Thinking from the perspective of "big harm", students on the opposing side may come up with the following reasons: (1) The emission of automobile exhaust causes environmental pollution and seriously affects people's health. (2) The emergence of television and other entertainment facilities has led to less and less communication between people and weak human relationships.

(3) The emergence of the Internet has given some people the opportunity to disrupt people's production and life...)

Disadvantages: 1: Environmental pollution. This is the most direct and conspicuous disadvantage.

2: Species extinction is accelerating. This is caused by environmental pollution and human hunting. It is also a disadvantage of technological development.

3: Personal safety is becoming increasingly insecure. On average, tens of thousands of crimes occur every day. Most of the criminal methods are related to the latest technology. In particular, gun crimes make it difficult for ordinary people to guard against them. As we can see from the Second World War, , with the development of science and technology, the damage and losses caused by today's wars are far from what they were before. They may even lead to the destruction of mankind.

4: Human physical fitness is not as good as before. The development of science and technology and the emergence of various means of transportation such as gas trains, trains, and airplanes have brought about major changes in human daily life. Human beings no longer always rely on their own two legs. Therefore, the physical quality of human beings today is compared with before. It is no longer comparable. In the past, Xiang Yu's "stretching the mountains and rivers to the limit" is no longer possible in today's society. And if this situation continues to develop, it may cause human limbs to atrophy and human beings to take a new form.

5: Various emerging germs are constantly emerging, and the destructive power of many germs has far exceeded the destructive power of previous germs. This is due to the rapid development of medical technology that has accelerated the mutation of viruses. As a result, technology has The speed of development can no longer keep up with the mutation speed of the virus. Perhaps one day mankind will perish from a major plague.