One day in 1712, a man called Adam fell asleep in London. When he woke up, it was 300 hundred years later. And that's when he began his special travel.
Adam came out of the building and stopped. What was this place? Strange boxes，made of metal (金属) and glass，moved quickly past him on wheels (轮子)，making a loud noise. There were bigger boxes too, big red ones, with 10 or 20 people inside. Sometimes the boxes stopped. There were tall posts with three lights: red, yellow and green. The lights turned on and off, the boxes stopped and started again.
All around him, there were tall buildings. And the people! People everywhere. Many of them stopped and looked at him, then they turned and walked away quickly. An old man shouted to him, "Hey, you! Are you lost? The theater's over there!" Adam walked past windows，big glass windows with women inside, but those women didn't move.
One of the metal boxes on wheels was near him — a black and white box with a blue light on top. A man in blue clothes and a strange hat got out and walked towards him. "Excuse me，Sir," said the man. Adam didn't like him. He turned away and ran.
① traffic lights ② a clothes shop ③ cars and buses ④ a police car and a policeman
