When we sit in front of the television to watch the colorful programs we hand on the mouse in the computer world; when we are in the spring season with relish eatingwatermelon...... We may have thought: what brings our life change so much? Is science!Is a great strength of science and technology, changing everything around us, changed the world! With the progress of science and technology, the face of the world what has changed? Grandma said: people live longer! Developed in science, hunger and diseasehas been a threat to the enemy of human existence, countless people by disease and starvation mercilessly killed precious life. Chinas establishment of the new China, the average life expectancy of the population was only 35 years old. No wonder her old grandmother before talking about life rarely live to seventy sigh. And now, what have Iheadache and fever, to the hospital to buy some medicine to fight a few needles. So, my grandmother very happy all day long to boast of good health, what people live a hundred years is not surprising said! Dad said: our work easier! No longer the same --face loess back into the air like a grandfather when, on the hard physical labor, on theelusive God dinner. In the use of high-tech agricultural park, arable land, sowing,harvesting and other procedures can be used to manage the computer, to complete for agricultural machinery. It makes people from heavy manual labor freed. Mother said: our life better! Before, people always worry about the problem of food and clothing. The development of science and technology, let us fill the rice bag, filled with vegetable, not only to eat, and eat well, eat more rich. Last year, my family also built two four storey building. I also have their own little world, father is still in my room to install air conditioning, warm in winter and cool in summer, I can sit comfortably An Jingjing, writingin reading story books. I want to say, I feel that the progress of science and technology,the world has become smaller! The annual Spring Festival, Zhang uncle next door tothe long-distance telephone, and as far away as Taiwans brother call to congratulate,separated by thousands of miles of the family in the ear. You want to learn from India,along the way to travel over land and water, brave the wind and dew, experienced all kinds of hardships, had walked for several years before they reached their destination.Now, fast and safe vehicle, ship, aircraft and other transportation our footprints inalmost all the places on earth. The five one festival, our family went to the capital Beijing! In the east of the world, our ancestors invented gunpowder, the compass,printing, papermaking, creating its own brilliant history. We are lucky to grow in a new era, science has never been so dazzlingly beautiful flowers, the road of science has never been so wide. Students, let us from an early age to develop good habit of lovescience, science, scientific spirit, and climb the heights of science, to create a beautiful home.