如果盐类元素不断地输入海洋,那海水不是会变得越来越咸了吗?还好在海洋中的生物会吸收许多的盐类物质,而化学吸附与沉淀作用也会将部分海水中的盐类转入沉淀物形态。根据测试研究发现,海水并没有越来越咸,海水中的盐份并没有在增加。
为什么湖水不是咸的呢?因为蒸气到了空气中的'水份在经由雪,雨以及地下水形成汇集至湖中,写人作文,就成了湖水,而湖水的盐份是海水的几百分之一,所以,我们感觉不到咸味。但是如沙漠里的湖,湖水不断地被蒸发,那么湖水也会像海水一样咸。横跨约旦和以色列的死海,就是闻名于世的咸水湖。
海水中的水估计只有96.5%,其它的3.5%是氯化钾,氯化镁等盐类,根据实验平均有35克盐溶解在每千克海水中,其中氯化钾(盐类)占的比重较大,因为存在大量的氯化钾,所以海水才是咸的。
我国沿海城市居民,早期引进海水用日晒的方法提取海盐食用,这证明了海水中含有盐份,海水是咸的。我们可以用一个1250CC的瓶子装满海水,加热蒸发后大概可以得到一汤匙的食盐,所以,这也可以证明海水里含有盐份。
这样,海水是咸的道理我们都明白了吧。
落叶飘过的天空,对于欣赏美景的人来说是充满闲情逸致的;对失落的人来说,那是安慰他们·抚慰他们心灵的环境。
秋天,秋高气爽的季节。凉爽的秋风阵阵的吹,携带着阵阵的微凉,透入人的心中。满山遍野的欢喜声,只有置身于山野中,才可以让那凄凉被人们的欢笑声盖住。一切的果子都成熟,身上的露珠是历经艰辛的汗水,带给人们是结果后的甜蜜。之后,那便是落叶缤纷的场景。
白天,在自己被人们数落后’嘲笑后,走在丛林中,落叶像蝴蝶一样的翩翩起舞,挥洒出寂寞与忧愁;又像一艘无舵的船,在大海中迷失了人生的方向,慢慢的落下,仔细寻找出口的方向。落下,它的颜色与土壤融为一体。人们踩上去,只听见清脆的响声,轻微的在耳边飘过,结束了自己的生命。曾经他站在粗壮的树枝上,同伴们一起装饰自然,迎接清晨“璀璨的明珠”,用以镶嵌绿野大地。眼前落叶并未遮挡住向前走的路线。自己偷偷的在这里宣泄出自己所有的心情。
唯有在这里,自己的心灵才可得抚慰。坐在椅子上,望着眼前的景物,回想自己伤心时的场景。蓝天上的朵朵白云,已经不见了,留下的是那一片蔚蓝的天空,带给人无限遐想。一切的寂静,让自己身临其境。渐渐的自己自言自语的声音就此变低。在太阳快要下山的时候,一缕温和的阳光照在脸上,又重新给我以自信,相信自己,自己一定能战胜困难,走在那湿润的土壤上,走在回家的小路上。
在那里乘凉的人们,坐在椅子上,同其他人一起有说有笑的谈论家常。黑夜在不知不觉中已经笼罩了大地。一轮明月挂在天上,黑夜衬托着明亮的月亮,闪烁着的星星,仿佛有着说不尽的秘密要告诉我们,用尽他们各种方式。皎洁的月光如牛乳一般倾倒在大地上。落叶纷纷的.落下飘荡在小溪中。寂寞的气氛再现,对于诗人来说是充满诗情画意的,对于悲哀的人来说是思想,忧愁的归宿。
远远望去,是初升的太阳。清凉的晨风掠过我红彤彤的脸颊,惺忪的睡眼中是一抹病态的慵懒。叶子慢慢的落尽,那无数的身躯曾经在高处那对生命的渴望。落叶飘过天空,带来星光,带走了哀愁,带来了安慰的话语。
落叶飘过的天空就是如此,十分的寂静,让人们内心的忧愁与烦恼得以透露。让人们拥有自信,走进无限的遐想中。在太阳落山时,走出自己内心的忧愁。
落叶飘过天空显现不出美丽的天空,却可以点缀出自信的人生。
静静地,悄悄地,你来了,像一首乐曲。戴上耳机,默默听那首——春曲。
百般寒冬过后,你像阳光般普照大地,倘若着梦想,因为着人生。
倘若“一年之计在于晨”,你便成为了一位文艺青年,春色便是你绘画人生蓝图的起始色,是思想的新生,是万物周而复始的开始。因为你,我们有了种种感悟,各样感想,我愿在这斗天星河中将你追寻,握住你的双手走遍世界每一个角落。
慢慢地,你起舞了,像个多才少女般起步了,一步一步挪送着花香,脚尖踮着冰河,在你的热舞中渐渐融化,汇聚成河,流淌着整个青春;慢慢地,你奔跑了,像个飞人般前行。冲刺着绿色的气息,将阻挠在旁的寒意冲散开来。四肢拉动着梦想,梦想的天堂在一步一个脚印中拉锯得更近。这即是你到来的春意盎然,扰乱着整齐的旋律。
此刻,你更像一位多彩的漫画师,让大地这个孩子披上了五彩的衣裳,兴奋得像小鸟依人般活在你的照耀下,不再莽撞,不再心浮气躁,为着下一个站点而思考着飞翔目标。你让天空这个大人也变得湛蓝,仿佛春节的喜庆还未结束,面容尽挂的是满满的笑容,你像个平面镜样折射着天空,让那空中飞翔着的鸟儿也时不时驻翅下望,望着这布满神秘又诱惑的春意。
仿佛你又是一名医生,用你春意浓浓的手术刀救治着被凛冽寒风刺痛刺伤的人群,让他们在理想的彼岸不再徘徊左右,茫然失措,你就是他们的向导,是你让他们重新站在了起跑线上,为着下一个季节而去拼命地奔跑,放肆地追逐,仿佛下个路口会消失似的,从此不再犹豫,不再彷徨。认准了目标便只顾风雨兼程,不再为了寒冬而担惊受怕。
