考试大纲要求：
1、常用介词及其词义;
2、介词与某些动词、形容词、名词的固定搭配;
3、介词短语及其用法。
介词在句子中不能独立充当一个成分，往往和后面的宾语共同构成句子的成分。介词与名词、形容词、动词有着固定的搭配。
常用介词用法：
1. across(穿过)
My mother lives across the street.
I came across him yesterday. (come across偶然遇到)
The post office is just across the street.
2. after(在……之后)
The children went to bed after saying good night to their parents.
Who will look after your baby while you're away?
(look after 照看，照料，take care of)
The girl is named after her mother.
(name after 以……命名)
Rewrite the sentences after the model. (模仿，仿照)
3. against(反对)
What you are doing is against the rule.
We are against the proposal. (be against 反对)
Nobody has got anything against you.
4. along(沿着)
They walked along Nanjing Road.
There is a cinema along the street.
I'm getting along/ on well with my classmates.
5. around(围绕)
We all drew up closely around him.
The guide showed us around the city.
(show sb. around 领某人参观)
6. at(在……)
Let's meet at the station.
She was at a conference.
The committee is to meet at the weekend.
He joined up at eighteen.(join up 参军)
What are you laughing at? (laugh at 嘲笑)
Let's have a look at the picture. (have a look at 看一看)
My mother was surprised at the news.(be surprised at 吃惊)
He is good at mathematics.(be good at 擅长)
He is good at drawing.
7. before(在……之前)
Don't put the cart before the horse. 不要本末倒置。
Pride comes before a fall. 骄傲就会摔跤。
Before starting the work, we had a discussion.
Before long, the war broke out. (break out 爆发)
I bought the book the day before yesterday.
8. besides (除…之外还)
There are six students in the classroom besides me.
Besides fun and good exercise, swimming is a very useful skill.
9. between(在……之间)
Come between ten and eleven o'clock.
They don't know the difference between wheat and oats.
(among 用于三者或三者以上)
What's the difference between them?
10. beyond(在……之外)
The lake is beyond that mountain.
Don't go beyond the city boundary. (go beyond 超过)
It's expensive and beyond our reach.
The city is beyond recognition. (beyond recognition 面目全非)
The problem is too difficult. It's beyond me.
This is inevitable and beyond all doubts. 这是必然的，毫无疑义的。
