Unit 3 Making contact Fun time A

原文：

There are some interesting old ways to send messages.
Some people use smoke to show they need help.
Their friends can see the smoke,and they know there is a problem.
Then they will go to help.

Other people use birds to send messages.
They take a bird from its home.
They write a small message on some paper and put the paper on the bird's leg.
Then the bird will fly back home with the message.

Of course,there are many new ways to send messages today.
Many people use the Internet to send messages.
The messages travel around the world very quickly.
People also send text messages on their phones.
It's very fast,too.