你是理想的双翼,是让我们在大地与天空之间飞翔的翅膀,时而急躁,时而轻柔,焦急地想要把这大地变幻的更多彩一点,想要这春风吹遍每一个受伤的角落,想要这花的芳香飘散在每个有志者的心田。
你曾化身关联词、漫画师、医生、双翼,在这种种令人缭乱的身影中,你谱成春天这篇乐章,让理想路上有你不孤单。
Long, long ago, there were two brothers, the one rich and the other poor. When Christmas Eve came, the poor one had not a bite in the house, either of meat or bread; so he went to his brother, and begged him, in God's name, to give him something for Christmas Day. It was by no means the first time that the brother had been forced to give something to him, and he was not better pleased at being asked now than he generally was.
"If you will do what I ask you, you shall have a whole ham," said he. The poor one immediately thanked him, and promised this.
"Well, here is the ham, and now you must go straight to Dead Man's Hall," said the rich brother, throwing the ham to him.
"Well, I will do what I have promised," said the other, and he took the ham and set off. He went on and on for the livelong day, and at nightfall he came to a place where there was a bright light.
"I have no doubt this is the place," thought the man with the ham.
An old man with a long white beard was standing in the outhouse, chopping Yule logs.
"Good-evening," said the man with the ham.
"Good-evening to you. Where are you going at this late hour?" said the man.
"I am going to Dead Man's Hall, if only I am on the right track," answered the poor man.
"Oh! yes, you are right enough, for it is here," said the old man. "When you get inside they will all want to buy your ham, for they don't get much meat to eat there; but you must not sell it unless you can get the hand-mill which stands behind the door for it. When you come out again I will teach you how to stop the hand-mill, which is useful for almost everything."
So the man with the ham thanked the other for his good advice, and rapped at the door.
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