Section B (1a-1e)任务 : 把苹果放到合适的位置 ( 可重复放置 )1
A book is the playground
Two old men are playing chess the tree
There are some birds the tree
on under in/underThe English books are under the radio
英语书在收音机下面
剖析 介词 under“……”意为 在下
如 :They are under the tree
拓展 under 的反义词为 on
(1) 介词 on 表示“在……上”
如 :Look
Your watch is on the desk
你的手表在课桌上
(2) 介词 on 还可表示“在…… ( 树 ) 上结…… ( 果实 )”
如 :There are some apples on the tree
树上结了一些苹果