Teachers and students, everyone, about the development of science and technology is a big advantage or disadvantage of this question, our friends agree that the development of science and technology is more beneficial than detrimental.
The way of life of human beings will not change much from 200,000 years ago to 100,000 years ago, from 3,000 years ago to 2,000 years ago, and from 600 years ago to 500 years ago. However, present-day people and ancient people have in fact long been different from what they were in the past, and even now, compared with 100 years ago, they are completely different. What drives the development of human history? What started mankind on a new way of being?
I say, this is science and technology, is the development of science and technology to promote the process of human beings, is the development of science and technology to make human beings have this new and beautiful life. Throughout the ages, which dynasty and which generation did not attach importance to the development of science and technology? Looking back, look at the four great inventions, unique; look at the astronomical calendar, marveled at; look at the Zhaozhou Arch Bridge, the design is exquisite; peep "Materia Medica", the Oriental canon; look at the value of pi, seven decimal; look at the Silk Road, the development of the economy; end of the blue and white porcelain, famous overseas. Scientific and technological development is the road to a strong country, scientific and technological development is the first driving force for the progress of the Chinese nation, no science, where we are today's happy life? Without science and technology, where we have a comfortable material life and spiritual enjoyment? Without the progress of science and technology, how can we eat the hybrid two? How can we wear cotton clothes, how can we live in high-rise buildings?
Ask, the development of science and technology benefits or disadvantages? There is no doubt, of course, is the benefit! What is the explanation? There is no need to explain! Chinese civilization eight thousand years of history and civilization is ironclad, history is changing every moment, technology is developing every moment. Human beings have learned to utilize or cook food from the primitive life of drinking blood and hair, from relying on nature to breeding and raising, from unarmed iron to metallurgy and stone smelting, isn't this all progress, isn't this all development? If the disadvantages outweigh the advantages, then why do human beings still coincidentally choose progress? Only progress can make tomorrow better!
A person who does not make progress is pathetic, a country that does not make progress is downtrodden, a world that does not make progress is dark. Only in continuous progress can human life be sublimated. Man is small, man is fragile, he does not have a huge body, no ox-like strength, no turtle's hard shell. But God gave mankind a smart brain, a pair of hard-working hands, mankind did not sit back and enjoy the success, but chose to continue to progress, can only stand in the top of the food chain today.
Let's compare today's life with that of 100,000 years ago, we are supreme; compare today with that of thousands of years ago, we are condescending; compare today with that of hundreds of years ago, we are happy and comfortable; compare today with that of tomorrow, the future is bright and beautiful. Thousands of years, from the horse-drawn carriage into cars, trains, airplanes; from kerosene lamps into incandescent lamps, neon lamps, energy-saving lamps; from the ends of the earth into the near at hand, video chatting, a little bit of the mouse to know the world.
We are happy, we are lucky, we caught up with a high-speed development of science and technology, an era full of high-tech, it is not only our ancestors in the evolution of the choice of development, choice of progress, but also includes all the unremitting efforts, hard work, how many of us today's day when the hard-working scientists with the wisdom of the even life in exchange.
Because of Faraday, we live around the full of a variety of electrical appliances; because of Darwin, because Mendel, we can better understand themselves, cognitively; because of the magpie, because of Hua Tuo, because Li Shizhen, our life can be guaranteed.
Aren't they the ones who gave us everything around us in exchange? Life is so comfortable, life is so cozy, life is so wonderful, our average life expectancy is 30 years higher than in ancient times, we don't even have to leave our homes to visit our friends and relatives, isn't it all because of the benefits brought to us by the development of science and technology?
So, science and technology change history, we explore the development of science and technology benefits or disadvantages is no need to question, because it is the benefits! Lei big! Profit big! You say that the development of science and technology has brought about atmospheric pollution, you say that the development of science and technology has produced white trash, you say that the development of science and technology has formed a warming of the temperature ...... All things cannot be perfect, the brighter the place behind the shadows the darker, but on the basis of these you conclude that the development of science and technology has done more harm than good? "The world is different things are different" times are different, the problems encountered are also different, and then say the air pollution, the provinces and cities have launched a preventive plan; white trash, unified treatment; automobile exhaust caused by warming scientists have also developed solar-powered cars. Look at now, solar water heaters, solar air conditioning, solar batteries ...... environmentally friendly and economical solar energy has gradually entered thousands of households, this is not technology in development?
