1yet when one looks at the photographs of the gardens created by the homeless, it strikes one that, for all their diversity of styles, these gardens speak of various other fundamental urges, beyond that of decoration and creative expression.
主干主语：it（形式主语）；谓语：strikes；宾语：one；真正主语：that these gardens speak of various other fundamental urges
结构yet连接前文转折。when引导时间状语从句。it strikes one that为形式主语句型，that从句为真正主语。for all their diversity of styles为让步状语（相当于although），beyond that of...为介词短语修饰urges，that指代urge。created by the homeless为过去分词短语作后置定语修饰gardens。
译文然而，当人们看到那些无家可归者所创建的花园的照片时，就会感到：尽管这些花园风格多样，它们却诉说着装饰和创造性表达之外的其他种种基本需求。
考点for all + 名词 = although的让步用法 · it strikes one that... 形式主语+真正主语从句
2A sacred place of peace, however crude it may be, is a distinctly human need, as opposed to shelter, which is a distinctly animal need.
主干主语：A sacred place of peace；谓语：is；表语：a distinctly human need
结构however crude it may be为让步状语从句（however+形容词+主语+谓语的倒装结构）。as opposed to shelter为介词短语作状语，对比human need与animal need。which is a distinctly animal need为非限制性定语从句修饰shelter。
译文一块神圣的宁静之地，无论多么简陋，都是人类特有的需求，这与作为动物特有需求的栖身之所截然不同。
考点however+adj+主语+may be 让步倒装 · as opposed to 表示对比
3The gardens of the homeless, which are in effect homeless gardens, introduce form into an urban environment where it either didn't exist or was not discernible as such.
主干主语：The gardens of the homeless；谓语：introduce；宾语：form
结构which are in effect homeless gardens为非限制性定语从句，补充说明主语。into an urban environment为地点状语。where引导定语从句修饰environment，从句中either...or...连接两个并列谓语didn't exist和was not discernible，it指代form，as such意为“本身、如是”。
译文无家可归者的花园，实际上是无家之园，它们将形式引入了城市环境——在那里这种形式要么原本不存在，要么无法被辨认为形式。
考点in effect 实际上 · where定语从句中either...or并列结构
4It is this implicit or explicit reference to nature that fully justifies the use of the word garden, though in a “liberated” sense, to describe these synthetic constructions.
主干强调句：It is this implicit or explicit reference to nature that fully justifies the use of the word garden
结构It is...that...强调句，强调主语this implicit or explicit reference to nature。though in a “liberated” sense为让步插入语。to describe these synthetic constructions为不定式作目的状语，修饰justifies the use。
译文正是这种对自然或隐或显的参照，充分证明了用“花园”一词（尽管是在“解放了的”意义上）来描述这些人造构造是合理的。
考点It is...that...强调句型 · though引导的让步插入成分