《新概念英语》是1997年由外语教学与研究出版社和培生教育出版中国有限公司联合出版的一套英语教材。下面小编就和大家分享新概念英语第四册Lesson15~19原文及翻译，希望有了这些内容，可以为大家学习新概念英语提供帮助!
新概念英语第四册Lesson15原文及翻译
Secrecy in industry
工业中的秘密
First listen and then answer the following question.
听录音，然后回答以下问题。
Why is secrecy particularly important in the chemical industries?
Two factors weigh heavily against the effectiveness of scientific research in industry. One is the general atmosphere of secrecy in which it is carried out, the other the lack of freedom of the individual research worker. In so far as any inquiry is a secret one, it naturally limits all those engaged in carrying it out from effective contact with their fellow scientists either in other countries or in universities, or even, often enough, in other departments of the same firm. The degree of secrecy naturally varies considerably. Some of the bigger firms are engaged in researches which are of such general and fundamental nature that it is a positive advantage to them not to keep them secret. Yet a great many processes depending on such research are sought for with complete secrecy until the stage at which patents can be taken out. Even more processes are never patented at all but kept as secret processes. This applies particularly to chemical industries, where chance discoveries play a much larger part than they do in physical and mechanical industries. Sometimes the secrecy goes to such an extent that the whole nature of the research cannot be mentioned. Many firms, for instance, have great difficulty in obtaining technical or scientific books from libraries because they are unwilling to have names entered as having taken out such and such a book, for fear the agents of other firms should be able to trace the kind of research they are likely to be undertaking.
J.D. BERNAL The Social Function of Science
New words and expressions
secrecy
n. 秘密
effectiveness
n. 成效，效力
inquiry
n. 调查研究
positive
adj. 确实的
process
n. 过程
patent
n. 专利;
v. 得到专利权
agent
n. 情报人员
参考译文
有两个因素严重地妨碍工业中科学研究的效率：一是科研工作中普遍存在的保密气氛;二是研究人员缺乏个人自由。任何一项研究都涉及到保密，那些从事科研的人员自然受到了限制。他们不能和其他国家、其他大学、甚至往往不能与本公司的其他部门的同行们进行有效的接触。保密程度自然差别很大。某些大公司进行的研究属于一般和基础的研究，因此不保密对他们才有利。然而，依赖这种研究的很多工艺程序是在完全保密的情况下进行的，直到可以取得专利权的阶段为止。更多的工艺过程根本就不会取得专利权，而是作为秘方保存着。在这化学工业方面尤为突出。同物理和机械工业相比，化学工业中偶然发现的机会要多得多。有时，保密竟达到了这样的程度，即连研究工作的整个性质都不准提及。比如，很多公司向图书馆借阅科技书籍时感到困难，因为它们不愿让人家记下它们公司的名字和借阅的某一本书。他们生怕别的公司的情报人员据此摸到他们可能要从事的某项科研项目。
新概念英语第四册Lesson16原文及翻译
The modern city
现代城市
What is the author's main argument about the modern city?
In the organization of industrial life the influence of the factory upon the physiological and mental state of the workers has been completely neglected. Modern industry is based on the conception of the maximum production at lowest cost, in order that an individual or a group of individuals may earn as much money as possible. It has expanded without any idea of the true nature of the human beings who run the machines, and without giving any consideration to the effects produced on the individuals and on their descendants by the artificial mode of existence imposed by the factory. The great cities have been built with no regard for us. The shape and dimensions of the skyscrapers depend entirely on the necessity of obtaining the maximum income per square foot of ground, and of offering to the tenants offices and apartments that please them. This caused the construction of gigantic buildings where too large masses of human beings are crowded together. Civilized men like such a way of living. While they enjoy the comfort and banal luxury of their dwelling, they do not realize that they are deprived of the necessities of life. The modern city consists of monstrous edifices and of dark, narrow streets full of petrol fumes and toxic gases, torn by the noise of the taxicabs, lorries and buses, and thronged ceaselessly by great crowds. Obviously, it has not been planned for the good of its inhabitants.