While there are drawbacks, but compared to the benefit of mankind, environmental protection homes of the concept of scientific and technological development, irrelevant, as long as there are drawbacks, scientists will likewise find a way to solve, we can not choke on food, the pace of scientific and technological development will not stop for a moment. Scientific and technological development, there is no excuse, is the benefit of the big, the only answer to this question! Just because technology has been progressing, science has been developing, cunning sophistry, generalized words, unreasonable nonsense can not change this truth. If you say that technological advances do more harm than good, ask, can you go a week without coming to class in a car, without using a neutral pen, without using a ballpoint pen, without using a fountain pen? Can you go a week without watching TV, listening to the news, reading a newspaper, reading a book, or surfing the Internet? Can you go a week without eating the hybrid rice you developed? No pasta? No drinks? Can't can't, you can't and can't be able to, because technology is already closely related to you, already inseparable from you! In ask, if you write a letter to the President, said that the proposal to stop all scientific research activities, everyone is to give you flowers, or that board special pat you?
Technology changes history, good, without the development of science and technology, our lives are unimaginable, our days are dark, is the development of science and technology to save us, is the science of our rescue from the age of fire and water. We should respect him with a heart of reverence, how can we say that the development of science and technology is full of disadvantages?
Technology changes history, knowledge changes destiny. We have entered the 21st century, into an era full of high-tech. Science has changed our lives, science has changed our destiny. "Knowledge is power", our Chinese people **** and the country, the great country of 1.3 billion people, why can the world to stand up in front of the chest? Because our technology is constantly developing! Our science and technology in constant progress!
The benefits of technological development outweigh the disadvantages, which is an unchanging theme!
The advantages and disadvantages of the development of science and technology
Conclusion: the development of science and technology is important, but can not be reasonable and normal use of the premise to develop, the development of first of all must be to purify the mind, only the individual's mind and heart to get the development and improve the development of high technology can be permanently beneficial to the development of mankind, the harmony of nature!
Cons: the above said that each of us look higher and farther away, which makes us see is just far away from the higher things to explore to pursue, ignoring the immediate do, like those in history who want to find a long life can not be some of the monarchs, drugs are used to manage the disease, the results of their blind investment to go in order to achieve some of the impossible to achieve something, and as a result, the harm to themselves and to the people, as well as the public. The result is that they have harmed themselves and the people, and the people now see the macro scene in the movie, chilling the emperor's funeral and the so-called miracle of the world.
The development of science and technology has brought both convenience and disaster. The first is that we can go to the place we want to go, people are constantly exploring, in the future may even back to the "solar center" will be overturned. In the technological development and progress of the present no one can enjoy those historical figures can not enjoy things, each newcomer to the world has a different understanding of our vision farther! /html/2/0804/928.html
The Opposition
This topic is not about listing the bad things that science and technology have brought to mankind, because if you focus on the bad things, then the other side will probably attack you: the other side, you are always listing the bad things that science and technology have brought to mankind, and it seems that science and technology have brought only disasters. It seems that the development of science and technology brings only disasters to human beings, then why do we still emphasize that science and technology is the first productive force? Why do human beings continue to develop science and technology?
The key to answering this question lies in your understanding of the topic of the debate, and the essence of this understanding is: why do we need to find out why science and technology bring bad things to people. That's the key to your side's argument, why? Remember there is a saying: technology is a double-edged sword, on the one hand, it can smash ignorance and backwardness, on the other hand, it may also bring endless disasters to human beings. At this time, we emphasize the pain and disaster brought by science and technology to human beings precisely in order to maximize the positive effects of this double-edged sword for the benefit of human beings, rather than the opposite. The so-called "good medicine is better than bad medicine" is because rational and comprehensive thinking about science and technology can make it always under the control of human beings and will not be harmful to human beings in turn.
