作文是一种通过文字描绘情感和思想的艺术，通过作文，我们可以反映社会问题和现象，下面是一团范文网小编为您分享的盐的作用作文精选8篇，感谢您的参阅。
盐的作用作文篇1
大家都知道芦荟这种植物吧。那大家知道它各部分有什么作用吗？让我来介绍吧！
芦荟是百合科多年生常绿肉质草本，它四季常绿。它像开着美丽的绿花儿，其实那不是真正的花，而是叶子。一个个饱饱的好像每天都在不停的吃饭。是的，它每天都在吃饭，但不是米，而是水分和养分。当我轻轻地挤一下，它里面就会流出一些液体，那就是它的血。
听说：芦荟是一种古老的、传统的中药，在我国药典中有所记载，民间普遍用来治多种疾病，其疗效比较显着。老面姓认为芦荟是一种不花钱也能治病的良药，芦荟全草可入药，可清热利湿、健胃。味苦甘，性寒，有消肿拨毒、清热通便、平肝健胃、凉血化淤之效，可治肺结核、烧烫伤、扭伤、消化不良、痈疮肿毒等症，所以人们认为芦荟是家庭常备良药。
芦荟其品种繁多，大约有几百种。但有药用价值的只有十几种，能食用的仅五、六种。药用价值较为突出的是属日本木立芦荟。据日本测定，1克木立芦苇荟生叶含大黄素为0。53毫克，是当今世界所公认最有药效的优良品种。
芦荟中含有多种有效成份，如：各种氨基酸、有机酸、多种生理活性物质、多种微量元素、酵素物质和治愈激素，另外还含有较多的纤维素，对人体的保健、医疗等都有疗效。芦荟中含有芦荟酊、芦荟米酊和芦荟乌辛等，有较强的搞菌作用和破
坏癌细胞的作用。芦荟汁液中含有机锗（羟乙基锗三氧化物），对肺癌、肝癌、白血病等有较好的'疗效，日本制造的芦荟素搞癌剂—a的主要成份就是它。而芦荟甙、芦荟大黄素、异芦荟甙等蒽醌类物质，具有高度的生理性，它直接参与人体的生物化学过程，有利于人体的免疫功能和人体生理活性，并且有润肠通便的特效功能。
看来芦荟全身都是宝，所以我爱芦荟，并且我还栽种了许多芦荟呢！
盐的作用作文篇2
the world is not only hungry,but also is short of thewater.this may sound strange for 70% of the surfaceof the use is covered by water.but 97% of this is seawater or soft water.man can only use the other 3%fresh water that country rivers,lakes and from otherground and we can't ever use all of that becausesome of them are the iceberges and glaciers. what'sworse, some of the fresh water has been polluted.ourneed of water is increasing rapidly day by day. so we should take the measures to solve theproblem.
盐的作用作文篇3
高尔基说过：书籍是人类进步的阶梯。莎士比亚也说过：书籍是全世界的营养品。而我觉得：没有书籍，我就无法生存。正是书籍，伴随我度过了五年的小学生涯，一直到现在上初中。现在，书籍仿佛是我的一位知心好友，每分每秒都在我身边陪伴着我。
在我很小的时候，成为了家里名副其实的混世小魔王，是书改变了我，让我从一个无知的顽童变成了一个能文能理的女孩子。我从幼儿园大班时看自以为很好看的绘本，但是很快，绘本已经不能满足我这个大小姐了，我开始看家注音的童话书了，一直到现在，我已经开始看名人名作家写的作品了。
记得上一次发生了一件因为我看书痴迷而发生了一件尴尬的事情：我走在去公交车站牌的路上，一边走一边捧着一本叫《心有欢喜过生活》的书，我聚精会神的看着书，越看越入迷。走着走着，我不知不觉的走到了马路中央。这时一辆电动车疾驰而来，谢谢鲍撞到把我吓出了一身冷汗，尽管这样，我还是不长记性，若无其事的继续看书，到站牌上了，27路找了一个位置，坐下来继续看书，不知过了多久司机叔叔说我猛地一抬头呀，坐过站了，此时我心里仿佛有一只小兔子在一直跳个不停，心里像热锅上的蚂蚁，急得团团转，其叔叔联盟问我家长的联系方式，不知过了多久，我才平安回到家。
书山有路勤为径，学海无涯苦作舟。知识的海洋无边无际，书给我带来了无穷的快乐和无尽的知识，我一定要在真实的海洋里继续遨游下去！
盐的作用作文篇4
is science dangerous
the rapid development of science and technology has brought about great changes to human life, including great harms and disasters .then people enter into endless argument about whether science is dangerous or not.
so many examples can be figured out to prove the danger of science. advanced technology can be easily manipulated by irresponsible persons as well as terrorist. such as the disaster 911, airplanes fly into buildings, fire burning, huge structures collapse, a lot of victims such as intellectual and business elites were sacrificed. besides, as technology becomes more powerful day by day , well be complacent and lazy. increased dependency on modern tools like calculators has reduced on our creativity. students can’t solve a very simple mathematical equation without using a calculator. this affects the way these students uses their brains and reduces on the level of creativity.
just like the saying goes that every coin has two sides. however, it ‘s obvious that we make the decision to choose which side. after 911, people condemn the terrorist not airplays. student who got low marks should rethink his carelessness and laziness but not pass the buck to the calculator.
any way, there is no dangerous science, but dangerous and irresponsible people. we are working very hard to solve such problems that come along with advances in science and technology, but the efforts are not sufficient and not very successful. actually, the key lies in the user. moralities such as responsibility, diligence and goodness should never be lost in our heart. otherwise , the world would be full of danger even we turn back to the stone age.
