例18　They have taken note of the preceding hundred years from 1650 to 1750, when England was still a completely agricultural country, a period of abundance and prosperity.

【结构分析】主干是They have taken note of the preceding hundred years, from 1650 to 1750是介词短语，修饰前面名词，when England was still a completely agricultural country是个定语从句修饰前面的名词，后面是同位语a period of abundance and prosperity。

【亮点回放】此句话的亮点是when引导的时间定语从句，修饰前面的时间，很容易误解为状语从句。

【核心词汇】

take note of　观察

preceding hundred years　先前的一百年

agricultural country　农业国家

abundance and prosperity　繁荣富强

【参考译文】他们已经观察了1650到1750先前的这一百年，那个时候英格兰仍然是农业国家，那个时候英格兰很繁荣富强。