where的作用   来源：网页搜索

最佳答案 - 由投票者2008-10-29 21:12:04选出

where
adv.
At or in what place: Where is the telephone?
In what situation or position: Where would we be without your help?
From what place or source: Where did you get this idea?
To what place; toward what end: Where is this argument leading?

conj.
At what or which place: She moved to the city, where jobs are available.

In a place in which: He lives where the climate is mild.
In any place or situation in which; wherever: Where there's smoke, there's fire.
To a place in which: We should go where it is quieter.
To a place or situation in which: They will go where they are happy.

To a place in which: We should go where it is quieter.
To a place or situation in which: They will go where they are happy.

n.
The place or occasion: We know the when but not the where of it.
What place, source, or cause: Where are you from?