Water will flood the lowlands of Shanghai. For example, some lowlands near the ocean will be submerged. However, some mountains on the island of Hawaii will rise and become very big.
health
Doctors can predict and prevent some diseases. Some diseases don't need to be cured by surgery all their lives. They will use some special instruments to send electric waves to the human body to restore the health of patients. They don't cause danger and diseases, such as cancer.
home
People will live in cheap houses made of very strong paper. People can move the walls of a room to make it bigger or smaller. Everyone will have robots at home. These robots can clean the room, cook and look after the yard.
pollute
Pollution will be reduced because people will use more clean energy and electricity. More trees will be planted to purify the air.
food
People all over the world eat different foods. People will weigh heavy fruits and vegetables in glass houses. That kind of vegetables and fruits will weigh two or three times as much as they are now, and they are delicious.
practise
People will use instruments to move in place, not to move their bodies. They can stand or sit on the machine, which emits electric waves to human muscles, so people don't need to move. But people can still play games and love sports.
society
People will live and work in a big environment. There will be no more countries, only five or six very big countries. For example, Europe will be a big country. North and South America will be a big country, and East Asia will be a country. There will be almost no war.