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实用英语综合教程第二册-4

时间:2007-01-11 16:00来源:互联网 提供网友:belle0920   字体: [ ]
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UNIT 4
Text A

PRE-READING TASK

Exercise 1
Before reading the passage, look at these questions. Then try to find the answers as you read it.

1. Where is the Bermuda Triangle located?
2. What happened there in 1945?

The Bermuda Triangle

1. On 5th December, 1945, five bombers2 from a United States Naval3 Air Station left Fort Lauderdale, Florida, on a routine training flight over the Atlantic Ocean, east of Florida. A short time later the base received radio messages from the bombers (Flight 19) saying that they were lost. Then radio contact was broken. The flight did not return, and the planes that were sent to look for the bombers also failed to return. A massive search operation was mounted, but no trace of the missing planes or their pilots was found. They had simply and inexplicably4 disappeared.
2. This event was sufficient to confirm in many people's minds that the so-called "Devil's Triangle", or "Bermuda Triangle" -- a section of the North Atlantic bounded roughly by Bermuda, Florida and Puerto Rico -- really was haunted, and in some mysterious way was responsible for the loss of ships and planes. In all, in this area (3900000 square kilometres) of open sea, more than 50 ships and 20 planes have mysteriously disappeared. These include the U.S. Navy ship Cyclops in 1918 and the merchant vessel5 Marine6 Sulphur Queen in 1963. In the same year two U.S. Air Force KC 135 planes also disappeared without trace. In other words, it is not only small boats and planes that have vanished in the area, but the most modern and best equipped too.
3. Perhaps the most dramatic shipping7 loss in the area was the U.S. Navy nuclear submarine Scorpion8. This vessel, like others before her, disappeared without explanation in May, 1968. Some months later she was found on the bottom of the ocean, but the reason for her loss has not been properly explained.
4. Many theories about the area have been proposed, and whole books have been written on the subject. It has been suggested, for example, that the disappearances10 are caused by unknown magnetic forces from outer space or from the bottom of the sea. There is also a theory about underwater volcanic11 action that affects shipping, and another that suggests the lost continent of Atlantis, which according to legend lies somewhere beneath the Atlantic, is involved.
5. However, others state that it is more likely that there is nothing special about this imaginary triangle of water, and that it is a product of sensational12 journalism13. After all, ships, boats and planes are lost at sea in all parts of the world due to weather, mechanical failure or human error, and several of the losses are mysterious. The Marie Celeste, an American cargo14 boat, for example, was found in 1872 off the coast of Portugal in perfect order but with no crew on board. Their disappearance9 has never been explained. Did some of them mutiny and then escape? Were all the crew killed by some unknown agent? Did they try to escape from some danger or other? We shall probably never know.
6. However, regardless of the theories which exist about the "Bermuda Triangle", ships, boats and planes continue to travel daily through the area with great frequency, and it has not been proven that a higher percentage of accidents and losses occur in this section of the North Atlantic than in other areas of the world's oceans.

New Words

triangle
n. 三角形,三角形物体

bomber1
n. an aircraft that carries and drops bombs 轰炸机

naval
a. of a navy 海军的

fort
n. 城堡,堡垒

routine
a. usual; habitual15; regular 日常的,例行的

Atlantic
a. 大西洋的
n. [the Atlantic] 大西洋

mount
v. 1. to carry out 开展,进行
2. to put something into place on a support 安装

missing
a. that cannot be found or that is not in its usual place; lost 失去的,下落不明的

inexplicable16
a. that cannot be explained 无法解释的

confirm
v. 证实,证明,确定

so-called
a. 所谓的,号称的

devil
n. 魔鬼

bound
v. 形成...的疆界,成为...的界线
n. 边界,界线

haunt
v. 1. (鬼魂等)经常出现,作祟
2.常到,常去(某地)

responsible
a. 1.being the cause (of something) 作为原由的
2.answerable for one's behaviour 对...负责的

loss
n. the act, instance or process of losing 损失,丧失,遗失

navy
n. 海军

nuclear
a. 1. 使用或产生核能的
2. 原子核的,核的

submarine
n. 潜水艇

vessel
n. a ship or boat, esp. a large one 舰,船(尤指大型的)

marine
a. 1. of, found in or produced by the sea 海的,海生的,海产的
2. of shipping matters 海上的,海事的,海运的

