生命中不可或缺的东西作文800字【一】
冰淇淋是生活中不可缺少的一道美食。夏天没胃口时，尝些冰淇淋，是一个迅速补充体力降低体温的好方法。尤其对小朋友来说更是挡不住的诱惑，聪明的妈妈能在小朋友不愿吃饭时，偶尔改变方式以冰淇淋取代主食，同样能摄取营养和热量，漂亮的颜色又让人产生食欲。
你知道吗？美国每年能销售10亿加仑的冰淇淋，8%的牛奶最终变成冷冻食品。如今，各种各样的冰淇淋店更是遍布世界。现在就让我们一起看看冰淇淋的历史吧。
The earliest reports of people enjoying flavored ice desserts come from the Romans and the Chinese. Marco Polo returned from his famous expedition with fruit-flavored ices, reporting that Asians had been making them for thousands of years. These delicacies became popular in France in the 1500s, but only among royalty. Over the next few centuries, the process of making them evolved from hauling mountain ice to salt/ice freezing methods. Cream was introduced as an ingredient, and by the 1700s, people were enjoying a dessert that was very similar to today's ice cream.
The hand-cranked ice cream freezer was first developed by Nancy Johnson in 1846. Ice was readily available from large warehouses in that era, so ice cream became a treat that could be enjoyed by almost anyone, not just the rich. Ice cream making was revolutionized again in 1851, when Jacob Fussel started the first wholesale ice cream manufacturing operation in Baltimore, Maryland. Fussel's dairy business had excess cream and he couldn't figure out what to do with it. He tried using it to make ice cream, and before long his ice cream business outsold the rest of the dairy.
The business slowly evolved for the next few decades. Manufacturing methods and ingredients improved, while refrigeration technology became cheaper and more efficient. By the 1920s, home refrigerators and freezers became more common, which gave the ice cream industry another boost. Sugar was rationed in the US during World War I, but the ice cream industry convinced the government that ice cream was an "essential food”. Ice cream factories were allotted sugar rations and production continued.
Ice cream increased in popularity until the Depression years caused a drop in sales for virtually all non-essential goods. Sales increased in the years leading up to World War II before leveling off in the post-war years. The rise of the giant supermarket created demand for cheaper, mass-produced ice cream, but quality suffered. The 1960s saw a resurgence in "premium"ice cream, while the following decades saw the market fragment into low-fat varieties for the health-conscious, including frozen yogurt, fruit bars, ice milk, fat-free ice cream, and dozens of other varieties. However, ice cream still makes up about 60 percent of the market share among frozen desserts. While ice cream is enjoyed worldwide, it has become an American tradition
生命中不可或缺的东西作文800字【二】
生命是我们生活中的唯一需要，每一种生命都有其存生的价值和意义，所有生命之间都有着微妙的和谐关系。
生命是我们，它是我们所有的一切前程，失去了它，我们等于失去了一切。生命是我们最、最容易忽略的.东西，我们把生命看得太平凡了，一切习惯的东西我们常常会忘记它，因此，人们在道理上都知道生命的重要性，实际上却常常做一些浪费自己生命的事情，比如：吸烟、大量的喝酒、不讲卫生、小学生上网等等。有很多人为虚名浮利而忙碌，却不愿意花时间来让生命感到快乐，来做一些实现生命本身的价值的事情，往往是当我们的生命真的收到威胁的时候，才去珍惜生命，生命是不可替代的。
生命，有时候醒悟已经为时太晚，损失的已经不可换回，我们浪费了太多、太多的时间了。
我们要珍惜自己的时间，人生最重要的财富就是时间，时间是人生最初的财富，但是人们在人生的道路上经常会忽略自己拥有的这笔财富，往往在追逐金钱和地位的时候，忽略了这笔财富。我懂得，一分钟会做许多事情的，我们容易受电视、电脑的吸引，打电话是没完没了的，总而言之浪费时间，就等于慢性自***。
生命中不可或缺的东西作文800字【三】
记得在八岁的时候，我在农村得了一个怪病，这种病在当时医术并不算太发达的农村俟然算是一笔巨款，但即便是花费高昂的价格也难以痊愈，镇上已有死亡的案例，我的父母急的如热锅上的蚂蚁，最后，他们决定尝试一下，我被送进了镇上唯一的一所医院，说是医院，还不如是一家诊所，灰色的土坯房，水泥地，上面摆着一些简单的饮料器物，我嗅着那空气中传来的一抹淡淡的药香，是我生命中最难忘的味道。
稍大一些的时候，我随着父亲去奶站为奶牛挤奶，奶牛棚的规模真是不算小，数几十头奶牛旁边是一大片绿油油的草地，我看着父亲动作娴熟的从母牛的乳头挤下奶自己也欲欲跃试，但还是没有挤出来，原来是没有挤对啊
我无心挤奶，和工人的孩子一起在农村的田野上恣情的玩耍，那孩子也很开朗，一五一十的向我介绍这里的“设备”，我听了后啧啧称奇，原来一向偏远、狭小的农村竟有这样的“世外桃源”……
“呼~”从美好的梦境走了出来，心里竟升腾起一阵莫名的暖流，这正如鲁迅先生在《故乡》中写到：其实地上本没有路，走的人多了，也便成了路。抬头，仰望着湛蓝的天，呵，农村还能回到以前的温馨吗？
我在农村的今年，最忘不了那一道救命的阴爻的味道和那漫步在田野稻子传来的淡淡稻花香，或许，在多年后，我可能会忘记我所在的农村，但我又怎能忘记那难忘的味道与村人那朴实、真诚地笑脸呢？
