能的来源高中英语作文
nearly all energy comes from the sun, either in a roundabout① way or straight from it, in the form of heat rays and light rays. the light from the moon, too, comes from the sun. the moon can be said to be like a large mirror which throws back the suns light to the earth.
electrical energy comes from the sun in a roundabout way, e.g.②, it can come from the power of water falling down a mountainside③. the water fell there as rain, and we know that rain is made by the suns heat evaporating the water on the earths surface. this water vapour rises, condenses④ on cooling, and falls as light and heat energy from coal also comes from the sun in a roundabout way. coal was made by the rocks pressing on trees and plants which died millions of years ago. those trees and plants grew with the aid of sunlight, from which they made carbohydrates⑤, in this way changing the suns energy into chemical energy. when we burn coal, some of this energy is set free.
energy which we use to drive car engines comes from petrol⑥,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 petroleum⑦,from which petrol and oil are now obtained.
thus we can say that the is the place where nearly all energy comes from, and that without the suns heat and light, there could be no life on earth.
-
抹不去的思念作文合集九篇
在平凡的学习、工作、生活中,大家都有写作文的经历,对作文很是熟悉吧,作文是人们把记忆中所存储的有关知识、经验和思想用书面形式表达出来的记叙方式。那么,怎么去写作文呢?以下是小编帮大家整理的抹不去的思念作文9篇,仅供参考,大家一起来看看吧。抹不去的思念作文...
-
学习的作文[优秀9篇]
在平平淡淡的学习、工作、生活中,大家都经常接触到作文吧,作文要求篇章结构完整,一定要避免无结尾作文的出现。作文的注意事项有许多,你确定会写吗?以下是小编为大家收集的学习的作文10篇,仅供参考,欢迎大家阅读。学习的作文篇1“学习雷锋好榜样,忠于革命忠于党。爱憎...
-
实用的叙事作文300字(集锦6篇)
在学习、工作或生活中,大家总少不了接触作文吧,作文是从内部言语向外部言语的过渡,即从经过压缩的简要的、自己能明白的语言,向开展的、具有规范语法结构的、能为他人所理解的外部语言形式的转化。还是对作文一筹莫展吗?下面是小编为大家收集的叙事作文300字6篇,供大...
-
【精选】健康成长作文合集7篇
在学习、工作、生活中,大家都写过作文,肯定对各类作文都很熟悉吧,作文是经过人的思想考虑和语言组织,通过文字来表达一个主题意义的记叙方法。那么你知道一篇好的作文该怎么写吗?下面是小编精心整理的健康成长作文7篇,欢迎大家借鉴与参考,希望对大家有所帮助。健康成...