The way of life of human beings will not change much 211,111 years ago compared with 1 million years ago; Compared with 2111 years ago, there will not be much change before 3111; Compared with 511 years ago, 611 years ago will not change much. However, today's people and the ancients are actually not what they used to be, even now compared with 111 years ago, they are completely different. What has promoted the development of human history? What made mankind start a new way of life? ?

I said, this is science and 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 makes mankind have this brand-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, the four great inventions are unique; Look at the astronomical calendar and marvel at it; Look at Zhaozhou Arch Bridge, with exquisite design; A glimpse of Compendium of Materia Medica, an oriental masterpiece; Look at the value of pi, seven decimal places; Overlooking the Silk Road and developing the economy; The blue-and-white porcelain ware is famous overseas. Scientific and technological development is the road to a strong country, and it is the first driving force for the progress of the Chinese nation. Without science, how can we live a happy life today? Without science and technology, how can we have a comfortable material life and spiritual enjoyment? Without the progress of science and technology, how can we eat hybrid 2? How can we put on cotton clothes and live in tall buildings? ?

q, is the development of science and technology more beneficial or harmful? Undoubtedly, it is of course Lida! What is the explanation? No need to explain! The 8,111-year history of Chinese civilization is irrefutable evidence. History is changing all the time, and technology is developing all the time. Humans learn to use or cook food from primitive life, from relying on nature to breeding, from unarmed to metallurgical smelting. Isn't this progress, isn't this development? If the disadvantages outweigh the advantages, then why do human beings choose progress in unison? Only progress can make tomorrow better! ?

it's sad that a person doesn't make progress, a country doesn't make progress and it's declining, and a world is dark without progress. Only through continuous progress can human life be sublimated. Man is small, man is fragile, he has no huge body, no strength like an ox, and no hard shell of a turtle. However, God has given human beings a smart brain and a pair of hard-working hands. Instead of enjoying the success, human beings have chosen continuous progress to stand at the top of the food chain today. ?

Let's compare today's life with that of 111,111 years ago. We are supreme. Comparing today with thousands of years ago, we are condescending; Comparing today with hundreds of years ago, we are happy and comfortable; Comparing today with tomorrow, the future is bright. For thousands of years, it has changed from a carriage to a car, train and plane; From kerosene lamps to incandescent lamps, neon lights and energy-saving lamps; From the ends of the earth to close at hand, video chat and mouse know everything about the world. ?

We are happy. We are lucky. We have caught up with an era of rapid development of science and technology, an era full of high technology. This is not only because our ancestors chose development and progress in evolution, but also because of all people's unremitting efforts and hard study. How many hard-working scientists have exchanged their wisdom and even their lives today. ?

Because of Faraday, our life is full of all kinds of electrical appliances. Because of Darwin and Mendel, we can better understand ourselves and know ourselves; Because of Bian Que, because of Hua Tuo and because of Li Shizhen, our lives can be guaranteed. ?

didn't they buy everything around us? Life is so comfortable, life is so pleasant and life is so wonderful. Our average life expectancy is 31 years higher than that in ancient times, and we don't even have to go out to visit relatives and friends. Isn't this all the benefits brought by the development of science? ?

Therefore, science and technology have changed history. It is not necessary to question whether the development of science and technology is beneficial or harmful, because it is beneficial! Lida! Lida! You said that the development of science and technology has brought air pollution, you said that the development of science and technology has produced white garbage, and you said that the development of science and technology has caused the warming of the temperature ... Everything can't be perfect, and the brighter the place, the darker the shadow behind it, but on this basis, you can conclude that the disadvantages of science and technology development outweigh the advantages? “? Different times lead to different problems. Besides air pollution, all provinces and cities have launched preventive plans. White garbage, unified treatment; Automobile exhaust causes the temperature to warm, and scientists have also developed solar-powered cars. Look at the present, solar water heaters, solar air conditioners, solar cells ... environmental protection and conservation of solar energy has gradually entered thousands of households, isn't this the development of science and technology? ?