After the establishment of the point of view, some necessary examples are naturally to have, in fact, the example is very good to cite: the development of the theory of atomic physics is that mankind has mastered the technology of nuclear energy, but it also brought the Hiroshima and Nagasaki nuclear disaster, brought mankind fifty years of "horrible peace", mankind for the first time with their own destruction of their own ability. For the first time, mankind had the ability to destroy itself. In addition, there have been numerous nuclear accidents, most notably the Chernobyl disaster in the Soviet Union (please search the Internet for specific data). The development of chemistry has allowed us to gain an unprecedented ability to modify nature, but our gunpowder and explosives have also harmed tens of millions of our fellow human beings. Our chemical synthesis technology has enabled us to create things that did not exist in nature, but now we are also plagued by white trash, poisoned by chemical pollution, and why so many children in our country are now suffering from leukemia is due to the use of chemical binders in home renovation, as well as ozone-destroying Freon. The development of oil exploration technology is the pace of human progress greatly accelerated we have been able to fly faster than the speed of sound, but this also brought too many wars and too much turmoil, but also make the earth began to cold fever. The development of biotechnology has given us the power to create life, which was previously monopolized by God, but it has also brought about ethical disorders. In short, the progress of science is always accompanied by the danger of corresponding drawbacks, and today we must face up to these negative impacts or we may end up destroying the human race in our own hands.
The above answer is my answer to the question "What are the disadvantages of science and technology for human beings? These two questions are basically the same, and I don't know if you're describing the question accurately, but if you are, the key point is still how to look at the disadvantages of technology. Is it that there are drawbacks so we don't develop it, or that we'd rather return to a primitive society in order to avoid the drawbacks of scientific development. Of course, this is not true, so we find and expose the disadvantages of science and technology in order to play the role of a rational critic, for example, some people found out that Freon is harmful to the ozone layer and did not make human beings stop using refrigerators but use other refrigerants. The discovery of the greenhouse effect of carbon dioxide did not stop the use of the fuel, but the Kyoto Protocol was signed to limit greenhouse gas emissions. The list goes on and on, so your argument is that a rational critic is a rational critic, and it is because of rational critics that mankind has survived self-destruction time and time again. That is your argument. While people have been delighted by the rapid development of science and technology, they have also experienced better uneasiness and even disaster. In addition to the panic over the development of high technology, especially biotechnology, wars and diseases seem to have brought mankind directly to the gates of hell.
The 2003 SARS epidemic, including all the speculation about SARS, is directly linked to a growing global concern: biosafety. Biosafety is a scientific and technological system of detection, evaluation, monitoring, prevention and management of biological hazards, is the study of various biological factors on human health, the application of existing theoretical knowledge, technology, engineering design and equipment, etc., to prevent personnel engaged in related work, laboratories and the environment from being potentially infectious substances and biotoxic substances of the hazards of an emerging fringe discipline. Biosecurity issues are manifested in at least the following aspects:
The great danger of infectious diseases
Infectious diseases, including human, animal and plant infectious diseases, especially human infectious diseases is the most important biosafety issues, infectious diseases are still the first cause of death in the world, in our country, infectious diseases are still a serious threat to the health of the people and national security. the SARS epidemic is a strong proof of this The SARS epidemic is a strong proof. In addition hepatitis, tuberculosis, influenza and other infectious diseases are still prevalent or outbreaks every year in some parts of the country and some countries and regions of the world
Potential Threats of Biological Weapons and Biological Terrorism
The entire international community has made unremitting efforts to prohibit biological weapons in the twentieth century, and some progress has been made. However, in the 21st century, the potential threat of biological weapons has greatly increased, and some countries and regions may still continue to research and develop biological weapons. In addition, the rapid development of biotechnology has greatly increased the potential threat of biological weapons, and bioterrorism, symbolized by the U.S. anthrax incident, has posed a real threat to international security. The anthrax incident in the United States is a real threat to international security. Yuen Kwok-yung, head of the Department of Microbiology at the University of Hong Kong, was the first scholar to isolate a coronavirus and to discover that a variant of the coronavirus was the pathogen of SARS, an RNA virus that can easily recombine with other viral genes to become a new virus. Many experiments have shown that new viruses produced in this way are more virulent than their parent viruses. Coronaviruses can be found in many animals, and they can easily mutate, making them extremely dangerous. Yuan therefore believes that the SARS virus has great potential to become a pathogen for making biochemical weapons in addition to smallpox.
