1.(表示位置)在…里面; 在,于; 在…部位上
I could feel the tension in the room.
我可以感觉到房间里的紧张气氛.
They live in France.
他们住在法国.
2.(表示时间)在…时期,在…之后,
In her twenties and thirties she had had no difficulty getting jobs.
她在二三十岁时找工作一点也不困难.
I cannot see you now,come back in half an hour.
我现在不能见你,半小时后回来.
3.(表示方向)往…内,朝…方向
I saw him go in the shop.
我看到他走进了商店.
4.(表示状态)处于…之中,在…情况下
Martin was in his pyjamas.
马丁穿着睡衣.
They were living in terrible poverty.
他们生活在极度贫困之中.
5.(表示方式)用,以,按,乘,以…形式
They were speaking in Italian.
他们在讲意大利语.
They went up in the lift.
他们乘电梯上楼了.
6.(表示原因)由于,为了
He went in fear of his life.
他为自己的性命担忧,所以走了.
7.(表示领域,范围)在…以内
It is not in my power to do that.
做那事非我力所能及.
8.(表示结果)当做,作为
What did you give him in return?
你给他什么作为报答呢?
9.(表示目的)为了
They set off in search of the lost child.
他们出发去寻找走失的孩子.
10.[表示职业、活动等]从事于,参加
11.[表示数量、程度、比例]按,以；从…中
12.[表示品质、能力等]在…之中；在…身上
I don't think he had it in him.
我认为他没这个本事.