ALEXIS CARREL Man, the Unknown
New words and expressions 生词和短语
physiological
adj. 生理的
maximum
adj. 限度的
consideration
n. 考虑
descendant
n. 子孙，后代
artificial
n. 人工的
impose
v. 强加
dimension
n. 直径
skyscraper
n. 摩天大楼
tenant
n. 租户
civilized
adj. 文明的
banal
adj. 平庸
luxury
n. 豪华
deprive
v. 剥夺
monstrous
adj. 畸形的
edifice
n. 大厦
toxic
adj. 有毒的
ceaselessly
adv. 不停地
throng
v. 挤满，壅塞
参考译文
在工业生活的组织中，工厂对工人的生理和精神状态的影响完全被忽视了。现代工业的基本概念是：以最低成本获取最多产品，为的是让某个个人或某一部分人尽可能多地赚钱。现代工业发展起来了，却根本没想到操作机器的人的本质。工厂把一种人为的生存方式强加给工人，却不顾及这种生存方式给工人及其后代带来的影响。大城市的建设毫不关心我们。摩天大楼完全是按这样的需要修建的：每平方英尺地皮取得收入和向租房人提供使他满意的办公室和住房。这样就导致了许多摩天大厦拔地而起，大厦内众多的人挤地一起。文明人喜欢这样一种生活方式。在享受自己住宅的舒适和庸俗的豪华时，却没有意识到被剥夺了生活所必需的东西。大得吓人的高楼和阴暗狭窄的街道组成了今日现代化的城市。街道上充斥着汽油味和有毒气体，出租汽车、卡车、公共汽车的噪音刺耳难忍，络绎不绝的人群挤来挤去。显然，现代化的城市不是这居民的利益而规划的。
新概念英语第四册Lesson17原文及翻译
A man-made disease
人为的疾病
What factor helped to spread the disease of myxomatosis?
In the early days of the settlement of Australia, enterprising settlers unwisely introduced the European rabbit. This rabbit had no natural enemies in the Antipodes, so that it multiplied with that promiscuous abandon characteristic of rabbits. It overran a whole continent. It caused devastation by burrowing and by devouring the herbage which might have maintained millions of sheep and cattle. Scientists discovered that this particular variety of rabbit (and apparently no other animal) was susceptible to a fatal virus disease, myxomatosis. By infecting animals and letting them loose in the burrows, local epidemics of this disease could be created. Later it was found that there was a type of mosquito which acted as the carrier of this disease and passed it on to the rabbits. So while the rest of the world was trying to get rid of mosquitoes, Australia was encouraging this one. It effectively spread the disease all over the continent and drastically reduced the rabbit population. It later became apparent that rabbits were developing a degree of resistance to this disease, so that the rabbit population was unlikely to be completely exterminated. There were hopes, however, that the problem of the rabbit would become manageable.
Ironically, Europe, which had bequeathed the rabbit as a pest to Australia, acquired this man-made disease as a pestilence. A French physician decided to get rid of the wild rabbits on his own estate and introduced myxomatosis. It did not, however, remain within the confines of his estate. It spread through France, Where wild rabbits are not generally regarded as a pest but as sport and a useful food supply, and it spread to Britain where wild rabbits are regarded as a pest but where domesticated rabbits, equally susceptible to the disease, are the basis of a profitable fur industry. The question became one of whether Man could control the disease he had invented.
RITCHIE CALDER Science Makes Sense
New words and expressions 生词和短语
settlement
n. 新拓居地
enterprising
adj. 有事业心的
settler
n. 移居者
Antipodes
n. 新西兰和澳大利亚(英)
promiscuous
adj. 杂乱的
abandon
n. 放任，纵情
overrun
v. 蔓延，泛滥
devastation
n. 破坏，劫掠
burrow
v. 挖、掘
susceptible
adj. 易受感染的
virus
n. 病毒
myxomatosis
n. 多发性粘液瘤
infect
v. 传染
epidemic
n. 流行病
mosquito
n. 蚊虫
carrier
n. 带菌者
exterminate
v. 消灭
ironically
adv. 具有讽刺意味地
bequeath
v. 把...传给
pest
n. 害虫，有害动物
pestilence
n. 瘟疫
confine
n. 范围
domesticate
v. 驯养
参考译文
在澳大利亚移民初期，一些有创业精神的移民不明智地把欧洲兔子引进了澳大利亚。这种兔子在澳大利亚及新西兰没有天敌，因此便以兔子所特有的杂乱交配迅猛繁殖起来。整个澳洲兔子成灾。它们在地下打洞，吃掉本可以饲养数百万头牛羊的牧草，给澳洲大陆造成了毁灭性的破坏。科学家们发现，这种特殊品种的兔子(显然不包括别的动物)易患一种叫“多发性粘液瘤”的致命毒性疾病。通过让染上此病的动物在洞内乱跑，就可以使这种疾病在一个地区蔓延起来。后来又发现，有一种蚊子是传播这种疾病的媒介，能把此病传染给兔子。因此，世界上其他地方在设法消灭蚊子的时候，澳大利亚却在促使这种蚊子大量繁殖。蚊子把这种疾病扩散到整个澳洲大陆，效果甚佳，结果兔子的数目在为减少。后来，明显看出，兔子对这种疾病已产生了一定程度的免疫力，所以兔子不可能被完全消灭。但是，已有希望解决兔子所带来的问题。
具有讽刺意味的是，欧洲把这种兔子作为有害动物传给澳洲，而欧洲自己却染上了这种人为的瘟疫般的疾病。一位法国内科医生决定除掉自己庄园内的野兔子，于是引进了这种多发性粘液瘤疾病。然而，这种疾病并未被局限在他的庄园内，结果在整个法国蔓延开来。野兔在法国一般不被当作有害动物，而被视为打猎取乐的玩物和有用的食物来源。这种疾病又蔓延到了英国。在英国，野兔被当作有害的动物，可是家兔是赚钱的毛皮工业的基础，然而家兔同样易感染这种疾病。现在的问题是，人类能否控制住这种人为的疾病。
新概念英语第四册Lesson18原文及翻译
Porpoises
海豚
What would you say is the main characteristic of porpoises?
