高一必修二英语单元作文Word格式文档下载.docx

1、 高一必修二英语单元作文1 Look out, there are only concave ground skin, large swaths of forest are cut down, become peoples life wood products. People have been displaced by herds of animals for their own sake. Its not a false fantasy, its a bloody fact. Once upon a time, many animals and plants in the world we

2、re destroyed, and so many animals and plants were endangered. Why? This is all because human beings are cutting trees and destroying the ecological environment, which is the root cause. Land resource is one of the three major geological resources （mineral resources, water resources, land resources）

3、and is the most basic resource and labor object of human production activities. Human land use degree reflects the development of human civilization, but also cause direct damage to the land resources, the main show is unreasonable reclamation plant caused by soil erosion, land desertification, soil

4、 secondary salinization and soil pollution, soil and water loss is particularly serious, but facing the world today and a serious crisis. It is estimated that the amount of topsoil in the worlds arable land is about 23 billion tons per year. Some argue that acid rain is a silent crisis, and the wors

5、t environmental threat weve ever seen, an invisible enemy. This is not alarmist. As industrialisation and energy consumption increase, acid emissions are also increasing, and they enter the air, forming acid rain through a series of functions. Although the red tide has been around since ancient time

6、s, with the rapid development of industrial and agricultural production, water pollution is becoming more and more serious, and the red tide is becoming more and more serious. Since the first report in 1933, there have been 194 large-scale red tides since 11014, including only four in the 1960s and

7、157 in 11010. Oil pollution is very harmful to water quality and aquatic life. The oil that floats on the surface of the water can quickly spread, forming an oil film, which prevents the surface from contacting with air, and reduces the dissolved oxygen in water. Oil contains polycyclic aromatic hyd

8、rocarbons, which can be harmful to human health after the accumulation of aquatic organisms. Sulfur dioxide is mainly produced by burning fuels such as coal and fuel, followed by nature, such as volcanic eruptions and forest fires. Sulfur dioxide is strongly irritant to the conjunctiva and upper res

9、piratory tract of the human body, but can be damaged by inhalation tube and can cause bronchitis, pneumonia and even pulmonary edema respiratory paralysis. In the short term, the mortality rate of the elderly or chronic patients with the concentration of 0.5mg/m3 air is higher and the concentration

10、is higher than 0.25 mg/m3, which can aggravate the condition of the respiratory diseases. The number of people with prolonged exposure to 0.1 mg/m3 of air was increased. In addition, sulfur dioxide can cause corrosion, peeling, fading and damage to metal materials, housing construction, cotton spinn

11、ing fabrics, leather paper and other products. It can also turn yellow or even die. Protecting the environment is everyones responsibility. 高一必修二英语单元作文2 On the night of a full moon, the mother of the earth sighed and asked, whats wrong with you mother earth? The earth mother to tell sister moon bitt

12、er: in the last few years, I for the benefit of the eyes, raising the human children dont know to protect the environment, now I am black and blue, not know that there are a few years of life!I remember that I used to be full of colorful flowers and a faint fragrance, and that was a very delicious s

13、mell.But now, the big chimney smoking every day in the factory, the sky was black smoke hung over. These not only pollute the air in the exhaust, and the whole family of plant and animal life to me is a serious threat, this also includes the human of life! Now human life rich, almost every family bo

14、ught their own cars, car emissions of exhaust gas, let I breathe heavily however, coupled with reckless deforestation, they clearly know a tree is a small oxygen plant, trees can absorb harmful substances in the air, and to the point of hollowing out is deforestation. More let I cant stand is excess

15、ive open arbitrary mining in my body, especially those individual illegal small coal mine, regardless of me artery or vein, install the machine will start, I really cant stand it! Mother earth is now a tearful, poor thing! The sister said, mother earth, you have so many difficulties! I always though

16、t that you have so many children, you will live happily! Speaking of this, mother earth was even more sad, and she burst into tears. You should give your children some color to see, she said. I havent thought about it, how can I have the heart to open a knife to my own child? I really cant do it! Friends, listen to this dia