I. Research background

China has a long history. In China with a large population, people attach great importance to food culture. A good diet is inseparable from a good cooker. Therefore, it is very important to study cookers. Food is the most important thing for people, and people can't live without food, and food can't live without stoves. Because cookstoves are widely used in daily life, we don't pay much attention to them. We set this topic in order to better understand it and use more suitable cookers.

Second, the purpose and significance of the study

1, understand the development history of human cookers.

2. Let's choose cookware better.

3. Choosing a good cooker can save energy and link the energy crisis.

Third, research methods.

1, our research group will go to the library to consult relevant books as the basis for research.

2. We will also look up information on the Internet and discuss this topic with people on the Internet and in the industry.

3, if necessary, go to other places, visit the nearby farmers' homes and learn more about cooking stoves.

Fourth, the research plan

1. Division of tasks: data collection: Fang,

Finishing information: Yu Guoxing

Written by Huang Yan

2. Step:

(1) Practice: Search for information in the library or online for research.

(2) Thesis: Use relevant information, summarize conclusions and sort out papers.

3. Research requirements:

(1) Open the school computer room, and have access to the Internet, and search information online in spare time.

(2) Open the school library to facilitate access to information.

Verb (abbreviation of verb) student paper

Development history and present situation analysis of stove

Energy is the material basis of human social activities. The progress of human society is inseparable from the development of energy and science. However, the use of energy requires the right tools. Including cookers.

As early as primitive times, our ancestors had already started cooking food with the most primitive stoves. In the Ali area of western Tibet, archaeologists are excavating the cultural remains of a strange civilization with a splendid culture of 700 years, among which many ancient bronze dings with national colors have been unearthed, which is the cooking stove at that time. Development is a necessary development, and every pursuer is eager to move forward. The development of science and technology and the progress of the times have brought great wealth to people, and the cooking stoves have also been transformed and stepped onto a new level. From the mud stove before liberation to the gas stove today. Cooking stoves are always evolving. However, although the stove has brought great benefits to people, it has also brought many unnecessary accidents and great environmental pollution. Because of burning a lot of fossil fuels, the content of carbon dioxide in the air has increased. The resulting greenhouse effect raises the average temperature of the earth's surface. Now scientists all over the world are calling for this problem, but they all ignore the factor of cooking utensils. So this is very worthy of attention.

In most rural areas of China, we use very simple cookers. The energy source is biogas. Biogas has the advantages of simplicity, energy saving and less pollution. It is a new type of energy and brings vitality to the cooker. It can be said that this is also a great progress in the evolution of cookers. In addition, there is a more promising solar cooker, which can use the sun as a renewable energy source, achieving high practical value and making the cooker climb to a new level to some extent. I believe that in the near future, solar cookers will spread all over the society.

With the continuous development of mankind today, people pay more attention to the problems of resource conservation, development and utilization and environmental protection, which requires choosing a good stove. The new cooker is sure to show its unique charm. Therefore, its development prospect is broad and beautiful.

Closing report of intransitive verbs

Inquiry learning is the exercise of life, and this learning process is actually a process of cultivating one's comprehensive ability. With the improvement of people's living standards, people pay more and more attention to food culture, and cookers are constantly evolving to clean, fast and safe products.

Nowadays, with the improvement of the overall living standard, people attach great importance to the choice of stoves. "Beauty", "practicality" and "high safety performance" are all considered. However, energy saving is also one of the problems that cannot be ignored. In China with a large population and relatively scarce resources, it is imperative to save energy. A good cooker can save energy and reduce the waste of resources.

The use of some cookers will pollute the environment. For example, the use of coal stoves will emit a large amount of CO2, which will lead to a general increase in global temperature and the melting of polar glaciers. If this development continues, many coastal cities will be submerged, and the consequences will be unimaginable.

When we choose a good cooker, we should also use it reasonably. "The orange in Huainan is orange and the orange in Huaibei is orange." The same cooker will have different effects in different hands. Tragedy caused by improper use of cooking stoves often happens around us, such as poisoning death caused by gas leakage and fire caused by improper use of fire, which have caused many deaths and property losses.

Contradictions are common in things. The major and minor aspects of contradiction can be transformed. We should look at the problem from the perspective of development, overcome all kinds of disadvantages in cookers with effective means, choose and use them reasonably, and believe that the prospects for the development of cookers are bright.