[W93] For many cities in the world,there is no room to sprea

翻译：对于世界上许多大城市来说,已经没有进一步扩展的空间了,纽约就是这样的一个例子.
此题考查非限制性定语从句.
固定结构：an example of...,意思是“一个.的例子/例证”.
而which代指主句there is no roomto spread out further所表达的情况.在非限制性定语从句中,只有as/which可以代指整个主句.
而如果关系代词做介词的宾语时,经常把该介词和关系代词一起提前至句首.
即：of which New York is an example
= New York is an exapmle of whih
再如：I‘ve never heard of the city,in which you lived last year.
其中：in which you lived last year
= you lived in which last year
= you lived in the city last yea