帮忙写一篇关于登山的好处英文作文

（一）
　Mountain which in the end benefit from it? Tourism is both a sport climbing, can increase lung capacity, enhance blood circulation and blood flow. Moreover, as altitude increases, air and hydrogen ion concentration of negative oxygen ions will be more and more, can reduce blood sugar, hemoglobin and anemia increased the number of red blood cells. Of asthma and other respiratory diseases also can play the role of adjuvant therapy. However, the lower spring temperatures climbing to avoid the early morning and evening, the park should pay attention to change clothes to meet the temperature, climbing slowly, especially the frail, have high blood pressure, heart disease, can not figure quickly, can not climb more competition, not only will easily sprained foot, will strain the knee and leg muscles.
　　
　　Valley air in very high levels of negative oxygen ions per cubic centimeter of up to twenty thousand more than in other parts of the content of the outskirts of the wilderness as 700 to 1,000, 400 to 600 park a street Green Belt 100-200, room 40 to 50 large cities, densely populated public places is minimal. Negative oxygen ions in the air known as "air vitamins." This ion can promote the activities of human cells, regulating the nervous system excitability, inhibition, and enhance brain function, improve blood circulation, promote metabolism, increase body immunity. Contact and inhalation of a large number of negative oxygen ions on the human body is undoubtedly useful. Walking or lying down, sitting under the trees and shade on top, suddenly will feel the fragrance of the air Qinru lungs, all the troubles vanished. It has been estimated, a hectare of lawn one hour to absorb one kilogram of carbon dioxide, reducing the ten to twenty db noise, absorb 70% of solar radiant heat, an acre of forest absorbs 67 kg of carbon dioxide every day. So in the green environment, can rapidly improve the brain hypoxia, brain get enough oxygen, enabling the brain's strong, and enhance brain function, improve the analysis and judgments, thinking ability, to reduce the burden on the heart, enhanced olfactory, visual, auditory sensitivity.
　　
　　Mountain tourism on human health have a multifaceted role, exposure to fresh air, people clearing the lungs and spleen, Panfeng CROSSLINE can Shujinhuoxue aging, Fleet of Foot brisk walking can promote blood circulation, prevent atherosclerosis, look overlooking can broaden their horizons, to postpone aging eyesight, you can also enjoy the beauty of nature, people feel happy, comfortable, fun to relieve anxiety, yardsticks, access to knowledge, promoting metabolism, robust body.
（告诉我们登山带给人们的健康和美好心情）
（二）　　
　　　Last week our class went to climb hills. It was my first time. I thought it would be easy to get to the top of the hill. Then I came to know I was wrong. With the help of my classmates, I got to the top. I was very happy.
(告诉我们,登山难以及成功的喜悦）
(注：上第一篇文章每一小分段可作为一篇小文章,都很优秀的,给你借鉴）