当前位置：首页 > 教学文档 > 教学资源>新概念英语第四册第38课:Water and the traveler

新概念英语第四册第38课:Water and the traveler

2025-01-07 08:57:31 收藏本文下载本文

“budade”通过精心收集，向本站投稿了5篇新概念英语第四册第38课:Water and the traveler，以下是小编为大家准备了新概念英语第四册第38课:Water and the traveler，欢迎参阅。

篇1：新概念英语第四册第38课:Water and the traveler

Lesson 38 Water and the traveller水和旅行者

First listen and then answer the following question.

听录音，然后回答以下问题。

What does this text describe?

Contamination of water supplies is usually due to poor sanitation close to water sources, sewage disposal into the sources themselves, leakage of sewage into distribution systems or contamination with industrial or farm waste. Even if a piped water supply is safe at its source, it is not always safe by the time it reaches the tap. Intermittent tap-water supplies should be regarded as particularly suspect.

水源的污染通常是由于接近水源的地方卫条件太差而造成的：污水排入水源，污水渗入给水系统或工农业污水造成污染。即使管道供水系统在水源处安全的，等水到达龙头时就不一定总是安全的了。断断续续的水管应该被视为是非常可疑的。

Travellers on short trips to areas with water supplies of uncertain quality should avoid drinking tap-water, or untreated water from any other source. It is best to hot drinks, bottled or canned drinks of well-known brand names -- international standards of water treatment are usually followed at bottling plants. Carbonated drinks are acidic, and slightly safer. Make sure that all bottles are opened in your presence, and that their rims are clean and dry.

短途旅行到水质不保险的地区时，应避免饮用水龙头的水或未经处理任何其他来源的水。最好仅饮用开水，名牌瓶装或罐装水 -- 装瓶厂通常遵循国际水处理的标准。碳酸饮料是酸性的，就更安全一些。确保瓶子是当你面开启的，瓶口清洁干燥。

Boiling is always a good way of treating water. Some hotels supply boiled water on request and this can be used for drinking, or for brushing teeth. Portable boiling elements that can boil small quantities of water are useful when the right voltage of electricity is available. Refuse politely any cold drink from an unknown source.

烧开一直是水处理的一种好办法。有的酒店根据要求可提供开水，这些开水可用于饮用和刷牙。如果有相配的电压，可以煮少量水的便携式热水装置是有用的。应谢绝任何不明来源的冷饮。

Ice is only as safe as the water from which it is made, and should not be put in drinks unless it is known to be safe. Drink can be cooled by placing them on ice tather than adding ice to them.

冰块只有当制造冰块的水安全时才是保险的，只有知道冰块安全时才能加入饮料。可以把饮料置于冰块之上来冷却，而不是把冰块加进饮料之中。

Alcohol may be a medical disinfectant, but should not be relied upon to sterilize water. Ethanol is more effective at a concentration of 50-70 per cent; below 20 per cent, its bactericidal action is negligible. Spirits labelled 95 proof contain only about 47 per cent alcohol. Beware of methylated alcohol, which is very poisonous, and should never be added to drinking water.

酒精可能是医学上的消毒剂，但决不可用来消毒饮用水。乙醇的浓度为50%至70%时比较有效，浓度低于20%时，杀菌能力基本上就不存在了。强度标为95的酒中含有47%的酒精。要提防甲基化酒精，那是剧毒的，永远不能掺入饮用水。

If no other safe supply can be obtained, tap water that is too hot to touch can be left to cool and is generally safe to drink. Those planning a trip to remote areas, or intending to live in countries where drinking water is not readily available, should know about the various possible methods for making water safe.

