A1

Amy: When you go out, you should pay attention to different public signs.

Shirley: What are public signs?

Amy: Public signs are signs used in public places. They’re often bright in colours and have pictures on them.

Shirley: What are they used for?

Amy: They help explain things and give us useful information. They help us find our way, tell us about the places around us and keep us safe from danger. Some signs also warn us not to do something.

A2

Shirley: Can you give me some examples, Amy?

Amy: A sign with a red line across it usually warns us not to do something. Look at this one. There’s a cigarette with a red line across it. It means“No smoking”. You can find it in places like hospitals. And in that one, there’s a camera with a red line across it. It means “No photos”. We often see that sign in places like museums.

Shirley: I see. What about this one, Amy? There’s a letter “P” with a red line across it.

Amy: It means“No parking”. We can see it in the street.

Shirley: In this sign, a person is throwing litter on the ground. There’s a red line across it too. It must mean“No littering”.

Amy: Yes, you’re right. It warns people not to throw rubbish around. We can see it in public places like parks.