Living in the contemporary society, we can obviously feel the great influence of the development of modern science and technology on our lives. The development of modern science and technology has largely changed people's way of life, learning and working. "Science and technology is a double-edged sword" should be a truth recognized by almost everyone. The development of modern science and technology is a double-edged sword, it has brought a lot of convenience to our lives, but there are also many drawbacks.

Telephones, cell phones, the Internet almost replaced the original letters, telegrams, people's communication time is greatly shortened; cars, airplanes and other modern means of transportation for people to save a lot of traffic time; washing machines, refrigerators and other new appliances to bring a lot of convenience to people's lives; the emergence of television, computers have greatly enriched people's lives ------

The most influential modern technology I think should be the most important thing to us. I think the most influential modern technology should be the Internet. Using the Internet, we can do many things. We can find the information we need on it. The Internet can be regarded as a real "encyclopedia", on which there is almost all kinds of knowledge. Sometimes we want to know something, as long as the Internet a search can get the answer, both fast and convenient. The Internet has a lot of news, information, we and the outside world closely linked together, really proved that "showman does not go out, all know the world". We can use it as a communication tool to communicate with others. The Internet also provides us with a lot of entertainment platforms, people can find a lot of things on it can be used for fun. The Internet creates more opportunities for people's learning, which becomes more convenient, and also makes distance learning possible. Recently, online office has also become the choice of many people who can work from home with relatively free working hours. The emergence of online shopping has also brought a lot of convenience to people's lives, and now many things can be purchased online, saving people a lot of time and energy. The benefits that the Internet has brought to people can be said to be irreplaceable by many other technologies, and its advantages are hard to list.

While enjoying the convenience of modern technology, we also feel the harm they bring. The development of physical science and technology has brought people nuclear technology, providing them with new energy. But at the same time, it is also the culprit of the huge nuclear disasters in Hiroshima and Nagasaki. What's more, nuclear leakage due to improper use of nuclear technology or other reasons has become a great killer of human health. Modern high-tech not only plays a great role in improving people's living standard and promoting social development, but they have also become indispensable criminal props for lawless elements. Nowadays, many high-tech criminal means that people really can not be recognized, the development of high technology in this regard has become an important reason for people to be deceived. This also makes people feel more and more personal safety can not be guaranteed.

With modern transportation, many people go out is to take the car, take the plane; Internet applications and online shopping fire, shaped a batch after batch of home men and women. It can be said that technology has made many people become lazier and lazier, and thus their physical fitness has become worse and worse. Although the list of benefits brought by the Internet is endless, it has also brought some bad things. Not only is there a lot of useful information on the Internet, but it is also filled with a lot of false and bad information, which makes people afraid to trust the information on the Internet. So it has actually alienated people to some extent while strengthening their ties with each other.

Also, the rapid development of science and technology has accelerated people's development and utilization of the earth's resources, many of which are unreasonable and have a great negative impact on the earth's environment. All in all, many of the developments in modern science and technology have played a great role in hindering the harmony of human society.

Science and technology are double-edged swords, and this is a reality that cannot be changed. But we can and must do our best to minimize the harm it brings, so that it can fully play its favorable role - for the benefit of mankind.