about是介词吗,举例

同学,
about既是介词也是副词：
介词 prep.
1.关于,对于
My mother often spoke to me about you.
家母常和我谈起你.
2.在...的附近;在...的周围
She sat up and looked about her.
她坐了起来,环顾四周.
3.在...的身边
I had no money about me.
我身边没有带钱.
4.大约在...时候
It happened about 5 o'clock in the morning.
这事发生在早晨约莫五点钟的时候.
5.从事于
What the hell are you about?
你到底在做什么?
6.在...身上,在...的性格中
What I like about him is his sense of humor.
我喜欢的是他的幽默感.
副词 ad.
1.在四周;到处
She likes to walk about.
她喜爱四处走走.
2.在附近,在近处
There were few people about.
附近几乎无人.
3.大约;几乎
John is about the same age as Tom.
约翰和汤姆的年龄相仿.
4.向相反方向
The ship turned about midway.
船在中途掉转了航向.