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英语五级阅读文章

时间:2020-08-14 13:17:42 五级 我要投稿

英语五级阅读文章3篇

  备考公共英语五级的考生应该都有这样的经历,看不完的英语文章。确实,充足的英语阅读量是英语五级考试的法宝。下面,小编为大家送上3篇英语五级阅读文章。

英语五级阅读文章3篇

  英语五级阅读文章一

  Police and Communities

  Few institutions are more important to an urban community than its police, yet there are few subjects historians know so little about. Most of the early academic interests developed among political scientists and sociologists, who usually examined their own contemporary problems with only a nod toward the past. Even the public seemed concerned only during crime waves, periods of blatant corruption, or after a particularly grisly episode. Party regulars and reformers generally viewed the institution from a political perspective; newspapers and magazines - the nineteenth century's media - emphasized the vivid and spectacular.

  Yet urban society has always vested a wide, indeed awesome, responsibility in its police. Not only were they to maintain order, prevent crime, and protect life and property, but historically they were also to fight fires, suppress vice, assist in health services, supervise elections, direct traffic, inspect buildings, and locate truants and runaways. In addition, it was assumed that the police were the special guardians of the citizens' liberties and the community's tranquillity. Of course, the performance never matched expectations. The record contains some success, but mostly failure; some effective leadership, but largely official incompetence and betrayal. The notion of a professional police force in America is a creation of the twentieth century; not until our own time have cities begun to take the steps necessary to produce modern departments.

  警察与社区

  对城市社区来说,很少有比它的警察更为重要的机构了,但少有课题像历史学家们对此了解得那样少。早期的学术兴趣是在政治科学家和社会学家中发展起来的,他们一般只研究他们自己当代的问题而对过去的问题只是偶尔带过。甚至公众似乎也仅仅在犯罪浪潮、明目张胆的贪腐或特别的恐怖事件发生时才关心。政党的忠诚支持者和改革家们通常是从政治的前途来看待警察这个机构;而报纸和杂志-19 世纪的传播媒介-则着重活泼生动和惊人的事件。可是城市社会总是把广泛得可怕的责任交给警察。他们不仅维持秩序、防止犯罪、保护生命财产,而且在过去还要救火、镇压罪恶、协助医疗服务、监督选举、指挥交通、检查建筑物、寻找逃学学生和搜捕逃犯。 除此以外,警察还被认为是公民自由和社会稳定的特别保护者。自然,警察的表现并不尽如人意。他们的记录中有成功者,但多数是失败的;有高效率的领导,但多半的人在职务上无能和不讲信用。专业警察部队的概念在美国还是20 世纪的`产物;直到我们这个时代,一些城市才开始采取设立现代化部门的必要步骤。

  英语五级阅读文章二

  Food and Health

  The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially cancer of the colon. Different cultures are more prone to contract certain illnesses because of the food that is characteristic in these cultures. That food is related to illness is not a new discovery. In 1945, government researchers realized that nitrates and nitrites, commonly used to preserve color in meats, and other food additives, caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which things in the packaging labels of processed food are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to beef and poultry, and because of this, penicillin has been found in the milk of treated cows. Sometimes similar drugs are administered to animals not for medicinal purposes, but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration (FDA) has tried repeatedly to control these procedures, the practices continue.

  食品与健康

  我们所吃的食物似乎对我们的健康有深远的影响。尽管科学上已取得许多进展,使食物更适合我们食用,但与此同时它也使许多食物不宜食用了。一些研究已经表明,人类大概有80%的疾病与饮食有关,40%的癌症,特别是结肠癌,也与饮食有关。不同的文化会使人们更易患某些疾病,这是由这些文化的人们喜好的食物所致。食物与疾病有关并不是新发现。1945 年,政府部门的科研工作者了解到,被广泛用于肉类以保持肉类色泽的硝酸盐、亚硝酸盐和其他的添加剂可诱发癌症。可是这些致癌物质依然存在于我们的食物之中。与此同时,要想知道加工食品标签上的哪些成分对健康有利,哪些成分对健康不利,变得更加困难了。我们吃到的这些添加物并非都是如此直接的。农民常给牛和家禽注射青霉素,因而在受过注射的牛所产牛奶里发现青霉素。有时让家禽服用这类药物并非是为了治病,而是为了经济上的缘故。农民们只是想使家畜长得更肥壮可以上市场上卖到好价钱。虽然食物和药品管理局已一再设法控制这种情况的发生,但是这种行为仍在继续。

