Today's people are actually different from the ancients, even now compared with 100 years ago, it is completely different. What has promoted the development of human history? What made mankind start a new way of life? This is technology. It is the development of science and technology that promotes the progress of mankind, and it is the development of science and technology that gives mankind this brand-new and beautiful life. Throughout the ages, which dynasty and generation did not attach importance to the development of science and technology? But I think there are great shortcomings, and these are the main examples.
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. There are now tens of thousands of crimes on average every day. Most of its criminal means are related to the current new technology. Especially gun-related crimes, it is impossible for ordinary people to guard against them. 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. The physical quality of human beings 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, and human beings no longer always rely on their own legs. Therefore, the physical quality of human beings cannot be compared with the past. At that time, Xiang Yu's "pulling mountains and rivers to cover the sky" is no longer feasible in today's society. If this situation continues to develop, it may make people's limbs atrophy and make people appear new forms.
The development of science and technology does more harm than good, which is an eternal theme!
2. Species extinction is accelerating. This is caused by environmental pollution and human hunting. It also belongs to the disadvantages of scientific and technological development.
3. Personal safety is increasingly insecure. Now tens of thousands of crimes occur on average every day. Most of their criminal methods are related to the current new technology. Especially gun-related crimes, ordinary people can't prevent them. 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.
Human's physical quality is not as good as before. With the development of science and technology, the emergence of vehicles such as air cars, trains and planes has greatly changed human daily life. Human beings are no longer always dependent on their own legs, so the physical quality of human beings is not comparable to that in the past. 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 and make people appear.
5. 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 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:
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 China and some countries and regions in the world every year or the potential threat of biological weapons and bioterrorism breaks out.
In the 20th century, the whole international community made unremitting efforts to ban biological weapons and made some progress. However, in the 2nd/kloc-0th century, the potential threat of biological weapons has greatly increased, and some countries and regions may continue to develop biological weapons. In addition, the rapid development of biotechnology has greatly increased the potential threat of biological weapons, and bioterrorism marked by the "anthrax incident" in the United States poses a real threat to international security. Yuan, head of the Department of Microbiology at the University of Hong Kong, was the first scholar to isolate coronavirus, and found that coronavirus variant was the pathogen of SARS. SARS virus belongs to RNA virus, which is easy to recombine with other virus genes and become a new virus. Moreover, many experimental results also show that the new virus produced in this way will be more toxic than the parent virus. Coronavirus can be found in many animals. This virus is easy to mutate and extremely dangerous. Therefore, Yuan believes that SARS virus has great potential to become the pathogen for manufacturing chemical and biological weapons other than smallpox.
Negative effects of biotechnology
The negative effects of biotechnology are as follows: first, unexpected security problems may occur when people develop and utilize biotechnology. Just as the environmental release of various genetically modified organisms is widely concerned about the harm to biodiversity. In addition, genetically engineered drugs, vaccines, genetically modified foods, gene therapy, etc. There may be similar problems. The misuse and unethical application of biotechnology may also bring great security risks. The study of somatic cell cloning is a prominent example.
Threats to biological resources and biodiversity From the perspective of biosafety, the invasion of alien species and the loss of biological resources may cause great harm to national interests. The environmental release of genetically modified organisms poses a great threat to biodiversity.
Potential safety hazards in microbiology laboratory
Compared with other physical and chemical laboratories or other laboratories, the microbiology and biomedical laboratory is a special laboratory. Everyone who works in it and the surrounding environment in contact with it are at high risk of contracting infectious diseases or affecting health. Omissions and accidents in microbiology laboratory management will not only lead to infection of laboratory staff, but also cause environmental pollution and large-scale population infection. Accidents of accidental infection in laboratories at home and abroad are common. In serious cases, thousands of experimental animals have to be slaughtered, even leading to the death of laboratory staff.
First of all, the biggest drawback brought by the development of science and technology is that our personal safety is increasingly insecure. In World War II, in order to force Japan to surrender quickly, the United States dropped a uranium bomb codenamed "Little Boy" on Hiroshima at 8: 00 on August 6, 1945, causing 200,000 casualties among 245,000 people in Hiroshima, and the whole urbanization was in ruins.