如果没有其他安全的饮用水，水管中流出的烫手的水可以留下来冷却。这种水一般是安全的。那些计划去偏远地区旅行，或在饮用水不现成的国家居住的人，应该知道如何使水适于饮用的各种办法。

New words and expressions 生词和短语

contamination

n. 污染

sanitation

n. 卫生，卫生设备

sewage

n. 污水

leakage

n. 泄漏

intermittent

adj. 间歇的，断断续续的

carbonated

adj. 碳化的，碳酸的

acidic

adj. 酸的，酸性的

alcohol

n. 酒精

disinfectant

n. 消毒剂

sterilize

v. 消毒

ethanol

n. 乙醇

bactericidal

adj. 杀菌的

negligible

adj. 可以忽略的，微不足道的

methylated

adj. 加入甲醇的

Notes on the text课文注释

1 keep to,局限于。

2 Ice is only as safe as the water from which it is made,冰块只是当制造冰块的水安全时才是安全的。

3 know about ,知道...的情况，了解。

Lesson 38 课后练习和答案Exercises and Answer

篇2：新概念英语第四册第7课:Bats

Lesson 7 Bats蝙蝠

First listen and then answer the following question.

听录音，然后回答以下问题。

In what way does echo-location in bats play an utilitarian role?

Not all sounds made by animals serve as language, and we have only to turn to that extraordinary discovery of echo-location in bats to see a case in which the voice plays a strictly utilitarian role.

动物发出的声音不都是用作语言交际。我们只要看一看蝙蝠回声定位这一极不寻常的发现，就可以探究一下声音在什么情况下有绝对的实用价值。

To get a full appreciation of what this means we must turn first to some recent human inventions. Everyone knows that if he shouts in the vicinity of a wall or a mountainside, an echo will come back. The further off this solid obstruction, the longer time will elapse for the return of the echo. A sound made by tapping on the hull of a ship will be reflected from the sea bottom, and by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated. So was born the echo-sounding apparatus, now in general use in ships. Every solid object will reflect a sound, varying according to the size and nature of the object. A shoal of fish will do this. So it is a comparatively simple step from locating the sea bottom to locating a shoal of fish. With experience, and with improved apparatus, it is now possible not only to locate a shoal but to tell if it is herring, cod, or other well-known fish, by the pattern of its echo.

要透彻理解这句话的意义，我们应先回顾一下人类最近的几项发明。大家都知道，在墙壁或山腰附近发出的喊声，就会听到回声。固体障碍物越远。回声返回所用时间就越长。敲打船体所发了的声音会从海底传回来，测出回声间隔的时间，便可算出该处海洋的深度。这样就产生了目前各种船舶上普遍应用的回声探测仪。任何固体者反射声音，反射的声音因物体的大小和性质的不同而不同。鱼群也反射声音。从测定海深到测定鱼群，这一进展比较容易。根据经验和改进了的仪器，不仅能够确定鱼群的位置，而且可以根据鱼群回声的特点分辨出是鲱鱼、鳕鱼，这是人们所熟悉的其他鱼。

It has been found that certain bats emit squeaks and by receiving the echoes, they can locate and steer clear of obstacles -- or locate flying insects on which they feed. This echo-location in bats is often compared with radar, the principle of which is similar.

人们发现，某些蝙蝠能发出尖叫声，并能通过回声来确定并躲开障碍物，或找到它们赖以为生的昆虫。蝙蝠这种回声定位常常可与雷达相比较，其原理是相似的。

New words and expressions生词和短语

bat

n. 蝙蝠

strictly

adv. 明确地

utilitarian

adj.实用的

appreciation

n. 理解

elapse

v. 障碍物

hull

n. 消逝

interval

n. 船体

receipt

n. 间隔

apparatus

n. 收到

shoal

n. 仪器

herring

n. 鱼群

cod

n. 鳕鱼

squeak

n. 尖叫声

Notes on the text课文注释

1 Not all sounds made by animals serve as language,动物发出的声音不全是作语言交流。此句采用了部分否定，既不是否定所有的动物，而只是一部分。serve as,作...之用。

2 turn to,求助于。

3 play a role in,在...方面起作用。

4 in the vicinity of,在...的附近。

5 So was born the echo-sounding appararus,就这样诞生了回声探测仪。这是一个倒装句，主要是为了避免因主语过长而使全句失去平衡，同时也为了使apparatus的定语now in general use in ships紧挨着名词。in general use,普遍使用。

6 steer clear of,避开。

Lesson 7 课后练习和答案Exercises and Answer

篇3：新概念英语第四册第24课:Beauty

Lesson 24 Beatuy美

First listen and then answer the following question.