  英语五级阅读文章三

  MARS

  Mars According to the best evidence gathered by space probes and astronomers, Mars is an inhospitable planet, more similar to Earth's Moon than to Earth itself - a dry, stark, seemingly lifeless world. Mars' air pressure is equal to Earth's at an altitude of 100,000 feet. The air there is 95% carbon dioxide. Mars has no ozone layer to screen out the Sun's lethal radiation. Daytime temperatures may reach above freezing, but because the planet is blanketed by the mere wisp of an atmosphere, the heat radiates back into space. Even at the equator, the temperature drops to 50℃ ( 60 ) at night. Today there is no liquid water, although valleys and channels on the surface show evidence of having been carved by running water. The polar ice caps are made of frozen water and carbon dioxide, and water may be frozen in the ground as permafrost. Despite these difficult conditions, certain scientists believe that there is a possibility of transforming Mars into a more Earth like planet. Nuclear reactors might be used to melt frozen gases and eventually build up the atmosphere. This in turn could create a "greenhouse effect" that would stop heat from radiating back into space. Liquid water could be thawed to form a polar ocean. Once enough ice has melted, suitable plants could be introduced to build up the level of oxygen in the atmosphere so that, in time, the planet would support animal life from Earth and even permanent human colonies. "This was once thought to be so far in the future as to be irrelevant," said Christopher McKay, a research scientist at the National Aeronautics and Space Administration. "But now it's starting to look practical. We could begin work in four or five decades." The idea of "terra forming" Mars, as enthusiasts call it, has its roots in science fiction. But as researchers develop a more profound understanding of how Earth's ecology supports life, they have begun to see how it may be possible to create similar conditions on Mars. Don't plan on homesteading on Mars any time soon, though. The process could take hundreds or even thousands of years to complete, and the cost would be staggering.

  火星

  据宇宙探测器和天文学家收集的有力证据,火星是一个人类不能居住的星球。它不像地球,而更像月球——一个干涸、荒芜,看上去没有任何生命的世界。火星的气压相当于地球上十万英尺高空处的气压。火星大气的构成中有95%是二氧化碳,而且,火星上没有能屏蔽太阳致命射线的臭氧层。白天,那里的温度可以达到零上,但因为包裹火星的大气层极为稀薄,热量又会辐射回宇宙中。就算是在火星赤道,夜里的温度也在 50℃。尽管火星上的山谷沟渠说明它曾经被流水蚀刻过,但如今那里已没有液态水了。极地冰帽是由固态水和二氧化碳组成的,水也有可能存在于永久冻土之中。尽管困难重重,某些科学家依然认为有可能把火星改造成类似地球的星球。核反应可以用来融化冰冻的气体最终形成火星大气层。由此就可以产生温室效应,阻止热量散射回宇宙中。液化的水可以融化成极地海洋。足够量的冰融化后,可将地球上的植物移植上去。植物又可以向大气层提供氧气。久而久之火星就可以维持从地球过去的动物生命甚至成为人类的永久居留地。"这一切在过去看起来遥远得近乎无稽",国家航天局的一位研究人员,克里斯托弗·麦克凯说," 但是现在已经开始展现出可能性。四五十年后,我们就可以着手于这项工作。"这种支持者们称为"移居火星"的想法最早出现在科幻小说中。但随着研究者对地球上生态如何支持生命的理解越来越深入,在火星上创造类似地球环境也显得越来越现实。但千万别计划很快在火星上建造家园。这个历程需要几百乃至上千年,而且耗费将是惊人的。

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