1. Some of the native population moved to the inland, mountainous parts of the islands, to Ireland, Scotland and Wales, where they continued speaking their own languages. (定语从句)
2. It is built where two rivers come together. (地点状语从句)
Where the meeting will be held is not known yet. (主语从句)
I don't know where I am mistaken. (宾语从句)
The question is where we can get so much money. (表语从句)
The question where he has gone puzzles us. (同位语从句)
I work in a business where almost everyone is waiting for a great chance.
There are cases where the word“mighty” is used as an adverb. 在一些情况下，mighty一词可用作副词。
三、引导地点状语从句。where引导地点状语从句时，一般修饰句中的动词或动词短语，说明动作发生的地点。where本身在从句中作地点状语, 表达的意思相当于at the place where。如：
After the war, a new school building was put up where there had once been a theatre.
You should make it a rule to leave things where you can find them again.