vanish
v. to disappear completely and suddenly 突然不见,消失

propose
v. to offer or put forward (something) for consideration; suggest 提出,提议,建议

unknown
a. not known 不为人所知的

magnetic
a. 磁的,有磁性的

outer
a. of or for the outside 外的,外部的

volcanic
a. 火山的,来自火山的

legend
n. 传说

involve
v. to include or affect (somebody or something) in its operation 牵涉,涉及

imaginary
a. existing only in the mind or imagination; not real 想象中的,不真实的

sensational
a. 令人激动的,轰动的

error
n. a mistake 过失,错误,谬误

due
prep. 应由...所得,应得
a. that should be paid or given 应给的,应得的

cargo
n. the goods carried in a ship or aircraft 船或飞机运载的货物

crew
n. 船上、飞机上或钻井机上的工作人员

mutiny
v. 背叛,反抗

agent
n. 1.(发生作用或影响的)动因,力量
2. the person who acts for other people in business, politics, etc. 代理人,经纪人

regardless
ad. paying no attention to someone or something 不顾一切地,无论如何

frequency
n. the fact of happening often 频繁

Phrases and Expressions

be responsible for
作为...原由的, 对...需负责任的

in all
总共,一共

in other words
换句话说

due to
由于,因为

in perfect order 完好无损

on board
在船上

regardless of
不顾,不管

Proper Names

Bermuda
百慕大群岛(位于北大西洋西部)

the Bermuda Triangle
百慕大三角

Fort Lauderdale
洛德代尔堡(佛罗里达州)

Florida
佛罗里达州(美国州名)

the Atlantic Ocean
大西洋

Puerto Rico
波多黎各(西印度群岛东部一岛,属美国)

Cyclops
塞克拉普斯号

Marine Sulphur Queen
海硫昆士号商船

Scorpion
天蝎星号核潜艇

Atlantis
亚特兰蒂斯(传说中的岛屿)

Marie Celeste
玛丽.塞莱斯特号货船

Portugal
葡萄牙

Text B

PRE-READING TASK

Exercise 1
The passage you are going to read is about "infra-sound"(次声). Before reading the passage, think about the questions.

1. Do you have any ideas about infra-sound?
2. What might be the possible role it plays in our daily life?

Now read the passage to learn more about it.

Sounds We Cannot Hear

1. A man is driving down a long, straight Arizona highway. Suddenly he starts to drift across to the other side of the road. An oncoming truck flashes its headlights and hoots18 furiously, but to no avail. There is a sickening crash; the truck ends up half off the road, the driver of the car dies. The Arizona highway police, who arrive on the scene shortly afterwards, immediately ask all the obvious questions. Drink? No. Drugs? No, the post-mortem showed no evidence of drugs. Medicine? No, his wife was sure he had not been taking any medicine which might have affected19 him. Sleep? No, he had slept seven and a half hours the night before, and anyway he was an experienced highway driver. The weather? No, it was a mild autumn day. The car? As far as the police could tell, the car had been in good mechanical condition. There was one thing, though: it was a new car, and the man had never driven it before. So what had caused the accident?
2. Infra-sound is sound that the human ear cannot hear, as it cannot pick up vibrations21 below about thirty cycles a second (or above about 22 000). A motor vehicle running steadily22 at speed produces audible sound, but it also produces infra-sound, at between ten and twenty cycles per second. This sound cannot be heard but it can affect us. The British Acoustical23 Society has recently stated that, depending on the car, the road surface and the person concerned, this infra-sound can produce " euphoria, recklessness, lower efficiency and dizziness". You can become literally24 "drunk with sound". Was that what happened to the man on the Arizona highway? Perhaps in his case, we shall never know.
3. In fact infra-sound can be extremely dangerous to the body, as Professor Gavreau of Marseilles recently discovered. He wanted to investigate low-frequency sound, and realised that an ordinary French gendarme25's whistle produces plenty of infra-sound. He therefore built a huge copy of a police whistle, six feet long, and connected it to an air-compressor. The results were more surprising than he expected: the operator who switched it on dropped dead on the spot. A post-mortem examination showed that his internal organs had been reduced to a jelly by the low-frequency vibrations. After that, Gavreau worked more carefully, Even so, in his second test he broke every window in every building within half a mile of the test site.
4. Low-frequency vibrations can be detected several minutes before an earthquake. People who live in earthquake zones are aware that dogs often start to howl before an earthquake, and seismographs confirm that what the dogs can sense is really occurring, though humans are unaware26 of it. Water is particularly sensitive to low frequency vibrations, and goldfish may be the first inhabitants of a house to be aware that an earthquake is coming. The Japanese, who live on top of a system of fractures and faults, are familiar with this phenomenon, and often keep goldfish in their houses; when the fish start swimming frantically27 about, it is time to look for a safe place well away from a large building! It has even been claimed that some animals become aware of earth tremors29 as much as several hours before they are observed by human beings, and that rabbits and deer have been seen running in terror from what afterwards turns out to be the epicentre of an earthquake.
5. More research will be needed before we are sure how infra-sound can be used, but two things are already clear: the information it provides may be vital, and infra-sound itself can be dangerous.

