方位介词复习第一组:over, above和on的用法1) over指在的正上方,表示垂直在上。如: There is a lamp over the desk.2) above指在上方,属于斜上方。如:Raise your arms above your head.3) on指在上面,表示两物体接触。如:There is a cup on the table.第二组:under / below的用法:1) under在下面/正下方:Whats under your desk? 2) below 在斜下方:Her skirt came below her knees.练习:( )1The boat is passing_ the bridge. A. through B. below C. under D. across ( )2Two planes are flying_ the city. A. through B. over , C. on , D, below (