内容简介

介词 “at、on” 和 “in” 都可以用来表示人或事物所在的位置或地点。其中，哪个词表示 “在物体的表面上”？哪个指 “在立体空间内”？看视频，听主持人 Sam 讲解 “at、on” 和 “in” 在表示位置时各自的用法。

文字稿

Hello, I'm Sam and in this lesson we're going to look at the differences between at, in and on for location.

At can be used to talk about a single specific location. I'm at work. Or: I'm at the BBC right now.

On is used in relation to a surface. I'm sitting on a chair.

And in is used to talk about a three-dimensional space, usually with four walls. It's similar to 'inside'. I'm in a room.

So to help you remember these rules, try to think of a concert:

I'm at the front. The band is on the stage. And my friends are in the crowd.

And where are you right now?

用法总结

1. 我们用 “at” 来表示 “在具体的位置”。 

• I'm at work.
• I left my keys at home.

2. 我们用 “on” 来表示 “在物体的表面上”。

• I'm sitting on a chair.
• The pen is on the desk.

3. 我们用 “in” 来表示 “在立体空间内”，在这种情况下，“in” 与 “inside” 用法相似。

• I'm in a room.
• The cat is in a box. 

4. 想象在一场演出中，不同人员的所处方位，记忆 “at”、“on” 和 “in” 在表 “位置” 时的用法：

• I'm at the front. The band is on the stage. And my friends are in the crowd.