我们怎样保护地球英语作文【一】
古往今来，地球妈妈用甘甜的乳汁哺育了无数代子孙。原来的她被小辈们装饰得楚楚动人。可是，现在人类为了自身的利益，将她折磨得天昏地暗。人类只有一个地球；而地球正面临着严峻的环境危机。“救救地球”已成为世界各国人民最强烈的呼声。
在现在的这个社会环境受到了极度的污染，我们人类也受到了极大的危害，这些都是由谁制造的呢？很多人都会说肯定不是我们，和我们没什么关系，可是往往有很多的人也都是嘴巴上说没有，可是心里不是这样想的，他们会想丢一次不会有什么大碍的`，反正很多人都是随地乱扔的，而偏偏这些环境破坏都是我们人类一手造成的，我们人类在森林里拿着大斧子胡作非为，砍这砍那的，树木变少了，动物没地方居住而渐渐都死了，空气也变得不清鲜了。
现在的地球，都是黄色，绿色大量减少，这是怎么了？原来这是因为人们大量的砍伐树木，这不仅让鸟儿没了家，还造成了崩塌，洪水等。没有了树，我们的地球就好像少了一根支撑的梁柱。以前小河清澈见底，能看见小鱼，现在工厂为了提高效率，竟把小河当成了排放污水的好地方，小河被污水弄得肮脏不堪，过路的行人都飞快的离开。渗入地下时污染地下水或江河湖泊；一旦进入土壤水源，将会通过食物链进入人体，损害人的神经系统、造血功能、肾脏和骨骼。
同学们，我们离不开赖以生存的地球，共同的命运把我们联系在一起，大自然叔叔多么盼望它能回到家园，地球母亲把重任托付在人类的身上，因为只有我们才能挽回地球和人类的幸福：让绿色不再叹息，大自然不再哭泣，让地球母亲的伤痕消失，让明天的地球更加美丽、坚强、可爱！
我们怎样保护地球英语作文【二】
the sun rises in the east and sets in the west, which is caused by the rotation of the earth as you all know. but have you ever thought of the effect of the earths rotation on man and can you imagine what would happen if the earth stopped rotating?
the radius of the earth is about 6,370 kilometres. it takes the earth 24 hours to rotate once. objects on the earths equator move with the earth at a speed of 460 metres per second, and the air close to the earths surface turns at the same speed. if the earth stopped rotating suddenly, the air would keep flowing eastward at a speed of 460 metres per second. the wind would be fourteen times as powerful as a hurricane. at the same time sea water would rush eastward at a speed of several hundred metres per second, which might do damages much greater than a seaquake would do. obviously, men could hardly stand such a catastrophe.
even if such a catastrophe would not happen, there would be a great temperature difference on the two hemispheres of the earth, and the four seasons of the year would no longer occur because a day and a night would be as long as a whole year instead of 24 hours. all this would greatly affect the life of human beings, imals and plants and that would cause worse results than anything imaginable.
