As a new thing, the network brings good and bad concrete manifestations to people's life and study, and how we should dialectically understand and recognize the advantages and disadvantages of the network.

Keywords: dialectical evaluation of network advantages and disadvantages

Everything has advantages and disadvantages, which are both advantages and disadvantages for the current network, mainly depending on how we use it, how to grasp it and how to treat it dialectically. We should have a good understanding of these two aspects, make good use of them, and improve them, then it can really be regarded as a lot of benefits.

The internet has brought countless benefits to mankind. The appearance of network is the symbol of the progress of modern society and the development of science and technology. Illiteracy in the modern sense no longer refers to those who can't read, but people who don't understand that computers are divorced from the information age. In ancient times when science was underdeveloped, people often fantasized that they could know what was going on in the world without leaving home. Now, the rapid spread of information has made this fantasy a reality. As a pupil of 2 1 century, can you still read only sage books and not know what's going on in the world? Surfing the Internet does have many benefits. It can broaden our horizons, provide us with the liberalization of communication, the liberalization of making friends and the success of playing games, and let us know that we should constantly strive for innovation. If we win, we will have a sense of accomplishment. But the network still has shortcomings. The most obvious thing is that many students are addicted to online games. Chatting, neglecting studies, wasting time. Once addicted, the consequences are unimaginable. What's more, a small number of students have embarked on the road of crime because of surfing the Internet, and finally, they have left lifelong regrets. It can be described as follows: students' self-control is limited, and the attraction of the Internet is unlimited.

Mankind will step into the information age, and the network is more and more strongly involved in our lives, and it is getting closer and closer to us. 1. Necessity. This is an era of knowledge economy, information is expanding and exploding at an unprecedented speed, and the future world is the world of network. If China wants to keep pace with the times in this information world, as the main force in the 2 1 century, it must be able to adapt to this high-tech society more quickly, have the ability to obtain effective scientific information from the outside world quickly and timely, and have the ability to disseminate scientific information, which is scientific quality. And the Internet has just adapted to this requirement. 2. practicality. The resources of the online world are enjoyed, just like a cornucopia, an inexhaustible "golden mountain of wealth". Whoever works hard on this golden mountain will gain something. We can find learning materials from them at the fastest speed, learn more extracurricular knowledge, use the knowledge in class flexibly, promote the development of thinking and cultivate the creativity of primary school students. Surfing the internet can also transcend the time and space and economic restrictions and receive online education from prestigious schools. If you have any questions, you can always get the teacher's guidance through the Internet. Moreover, interactive learning, rich three-dimensional graphics display, language explanation and other multimedia content on the network make learning easy and interesting, which is beyond the reach of any textbook! Besides, the usage rate and content of English are the most on the Internet, accounting for 84% and 90% respectively, which will encourage us to learn English more actively. Is this not good? Reality. The urgent task is to establish computer classrooms in every primary and secondary school, popularize network knowledge, promote primary school students to surf the Internet at home, and realize distance education and knowledge sharing, so as to cultivate primary school students' interest and awareness in learning and applying information technology and cultivate our ability to acquire, analyze and process information.

Modern network is beneficial to our intellectual development. With the cooperation of ten fingers and computers, we apply various functions of computer network, which is helpful to improve our intelligence, skills and intelligence, which are the three elements that reflect people's quality. Secondly, surfing the Internet helps to expand our knowledge field and gain a wide range of new knowledge through the Internet. For a long time, we have paid more attention to the cultivation of specialized talents and neglected the integration of various knowledge. Therefore, it is difficult to perfect the strategy of quality education. In many fields, the lack of compound new writers directly affects the development of various industries. Therefore, cultivating the combination of all kinds of knowledge from childhood is not only conducive to the promotion of quality education, but also of great significance to the talent strategy of 2 1 century. In addition, the increase in the proportion of Internet users will help speed up the process of social informatization, which plays a very important role in economic development and social progress. By sending e-mails online, we can establish the awareness of e-mail, e-commerce and e-writing from an early age, which can save a lot of wood pulp and paper and improve the level of environmental protection. As the future of the motherland, it is an important symbol of the quality of the whole nation to establish the awareness of e-commerce and improve the awareness of using e-money, which is also helpful to promote the process of e-money and enhance the quality of the whole nation. Learning computers well also helps to stimulate our creativity. Thirdly, we can learn a lot of rich resources and information on the Internet. The Internet is also a good teacher. With the development of science and technology, computers will become more and more advanced and widely used. Its appearance has brought us many changes, and people can write accurately through computer operation.

