First of all, everything has advantages and disadvantages. I don't need to waste my breath on the benefits of technology. Later, other debaters will talk a lot. However, we often think that what is diluted or even ignored is its negative effects. Different from other things, the opposite of technology is as sharp as a blade and as sharp as a sword, which is what we often call a double-edged sword. However, if you think that human beings have clearly realized the existence of double-edged swords, then you are somewhat naive. When humans proudly say time and time again that new technologies are being applied at the fastest speed, which shows how efficient we are, have you ever thought that it also means that it is too late to understand the negative effects of technology, or you don't want to know at all? The destruction of science and technology reflects an irreversible trend, which is the beginning of disaster.

Second, the uncertainty of the development of modern science and technology makes the double-edged sword of science and technology become the sword of Damocles. Humans have long been impatient with the use of science and technology. After years of accumulation, the negative effects of science and technology break out on a global scale at any time, which is a deeper crisis of the destructive trend of science and technology.

Third, the high dependence on science and technology makes the sword of Damocles ready to move. The subjective dependence caused by human's high trust in science and technology makes the sword wield its power at will, which directly leads to the power of science and technology to destroy human beings. When human beings sing a song of triumph for science and technology, please don't forget that science and technology can also give evil spirits the power of the devil.

Environmental pollution. This is the most direct and obvious disadvantage. Species extinction is accelerating. This is caused by environmental pollution and human hunting. It is also a disadvantage of scientific and technological development.

Personal safety is becoming more and more insecure. Now tens of thousands of crimes occur every day on average, and their criminal methods are related to the new technology in Otawa. Especially gun-related crimes, so that ordinary people can't prevent it. From the Second World War, we can already see that with the development of science and technology, the damage and losses caused by the current war are far from comparable. It may even lead to the fate of human extinction.

Please note that human physical quality is not as good as before. With the development of science and technology, the emergence of gas cars, trains, planes and other means of transportation has greatly changed human daily life. Humans no longer always rely on their own legs, so the physical quality of human beings can't be compared with before. In today's society, it is impossible for Xiang Yu to "pull out mountains and rivers". If this situation continues to develop, it may make people's limbs atrophy.

All kinds of emerging germs appear constantly, and the lethality of many germs has far exceeded the destructive power of previous germs. This is because the rapid development of medical science and technology has accelerated the mutation of virus, so that the development speed of science and technology can not keep up with the mutation speed of virus. Maybe one day mankind will die of a great plague.

The harm to nature is the same as any industrial product we use, and air conditioning will inevitably bring a certain burden to our environment. A few years ago, the impact of air conditioning on nature mainly focused on the destruction of the ozone layer by refrigerants, but in recent years, due to the development of refrigerant renewal, this is no longer the main factor. The impact of air conditioning on nature in the future is still reflected in the field of energy consumption, which has accounted for a large proportion of the total energy consumption in our life and industry. The development of energy and the release of a large amount of heat to the atmospheric environment have caused a huge burden to our natural environment, which is the main problem we must solve for a long time.

Just like computers, because computers, with the network, with online games. So teenagers can't extricate themselves, neglect their studies and do nothing.

Another example is the car, the population is expanding, if everyone has a car, is there still room for human survival?

There is also air conditioning, which reduces people's adaptability to the natural environment and reduces immunity.

The key to answering this question lies in your understanding of the debate. The essence of this understanding lies in: Why should we find out the disadvantages brought by technology? This is the key to your point of view. Why? I remember a saying: technology is a double-edged sword. On the one hand, it can crush ignorance and backwardness, on the other hand, it may bring endless disasters to mankind. At this time, we emphasize the pain and disaster brought by science and technology to mankind precisely for the purpose of maximizing the positive role of this double-edged sword and benefiting mankind, not the other way around. The so-called good medicine is good for the disease, because thinking about science and technology rationally and comprehensively can keep science and technology under the control of human beings all the time and will not harm human beings in turn.

After the viewpoint is established, there are naturally some necessary examples. In fact, the example is very good: the development of atomic physics theory has enabled mankind to master nuclear energy technology, but it has also brought about the nuclear disasters in Hiroshima and Nagasaki, and brought about a "terrible peace" for mankind for 50 years. For the first time, human beings have the ability of self-destruction. In addition, there are endless nuclear accidents, among which Chernobyl in the Soviet Union is the most famous (please search online for specific data). The development of chemistry has given us unprecedented ability to transform nature, but our gunpowder and explosives have also hurt tens of millions of human compatriots. Our chemical synthesis technology has created things that do not exist in nature, but now we are also troubled by white garbage and poisoned by chemical pollution. Why are so many children suffering from leukemia in our country now? Very important factors are chemical adhesives used in home decoration and ozone-destroying freon. The development of petroleum exploration technology has greatly accelerated the pace of human progress. We have been able to fly faster than the speed of sound, but it has also brought too many wars and too much interference, and the earth began to catch a cold and have a fever. The development of biotechnology has given us the power to create life monopolized by God before, but it has also brought about ethical disorder. In short, scientific progress is always accompanied by corresponding drawbacks and dangers. Today, we must face up to these negative effects, otherwise we humans may eventually be destroyed in our own hands.