There has long been a superstition among mariners that porpoises will save drowning men by pushing them to the surface, or protect them from sharks by surrounding them in defensive formation. Marine Studio biologists have pointed out that, however intelligent they may be, it is probably a mistake to credit dolphins with any motive of lifesaving. On the occasions when they have pushed to shore an unconscious human being they have much more likely done it out of curiosity or for sport, as in riding the bow waves of a ship. In 1928 some porpoises were photographer working like beavers to push ashore a waterlogged mattress. If, as has been reported, they have protected humans from sharks, it may have been because curiosity attracted them and because the scent of a possible meal attracted the sharks. Porpoises and sharks are natural enemies. It is possible that upon such an occasion a battle ensued, with the sharks being driven away or killed.
Whether it be bird, fish or beast, the porpoise is intrigued with anything that is alive. They are constantly after the turtles, who peacefully submit to all sorts of indignities. One young calf especially enjoyed raising a turtle to the surface with his snout and then shoving him across the tank like an aquaplane. Almost any day a young porpoise may be seen trying to turn a 300-pound sea turtle over by sticking his snout under the edge of his shell and pushing up for dear life. This is not easy, and may require two porpoises working together. In another game, as the turtle swims across the oceanarium, the first porpoise swoops down from above and butts his shell with his belly. This knocks the turtle down several feet. He no sooner recovers his equilibrium than the next porpoise comes along and hits him another crack. Eventually the turtle has been butted all the way down to the floor of the tank. He is now satisfied merely to try to stand up, but as soon as he does so a porpoise knocks him flat. The turtle at last gives up by pulling his feet under his shell and the game is over.
RALPH NADING HILL Window in the Sea
New words and expressions 生词和短语
porpoise
n. 海豚
mariner
n. 水手
shark
n. 鲨鱼
formation
n. 队形
dolphin
n. 海豚科动物
unconscious
adj. 不省人事
beaver
n. 海狸
ashore
adv. 上岸
waterlogged
adj. 浸满水的
scent
n. 香味
ensue
v. 接着发生
intrigue
v. 引起兴趣
indignity
n. 侮辱
snout
n. 口鼻部
shove
v. 硬推
aquaplane
n. 驾浪滑水板
oceanarium
n. 水族馆
swoop
v. 猛扑
belly
n. 腹部
equilibrium
n. 平衡
butt
v. 碰撞
crack
n. 重击
参考译文
长期以来，海员中流传着一种迷信的说法，认为海豚会把快要淹死的人托到水面，救人性命;或在人们周围列队保护，使他们免遭鲨鱼伤害。海洋摄影室的生物学家指出，无论海豚多么聪明，认为它们有救人的动机可能是错误的。当它们偶尔把一个失去知觉的人推到岸边时，更大的可能是出于好奇或游戏，就像它们追逐被船首犁开的浪花一样。1928年，有人拍摄到了海豚像海狸一样把浸透水的床垫推上岸的情景。正如报道中所说，如果海豚保护人不受鲨鱼侵害，那么它们可能是出于好奇;而鲨鱼可能是闻到了可以美食一顿的香味。海豚和鲨鱼是天然仇敌，双方可能随之发生搏斗，搏斗结果是海豚赶走或咬死鲨鱼。
海豚对凡是活的东西都感兴趣，不管是鸟、是鱼，还是野兽。它们经常追逐海龟，海龟则温顺地忍受着各种侮辱。一只小海豚特别喜欢用鼻子把海龟推到水面，然后像滑水板一样把海龟从水池的这一边推到那一边。几乎每天都可以看到一只小海豚把鼻子顶入一只300磅重的海龟的硬壳下面，拼命地把它翻过来。这并非易事，可能需要两只海豚合伙干才行。在另一场游戏中，当海龟游过水族馆时，第一只海豚从上方猛扑下去，用腹部撞击龟壳。这一下子把海龟撞下去好几英尺。海龟刚恢复平衡，第二只海豚又冲过来猛击一下。这只海龟最终被撞到池底。此时的海龟，只要能站起来就满足了，但它刚站起来，就被一只海豚击倒。海龟终于屈服了，将4条腿缩进壳内。游戏到此结束。
新概念英语第四册Lesson19原文及翻译
The stuff of dreams
话说梦的本质
What is going on when a person experiences rapid eye-movements during sleep?