听录音，然后回答以下问题。

What do glimpses of beauty, either in nature or art, often suggest to the human mind?

A young man sees a sunset and, unable to understand or to express the emotion that it rouses in him, concludes that it must be the gateway to world that lies beyond. It is difficult for any of us in moments of intense aesthetic experience to resist the suggestion that we are catching a glimpse of a light that shines down to us from a different realm of existence, different and, because the experience is intensely moving, in some way higher. And, though the gleams blind and dazzle, yet do they convey a hint of beauty and serenity greater than we have known or imagined. Greater too than we can describe; for language, which was invented to convey the meanings of this world, cannot readily be fitted to the uses of another.

一个年轻人看到日落，由于无法理解和表达日落在他心中唤起的激情，便得出结论：日落处想必是通往遥远世界的大门。无论是谁，在强烈感受到美的时刻，心中都不禁油生一种遐想：我们似乎瞥见从另一个世界射向我们的一线光芒，那个世界不仅不同于我们这个世界，而且由于美感的强烈感染，在某些方面比我们这个世界更美好。虽然这光芒令人眼花缭乱，但它确实给予我们一种不曾经历和无法想象的美感和静谧的启示。这种美感和静谧是我们无法描述的，因为我们发明的语言是用来描述这个世界的含义，不能随便拿来去描述另一个世界。

That all great has this power of suggesting a world beyond is undeniable. In some moods, Nature shares it. There is no sky in June so blue that it does not point forward to a bluer, no sunset so beautiful that it does not waken the vision of a greater beauty, a vision which passes before it is fully glimpsed, and in passing leaves and indefinable longing and regret. But, if this world is not merely a bad joke, life a vulgar flare amid the cool radiance of the stars, and existence an empty laugh braying across the mysteries; if these intimations of a something behind and beyond are not evil humour born of indigestion, or whimsies sent by the devil to mock and madden us. if, in a word, beauty means something, yet we must not seek to interpret the meaning. If we glimpse the unutterable, it is unwise to try to utter it, nor should we seek to invest with significance that which we cannot grasp. Beauty in terms of our human meanings is meaningless.

不可否认，一切伟大的艺术都具有使人遐想到进入天外世界的魅力。在某种状态下，大自然也有这种魅力。六月蔚蓝的天空总使人遥想一个更加蔚蓝的苍穹；美丽的落日总会引起一个更加绚丽的景象未及饱览便一闪即逝，并在消逝中给人留下不可名状的渴望和惆怅。如果这个世界不只是一个拙劣的恶作剧，如果人生不只是群星寒光中平凡的一闪，如果存在不只是对神秘事物的一种空虚的笑声，如果某种玄妙事物的暗示不是消化不良引起的邪恶情绪，也不是魔鬼为了捉弄我们，使我们发狂而送给我们的邪念，一句话，如果美有某种意义的话，我闪千万不要去阐明它的意义。如果我瞥见了只可意会不可言传的事物，企图把它说出来，那上不明智的；对于我们不理解的事物，我们也不应该去赋予它某种意义。用对我们人类有意义的词解释美是没有意义的。

New words and expressions 生词和短语

intense

adj. 强烈的

aesthetic

adj. 审美的

realm

n. 世界

serenity

n. 静谧

undeniable

adj. 不可否认的

indefinable

adj. 模糊不清的

vulgar

adj.平庸的

radiance

n. 发光

intimation

n. 暗示

unutterable

adj. 不可言传的

invest

v. 赋予

Notes on the text课文注释

1 in moments of intense acsthetic experience, 在感受到强烈美的时候。

2 in some way higher, in some way 是“某种程度上”的意思，higher与前面的different and 是并列的，作realm of existence的定语。

3 yet do they convey a hint of beauty,其中的do起强调作用，放在主语之前更具有强调的意义。

4 In some moods Nature shares it.在某种状态下，大自然也具有这种力量。it 是指前面一句中 this power of suggesting a world beyond。

Lesson 24 课后练习和答案Exercises and Answer

篇4：新概念英语第四册第27课:The ‘Vasa’

Lesson 27 The 'Vasa'“瓦萨”号

First listen and then answer the following question.

听录音，然后回答以下问题。

What happened to the 'Vasa' almost immediately after she was launched?

