新概念英语第四册                     

• 新概念英语第四册Lesson 1 Finding Fossil man (2007-02-08)
Lesson 1 Finding Fossil manWe can read of things that happened 5,000 years ago in the Near East, wherepeople first lea

• 新概念英语第四册Lesson 2 Spare that spider (2007-02-08)
Why, you may wonder, should spiders be our friends ? Because they destroy somany insects, and insects include some of

• 新概念英语第四册Lesson 3 Matterhorn man (2007-02-08)
Modern alpinists try to climb mountains by a route which will give them goodsport, and the more difficult it is, the mo

• 新概念英语第四册Lesson 4 Seeing hands (2007-02-08)
In the Soviet Union several cases have been reported recently of people whocan read and detect colours with their finge

• 新概念英语第四册 Lesson 5 Youth (2007-02-08)
People are always talking about' the problem of youth '. If there is one--whichI take leave to doubt--then it is older

• 新概念英语第四册Lesson 6 The sporting spirit (2007-02-08)
I am always amazed when I hear people saying that sport creates goodwill betweenthe nations, and that if only the commo

• 新概念英语第四册Lesson 7 Bats (2007-02-08)
Not all sounds made by animals serve as language, and we have only to turn tothat extraordinary discovery of echo-locat

• 新概念英语第四册Lesson 8 Trading standards (2007-02-08)
Trading standards             贸易标准First listen and then

• 新概念英语第四册Lesson 9 Royal espionage (2007-02-08)
Alfred the Great acted as his own spy, visiting Danish camps disguised as aminstrel. In those days wandering minstrels

• 新概念英语第四册*Lesson 10 Silicon valley (2007-02-08)
Technology trends may push Silicon Valley back to the future. Carver Mead, a pioneer in integrated circuitsand a profes

• 新概念英语第四册Lesson 11 How to grow old (2007-02-08)
Some old people are oppressed by the fear of death. In the young there is a justification for this feeling.Young men wh

• 新概念英语第四册Lesson 12 Banks and their customers (2007-02-08)
When anyone opens a current account at a bank, he is lending the bank money, repayment of which hemay demand at any tim

• 新概念英语第四册Lesson 13 The search for oil (2007-02-08)
The deepest holes of all are made for oil, and they go down to as much as 25,000feet. But we do not need to send men do

• 新概念英语第四册Lesson 14 The Butterfly Effect (2007-02-08)
Beyond two or three days, the world’s best weather forecasts are speculative, and beyond six or seven theyare worthles

• 新概念英语第四册Lesson 15 Secrecy in industry (2007-02-08)
Two factors weigh heavily against the effectiveness of scientific in industry.One is the general atmosphere of secrecy

• 新概念英语第四册Lesson 16 The modern city (2007-02-08)
In the organization of industrial life the influence of the factory upon the physiological and mental state ofthe worke

• 新概念英语第四册Lesson 17 A man-made disease (2007-02-08)
In the early days of the settlement of Australia, enterprising settlers unwiselyintroduced the European rabbit. This ra

• 新概念英语第四册Lesson 18 Porpoises (2007-02-08)
There has long been a superstition among mariners that porpoises will savedrowning men by pushing them to the surface,

• 新概念英语第四册Lesson 19 The stuff of dreams (2007-02-08)
How it came about that snakes manufactured poison is a mystery. Over theperiods their saliva, a mild, digestive juice l

• 新概念英语第四册Lesson 20 Snake poison (2007-02-08)
How it came about that snakes manufactured poison is a mystery. Over theperiods their saliva, a mild, digestive juice l

• 新概念英语第四册Lesson 21 William S. Hart and the early ‘Western’ film (2007-02-08)
William S. Hart was, perhaps, the greatest of all Western stars, for unlike GaryCooper and John Wayne he appeared in no

• 新概念英语第四册Lesson 22 Knowledge and progress (2007-02-08)
Why does the idea of progress loom so large in the modern world ? Surely becauseprogress of a particular kind is actual

• 新概念英语第四册Lesson 23 Bird flight (2007-02-08)
No two sorts of birds practise quite the same sort of flight; the varieties are infinite,but two classes may be roughly

• 新概念英语第四册Lesson 24 Beauty (2007-02-08)
A young man sees a sunset and, unable to understand or to express the emotionthat it rouses in him, concludes that it m

