能的来源高中英语作文初中英语作文范文10篇.doc

能的来源高中英语作文初中英语作文范文10篇nearly all energy es from the sun, either in a roundabout way or straight from it, in the form of heat rays and light rays.thelight from the moon, too, es from the sun.themoon can be said to be like a large mirror which throws back the suns light to the earth.electrical energy es from the sun in a roundabout way, e.g., it can e from the power of water falling down a mountainside.thewater fell there as rain, and we know that rain is made by the suns heat evaporating the water on the earths surface.thiswater vapour rises, condenses on cooling, and falls as rain.the light and heat energy from coal also es from the sun in a roundabout way.coalwas made by the rocks pressing on trees and plants which died millions of years ago.thosetrees and plants grew with the aid of sunlight, from which they made carbohydrates, in this way changing the suns energy into chemical energy.whenwe burn coal, some of this energy is set free.energy which we use to drive car engines es from petrol,which also was made with the aid of the sun in a roundabout way.plants,and animals which ate the plants, died millions of years ago, and the parts of them that were left were pressed under the rocks in the 301earth.these parts left from dead animals and plants made petroleum,from which petrol and oil are now obtained.thus we can say that the is the place where nearly all energy es from, and that without the suns heat and light, there could be no life on earth.第 2 页 共 2 页