Although there are drawbacks, compared with the concept of scientific and technological development that benefits mankind and protects the home, it is irrelevant. As long as there are drawbacks, scientists will also try to solve them. We can't give up eating because of choking, and the pace of scientific and technological development will never stop. There is nothing wrong with the development of science and technology, that is, to benefit greatly, which is the only answer to this argument! Just because science and technology have been advancing, science has been developing, and cunning sophistry, general words, and unreasonable pestering can't change this truth. If you say that the development of science and technology does more harm than good, can you come to class without a car, a gel pen, a ballpoint pen and a pen within a week? Can you stop watching TV, listening to the news, reading newspapers, reading books and surfing the Internet for a week? Can you not eat the developed hybrid rice for a week? No pasta? No drinks? You can't, you can't and you can't, because technology is closely related to you, and it is inseparable from you! Now, if you write to the chairman and suggest stopping all scientific research activities, will everyone give you flowers or will the board shoot you exclusively? ?

It is true that science and technology have changed history. Without the development of science and technology, our life would be unimaginable. Our days were dark. It was the development of science and technology that saved us, and it was science that saved us from the fiery age of water. We should respect him with a heart of awe. How can we say that the development of science and technology is full of drawbacks? ?

technology changes history, and knowledge changes destiny. We have entered the 21th century and an era full of high technology. Science has changed our lives, and science has changed our destiny. "Knowledge is power?" , we Chinese people * * * and China, a vast country with a population of 1.3 billion, why can we stand up in front of the world? Because our technology is constantly developing! Our technology is constantly improving! ?

the advantages of scientific and technological development outweigh the disadvantages, which is an eternal theme!

Refute

How many amazing changes have taken place in the world since mankind entered the 21th century. While people are delighted with the rapid development of science and technology, they have experienced better uneasiness 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 gate of hell. ?

The epidemic of SARS in p>2113, including all the speculations about SARS, is directly related to the global issue that people are increasingly concerned about: biosafety. Biosafety is a scientific and technological system for the detection, evaluation, monitoring, prevention and treatment of biological hazards. It is a new frontier discipline that studies the impact of various biological factors on human health and applies existing theoretical knowledge, technology, engineering design and equipment to prevent people engaged in related work, laboratories and the environment from being harmed by potentially infectious substances and biological toxic substances. Biosafety problems are at least manifested in the following aspects:

the great harm of infectious diseases?

Infectious diseases include human, animal and plant infectious diseases, especially human infectious diseases, which are the most important biosafety problem. Infectious diseases are still the first cause of death in the world. In China, infectious diseases still seriously threaten 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 or erupting in some parts of the country and some countries and regions in the world every year?

what are the potential threats of biological weapons and bioterrorism?

in the 21th century, the whole international community made unremitting efforts to ban biological weapons and made some progress. However, in the 21th century, the potential threat of biological weapons has greatly increased, and some countries and regions may continue to research and develop biological weapons. In addition, the rapid development of biotechnology has greatly increased the potential threat of biological weapons, and the bioterrorism marked by the "anthrax incident" in the United States has posed a real threat to international security. Yuan Guoyong, 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, and the characteristic of this virus is that it is easy to recombine with other virus genes and then 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, and this virus is prone to mutation and extremely dangerous. Therefore, Yuan Guoyong believes that SARS virus has great potential to become the pathogen of making chemical and biological weapons except smallpox. ?

what are the negative effects of biotechnology?

