What will our life be like in 50 years? No one knows the answer exactly（确切地）. 【小题1】 My brother Jill White makes some predictions. Here are some of his ideas.

First, people will have less work to do, and robots will do most work. People will use robots to make cars, do the housework, look after sick people and teach students. 【小题2】 So people will become stronger and healthier, and they will live to be about 200 years old. 

Second, cars will become very small and computers will control their speed. 【小题3】 Planes will be very popular, and most people would like to take them to travel.

Third, people will be able to live in the sea,on the moon or on Mars. 【小题4】 So there will be much space for people to plant trees. There will be less pollution, and the air will become much fresher.

【小题5】 If people don't save water now,there will be water wars（战争）in 50 years.