1.求一篇名為“The water cycle”的英語作文,不要太長80詞左右,簡單
which leads to temperature changes. For instance, in the process of evaporation, water takes up energy from the surroundings and cools the environment. The water cycle figures significantly in the maintenance of life and ecosystems on Earth. By transferring water from one reservoir to another, the water cycle purifies water, replenishes the land with freshwater, and transports minerals to different parts of the globeThe water cycle describes the continuous movement of water on, above and below the surface of the Earth. The water cycle also involves the exchange of heat energy。
2.寫一篇高中英語書面表達有關watercycle
We know that: In this modern * and more Ecological problems has been made by people's *ally the lack of air and water resourses. So how to solve these problems?It makes many scientists to use most of time to create a new way to solve it. * should say sth abt the watercycle first. It's a way to protect the water resourse on earth so that people will still to carry out their normal lives and labor. It took the scientists all around the world a long time to research and do lots of expriments to make this conclusion to solve the lack of water resourse. Environment around the earth has became more and more bad if we still use a various of the earth resourses * will hurt ourselves at the last. So if we want to live healthily and * we wanna give a better living environment to the next generation. We have to protect and save the water and so many other recourses to let them operation as *nly it's good for ourselves. Why we don't do like this? 沒檢查, lz做參考吧。
3.用英語簡單描述水的循環過程
in the hydrosphere: ground water evaporated by the sun as water vapor in the air, water vapor transport, precipitation, infiltration, runoff and underground links. Definition 2 in solar and earth surface under the action of heat energy, the water on the earth has been evaporated into vapor, into the atmosphere. Steam cooled and condensed into water, under the action of gravity, with precipitation in the form of fall to the ground to go round and begin again, this process, called the water cycle. Definition 3 water circulation refers to the nature of water through evaporation, transpiration, runoff, atmosphereWater circulation refers to the water by the earth in different places through absorption of solar energy transformation mode of existence brought to earth in other places, such as。
*'s water cycle
The Earth's water is always in movement, and the water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above, and below the surface of the Earth. Since the water cycle is truly a "cycle," there is no beginning or end. Water can change states among liquid, vapor, and ice at various places in the water cycle, with these processes happening in the blink of an eye and over millions of years. Although the balance of water on Earth remains fairly constant over time, individual water molecules can come and go in a hurry.。
5.哪個科學家 什么時候發現了地球上的水循環 (water cycle)?
水循環是指水由地球不同的地方透過吸收太陽帶來的能量轉變存在的模式到地球另一些地方,例如:地面的水份被太陽蒸發成為空氣中的水蒸汽。而水在地球的存在模式包括有固態、液態和氣態。而地球的水多數存在于大氣層中、地面、地底、湖泊、河流及海洋中。水會透過一些物理作用,例如:蒸發、降水、滲透、表面的流動和表底下流動等,由一個地方移動至另一個地方。如水由河川流動至海洋。
定義2 :在太陽能和地球表面熱能的作用下,地球上的水不斷被蒸發成為水蒸氣,進入大氣。水蒸氣遇冷又凝聚成水,在重力的作用下,以降水的形式落到地面,這個周而復始的過程,稱為水循環。
定義3 :水循環是指大自然的水通過蒸發,植物蒸騰,水汽輸送,降水,地表徑流,下滲,地下徑流等環節,在水圈,大氣圈,巖石圈,生物圈中進行連續運動的過程。
2.主要作用
水是一切生命機體的組成物質,也是生命代謝活動所必需的物質,又是人類進行生產活動的重要資源。 地球上的水分布在海洋、湖泊、沼澤、河流、冰川、雪山,以及大氣、生物體、土壤和地層。水的總量約為1.4*1013 m3,其中97%在海洋中,約覆蓋地球總面積的70%。陸地上、大氣和生物體中的水只占很少一部分。
水循環的主要作用表現在三個方面:
① 水是所有營養物質的介質,營養物質的循環和水循化不可分割地聯系在一起;
② 水對物質是很好的溶劑,在生態系統中起著能量傳遞和利用的作用;
③ 水是地質變化的動因之一,一個地方礦質元素的流失,而另一個地方礦質元素的沉積往往要通過水循環來完成。
地球上的水圈是一個永不停息的動態系統。在太陽輻射和地球引力的推動下,水在水圈內各組成部分之間不停的運動著,構成全球范圍的大循環,并把各種水體連接起來,使得各種水體能夠長期存在。海洋和陸地之間的水交換是這個循環的主線,意義最重大。在太陽能的作用下,海洋表面的水蒸發到大氣中形成水汽,水汽隨大氣環流運動,一部分進入陸地上空,在一定條件下形成雨雪等降水;大氣降水到達地面后轉化為地下水、土壤水和地表徑流,地下徑流和地表徑流最終又回到海洋,由此形成淡水的動態循環。這部分水容易被人類社會所利用,具有經濟價值,正是我們所說的水資源。
水循環是聯系的球各圈和各種水體的“紐帶”,是“調節器”,它調節了的球各圈層之間的能量,對冷暖氣候變化起到了重要的因素。水循環是“雕塑家”,它通過侵蝕,搬運和堆積,塑造了豐富多彩的地表形象。水循環是“傳輸帶”,它是地表物質遷移的強大動力,和主要載體。更重要的是,通過水循環,海洋不斷向陸地輸送淡水,補充和更新新陸地上的淡水資源,從而使水成為了可再生的資源。
6.關于”水”的英文資料或英語短文
Earth\'s water is always in movement, and the water cycle, also known as the hydrologic cycle, describes the continuous movement of water on, above, and below the surface of the Earth. Since the water cycle is truly a \"cycle,\" there is no beginning or end. Water can change states among liquid, vapor, and ice at various places in the water cycle, with these processes happening in the blink of an eye and over millions of years.
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