無論是在學(xué)校還是在社會中，大家都有寫作文的經(jīng)歷，對作文很是熟悉吧，寫作文是培養(yǎng)人們的觀察力、聯(lián)想力、想象力、思考力和記憶力的重要手段。那么問題來了，到底應(yīng)如何寫一篇優(yōu)秀的作文呢？以下是小編整理的高中英語作文：煤是怎么形成的，供大家參考借鑒，希望可以幫助到有需要的朋友。
Coal is a kind of important industrial material which is chiefly used as fuel.lt is very valuable in the industrial world.In China,coal mines are largely found in the northwest part of the country.Coal nnderwent many changes before it became the bright and brittle substance Which We now use.During ancient times,when the earth enjoyed a very warm and wet climate,the land was covered with large forests and big plants.As time went on,the ground changed and began to sink a little.These very large numbers of trees and vegetables received the deposit of sand and clay.This layer of sand and clay pressed upon the layer beneath and prevented it from contacting with air.These trees and plants received the pressure and changed their appearance.Generations after generations,as the ground kept gradually sinking,another layer of sand and clay again deposited above the layers that already formed.A great pressure was thus exerted and the peat was changed into the black and brittle substance which is known as coal.
參考譯文：煤是一種重要的工業(yè)材料，主要用作燃料。它在工業(yè)世界中非常有價(jià)值。在中國，煤礦主要發(fā)現(xiàn)在該國西北部。煤經(jīng)歷了許多變化，才變成了我們現(xiàn)在使用的明亮、脆弱的`物質(zhì)。在上古時(shí)代，當(dāng)?shù)厍蛳硎芊浅嘏统睗竦臍夂驎r(shí)，土地上覆蓋著大面積森林和大型植物。隨著時(shí)間的推移，地面改變了，開始下沉了一點(diǎn)。這大量的樹木和蔬菜被沙和粘土的沉積物掩埋，這層砂和粘土壓在下面的層上，防止它與空氣接觸。這些樹木和植物接受壓力并改變了其外觀。幾世紀(jì)后，隨著地面逐漸下沉，另一層砂和粘土再次積聚在已經(jīng)形成的層之上。因此，它們給下面的土層施加了巨大的壓力，于是泥炭變成黑色的脆性物質(zhì)，稱為煤。
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