The negative effects of biotechnology are as follows: First, unexpected safety problems may occur when people develop and utilize biotechnology. Just as the harm to biodiversity caused by the environmental release of various genetically modified living organisms is widely concerned at present. In addition, genetically engineered drugs, vaccines, genetically modified foods, gene therapy, etc. may have similar problems. The misuse and unethical application of biotechnology may also bring great security risks. The research 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 damage to national interests. The environmental release of genetically modified organisms poses a great threat to biodiversity. ?

what are the 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 their health. Omissions and accidents in the management of microbiology laboratory can not only lead to the 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 not uncommon. In severe 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 big proposition that affects the politics, economy, security and peace of the whole country and 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 are often seen in government or non-governmental organization documents and in various media. The global epidemic of SARS will undoubtedly make countries all over the world pay more attention to biosafety and regard it as an integral part of national security. ?

with the development of economy, the acceleration of people's living pace and the improvement of living standards, what is the amount of plastic?

increasing day by day. In 1996, the consumption of plastic packaging in China reached 2.43 million tons, with an average annual growth rate exceeding?

21%, especially in cities, along major traffic routes and tourist attractions, plastic waste is increasing rapidly.

Disadvantages: As mentioned above, each of us has a higher and farther vision, which makes us see what is higher in the distance, explore and pursue, and ignore what we should do in front of us. Just like some monarchs in history who want to live forever, drugs are used to treat diseases, and as a result, they blindly invest in something impossible, and as a result, they harm themselves and the people, and there is a macro that people now see in movies. For example, if every?

the development of science and technology has brought people convenience and disaster. Leon: We can go where we want to go. People are constantly exploring, and in the future, the association of Sun Center may be overthrown. With the development and progress of science and technology, no one can enjoy what those historical figures can't enjoy. Every newcomer is interested in this world with the development of economy, the acceleration of people's living pace and the improvement of living standards, and the amount of plastic.

increasing day by day. In 1996, the consumption of plastic packaging in China reached 2.43 million tons, with an average annual growth rate exceeding?

21%, especially in cities, along major traffic routes and tourist attractions, the 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%, with an annual increase?

the growth rate reached 48%. The plastic content of garbage in coastal cities is higher, reaching 8-11%. These wastes?

if the proportion of plastics 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 breeding; If buried underground, it is easy to pollute groundwater and hinder plant roots?

line growth, destroying soil quality and affecting crop harvest; If it is burned by fire, it will produce a variety of toxic gases.

body. "white pollution" has become a major public hazard that harms China's social environment and seriously hinders China?

sustainable development of economy and environment. ?

At present, the annual consumption of disposable tableware in China is about 11 billion pieces, mainly foamed plastic products. Should it be banned?

to stop producing and selling these disposable foamed plastic tableware, it is necessary to develop and produce their substitutes?

Articles and green disposable tableware came into being. Experts believe that the development of green disposable tableware?

and production are becoming a new environmental protection industry in China. ?

In mid-February, the Ministry of Science and Technology, the State Economic and Trade Commission, the State Environmental Protection Administration and the Ministry of Railways jointly held the Green One?

At the second tableware technology development exchange meeting, the reporter interviewed the person in charge of China Rural Technology Development Center?

managers of Wang Zhixue and several production enterprises. ?

Wang Zhi said: At present, the green disposable tableware developed and produced in China can be divided into paper and paper according to the types of raw materials.

pulp, rice husk, straw and starch. There are hundreds of enterprises in China that produce paper disposable tableware.

the annual production capacity is about 3 billion. ?

The raw materials of paper tableware are seriously polluted in the production process, with high cost, and their own strength, water resistance and moisture resistance?

sex is poor, therefore, its popularization and application have great limitations, and people naturally look to other places.

, to benefit from science and technology. If rice husk is used as raw material to produce rice husk tableware, there are more than a dozen such tableware in China.

type enterprises, with an annual production capacity of about 51 million; Straw tableware is mainly based on crop straw?

raw materials, there are more than a dozen manufacturers in China at present, with an annual production capacity of 75 million; Starch tableware is potato?

Starch is the main raw material, which has good degradability and can be used as feed after recycling. In a word, the country is interested in green one?

we attach great importance to the research and development of secondary tableware, which is developed through scientific and technological research, spark plan, torch plan and so on.

the exhibition plan gives strong support, and the production technology of green disposable tableware in many enterprises is relatively mature.

laid the foundation for industrialization. ?