多啦の梦(3) in 表示位置， 意为“在…里面”， 也可以用来表示在一个很大的空间内。 Mary works in a bank.
There isn’t a cloud in the sky.
What’s in the box?
He put his hands in his pockets.
(4) at 表示“在某地点”。
I will wait for you at the station.
(5) around 和about 均表示“在…周围”。
They sat around the table.
We walked about the town.
(6) behind 表示“在…..的后面”。
There is a broom behind the door.
(7) in front of 表示“在……的前面”。
There is a new white car in front of the house.
(8) between 表示“在两者之间”。
My bedroom is between my two sisters’.
(9)表示“在某地”时，at后面接小地方，in后接大地方。
如：at home在家 at the bus stop在汽车站 in China在中国 in the world在世界上
3. 表示动向的介词。
(1) into 和out of
into表示“从外向里”的意思； out of 表示“从里向外”的意思。
I saw them go into the house.
Lily ran out of the classroom.
(2) up 和down
up 表示“向上”， down 表示“向下”。
We climbed up the mountain to the top.
She opened the door and went down the stairs.
(3) across 和through
相同点： 两者都表示“通过， 穿过”的意思。
不同点：
across表示“穿过”这一动作在某个物体的表面进行。
