Question

The traffic lights are the same in every country. They are very important to keep the traffic safe. There are always three lights: red (means “stop”), yellow (means “wait”) and green (means “go”). I think everyone knows this. But do you know how they were born?

An American named Garrett A. Morgan was the father of traffic lights. Morgan was born in a poor family in 1875. He left（離開）school at the age of 14. He was very clever. He always looked for better ways to do things. And he liked to make new things. At that time, every American wanted to have a car. Streets were full of cars. The traffic was not good. “Why not put three lights at each street crossing? They should be red, yellow and green，”Morgan said. “Let them tell cars to go, wait or stop.” So he made a timer（定時器）to change the lights. Now we have traffic lights on the street today. When we go by car, by bike or on foot on the street, we must follow the signs of the traffic lights.

1.How many traffic lights are there in every country?

2.When was Garrett A Morgan born?

3.What should we do when we was yellow lights?

4.Who was the father of traffic lights?

5.Do we use the traffic lights at each street crossing today?

Answer 1