New Words

drift
v. 飘, 漂流

oncoming
a. 接近的,迎面而来的

headlight
n. a large lamp on the front of a locomotive, motor-car, etc. (火车,汽车等的)前灯

hoot17
n. & v. the sound made by a motor-car horn, etc. 汽车喇叭等发出的鸣响

furiously
ad. violently 猛烈地

avail
n. value; help 帮助,用处

sickening
a. disgusting 令人毛骨悚然的,使人厌恶的

crash
n. 1. a sudden, loud sound made by a violent fall, blow or break 发出撞击声,爆烈声
2. a violent vehicle accident 车辆撞车事故

shortly
ad. soon; in a short time 即刻,不久

post-mortem
n. 验尸

mild
a. 1.(of the weather) warmer than usual, especially in autumn and winter (天气)温和的
2.(性情等)温和的

infra-sound
n. 次音(音频低于听觉范围的声音)

vibration20
n. 振动,颤动

cycle
n. (交流电、声波等的)周,赫

vehicle
n. a machine such as a bus, car, that carries people or things from place to place 车辆

audible
a. loud enough to be heard 可听见的

acoustical
a. 声学的,听觉的

euphoria
n. 1.欣快症
2.兴奋

recklessness
n. 鲁莽

dizziness
n. 眩晕,头晕眼花

literally
ad. 1.简直
2.确实地, 真正地

investigate
v. to inquire into; make a careful study of 调查

gendarme
n. (法国等欧洲国家的)宪兵

whistle
n. 口哨,口哨声

air-compressor
n. 空气压缩机

operator
n. a person who operates or works something 操作者

switch
v. to turn (electric current) on or off 接通或切断(电流)

internal
a. of or in the inside 内部的,内在的

reduce
v. to change (to another form) 改变(成另一种形式)

jelly
n. 一团,糊状物

site
n. a place where something was, is, or is to be 场所

detect
v. to discover 查出,查明

earthquake
n. a sudden, violent movement of the earth's surface 地震

zone
n. 区域,地带

howl
v. (a wolf or dog) to utter a long, loud cry (狼、狗)嚎叫,狂吠

seismograph
n. 地震仪
unaware
a. not knowing; not aware 不知道的,未察觉的

sensitive
a. 敏感的

goldfish
n. 金鱼

inhabitant
n. 居民,住户

fracture
n. a break 断裂(面)

frantically
ad. 紧张纷乱地

tremor28
n. the shaking or trembling 颤抖,颤动

rabbit
n. 兔子

deer
n. 鹿

terror
n. great fear 恐怖,惊骇

epicentre
n. the point at which an earthquake reaches the earth's surface 地震中心

vital
a. necessary or very important 必不可少的,极其重要的

Phrases and Expressions

to no avail
没有结果,不起作用

end up
结束,告终

shortly afterwards
不久之后

as far as
(表示程度、范围)就…, 尽…

pick up
听到,看到

switch on
打开,接通

be aware/unaware of
察觉到/未察觉到

be sensitive to
对...敏感

be familiar with
熟悉,了解

turn out
原来是,证明是

Proper Names

Arizona
亚利桑那州(美国)

the British Acoustical Society
英国声学学会

Gavreau
加夫罗(人名)

Marseilles
马赛(法国东南部港市)


