一. 教学内容：
Unit 3 复习
（一）单词，词组，句型复习
介词 prep.
above 在……上方 There are two pictures of movie stars above the bed.
on 在……之上 There are lots of books on it.
over 在……正上方 There is a bridge over the river.
under 在……之下 My school bag is under the desk.
in 在……里面 What’s in the kitchen?
opposite 对面的 There is a bookshop opposite the post office.