From the seventeenth-century empire of Sweden, the story of a galleon that sank at the start of her maiden voyage in 1628 must be one of the strangest tales of the sea. For nearly three and a half centuries she lay at the bottom of Stockholm harbour until her discovery in 1956. This was the Vasa, royal flagship of the great imperial fleet.

1628年，一艘大帆船在处女航时就沉没了，这个从容不迫7世纪瑞典帝国流传至今的故事无疑是航海史上最离奇的事件之一。这艘大船在斯德哥尔摩港口的海底躺了将近几年来个世纪之后，直到1956年才被发现。这就是“瓦萨”号，帝国大舰的皇家旗舰。

King Gustavus Adolphus, 'The Northern Hurricane', then at the height of his military success in the Thirty Years' War, had dictated her measurements and armament. Triple gun-decks mounted sixty-four bronze cannon. She was intended to play a leading role in the growing might of Sweden.

当时号称“北方飓风”的国王古斯夫斯.阿道尔弗正处在“三十年战争”的军事鼎盛阶段，他亲自规定了这艘船的规模和武器配备。3层的火炮甲板上装着眼点4门青铜加农炮，目的就是要在不断增长的瑞典势力中起主导作用。

As she was prepared of her maiden voyage on August 10, 1628, Stockholm was in a ferment. From the Skeppsbron and surrounding islands the people watched this thing of beauty begin to spread her sails and catch the wind. They had laboured for three years to produce this floating work of art; she was more richly carved and ornamented than any previous ship. The high stern castle was a riot of carved gods, demons, knights, kings, warriors, mermaids, cherubs; and zoomorphic animal shapes ablaze with rea and gold and blue, symbols of courage, power, and cruelty, were portrayed to stir the imaginations of the superstitious sailors of the day.

1628年8月10日，“瓦萨”号准备首航时，斯德哥尔摩一片欢腾。人们从斯开波斯布朗和周围的岛屿前来观着这艘美丽的战船扬帆起航，乘风前进。瑞典人辛辛苦苦干了3年才建成这件水上艺术品，它比以往任何船只雕刻得都更加精美，装饰得都更加华丽。高耸的船楼上雕刻了令人眼花缭乱的神仙、妖魔、骑士、国王、武士、美人鱼和小天使，还有用红色、金黄色、蓝色绘制的光彩夺目的兽形图案，象征着勇敢、力量和残暴，以激起汉时崇尚迷信的水手们的想像。

Then the cannons of the anchored warships thundered a salute to which the Vasa fired in reply. As the emerged from her drifting cloud of gun smoke with the water churned to foam beneath her bow, her flags colour, she presented a more majestic spectacle than Stockholmers had ever seen before. All gun-ports were open and the muzzles peeped wickedly from them.

这时，停泊在港口的其他战船向“瓦萨”号鸣炮致礼，“瓦萨”号也鸣炮回礼。当“瓦萨”号从弥漫的礼炮烟云中出现时，船头下浪花加溅，舰旗迎风招展，三角旗随风飘动，微风鼓起风帆，金碧辉煌的船楼闪耀着灿烂的色彩。“瓦萨”号展现的壮观景象是斯德哥尔摩人从未见过的。船上的炮眼开着，炮口虎视眈眈地向外窥视着。

As the wind freshened there came a sudden squall and the ship made a strange movement, listing to port. The Ordnance Officer ordered all the port cannon to be heaved to starboard to counteract the list, but the steepening angle of the decks increased. Then the sound of rumbling thunder reached the watchers on the shore, as cargo, ballast, ammunition and 400 people went sliding and crashing down to the port side of the steeply listing ship. The lower gun-ports were now below water and the inrush sealed the ship's fate. In that first glorious hour, the mighty Vasa, which was intended to rule the Baltic, sank with all flags flying-in the harbour of her birth.

