next to表示“紧靠……的旁边”
例：The new building next to the bookstore is a cinema.书店旁边的那幢新楼是一家电影院.
There is a café next to the barber's.理发店隔壁是一家咖啡馆.
near表示“在……附近”,表示的距离比by和beside稍远些,也时常换用
例：There is a theatre near his home.他家附近有一家剧院.
Don't play near the road.不要在马路附近玩.
There is a post office near No.1 Middle School.第一中学附近有一所邮局.
beside表示“在……旁边”
The hotel is beside the river.那家饭店在河边.
Come and sit beside me.过来,坐在我边上.