1. at表示地点:
(1)用于指较小的地方。如: I shall wait for you at the station.
(2)用于门牌号码前。如: He lives at 115 Zhongshan Road.
2. in表示地点:
(1)用于指较大的地方。如: He lives in Shanghai.
(2)虽然是很小的地方,如果说话人住在那里,也可用in。商店、学校、机关等,若看作一个地点(point)用at,若看作一个场所(place)用in。
如:
I met him at the post-office.
I’m now working in the post-office.
3. on表示地点,一般指与面或线接触,意为“在……上;在……旁”。
如:
The picture was hanging on the wall.
New York is on the
Hudson River.