1August 9, 945, in the early morning 1 1: 02, after the attack on Hiroshima, the US military carried out the second atomic bomb attack on Japan, targeting Nagasaki. The bombing caused more than 654.38+10,000 people of Nagasaki's population of 230,000 to be killed or missing that day, and 60% of the buildings in the city were destroyed.
The injuries caused by the atomic bombings in Hiroshima and Nagasaki have been left to this day, and survivors have suffered from radiation sequelae such as cancer, leukemia and skin burns. As of August, 2007, according to the statistics of relevant Japanese departments, the number of people who died from atomic bombing in Hiroshima and Nagasaki has exceeded 250,000 and140,000 respectively. At the beginning, the development of nuclear weapons made science and technology advance by leaps and bounds. But now, because of nuclear weapons, many people have lost their lives and families.
Coincidentally. Disadvantages brought by the development of science and technology: With the development of science and technology and the improvement of people's living standards, environmental pollution is also increasing, especially in developing countries, which has increasingly become one of the common topics of all countries in the world. Because people's negative impact on highly developed industries is not expected to be unfavorable, it has led to three global crises: resource shortage, environmental pollution and ecological destruction.
To sum up, the disadvantages of scientific and technological development have deeply hurt us human beings and broken the stable development of society. So we think that the disadvantages of scientific and technological development outweigh the advantages.
There is an argument on the other side: how many amazing changes have taken place in the world since mankind entered the 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 invasion of various viruses, the exhaust gas behind cars, the exhaust gas from factories and so on. Don't invade our beautiful home. Why are our homes threatened, why are trees cut down in large numbers, and why is the air not fresh? These are all kinds of criminal evidence brought by science and technology. Modern science and technology have brought us some comfort and convenience, but at the same time, they have also brought about a wide range of influences. How can human beings live comfortably without a beautiful environment? If people don't remedy their mistakes quickly, mankind will eventually be destroyed by science and technology.
Opposing point of view: the development of science and technology has brought benefits to our lives, which we do not deny. However, we believe that the disadvantages brought by technology outweigh the benefits. First of all, although cars are convenient for us to travel, the exhaust gas from archways has caused environmental pollution and affected human health. Second, the appearance of entertainment facilities such as television has brought convenience to people, but it has also virtually blocked the communication between people, which is weak. There is also the emergence of the Internet. There is no denying that some lawless elements have the opportunity to disrupt people's lives and wait for a series of side effects brought by your so-called high technology. How can you just sit back and watch?
Three arguments are opposite to each other: just now, the other's argument is just a hypothesis. Please come back to reality and ask, if there is no obstruction from science and technology, why should we promote environmental protection now? Besides, the current network problem is exactly what everyone is worried about. Many teenagers who should be happy in the motherland have gone astray and embarked on the road of crime. You said that although the internet can facilitate us to find information, how can such a small advantage be compared with the future of the motherland?
Oppose the other side's four arguments: the other side thinks the network problem is very important. Teenagers are the flowers of the motherland, and the future of the motherland depends on teenagers. The internet has made teenagers confused, and how many teenagers can't extricate themselves from it? If the next generation of the motherland is addicted to the internet, how can they realize more dreams of the motherland? Excuse me, another debater.
Contrary: In primitive times, human beings only needed resources on the surface of the earth to survive, and only needed biological resources such as streams, fruits on trees and grass seeds to entertain themselves. Later, tools appeared, and then breeding was carried out, and the resources were utilized to a depth of one foot. Later, coal mines, metals and other resources went down to the seabed of 100 meters, and then down to 5000 meters. When people make use of them, they speed up their quest for resources from the depths of the earth.
Four arguments against it: in today's society, science is developing rapidly and many high-tech products are constantly emerging. Computers, cars, dishwashers, washing machines ... have entered the lives of ordinary people. They do bring a lot of convenience to our lives, but at the same time they gradually lose the basic abilities of human beings. With computers, people no longer think with their brains, because they can do it with computers; With cars, people are no longer used to walking, walking, but driving for a ride; With the dishwasher, people no longer wash dishes by hand. Maybe one day, people will forget how to wash dishes. The development of science and technology is mixed. Happily, it provides the greatest convenience for our life. What is worrying is that one day computers will replace the human brain and machines will replace the hands. By then, the world will no longer be dominated by people who think they are smart, but machines invented by human beings! So I think: the development of science and technology will inhibit the all-round development of people!