• 新概念英语第四册Lesson 25 Non-auditory effects of noise (2007-02-08)
Many people in industry and the Services, who have practical experience ofnoise, regard any investigation of this quest

• 新概念英语第四册Lesson 26 The past life of the earth (2007-02-08)
It is animals and plants which lived in or near water whose remains are mostlikely to be preserved, for one of the nece

• 新概念英语第四册Lesson 27 The ‘Vasa’ (2007-02-08)
From the seventeenth-century empire of Sweden, the story of a galleon thatsank at the start of her maiden voyage in 162

• 新概念英语第四册Lesson 28 Patients and doctors (2007-02-08)
This is a sceptical age, but although our faith in many of the things in which ourforefathers fervently believed has we

• 新概念英语第四册Lesson 29 The hovercraft (2007-02-08)
Many strange new means of transport have been developed in our century, thestrangest of them being perhaps the hovercra

• 新概念英语第四册Lesson 30 Exploring the sea-floor (2007-02-08)
Our knowledge of the oceans a hundred years ago was confined to the two-dimensionalshape of the sea-surface and the haz

• 新概念英语第四册Lesson 31 The sculptor speaks (2007-02-08)
Appreciation of sculpture depends upon the abi8lity to respond to form in threedimensions. That is perhaps why sculptur

• 新概念英语第四册Lesson 32 Galileo reborn (2007-02-08)
In his own lifetime Galileo was the centre of violent controversy; but the scientificdust has long since settled, and t

• 新概念英语第四册Lesson 33 Education (2007-02-08)
Education is one of the key words of our time. A man without an education,many of us believe, is an unfortunate victim

• 新概念英语第四册Lesson 34 Adolescence (2007-02-08)
Parents are often upset when their children praise the homes of their friends andregard it as a slur on their own cooki

• 新概念英语第四册Lesson 35 Space odyssey (2007-02-08)
The Moon is likely to become the industrial hub of the Solar System, supplying the rocket fuels for its ships,easily ob

• 新概念英语第四册Lesson 36 The cost of government (2007-02-08)
If a nation is essentially disunited, it is left to the government to hold it together.This increases the expense of go

• 新概念英语第四册Lesson 37 The process of ageing (2007-02-08)
At the age of twelve years, the human body is at its most vigorous. It has yet toreach its full size and strength, and

• 新概念英语第四册Lesson 38 Water and the traveler (2007-02-08)
Contamination of water supplies is usually due to poor sanitation close to water sources, sewage disposalinto the sourc

• 新概念英语第四册Lesson 39 What every writer wants (2007-02-08)
I have known very few writers, but those I have known, and whom I respected,confess at once that they have little idea

• 新概念英语第四册Lesson 40 Waves (2007-02-08)
Waves are the children of the struggle between ocean and atmosphere, the ongoing signatures of infinity. Raysfrom the s

• 新概念英语第四册Lesson 41 Training elephants (2007-02-08)
Two main techniques have been used for training elephants, which we may call respectively the tough and thegentle. The

• 新概念英语第四册Lesson 42 Recording an earthquake (2007-02-08)
An earthquake comes like a thief in the night, without warning. It was necessary, therefore, to inventinstruments that

• 新概念英语第四册Lesson 43 Are there strangers in space? (2007-02-08)
We must conclude from the work of those who have studied the origin of life, that given a planet onlyapproximately like

• 新概念英语第四册Lesson 44 Patterns of culture (2007-02-08)
Custom has not been commonly regarded as a subject of any great moment. The inner workings of our ownbrains we feel to

• 新概念英语第四册Lesson 45 Of men and galaxies (2007-02-08)
In man's early days, competition with other creatures must have been critical.But this phase of ourdevelopment is now f

• 新概念英语第四册Lesson 46 Hobbies (2007-02-08)
A gifted American psychologist has said, 'Worry is a spasm of the emotion; the mind catches hold of somethingand will n

• 新概念英语第四册Lesson 47 The great escape (2007-02-08)
Economy is one powerful motive for camping, since after the initial outlay upon equipment, or through hiringit, the tot

• 新概念英语第四册Lesson 48 Planning a share portfolio (2007-02-08)
There is no shortage of tipsters around offering ‘get-rich-quick’ opportunities. But if you are a serious privateinve

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