Human life can not continue without science and technology.For many years, human society has developed with theadvance of science and technology while the development ofscience and technology has in turn brought the process tomankind. So the life we are living now is more civilized than thatof our fore fathers.The development of science and technologyhave brought about many changes in people's life. For example,the invention of television and space rocket have opened a new era for mankind. Through the useof TV people can hear the sound and learn the events happening thousands of miles away. Owingto the invention of spaceship and rocket, the dream of man's landing on the moon has now cometrue.Science and technology also play an important role in our socialist construction. We may say,our socialist construction is just like a skyscraper, while science and technology are its base.Without the base, the skyscraper can't be built. Therefore, we should try our best to contribute tothe development of science and technology so as to provide a more solid base to build ourcountry.