Negative effects of biotechnology
The negative effects of biotechnology are mainly manifested in the following ways: First, when people develop and utilize biotechnology, unexpected safety problems may arise. As the current widespread concern about the various types of genetically modified organisms living environment after the release of the harm posed to biodiversity. In addition, genetically engineered drugs and vaccines, genetically modified foods, gene therapy, and so on, may have similar problems. Misuse of biotechnology and unethical application of biotechnology may also pose significant safety risks. The research on somatic cell cloning of human beings is a prominent example.
Threats to Biological Resources and Biodiversity
From the perspective of biosecurity, the invasion of foreign species and the loss of biological resources may cause great damage to national interests. The environmental release of genetically modified organisms poses a great threat to biodiversity.
Safety hazards in microbiology laboratories
Compared with other physical and chemical laboratories or other kinds of laboratories, microbiology and biomedical laboratories are special laboratories in which everyone working in them, as well as the surroundings they come into contact with, have a high risk of suffering from infectious diseases or affecting their health. Negligence and accidents in the management of microbiological laboratories can lead not only to infections among laboratory workers, but also to environmental contamination and large-scale population infections. Accidents of accidental infection in laboratories at home and abroad are not uncommon, and in serious cases, thousands of laboratory 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 whole country and the whole world in terms of politics, economy, security and peace. In recent years, especially after the anthrax infection in the U.S., biosafety has attracted much attention both at home and abroad, and biosafety terminology is often found in governmental or nongovernmental organizations' documents and all kinds of media, and the global pandemic of SARS will undoubtedly make countries all over the world pay more attention to biosafety and take it as a component of national security. component of national security.
With the development of the economy, the accelerated pace of people's lives and the improvement of living standards, the amount of plastic
is increasing day by day. 1996, China's use of plastic packaging amounted to 2.43 million tons, with an average annual growth rate of more than
20%, especially in the city, along the main transportation routes, the rapid increase of plastic waste in the garbage in tourist attractions.
According to the survey, the annual output of domestic garbage in Beijing has reached 3 million tons, of which waste plastics account for about 3%, with an annual growth rate of
48%. Coastal cities in the garbage in the plastic component is higher, up to 8-10%. These waste
Plastic in the proportion of garbage if calculated by volume, has reached more than one-third, and greatly increased
The difficulty and cost of waste disposal.
Because waste plastic is difficult to degrade for hundreds of years, if discarded in the natural environment, mosquitoes, flies and
bacteria to provide a breeding ground for survival; if buried in the ground, it is easy to contaminate the groundwater, impede the growth of plant roots
Systems, destroying the quality of the soil, affecting the crop yield; if incineration by fire, will produce a variety of toxic gases
Body. "White pollution" has become a major environmental hazard in our society, seriously hampering the sustainable development of our country's
economy and environment.
Currently, the annual consumption of disposable tableware in China is about 10 billion, mainly foamed plastic products, to prohibit
stop the production and sales of these large quantities of disposable foamed plastic tableware, we need to develop and produce alternative
supplies, green disposable tableware came into being. Experts believe that the development
and production of green disposable tableware is becoming China's new environmental protection industry.
In mid-December, the Ministry of Science and Technology, in conjunction with the State Economic and Trade Commission, the State Environmental Protection Administration, the Ministry of Railways jointly convened a green disposable tableware technology development and exchange meetings, at which the reporter interviewed the head of the China Rural Technology Development Center
Wang Zhixue, as well as several producers of business managers.