点击收听单词发音收听单词发音  

1 bomber vWwz7     
n.轰炸机,投弹手,投掷炸弹者
参考例句:
  • He flew a bomber during the war.他在战时驾驶轰炸机。
  • Detectives hunting the London bombers will be keen to interview him.追查伦敦爆炸案凶犯的侦探们急于对他进行讯问。
2 bombers 38202cf84a1722d1f7273ea32117f60d     
n.轰炸机( bomber的名词复数 );投弹手;安非他明胶囊;大麻叶香烟
参考例句:
  • Enemy bombers carried out a blitz on the city. 敌军轰炸机对这座城市进行了突袭。 来自《简明英汉词典》
  • The Royal Airforce sill remained dangerously short of bombers. 英国皇家空军仍未脱离极为缺乏轰炸机的危境。 来自《简明英汉词典》
3 naval h1lyU     
adj.海军的,军舰的,船的
参考例句:
  • He took part in a great naval battle.他参加了一次大海战。
  • The harbour is an important naval base.该港是一个重要的海军基地。
4 inexplicably 836e3f6ed2882afd2a77cf5530fca975     
adv.无法说明地,难以理解地,令人难以理解的是
参考例句:
  • Inexplicably, Mary said she loved John. 真是不可思议,玛丽说她爱约翰。 来自《简明英汉词典》
  • Inexplicably, she never turned up. 令人不解的是,她从未露面。 来自辞典例句
5 vessel 4L1zi     
n.船舶;容器,器皿;管,导管,血管
参考例句:
  • The vessel is fully loaded with cargo for Shanghai.这艘船满载货物驶往上海。
  • You should put the water into a vessel.你应该把水装入容器中。
6 marine 77Izo     
adj.海的;海生的;航海的;海事的;n.水兵
参考例句:
  • Marine creatures are those which live in the sea. 海洋生物是生存在海里的生物。
  • When the war broke out,he volunteered for the Marine Corps.战争爆发时,他自愿参加了海军陆战队。
7 shipping WESyg     
n.船运(发货,运输,乘船)
参考例句:
  • We struck a bargain with an American shipping firm.我们和一家美国船运公司谈成了一笔生意。
  • There's a shipping charge of £5 added to the price.价格之外另加五英镑运输费。
8 scorpion pD7zk     
n.蝎子,心黑的人,蝎子鞭
参考例句:
  • The scorpion has a sting that can be deadly.蝎子有可以致命的螫针。
  • The scorpion has a sting that can be deadly.蝎子有可以致命的螫针。
9 disappearance ouEx5     
n.消失,消散,失踪
参考例句:
  • He was hard put to it to explain her disappearance.他难以说明她为什么不见了。
  • Her disappearance gave rise to the wildest rumours.她失踪一事引起了各种流言蜚语。
10 disappearances d9611c526014ee4771dbf9da7b347063     
n.消失( disappearance的名词复数 );丢失;失踪;失踪案
参考例句:
  • Most disappearances are the result of the terrorist activity. 大多数的失踪案都是恐怖分子造成的。 来自辞典例句
  • The espionage, the betrayals, the arrests, the tortures, the executions, the disappearances will never cease. 间谍活动、叛党卖国、逮捕拷打、处决灭迹,这种事情永远不会完。 来自英汉文学
11 volcanic BLgzQ     
adj.火山的;象火山的;由火山引起的
参考例句:
  • There have been several volcanic eruptions this year.今年火山爆发了好几次。
  • Volcanic activity has created thermal springs and boiling mud pools.火山活动产生了温泉和沸腾的泥浆池。
12 sensational Szrwi     
adj.使人感动的,非常好的,轰动的,耸人听闻的
参考例句:
  • Papers of this kind are full of sensational news reports.这类报纸满是耸人听闻的新闻报道。
  • Their performance was sensational.他们的演出妙极了。
13 journalism kpZzu8     
n.新闻工作,报业
参考例句:
  • He's a teacher but he does some journalism on the side.他是教师,可还兼职做一些新闻工作。
  • He had an aptitude for journalism.他有从事新闻工作的才能。
14 cargo 6TcyG     
n.(一只船或一架飞机运载的)货物
参考例句:
  • The ship has a cargo of about 200 ton.这条船大约有200吨的货物。
  • A lot of people discharged the cargo from a ship.许多人从船上卸下货物。
15 habitual x5Pyp     
adj.习惯性的;通常的,惯常的
参考例句:
  • He is a habitual criminal.他是一个惯犯。