It is fairly clear that sleeping period must have some function, and because there is so much of it the function would seem to e important. Speculations about is nature have been going on for literally thousands of years, and one odd finding that makes the problem puzzling is that it looks very much as if sleeping is not simply a matter of giving the body a rest. 'Rest', in terms of muscle relaxation and so on, can be achieved by a brief period lying, or even sitting down. The body's tissues are self-repairing and self-restoring to a degree, and function best when more or less continuously active. In fact a basic amount of movement occurs during sleep which is specifically concerned with preventing muscle inactivity.
If it is not a question of resting the body, then perhaps it is the brain that needs resting? This might be a plausible hypothesis were it not for two factors. First the electroencephalograph (which is simply a device for recording the electrical activity of the brain by attaching electrodes to the scalp) shows that while there is a change in the pattern of activity during sleep, there is no evidence that the total amount of activity is any less. The second factor is more interesting and more fundamental. Some years ago an American psychiatrist named William Dement published experiments dealing with the recording of eye-movements during sleep. He showed that the average individual's sleep cycle is punctuated with peculiar bursts of eye-movements, some drifting and slow, others jerky and rapid. People woken during these periods of eye-movements generally reported that they had been dreaming. When woken at other times they reported no dreams. If one group of people were disturbed from their eye-movement sleep for several nights on end, and another group were disturbed for an equal period of time but when they were no exhibiting eye-movements, the first group began to show some personality disorders while the others seemed more or less unaffected. The implications of all this were that it was not the disturbance of sleep that mattered, but the disturbance of dreaming.
CHRISHER EVANS The stuff of dreams from The Listener
New words and expressions 生词和短语
speculation
n. 推测
literally
adv. 确实
odd
adj. 奇特的
tissue
n. 组织
plausible
adj. 似乎有理的
hypothesis
n. 假说
electroencephalograph
n. 脑电图仪
electrode
n. 电极
scalp
n. 头皮
psychiatrist
n. 精神病学家
punctuate
v. 不时介入
jerky
adj. 急动的
disorder
n. 失调
implication
n. 表明
参考译文
很清楚，睡眠必然具有某种作用。睡眠占去那么多时间，所以其作用似乎还是很重要。人们对睡眠作用的种.种猜测，确实有数千年之久。一项使人对这个问题感到困惑的奇怪的发现是，睡眠在很大程度似乎并不仅仅是为了使身体得到休息。“休息”，从使肌肉得到放松等方面来看，只要稍微躺一躺，甚至坐一坐就能达到。人体组织在一定程度上有自我修补和自我恢复的能力，有张有弛地连续活动时，其功能。事实上，睡眠状态下仍有着基本的活动量，以防止肌肉活动停止。
如果睡眠的功能不是在于使身体得到休息，那么也许是让大脑得以休息?若不是下面两点，这种假使似乎是有道理的。第一点，脑电图记录仪(不过是一种把电极接到头皮上记录脑电活动的仪器)显示，人在睡眠时大脑活动的方式有变化，但没有迹象表明，其活动总量有任何减少。第二点更有意思，也更重要。前些年，美国一位精神病学者发表了一篇报告，报告中记录了眼球在睡眠时的活动情况。他指出，平常人的睡眠周期中不时伴有一阵阵奇怪的眼球队活动，这些活动有的飘忽而缓慢，有的急剧而快速。在眼球活动期间被叫醒的人都说自己在做梦;在其他期间叫醒他们，则说没有做梦。如果有两组人，一组人连续几夜在眼球队活动时被叫醒;另一组人也是连续几夜被叫醒，但是在眼球队没活动时被叫醒的。结果，第一组人开始出现性格失常，而第二组人似乎没受什么影响。这一切暗示我们：睡眠受到干忧没关系，而做梦受到干忧是有问题的。
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