1. since(自从)They have been close friends since childhood.(从儿童时期他们就是好朋友)
We've always been on guard since then.(be on guard 警惕)
2. through (通过、穿过) There is a path through the garden.
I've gone through the book.(go through 看过 浏览过)
She must have been through a lot.( be through 受罪 )
We quickly saw through his trick. ( see through 看穿 )
How soon will you be through? (be through 打电话)
You're through now. 你的电话接通了。
He began to look through the album. (look through 翻阅)
The couple went through many hardships. (go through 经历)
3. to We'll change the date to July 10. (to 到什么时间)
Let's drink to your health. ( drink to 为什么干杯 )
Don't leave things to the last moment.(to the last moment 到最后一刻)
You're awfully nice to me. Hainan lies to the south of Guangdong. ( lie on， lie in )
To our surprise， she gave up the opportunity.(to one's suuprise 使某人感到惊奇 give up 放弃)
The final score is 3：5 in our favor.
4. under(在……的下面) The road is under repair.(be under repair 正在修理)
From here， we can see the bridge under construction.
Scientists believe that they will get weather under control some day. (under control 在控制之中)
The unpopular mayor is under constant attack in the newspapers.
5. with(和……)
Who was that with you? 你刚才和谁在一起?
Our teacher is strict with us. ( be strict with sb. 对某人严格要求)
My father is always patient with me. ( be patient with 对某人有耐心)
We're satisfied with our work. ( be satisfied with 对……满意)
We're familiar with each other. ( be famililar with 熟悉 similiar to 相似)
Her eyes were filled with tears. ( be filled with 充满)
He's in bed with flu. The ground was covered with snow.
The street is crowded with people.( be crowded with 拥挤 )
He wanted to kill two birds with one stone.( 一举两得) The girl greeted me with a smile.
The young man with glasses over there is my brother.
I found the place with great difficulty. (with great difficulty费很大劲)
It's hot outside. He was working there with only a T-shirt on.
The girl was sitting in a chair with her hands folded.
6. 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。
7. 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.
8. 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?
9. 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)
My mother was surprised at the news.(be surprised at 吃惊) He is good at drawing.
10. 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.
11.on(在……上) You hit the nail on the head. 你这话击中了要害。
Put the book on the shelf， please.
My mother was born on April 14， 1947.
(哪一年用in，具体到某一天用on)
He left Beijing for home on the morning of July 2.
(in the morning ， 具体到某一天的上午、下午、晚上用on )
On the eve of their departure， they gave a farewell banquet. (on the eve of 在……前夕)
We usually get up late on Sunday morning. On his return he told us about the meeting.
They will go on a visit to Asia. (go on a visit=visit )
He is here on business. (be on business 做生意)
The workers at the airport is on strike. (be on strike 罢工)
When we came back， we found our house on fire. (on fire 着火)
The professor is making a speech on the current situation.(关于)
This house is on sale. (on sale 出售) Who's on duty today?
The girl insists on leaving home and depends on herself for a living.
(insist on 坚持 depend on 依靠，依赖)
12.out of(出于)