Another example is airplanes, rockets, networks and satellites, which originally appeared for military wars. The same technology is used as an accomplice to the destruction of mankind while benefiting mankind. So we think that the disadvantages of scientific and technological development outweigh the advantages!
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:
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.
Potential threats of biological weapons and bioterrorism
In the 20th century, the whole international community made unremitting efforts to ban biological weapons and made some progress. However, in the 2nd/kloc-0th century, the potential threat of biological weapons has greatly increased, and some countries and regions may continue to develop biological weapons. In addition, the rapid development of biotechnology has greatly increased the potential threat of biological weapons, and bioterrorism marked by the "anthrax incident" in the United States poses a real threat to international security. Yuan, head of the Department of Microbiology at the University of Hong Kong, was the first scholar to isolate coronavirus, and found that coronavirus variant was the pathogen of SARS. SARS virus belongs to RNA virus, which is easy to recombine with other virus genes and become a new virus. Moreover, many experimental results also show that the new virus produced in this way will be more toxic than the parent virus. Coronavirus can be found in many animals. This virus is easy to mutate and extremely dangerous. Therefore, Yuan believes that SARS virus has great potential to become the pathogen for manufacturing chemical and biological weapons other than smallpox.
Negative effects of biotechnology
The negative effects of biotechnology are as follows: first, unexpected security problems may occur when people develop and utilize biotechnology. Just as the environmental release of various genetically modified organisms is widely concerned about the harm to biodiversity. In addition, genetically engineered drugs, vaccines, genetically modified foods, gene therapy, etc. There may be similar problems. The misuse and unethical application of biotechnology may also bring great security risks. The study of somatic cell cloning is a prominent example.
Threats to biological resources and biodiversity
From the perspective of biosafety, the invasion of alien species and the loss of biological resources may cause great harm to national interests. The environmental release of genetically modified organisms poses a great threat to biodiversity.
Potential safety hazards in microbiology laboratory
Compared with other physical and chemical laboratories or other laboratories, the microbiology and biomedical laboratory is a special laboratory. Everyone who works in it and the surrounding environment in contact with it are at high risk of contracting infectious diseases or affecting health. Omissions and accidents in microbiology laboratory management will not only lead to infection of laboratory staff, but also cause environmental pollution and large-scale population infection. Accidents of accidental infection in laboratories at home and abroad are common. In serious cases, thousands of experimental animals have to be slaughtered, even leading to the death of laboratory staff.
At present, with the rapid development of biotechnology, biosafety has become a major proposition that affects the politics, economy, security and peace of the whole country and even the whole world. In recent years, especially after the "anthrax infection incident" in the United States, biosafety issues have attracted much attention at home and abroad, and biosafety terms often appear in government or non-governmental organization documents and in various media. The global epidemic of SARS will undoubtedly make countries around the world pay more attention to biological safety and regard it as an integral part of national security.
With the development of economy, the acceleration of people's life rhythm and the improvement of living standards, the amount of plastics
Increasing day by day. From 65438 to 0996, the consumption of plastic packaging in China reached 2.43 million tons, with an average annual growth rate exceeding.
20%, especially in cities, main traffic routes and tourist attractions, plastic waste is increasing rapidly.
According to the survey, the annual output of domestic waste in Beijing has reached 3 million tons, of which waste plastics account for about 3%, increasing year by year.
The growth rate reached 48%. The content of plastic in garbage in coastal cities is higher, reaching 8- 10%. These wastes
If the proportion of plastic in garbage is calculated by volume, it has reached more than one third, and it has greatly increased.
The difficulty and cost of garbage disposal.
Because waste plastics are difficult to degrade for hundreds of years, if discarded in the natural environment, it will give mosquitoes, flies and
Bacteria provide a hotbed for survival and reproduction; If buried underground, it is easy to pollute groundwater and hinder plant roots.
The growth of strains destroys soil quality and affects crop harvest; If you burn with fire, it will produce a variety of toxic gases.
Body. "White pollution" has become a major public hazard that harms the social environment of China and seriously hinders the development of China.
Sustainable development of economy and environment.
Our class quarreled! After using this information, the opponent has nothing to say!