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2020职称英语概括大意练习题(1)

2020职称英语概括大意练习题(1)
2020职称英语概括大意练习题(1)

2020职称英语概括大意练习题(1)

Electromagnetic Energy

1 White light seems to be a combination of all colors. The energy that comes from a source of light is not limited to the kind of energy you can see. Heat is given off by a flame or an electric light. On a cloudy day it is possible to get a sunburn even though you feel cool. Visible light and the kinds of energy that produce warmth and sunburn are examples of electromagnetic energy.

2 The sun is 9

3 million miles from the earth. Yet we can use energy from the sun because electromagnetic energy

travels through space.

3 Many other kinds of energy are also types of electromagnetic energy. Radio, television, and radar signals travel from transmitters to receivers as low瞖nergy electromagnetic waves. Infrared(红外线的) radiation is an electromagnetic wave. When it is absorbed by matter, heat is produced. Waves of infrared and visible light have more energy than waves of radio, television, or radar. Ultraviolet rays(紫外线) and X rays are electromagnetic waves with even greater amounts of energy. Infrared radiation is used in cooking food and heating buildings. Sunlight and electric lights are part of our requirements for normal living. Ultraviolet radiation is useful in killing certain disease organisms. X rays and gamma rays have so much energy that they travel right through solid objects. They can be used to detect and treat cancer. X rays are used in industry to find

hidden cracks in metal, and in medicine to reveal broken bones.

4 Usually we use electricity to generate electromagnetic energy. The source of most of our energy is the sun. Heat from the sun causes water to evaporate. When the water falls to the earth as rain, some of it is trapped behind dams and then used to operate electric generators. Other generators are powered by coal, but the energy stored in coal came from the sun, too.

5 Until recently, the source of the tremendous amount of energy given off by the sun was a puzzle. If the sun depended on chemical reactions, it would have used up all its energy long ago. Experiments with electromagnetic radiation led to the theory that mass can be converted into energy. About

forty years after the theory was proposed, nuclear energy was harnessed(利用) by man. Chemical energy comes from

electron(电子) rearrangement. Nuclear energy comes from a change in the nucleus of an atom. Compared with chemical reactions, nuclear reactions release millions of times more energy per pound of fuel. We now believe that the sun餾energy comes from the nuclear reactions in which hydrogen is changed into helium(氦).

6 Nuclear energy is beginning to compete with coal as an economical source of power to generate electricity. It is also being used to operate engines in large ships. Scientists continue to seek new and better methods of obtaining and using energy.

