1)Write another paragraph to complete this text.
We live in the fascinating and challenging world of science.It is a world that more and more over the ages,and especially in the 20 th century has come to affect so much of our lives.It is involed with the way we eat and the way we travel,the homes we live in and the clothes we wear,how we become ill and how medicine can make us better,and has given us fantastic means of communicating and exploring.
Because science will be around us even more in the future,tomorrow`s adults must start learning today to be ready to take their places in this computerized,transistorized,antibiotic,nuclear,supersonic age!
2)Here are seven most popular subjects science fiction writers use in their stories.Choose one of them and write a science fiction story of yor own.
a mad scientist goes against the laws of nature and creates destruction and chaos adventures in space
discovering unknown worlds on Earth
future history:utopias and antiutopias
a collision between people and extraterrestrial civilizations
travel through time
machines taking over and ruling the planet

Travel through time Is it possible to travel through time? Is it possible to travel into the past or into the future? It is a favourite theme of the science fiction and movies. To my mind, this idea has a right to be true! Time makes the world dynamic. Without time, everything would be like a photo. I believe that the time machine will be invented and everyone will have an opportunity simply go back in time to change his life, to correct some mistakes. Or in another way, a person will be able to go to the future and see what it will be like, so that the distant future. Nevertheless, this idea is very elusive, but I am sure that time travel will be possible. I would like to be a time traveler, but it is only dream. One day my people will be able to move without time.