51.Today life is much better than before. Vision phone(可视电话) is used in some ?provinces.? Maybe it will be used in every family. People can have an examination ?about? their health without a doctor or a nurse in the room. 52.Now some people do some shopping at home.
53.And how about our education? There have been more educational(教育的) ?programs? on the radio， on TV or on the Internet. Some children live very far away from their schools， more and more of them don't need to go to school every day now. They can study at home. 54.Teachers teach them on the Internet.?
In the future， each family will have a robot. 55.Robots will help people with their housework. In some years people can have a trip on the moon and some people can live under the sea in hot summer.