Wang Zhixue said: China's development and production of green disposable tableware according to the type of raw materials, can be divided into paper
pulp, rice husk, straw and starch. China's existing hundreds of enterprises to produce paper disposable tableware,
Annual production capacity of about 3 billion.
Paper tableware raw materials in the production process of serious pollution, high cost, and its own strength and waterproof and wet
poor, therefore, its popularization and application of greater limitations, people will naturally look elsewhere
place to science and technology to benefit. Such as rice husk as raw materials for the production of rice husk tableware, China now has more than a dozen of this
type of enterprise, the annual production capacity of about 150 million; straw tableware to crop straw as the main
raw materials, China now also has more than a dozen manufacturers, the annual production capacity of 75 million; starch tableware to potato
starch as the main raw material, it is good degradation, the recovery can do feed. Recycling can be done after the feed. In a word, the country attaches great importance to the research and development of green disposable tableware, through scientific and technological research, Spark Plan, Torch Plan and other scientific and technological development
Development plan to give strong support, many enterprises of the production of green disposable tableware technology has been relatively mature, with
prepared for the foundation of industrialization.
Wuhan Far East Green World Group is to starch as raw material, green disposable tableware technology
Technological research and development, the economic benefits of the company's beginning to take shape. The company's president Su Xiaohai's experience is quite legendary:
He originally studied arts and crafts in Hubei Light Industry Institute, Wuhan University in 1984 to read a master's degree in philosophy
degree, and then study and work in Germany, Europe's environmental protection has touched him a great deal, and then gave birth to return to China to engage in
environmental protection industry idea. Su Xiaohai told reporters: I studied arts and crafts, is a bit of aesthetics, I today
day into the green tableware such as environmental protection business, is the beginning of my initial understanding of the beauty; and aesthetics of the extension
extension of the end of the day is also a philosophy.
Between 1992 and 1996, the Far East Green World Company developed recycled cardboard disposable tableware and reed pulp
molded food and beverage utensils due to the lower technological content and other reasons, the scale of production has not been able to expand. 1996, the company
sent officers to study the European market biodegradable packaging supplies technology, that the development of plant starch production
The company has been working to develop the production of fully degradable packaging products, and has been able to develop the production of biodegradable products.
Total degradation of disposable tableware products may be a way to eliminate "white pollution". 1997, by a group of food
products, chemical, mechanical experts, the company focuses on investment in the development of a total degradation of disposable food and beverage products, the project
included in the 1997 National Torch Plan project. project.
They absorbed foreign advanced technology, combined with the domestic production process of paper tableware for a series of innovations: the use of
with domestic resources of sweet potatoes, corn and other starch as the main raw material, instead of a single foreign higher-priced
Potato starch; in the raw materials of sweet potato starch increased by 20% of natural fibers, so that catering products increase the strength of the obvious
The company also used foodstuffs and food products to develop a new product line, which was developed by the company.
degree, and then the use of food puffing processing technology to make products with light weight and softness; increase the strength of the surface spraying
processing and shaping equipment, so that the production of food and beverage supplies with waterproof, oil, heat-resistant features and so on. Su Xiaoxiao
Hai made a vivid analogy: it is like the reinforced concrete in the building materials, sweet potato starch is that cement, and
chopped and stirred into the various hay and plant roots and stems is that reinforced steel, so as to make the tableware strength obviously
enhanced.
The starch-based tableware products produced by Far East Green World, commissioned by the German SGS organization with reference to the international food
packaging standards for testing, filling in hot water at 100 degrees Celsius and hot oil for more than two hours without deformation, keep
temperature performance is excellent. Because the starch and additives are natural plant materials, the product degradation performance is excellent, by the National Environmental
Environmental Testing Center test shows that about 10 days can be degraded by more than 90%, within a month can be completely degraded.
It is reported that, because the project uses plant starch and plant fiber, the cost is low, each with a lid lunch
box cost about 0.12 yuan, no lid lunch boxes and bowls, trays cost about 0.07 yuan, has a broad market prospects.
