英语状语从句特殊引导词怎么区别使用

1 像表时间的the second,every time,the day,the instant,immediately ,区别起来很简单.只要你看见它们的前后都有句子,就是算是连接词了,如：
1 He showed her around the city THE DAY she arrived from London=== he showed her around the city when she arrived that day.
2 She lent me her book IMMEDIATELY she had read it === she lent me her book immediately after she had read it
2 像 seeing that,now that,in that inasmuch as 这样的短语连接词通常都在句首,如
Seeing that Tom was busy doing sth,I left his office and went to the cinema alone.
又如 Now that everyone has arrived,let's begin the meeting.