时间状语从句与定语从句的区别

题目

时间状语从句与定语从句的区别
It was seven o'clock when we reached the station.
这个句子是时间状语从句还是定语从句．那It was at seven o'clock when we reached the station.这个句子对吗?如果对是什么从句?
It was seven o'clock when we reached the station.这个句子是时间状语从句还是定语从句?为什么？如何区分时间状语从句或地点状语从句与关系副词引导的定语从句?it is ...when 可以是强调句吗?我怎么记得when不可引导强掉句啊?第二个句子是时间状语从句吗?为什么?

答案

强调句的句型是：It is (was) 被强调部分+ that (who) + 句子其他部分第一句是对的,后面一句是错的.It was seven o'clock when we reached the station.（状语从句）=It was "at" seven o'clock "that" we reached t...