当风力增强时，突然刮来一阵大风，“瓦萨”号奇怪地摇晃了一下，便向左舷倾斜。炮长命令把左舷上所有大炮搬到右舷上来以抵消船的倾斜，但甲板的倾斜度仍在增加。当物口、压舱物、弹药和400个人轰地一声滑向陡斜的左舷时，岸上的观众听到了雷鸣般的轰响。下层炮眼已淹没在水里，涌进船舱的水给“瓦萨”号带来了难以逃脱的厄运。就这样，想要统治波罗的海的大型战舰“瓦萨”号，在它壮丽的起航时刻，带着全身飘扬的彩旗，沉没在了它诞生的港口。

New words and expressions 生词和短语

galleon

n. 大型帆船

Stockholm

n. 斯德哥尔摩

flagship

n. 旗舰

imperial

adj. 帝国的

hurricane

n. 飓风

armament

n. 军械

triple

adj. 三层的

mount

v. 架有

bronze

n. 青铜

cannon

n. 加农炮

might

n.力量

ferment

n.激动不安

ornament

v.装饰

riot

n.丰富

demon

n.恶魔

mermaid

n.美人鱼

cherub

n.小人使

zoomorphic

adj.兽形的

ablaze

adj.光彩的

portray

v.绘制

drifting

adj.弥漫的

churn

v.翻滚

pennant

n.三角旗

superstructure

n.上部结构

majestic

adj.威严的

muzzle

n.炮口

freshen

v.变强

squall

n.狂风

list

v.倾斜

port

n.(船、飞机的)左舷

ordnance

n.军械

heave

v.拖

starboard

n.(船、飞机的)右舷

counteract

v.抵消

steepen

v.变得更陡峭

ballast

n.压舱物

inrush

n.水的涌入

Baltic

n.波罗的海

Notes on the text课文注释

1 the 'Vasa', “瓦萨号”战船。这艘船是以瑞典瓦萨王朝（1523-1654）创始人Gustavus Vasa的姓氏命名的。Gustavus Vasa（1496-1560）曾领导了发对丹麦统治的暴动，1523年出任国王，使瑞典成了一个独立、统一、富强的国家。

2 the Thirty Years War“三十年战争”。这是欧洲历史上的一场多国混战，具有政治和宗教色彩，是新教诸侯和天主教诸侯之间的连年战争（1618-1648），最后在1648年签定了威斯特伐利亚条约，以天主教诸侯失败而告终。

3 a riot of,许多...，主要指色彩丰富。

4 with the water churned...，her flags flying , pennans waving , sails filling...， and the red and gold ... ablaze... with最后5个独立主格结构，均作方式状语，修饰动词emerged。

Lesson 27 课后练习和答案Exercises and Answer

篇5：新概念英语第四册第46课:Hobbies

Lesson 46 Hobbies业余爱好

First listen and then answer the following question.

听录音，然后回答以下问题。

Who, according to the author, are 'Fortune's favoured children'?

a gifted American psychologist has said, 'Worry is a spasm of the emotion; the mind catches hold of something and will not let it go.' It is useless to argue with the mind in this condition. The stronger the will, the more futile the task. One can only gently insinuate something else into its convulsive grasp. And if this something else is rightly chosen, if it really attended by the illumination of another field of interest, gradually, and often quite swiftly, the old undue grip relaxes and the process of recuperation and repair begins.

一位天才的美国心理学家曾经说过：“烦恼是感情的发作，此时脑子纠缠住了某种东西又不肯松手。”在这种情况下，你又和头脑争吵让它松手是无济于事的。这种意志越是强烈，这种尝试越是徒劳。你只能缓和而巧纱地让另一种东西进入痉挛僵持的头脑中。如果选得合适，而且的确受到别的领域的情趣的启迪，那么渐渐地，往往也是很顺利地，原先不适当的紧张就会松弛下来，恢复和修整的过程就会开始。

The cultivation of a hobby and new forms of interest is therefore a policy of the first importance to a public man. But this is not a business that can be undertaken in a day or swiftly improvised by a mere command of the will. The growth of alternative mental interests is a long process. The seeds must be carefully chosen; they must fall on good ground; they must be sedulously tended, if the vivifying fruits are to be at hand when needed.