However, due to the two sides of things, the network has also brought many adverse effects to our real life, and the network is increasingly full of violence, pornography and other negative information shocks. There are also more and more people who are addicted to online games, so that students with poor self-control cannot extricate themselves and spend a lot of time surfing the Internet, thus affecting their academic performance. The network is mixed with good and bad, and it is easy to access bad web pages, such as pornography and violence. Moreover, because students are often easily influenced, have poor self-control ability and weak discrimination ability, they often embark on the road of crime because of bad content on the Internet. Internet access for a long time can easily lead to hypoxia in the brain, leading to listlessness and long-term eye tension, which can easily lead to myopia. Some students who surf the Internet for a long time tend to be autistic and indulge in fantasy all day, but when they really face society and people, they will shrink back because of imagination and distance and dare not communicate with others normally. Many middle school students blur the difference between real people and game objects by playing some violent games, and often unconsciously treat people around them in the way of The Imitation Game. It costs a lot of money to surf the internet for a long time. When there is no money, people with weak self-control ability will resort to illegal means to obtain money and embark on the road of crime. Internet cafes are often hiding places for the unemployed, addicts and criminals. Staying in these places for too long often leads to accidents or temptations. Bad information and cyber crimes on the Internet pose harm and threat to the physical and mental health and safety of teenagers. Internet makes many teenagers indulge in the virtual world of the network, divorced from reality, and also makes some teenagers neglect their studies. While teenagers fully enjoy the speed and convenience of the internet age, their bodies and minds are also suffering from the negative impact of the internet. Information network is a novel world that can't resist the temptation for the younger generation who play cool idols, publicize themselves, and are full of curiosity and adventurous spirit. Due to some immature and imperfect aspects of network technology and the relative lag of network management and standardization, the negative impact of information network on the psychology of young netizens has become increasingly prominent, which has aroused widespread concern from all walks of life. This requires us to be cautious. Some young netizens are too obsessed with the "man-machine" interaction on the Internet, and the explosive network information will increase the psychological burden and pressure of young people, resulting in psychological obstacles such as "information pollution syndrome". Long-term internet access will make some teenagers addicted to it, leading to excessive dependence on the internet, becoming "addicts" of "electronic heroin" and suffering from psychological diseases such as "internet addiction". The patient's behavior is similar to drug addiction. He will be very excited when he comes into contact with the internet, and he will be lonely and unbearable when he has no chance to get in touch with it. It can be seen that the psychological harm of internet addiction can not be underestimated. Teenagers' self-control and rational development have not yet reached adulthood, so it is difficult to control themselves, which may easily lead to the emergence of Internet addiction.

Surfing the Internet and searching information or playing computer for a long time mainly has the following disadvantages: eye disease, cervical spondylosis, lumbar muscle strain, muscle tension headache, vascular headache and so on. And in severe cases, it will form stubborn muscle tension headache and scapulohumeral periarthritis, leading to mental patients. If you surf the Internet for a long time in an environment with poor ventilation and sanitation or in an air-conditioned room, colds, gastrointestinal diseases, contact dermatitis, dizziness and headache are all common symptoms.

In addition, online shopping has recently become a fashion: in recent years, many businesses have entered the network to provide online shopping services for customers. By surfing the Internet, you can sit at home, shop online and enjoy all the on-site services. It's really convenient for us, but many businesses use the internet to cheat consumers of their money, which we don't want.

As a new thing in today's world, the Internet certainly has advantages and disadvantages for our life and study. The advantages and disadvantages of the network are often just a thin line, which is often "a thousand miles away, very small". For us, we should grasp this "scale", learn what we need from the network, learn knowledge and broaden our horizons. Get rid of bad habits and things. The network is illusory, but it is also progressive and a part of contemporary life. The pros and cons of surfing the Internet are very important to you. We should treat the network dialectically and recognize and treat it from reality. As the saying goes: take its essence and discard its dross. Understand it and look at it from a materialistic perspective.