  • They are habitual visitors to our house.他们是我家的常客。
16 inexplicable tbCzf     
adj.无法解释的,难理解的
参考例句:
  • It is now inexplicable how that development was misinterpreted.当时对这一事态发展的错误理解究竟是怎么产生的,现在已经无法说清楚了。
  • There are many things which are inexplicable by science.有很多事科学还无法解释。
17 hoot HdzzK     
n.鸟叫声,汽车的喇叭声; v.使汽车鸣喇叭
参考例句:
  • The sudden hoot of a whistle broke into my thoughts.突然响起的汽笛声打断了我的思路。
  • In a string of shrill hoot of the horn sound,he quickly ran to her.在一串尖声鸣叫的喇叭声中,他快速地跑向她。
18 hoots 328717a68645f53119dae1aae5c695a9     
咄,啐
参考例句:
  • His suggestion was greeted with hoots of laughter. 他的建议引起了阵阵嗤笑。
  • The hoots came from the distance. 远处传来呜呜声。
19 affected TzUzg0     
adj.不自然的,假装的
参考例句:
  • She showed an affected interest in our subject.她假装对我们的课题感到兴趣。
  • His manners are affected.他的态度不自然。
20 vibration nLDza     
n.颤动,振动;摆动
参考例句:
  • There is so much vibration on a ship that one cannot write.船上的震动大得使人无法书写。
  • The vibration of the window woke me up.窗子的震动把我惊醒了。
21 vibrations d94a4ca3e6fa6302ae79121ffdf03b40     
n.摆动( vibration的名词复数 );震动;感受;(偏离平衡位置的)一次性往复振动
参考例句:
  • We could feel the vibrations from the trucks passing outside. 我们可以感到外面卡车经过时的颤动。
  • I am drawn to that girl; I get good vibrations from her. 我被那女孩吸引住了,她使我产生良好的感觉。 来自《简明英汉词典》
22 steadily Qukw6     
adv.稳定地;不变地;持续地
参考例句:
  • The scope of man's use of natural resources will steadily grow.人类利用自然资源的广度将日益扩大。
  • Our educational reform was steadily led onto the correct path.我们的教学改革慢慢上轨道了。
23 acoustical acoustical     
adj. 听觉的,声学的,音响学的
参考例句:
  • This system can set up acoustical resonances. 这种系统能产生共鸣。
  • The relevance of acoustical principles is by no means limited to sound and hearing. 声学原理并不仅仅适用于声音和听觉。
24 literally 28Wzv     
adv.照字面意义,逐字地;确实
参考例句:
  • He translated the passage literally.他逐字逐句地翻译这段文字。
  • Sometimes she would not sit down till she was literally faint.有时候,她不走到真正要昏厥了,决不肯坐下来。
25 gendarme DlayC     
n.宪兵
参考例句:
  • A gendarme was crossing the court.一个宪兵正在院子里踱步。
  • While he was at work,a gendarme passed,observed him,and demanded his papers.正在他工作时,有个警察走过,注意到他,便向他要证件。
26 unaware Pl6w0     
a.不知道的,未意识到的
参考例句:
  • They were unaware that war was near. 他们不知道战争即将爆发。
  • I was unaware of the man's presence. 我没有察觉到那人在场。
27 frantically ui9xL     
ad.发狂地, 发疯地
参考例句:
  • He dashed frantically across the road. 他疯狂地跑过马路。
  • She bid frantically for the old chair. 她发狂地喊出高价要买那把古老的椅子。
28 tremor Tghy5     
n.震动,颤动,战栗,兴奋,地震
参考例句:
  • There was a slight tremor in his voice.他的声音有点颤抖。
  • A slight earth tremor was felt in California.加利福尼亚发生了轻微的地震。
29 tremors 266b933e7f9df8a51b0b0795733d1e93     
震颤( tremor的名词复数 ); 战栗; 震颤声; 大地的轻微震动
参考例句:
  • The story was so terrible that It'sent tremors down my spine. 这故事太可怕,它使我不寒而栗。
  • The story was so terrible that it sent tremors down my spine. 这故事太可怕,它使我不寒而栗。
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TAG标签:   实用英语  综合教程
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