因此，对一个从事社会活动的人来说，培养一种业余爱好和各种新的兴趣是关等重要的作法。但这并非一日之功，也不是单凭一蹴而就的事。精神上多种情趣的培养是一个长期的过程。要想在需要的时候可随手摘取充满生机的果实，那就必然从选良种做起，然后将其植入肥沃的土地，还需要勤勉地护理。

To be really happy and really safe, one ought to have at least two or three hobbies, and they must all be real. It is no use starting late in life to say: 'I will take an interest in this or that.' Such an attempt only aggravates the strain of mental effort. A man may acquire great knowledge of topics unconnected with his daily work, and yet get hardly any benefit or relief. It is no use doing what you like; you have got to like what you do. Broadly speaking, human beings may be divided into three classes: those who are toiled to death, those who are worried to hard week's sweat and effort, the chance of playing a game of football or baseball or Saturday afternoon. It is no use inviting the politician or the professional or business man, who has beer working or worrying about serious things for six days, to work or worry about trifling things at the weekend.

一个人要想真正感到幸福和平安，至少应有两三种爱好，而且都比较实际。到了晚年才开始说：“我会对这些人或那个人发生兴趣”，已没有用了。这种愿望只能加剧精神紧张。一个人可能会获得与其日常工作无关的某些课题的渊博知识，而没有从中得到什么实益或宽慰。干你所喜欢的事是没有用的，你喜欢你所干的事。泛泛地说，人可以分为3类：劳累至死的人、忧虑至死的人、无聊至死的人。对于流汗出力干了一周苦活的体力劳动者来说，让他们在星期六下午再踢足球或打垒球是不合适的；同样，对于为严肃的公务操劳或烦恼了6天的政界人士、专业人员、商人来说，在周未再让他们为琐事而动脑子和忧虑也是无益的。

As for the unfortunate people who can command everything they want, who can gratify every caprice and lay their hands on almost every object of desire -- for them a new pleasure, a new excitement if only an additional satiation. In vain they rush frantically round from place to place, trying to escape from avenging boredom by mere clatter and motion. For them discipline in one form or another is the most hopeful path.

至于那些能任意支配一切的“可怜的人”，他们能够恣意妄为，能染指一切追求的目标。对这种人来说，多一种新的乐趣、多一种新的刺激只是增加一分厌腻而已。他们到处奔乱跑，企图以闲聊和乱窜来摆脱无聊对他们的报复，但这是徒劳的。对他们来说，用某种形式的纪律约束他们一下才能有希望使他们走上正道。

It may also be said that rational, industrious, useful human being are divided into two classes: first, one. Of these the former are the majority. They have their compensations. The long hours in the office or the factory bring with them as their reward, not only the means of sustenance, but a keen appetite for pleasure even in its simplest and most modest forms. But Fortune's of sustenance, but a keen appetite for pleasure even in its simplest and modest forms. But Fortune's favoured children belong to the second class. Their life is a natural harmony. For them the working hours are never long enough. Each day is a holiday, and ordinary holidays, when they come, are grudged as enforced as enforced interruptions in an absorbing vocation. Yet to both classes, the need of an alternative outlook, of a change of atmosphere, of a diversion of effort, is essential. Indeed, it may well be that those work is their pleasure are those who and most need the means of banishing it at intervals from their minds.

也可以这样说，理智的，勤劳的、有用的人可以分为两类：第一类是他分清工作是工作，娱乐是娱乐的人；第二类人的工作和娱乐是一回事。这两类人当中，第一类人是大多数，他们能够得到补偿。在办公室或工厂里长时间工作给他们带来了酬劳，这不仅是谋生的手段，而且还带来了寻找乐趣的强烈欲望，那怕是最简单的、最低等的乐趣。但是，命运之神的宠儿是第二类人，他们的生活是一种自然的和谐，对他们来说，工作时间总不会太长，每天都是假日，而通常的假期来到，他们却惋惜这假期强制打断了他们埋头从事的工作。然而对这两种人来说，都需要换一换脑子，改变一下气氛，转移一下注意力，这是不可缺少的。说实在的，把工作当作享受的那些人最需要每隔一段时间把工作从头脑中撇开。

New words and expressions 生词和短语

gifted

adj. 有天才的

psychologist

n. 心理学家

spasm

n. 一阵（感情）发作

futile

adj. 无用的

insinuate

v. 便潜入，暗示

convulsive