纸发生的种种变化中，影响最为深远的或许就是其文艺报道在范围和严肃性上不可阻挡的衰退。
考点of all... 表示“在所有……中最……”，常引出最高级比较 · inexorable decline in A and B 中in后接并列名词，表衰退的两个方面
2It is difficult to the point of impossibility for the average reader under the age of forty to imagine a time when high-quality arts criticism could be found in most big-city newspapers.
主干形式主语：It；谓语：is；表语：difficult；真正主语：to imagine a time
结构It is adj. to the point of n. 为程度状语结构；for sb. to do为真正主语；when引导定语从句修饰time；could be found为被动，in most...为地点状语。under the age of forty作后置定语修饰reader。
译文对四十岁以下的普通读者来说，几乎无法想象曾有那么一个时代，大多数大城市报纸上都能读到高质量的文艺评论。
考点to the point of impossibility 表“达到不可能的程度” · when引导的定语从句修饰抽象时间名词time
3We are even farther removed from the unfocused newspaper reviews published in England between the turn of the 20th century and the eve of World War II, at a time when newsprint was dirt-cheap and stylish arts criticism was considered an ornament to the publications in which it appeared.
主干主语：We；谓语：are removed；宾语：from the unfocused newspaper reviews
结构even farther removed from为比较级被动结构；published...为过去分词短语作后置定语；between...and...为时间状语；at a time when为同位语，when引导定语从句，内含and并列两个主谓结构；in which为介词+关系代词引导定语从句修饰publications。
译文我们距离二十世纪初至二战前夕英国那些漫无焦点的报纸评论更加遥远——那时新闻纸便宜得不值钱，而风格雅致的文艺评论被视为所刊报纸的点缀。
考点be removed from 表“远离、不同于” · 介词+which引导定语从句，which指代publications
4To read such books today is to marvel at the fact that their learned contents were once deemed suitable for publication in general-circulation dailies.
主干主语：To read such books today；谓语：is；表语：to marvel at the fact
结构不定式短语作主语，is后接不定式作表语，形成A is to B对称结构；that引导同位语从句解释fact；were deemed suitable为被动+形容词补足语；for publication in...为目的状语。
译文如今再读这些书，会惊叹于一个事实：它们那些博学的内容竟一度被认为适合刊登在面向大众发行的日报上。
考点不定式作主语+不定式作表语的对称结构 · deem sb./sth. suitable for 后接名词或动名词
5Journalistic tastes had changed long before his death, and postmodern readers have little use for the richly upholstered Vicwardian prose in which he specialized.
主干主语1：Journalistic tastes；谓语1：had changed；主语2：postmodern readers；谓语2：have little use
结构and连接两个并列分句；long before his death为时间状语；have little use for为固定搭配；richly upholstered Vicwardian prose为名词短语，in which引导定语从句修饰prose，he specialized为从句主干。
译文早在他去世之前，新闻品味就已改变，后现代读者对他所擅长的那种装饰华丽的维多利亚-爱德华风格散文几乎毫无兴趣。
考点have little use for 表“对……没什么用/不感兴趣” · 介词in + which 引导定语从句，which指代prose