关系副词引导的定语从句
1、when时间状语
注意:It/Ihis/That + be + the first/ second/ last time that… 只能用that,that可以省略,从句用相应的完成时。
2、where 地点状语
注意:当先行词为模糊的地点时,如point. Situation, case, position, stage, scene, spot, activity, family, job等名词时用where.
3、why 原因状语 先行词为reason。