一：简单介词
1. about：大概、差不多、关于
短语：be about to do：正要做…打算做…
What / How about doing / sth…?
she left on or about the eighth of May.
He is about 187cm tall.
What are you talking about?
They are about to leave.
How about having a picnic? = What about a picnic?
2. above：在上面、超过、高于
短语：above all（最重要的是，尤其是）
The water was already above our knees.
The coat costs above $ 10.
He is above me in rank.
The book is above my understanding.
3. after：在…以后（时间）、在…后面（位置）、接着
短语：after all（毕竟、到底）, look after（照顾）
one after another（接二连三）
year after year （年年岁岁）
He will be back after three o’clock.
Shut the door after you, please.
We all work day after day, without break.
4. against：向着、正对着、逆反、倚靠
短语：fight against（和…打架）
My house stands against the church.
Can you show any evidence against him?
He saw a woman leaning against a pine tree.
5. at：在综合地点、小地点、朝向、在某一年龄、在某方面、在某温度、以某速度、在某价格
短语：at the age of（在几岁时）at the end of（在末端终点处）at night / noon（在午夜、正午）at dawn / dusk（在清晨、黄昏）at least / most（最少、最多）
She lives at 203 Alley 20 Lane 150 Street.
The dog barked at a stranger.
He retired at 60.
We aren’t good at sports.
The tea is sold at the rate of 60 dollars a pound.
6. before：在之前（时间）、在前面（位置）
短语：before long（不久以后）
long before（很久以前）
He died before the first world war.
He paused before the door.
We should put quality before quantity.
7. beyond：在之外（空间）、超出
短语：beyond words（难以言喻）
beyond doubt（无可怀疑）
There is a village beyond the river.
He has gone beyond seas.
The situation is beyond his control.
8. but：除…之外
短语：nothing but （只是、只不过）
but for（要不是、如果没有）
Nobody saw it but me.
She could do nothing but wait.
They had no choice but to give up.
But for your help, he would have failed.
That’s nothin g but a joke.
9. by：在旁边、经过、在之前、用某种方式、根据、被
短语：step by step / little by little （逐步、渐渐）
by accident（偶然意外地）by mistake（弄错）
by post / car（邮寄、乘车）by hand（徒手）He was sitting by me.
They came by the nearest road.
He had finished his work by 9 last night.
The news came by telegram.
He moved forward inch by inch.
10. for：为了、因为、适合
短语：for the time being （暂时、目前）
for life（终生）
I did it only for you.
The class trains students for the coming contest.
He is the man for the job.
What are you looking for?
I can’t do it for I am sick now.
