【實(shí)用】保護(hù)環(huán)境英語(yǔ)作文三篇
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保護(hù)環(huán)境英語(yǔ)作文 篇1
Marine lives in fish and all kinds of chemical substances,is very important for human.But many people like throwgarbage into the sea,the sea will pollution.Cause fishdeath,water depletion.We should keep our environment,to protect the beautiful sea.
海洋里生存著魚(yú)和各種化學(xué)物質(zhì),對(duì)人類很重要.但是許多人類喜歡向海里投垃圾,海水就會(huì)污染.導(dǎo)致魚(yú)兒死亡,海水枯竭.我們應(yīng)該保持環(huán)境,一起保護(hù)美麗的大海.
保護(hù)環(huán)境英語(yǔ)作文 篇2
There are many diseases that are harmful to human health and even threaten human life. Human into the 21st century, the world has occurred in the number of amazing changes. In the people for the rapid development of science and technology, but also experienced a better anxiety and even disaster. In addition to the panic of the development of high-tech, especially biotechnology, war and disease seem to bring mankind directly to the door of hell.
Water pollution on the human body harm, the body in the process of metabolism, with drinking water and food, the water of various elements through the digestive tract into the various parts of the body. When the lack of water in some of the human life process necessary elements, will affect human health. For example, in some areas of water iodine deficiency, long-term consumption of this water, it will lead to "big neck disease", is the medicine called "endemic goiter." When the water contains harmful substances, the greater harm to the human body. Carcinogenic substances can be consumed by eating contaminated food (food, vegetables, fish, etc.), into the human body, but also through the water into the human body. According to the survey, drinking contaminated water, suffering from liver cancer and gastric cancer and other cancer incidence, than drinking clean water is about 61,5% higher. When the sewage contains mercury, cadmium and other elements into rivers and lakes, the aquatic plants put mercury, cadmium and other elements to absorb and enrich them, fish eat aquatic plants, and in its body to further enrichment, people eat poisonous Fish, mercury, cadmium and other elements in the human body enrichment, so that the human body and death. In this way, from the aquatic plants → aquatic small animals → small fish → big fish → the body, forming a food chain. The body eventually became mercury, cadmium and other elements of the "foothold."
Water pollution hazards to aquatic organisms Water lives in a variety of aquatic animals and plants. Biological and water, between biological and biological complex material and energy exchange, from the number to maintain a dynamic balance. But under the influence of human activities, this balance has been destroyed. Some of the beneficial aquatic organisms are poisoned when humans release pollutants into the water, and some of the stained aquatic organisms will multiply, consume a lot of oxygen dissolved in the water, so that the beneficial aquatic life is forced to relocate due to hypoxia Or death. In particular, some toxic elements, both difficult to dissolve in water and easy accumulation in the body, causing great harm to humans. Such as mercury in the water content is very low, but the content of aquatic organisms is very high, the content in the fish is also surprisingly high. Assuming that the concentration of mercury in the water body is 1, the concentration of mercury in the aquatic organisms is about 700, and the concentration of mercury in the fish is as high as 860. Thus, when the water is contaminated, on the one hand led to biological and water, biological and biological balance between the damage, on the other hand some of the toxic substances continue to transfer and enrichment, and ultimately endanger human health and life.
保護(hù)環(huán)境英語(yǔ)作文 篇3
In recent years there has been a marked growth of fire accidents in big cities of our country. Almost every day we see fire engines rushing through the streets. Fires have not only resulted in heavy economic losses but also injured and killed many people.
What are the causes of fire accidents? Most of the fires are brought about by carelessness and violation of fire safety regulations.
Others are due to the poor quality of home electrical appliances. By the way, some people don't know how to use them properly. Besides,there are quite a few businesses which focus so much of their attention on profits that they tend to neglect and even ignore fire precautions.
In my opinion, in order to prevent fires we should first of all foster people's sense of fire prevention. The second thing we have to do is to increase the number of professional fire fighters, to whom regular training courses should be offered. Finally, we are to improve the existing fire engines and add more fire facilities to high-rise buildings. In this way, a reliable fire prevention system will be formed.
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