在雅思真题里,看到WHICH IS WHEN这样的从句用法,原句是
XXXX,KNOWN AS THE NEOLITHIC PERIOD,WHICH IS WHEN A TOTAL FARMING ECONOMY WAS INTRODUCED IN IRELAND.
请问这里为什么要用WHICH IS WHEN这样的格式?直接有WHICH,当定语从句不行吗?或者直接用WHEN从句?
谢谢。
请问为什么不直接用WHEN去引导?
追答直接用when 的话, 那就是一个时间状语从句了,when a total farming economy was introduced in Ireland“当农耕经济被引进荷兰时”, 原文要表达的意思是:众所周知的新石器时代,农耕经济被引进荷兰的时代,