盐的作用作文篇5
每听到同学们都抱怨读书的缺点呀、坏处呀，我却都好奇的挠挠头，不知读书有什么坏处。据我所知，读书的好处可是数不胜数呢！
读书，赢得夸奖
一次，在一节课文课上，老师在黑板上写了一个成语，其中有一个字同学们都不知道，纷纷猜测，教室里立刻乱成了一锅粥，说什么的都有，同桌问我：“你知道这字怎么念吗？”我摇摇头又点点头，小声说：“好像是念shǔ吧！”记得上次爸爸让我背三字经时，有一句是“稻粮菽，麦黍稷，此六谷，人所食。”其中的shǔ和老师写得那个字一模一样，我便大声的说：“老师，那个字念shǔ。”老师查了字典后认定是念shǔ。下课了，同学们纷纷问我是怎么认识这个字的，我告诉他们后，他们纷纷夸我见识多，我笑在脸上，乐在心里。
读书，增长知识
一个星期天，我和表妹曼曼一起玩。突然，天上打起了雷，表妹吓得一下子躲到屋子里大叫：“姐姐！姐姐！天上打雷啦！”边喊边用手捂住耳朵，可雷声却仍然回荡在耳边，表妹吓得手舞足蹈，不知所措。我拍拍表妹的.肩，说：“别怕，不用用手盖住耳朵，你张大嘴巴试试，我在《十万个为什么》上看的，你试试！”表妹听了，不捂耳朵了，张大嘴巴，果真，雷声不太响了，我又跟她说说话，雷声根本就没有了。
读书，过得充实
以前，一二年级，我不太爱读书，写完作业就知道玩。直到三年级时，我接受了爸爸送我的第一本绘本加故事的书——《读友》，当我翻开第一页时，就被它吸引了。从此，发展到我写完作业再把作业给妈妈检查时看书，有空时看书。星期六星期天也看书，发现了许多神奇而奥妙的事。
读书，使我终身受益！读书真好！
盐的作用作文篇6
everyone has the first time experience. as i remember the most rememberable experience i have came through was the first time i learn how to ride the bicyble by myself when i was still a ignorant and young little boy. it certainly was a difficult challenge for a seven years old boy who's feeble and vulnerable but nothing could tribulate a kid who with a struggling determination that had frequently accomplished incalculable conflict by himself. undoubtedly the experience of learning how to ride the bicyble had a incredible impact on my life that i authentically have acquired a value statement in my mind "don't ever lose hope and give up before things turning fine" which motivated me to overcome this challenge successfully.
i remember vividly the day i learned how to ride a bike. it was a sunny summer morning perfect for being outdoors. ............每个人都有第一次体验。我记得，我有最刻骨铭心的体验经历是我第一次学会骑bicyble我当我还是一个懵懂的年轻的小男孩。这当然是一七岁男孩的软弱和脆弱的一个艰难的挑战，但是没有什么能tribulate孩子与奋斗的决心，经常完成自己不可估量的冲突。毫无疑问，经验学习如何骑bicyble对我的生活产生了不可思议的影响，我确实已经在我的心里获得的值的声明，永远不要失去希望，放弃之前的事情变好，这鼓励我克服这一挑战成功。
我清楚地记得我学会骑自行车的那一天。这是一个阳光明媚的夏日早晨，适合户外。............
盐的作用作文篇7
who is willing to drink the polluted water? it can cause us to be ill and even to die. we can't wait for a moment to protect our water sources. the water we use es from oceans, lakes, rivers or streams. but many of these water sources are getting seriously polluted. towns and cities are pouring dust into the water. many people are throwing all kinds of dirty things into the water. factories are pouring waste material into the water. therefore, water sources have bee so badly polluted that some of the water is unfit to drink or to use. now it is high time that we should do something to protect our water environment from being polluted.
盐的作用作文篇8
as a middle school student, i learn many subjects, i study very hard every day. when i go home, i will do my homework and then review the books. but when the holiday comes, i feel a little confused, because i don’t want to study and want to do something new. i don’t know what to do. my mind went blank.
i decided to cultivate my interest. one day, i happened to see a tennis match, i couldn’t stop watching, then i fell in love with tennis. so i began to learn to play tennis, i felt very happy. develop interests and hobbies
now tennis is my favorite sport, i find a way to relax myself.
参考译文：
作为一名中学生，我学了很多科目，我每天都很努力地学习。当我回家的时候，我将做我的家庭作业，然后复习这些书。但是当假期来临时，我感到有点困惑，因为我不想学习，想做一些新的东西。我不知道该怎么办。我的脑子一片空白。
我决定培养自己的兴趣。有一天，我碰巧看到一场网球比赛，我无法停止观看，然后我爱上了网球。所以我开始学习打网球，我感到很高兴。培养兴趣爱好
现在网球是我最喜欢的运动，我找到了一个放松自己的方法。
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