The above answer is my answer to "the disadvantages brought by technology". These two debates are basically the same. I don't know whether your debate is accurate or not. If so, then the key point of this debate is how to treat the disadvantages of science and technology. If there are disadvantages, we will not develop, or in order to avoid the disadvantages brought by scientific development, we would rather return to the primitive society. This is of course incorrect, so we discover and expose the disadvantages of science and technology in order to play the role of a rational critic. For example, it was found that the harm of freon to the ozone layer did not stop people from using refrigerators, but used other refrigerants. After discovering that carbon dioxide can produce greenhouse effect, human beings did not stop using related fuels, but signed the Kyoto Protocol to limit greenhouse gas emissions. The same examples are numerous, so your point of view is rational criticism. It is precisely because of rational criticism that human beings have survived from self-destruction again and again. This is your argument. The development of human beings always needs some people to play the role of critics, and the core of freedom of speech is to ensure the moral freedom of those critics and the right of human beings to obtain different opinions. How many amazing changes have taken place in the world since mankind entered 2 1 century. While people are delighted with the rapid development of science and technology, they have also experienced better anxiety and even disasters. In addition to the panic caused by the development of high technology, especially biotechnology, war and disease seem to directly bring mankind to the door of hell.

The epidemic of SARS in 2003, including all the speculations about SARS, is directly related to the global problem that people are paying more and more attention to: biological safety. Biosafety is a scientific and technological system for detecting, evaluating, monitoring, preventing and treating biological hazards. It is a new frontier discipline that studies the influence of various biological factors on human health, and applies existing theoretical knowledge, technology, engineering design and equipment to prevent people, laboratories and the environment engaged in related work from being harmed by potentially infectious substances and biotoxic substances. Biosafety problems are at least manifested in the following aspects:

First of all, the first point is the great harm of infectious diseases.

Infectious diseases, including human, animal and plant infectious diseases, especially human infectious diseases, are the most important biosafety issues. Infectious diseases are still the leading cause of death in the world. In China, infectious diseases still pose a serious threat to people's health and national security. The prevalence of SARS is a strong proof. In addition, infectious diseases such as hepatitis, tuberculosis and influenza are still prevalent in some parts of the country and some countries and regions in the world every year.

At present, the impact of desertification accounts for 25% of the earth's land area and the affected population accounts for 12% of the world's total population. By the end of this century, the affected area will expand to 35% of the earth's land area and 20% of the total population, and about 100 countries will be affected, and desertification may become a global disaster. The rural population seriously affected by desertification has increased from 57 million in 1977 to 654.38+350 million at present. In poor sub-Saharan Africa, desertification is particularly serious, with a rate of 6 kilometers per year. The area affected by desertification in this area has reached 750 million hectares, equivalent to the area of Australia.

Next, I will give our professional debater a question. Do you know that?/You know what?

Life on the earth is disappearing at the rate of 160 species per day, and about 10000 ~ 20000 species are extinct every year. Scientists predict that 1/4 of all living things on earth will be extinct in the next 20 to 30 years if no protective measures are taken. :)

At present, one species is extinct on the earth about every 45 minutes. At this rate, please predict how many species will be extinct in ten years (calculated by 365 days a year). ( )

A 5.256 times the 6th power of 10 and B 1. 168 times the 5th power of 10.

C 5.256 times the fifth power of 10 D 1. 167 times the fourth power of 10.

194 1, the Swedes told Mwester that many animals walking with their noses were really found in the Hayayi Islands in the South Pacific, which attracted everyone's attention. It's a pity that the rhinoceros hasn't had time to show it to you. 1957 A secret nuclear experiment in the United States led to the sinking of the entire Hai 'ai Archipelago, and all the rhinoceros were killed, leaving no living corpse. From discovery to destruction, this animal that walks with its nose only stayed in human vision for a short period of 16 years. Nasal animals are viviparous mammals, with 14 families and 189 species. The biggest feature of rhinoceros is that it has a nose with unique structure and function. The number of noses varies from one to several, and the shapes of noses are also strange. Some are like pillars, some like branches, some like horns, and some like snails. The function of the nose has been alienated to be mainly used to move and support the body, including crawling, jumping and catching food, so its nose is called "nose walking organ". The hind limbs of rhinoceros almost degenerated without a trace, and most of the forelimbs were obviously reduced, and they no longer had crawling function. Most of them have body hair, their bodies are capillary and bright, and they are very beautiful. Their tails are developed, some can catch food, and some are poisonous hooks, which are effective weapons against the enemy. Besides walking, the nose of rhinoceros has different special functions.