The present life is also very different from the previous life. It used to be a carriage instead of walking, but now cars can be seen everywhere, and the speed is of course countless times faster than before. There were no airplanes and telephones before, not to mention some high-tech products such as computers and televisions. Especially nowadays, smart phones have a greater impact on us, and most people never leave their mobile phones. Moreover, through the internet, we can pay attention to events around the world in our lives, and also promote the distance and understanding between people around the world. Today's technology has improved our quality of life. The development of science and technology not only brings us a happy life, but also brings us many disadvantages.
First of all, the whole world is concerned about environmental protection. The development of science and technology has created more factories and cars, and at the same time, pollution can be seen everywhere. Chemical plants discharge chemicals into rivers and pollutants into the atmosphere, which is harmful to human health and also causes a large number of biological deaths in the ecological environment. Thousands of hazards are constantly pouring into our lives, which greatly increases the probability of people being infected with diseases, such as SARS, hand, foot and mouth disease and influenza. These are all caused by the development of science and technology, and many diseases have also been added to our lives. The development of science and technology has also consumed many trees in the ecology, resulting in frequent disasters and human suffering.
The progress of science and technology makes our life colorful, and there are also many fears. We can't stop the progress of science and technology, but at the same time, we should work together to reduce the persecution of science and technology on our homeland and build a beautiful homeland.