1 Paragraph 3

2 Paragraph 4

3 Paragraph 5

4 Paragraph 6

A The Most Important Source of Energy

B Types of Electromagnetic Energy

C The Machines Used for Energy Generation

D Seeking New Sources of Energy

E The Use of Ultraviolet Radiation in Medicine

F Nuclear Reactions as the Lasting Source of the Sun’s Energy

5 One can get a sunburn even

6 Infrared radiation can produce heat

7 X-rays and gamma rays can be used to detect and treat cancer

8 Chemical energy is generated

A when it is cloudy

B because they can pass through solid objects

C when the sun-rays are fierce

D when a change in the nucleus of an atom takes place

E when electron rearrangement takes place

F when it is absorbed by matter

参考答案

1 B

2 A

3 F

4 D

5 A

6 F

7 B

8 E

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Intelligence was believed to be a fixed entity, some faculty of the mind that we all possess and which determines in some way the extent of our achievements. Its value therefore,was as a predictor of children's future learning. If they differed markedly in their ability to learn'complex tasks, then it was clearly necessary to educate them differently and the need for different types of school and even different ability groups within school was obvious.Intelligence tests could be used for streaming children according to ability at an early age; and at 11 these tests were superior to measures of attainment for selecting children for different types of secondary education. 2. Today, we are beginning to think differently. In the last few years, research has thrown doubt on the view that innate intelligence can ever be measured and on the very nature of intelligence itself. There is considerable evidence now which shows the great influence of environment both on achievement and intelligence. Children with poor home backgrounds not only do less well in their school work and intelligence tests but their performance tends to deteriorate gradually compared with that of their more fortunate classmates. 3. There are evidences that support the view that we have to distinguish between genetic intelligence and observed intelligence. Any deficiency in the appropriate genes will restrict development no matter how stimulating the environment. We cannot observe and measure innate intelligence, whereas we can observe and measure the effects of the interaction of whatever is inherited with whatever stimulation has been received from the environment. Researches have been investigating what happens in this interaction. 4.Two major findings have emerged from these researches. Firstly, the greater part of the development of observed intelligence occurs in the earliest years of life. It is estimated that 50 percent of measurable intelligence at age 17 is already predictable by the age of four. Secondly, he most important factors in the environment are language and psychological aspects of the parent-child relationship. Much of the difference in measured intelligence between "privileged" and "disadvantaged" children may be due to the latter's lack of appropriate verbal stimulation and the poverty of their perceptual experiences 5. These research findings have led to a revision in our understanding of the nature of intelligence. Instead of it being some largely inherited fixed power of the mind, we now see itas a set of developed skills with which a person, copes with any environment. These skills have to be learned and, indeed, one of them is learning how to learn. 6.The modem ideas concerning the nature of intelligence are bound to have some effect on our school system. In one respect a change is already occurring. With the move toward comprehensive education and the development of unstreamed classes, fewer children will be given the label "low IQ7'' which must inevitably condemn a child in his own, if not society's eyes. The idea that we can teach children to be intelligent in the same way that we can teach them reading or arithmetic is accepted by more and more people. Is There a Way to Keep the Britain…s Economy Growing? 1.Paragraph 2 E Gift of talking 2.Paragraph 3 C Strength of the Creative Economy 3.Paragraph 4 D Weakness of the Creative Economy 4.Paragraph 5 B “Servant” Economy 5.Every country has its own way C to feed its people. 6.The British government doesn't seem_F to worry about the British economy_. 7.The creative industries find it difficult_E to make a profit. 8.Many graduates are employed B to do low-skill lobs. 1.In to day′s knowledge economy, nations survive on the things they do best.Japanese design electronics while Germens export engineering techniques.The French serve,the best food and Americans make computers. 2.Britain specializes in the gift of talking.The nation doesn′t manufacture much of anything.But it has lawyers,stylists and business consultants who earn their living from talk talk and more talk.The World Foundation think tank says the UK′s four iconic jobs today are not scientists,engineers,teachers and nurses.Instead,they′re hairdressers,celebrities,management consultants and managers.But can all this talking keep the British economy going? The British government thinks it can. 3.Although the country′s trade deficit was more than£60 billion in 2006,UK′s l argest in the postwar period,officials say the country has nothing to worry about.In fact,Britain does have a world-class pharmaceutical industry?and it still makes a small sum from selling arms abroad.It also trades services-accountancy,insurance,banking and advertising.The government believes Britain is on the cutting edge of the knowledge economy.After all,me country of Shakespeare and Wordsworth has a literary tradition of which to be proud.Rock…n?roll is an English language medium,and there are billions to be made by their cutting-edge bands.In other words,the creative economy has plenty of strength to carry the British economy. 4.However, creative industries account for only about 4 percent of UK′s exports of goods and services.The industries are finding it hard to make a profit,according to a report of the National Endowment for Science,Technology and the Arts The report shows only 38 percent of British companies were engaged in ”innovation activities”,3 percentage points below the EU average and well below Germany(61 percent)and Sweden(47 percent). 5.In fact,it might be better to call Britain a “servant”economy-there are at least 4 million people“in service”.The majority of the population are employed by the rich to cook,clean,and take care of their children.Many graduates are even doing menial jobs for which they do not need a degree.Most employment growth has been,and will continue to be,at the low-skill end of the service sector-in shops,bars,hotels,domestic service and in nursing and care homes.

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