At present, the Far East Green World Company intends to invest 160 million yuan to build a large-scale fully degradable green disposable tableware production base with an annual output of 5 billion pairs of disposable chopsticks, 3.5 billion various types of
bowls, trays, boxes and other products, and the project, when it reaches production, will be able to
add an annual output of 625 million yuan, and new profits and taxes of about 130 million yuan. The civil engineering of the base has been started in March this year,
has built a standard workshop of 20,000 square meters, if the follow-up funds can be guaranteed, it is expected that the end of 1999 can reach production.
Su Xiaohai said: our scientific and technological advantages are obvious, the future can create the social benefits are also obvious: with starch
made disposable hygiene chopsticks, its functional indicators can completely replace the disposable wooden chopsticks, and only this one, that is
could be the country each year, saving nearly 500,000 cubic meters of timber resources; the group if you can reach the production, it is estimated that each year, we need to use 200,000 tons!
More than 200,000 tons of sweet potatoes are processed into more than 100,000 tons of starch raw materials, which can also lift more than 100,000 people out of poverty in poor areas and promote
the development of agricultural industrialization in old areas.
Shantou Green Heng Industrial Co., Ltd. from the previous few years, the rice husk system of green disposable tableware development, at present
previously also has a preliminary industrial scale production capacity, the company produces a disposable packaging containers made of rice husk, especially
particularly to provide the use of supermarkets and other products such as food packaging containers, has begun to test market Japan, Taiwan, the United States and so on
The company has also started a trial run in the United States and other countries.
The company has already begun trial sales in Japan, Taiwan, and the United States.
The green disposable tableware produced by Green Heng is made by crushing and sifting rice husk, then mixing it with several edible organic
macromolecule bonding agents and water, and then going through the process of stamping and molding, drying, and spraying to produce different shapes of
plates, bowls and other utensils.
Ji Xiaopeng, general manager of Green Heng Business Co. Ltd, said: disposable tableware made from rice husk is not only inexhaustible in our country's rich
resources, but also can be quickly degraded in the soil after it is used, which can be said to be two birds with one stone.
Green Heng has a production line in operation, its investment is about 9.8 million yuan, production capacity of 400,000
tableware/day, currently up to 200,000 tableware/day. Annual output value of about 36 million yuan, the expected payback period of about
one and a half years, investment profit of about 30%, production technology and product quality has passed the Guangdong Provincial Science and Technology Commission organized
Technical appraisal and food hygiene departments of the test. According to reports, the company in order to better market the product, regulation
model operation, intends to set up a group of companies in the near future, and to invest in technological transformation, with a view to making the production
line of higher degree of automation.
According to the Ministry of Science and Technology held under the auspices of the green tableware technology development exchanges, July 18, 1998, Wen Jiabao
Vice Premier of the Taihu Lake Basin Water Pollution Prevention and Control Conference, specifically to solve the Yangtze River, Taihu Lake,
Railway along the "white pollution", and asked the relevant departments of the State Council to focus on three key areas of work. The relevant departments of the State Council were asked to focus on three tasks, one is to strengthen the management,
prohibit littering; the second is to stop the use of disposable foamed plastic tableware; and the third is to develop and mass produce alternatives as soon as possible
Products. The issue of promoting the application of alternatives. It seems that the green disposable tableware has caused the central leadership
comrades and science and technology, environmental protection and other relevant departments attach great importance to it as a new environmental protection industry, can be described as
born and just in time, now, both the need to climb the peak of science and technology personnel to continue to engage in research and development
Development, the need for us to understand the business, good management of entrepreneurs to increase Technological innovation and market development, but also need me
the visionary financiers, venture capitalists, give green disposable tableware industrialization to sufficient
enough capital investment.
China's green disposable tableware development and industrialization of most of the enterprises are currently smaller production scale, the ability to resist the wind
Weak, and many of them are private enterprises, the need for government departments to give enough industrial policy
Support and guidance, a better start, so that the emerging green industry can be healthy, sustainable development
Development.
Development.