[外语类试卷]职称英语理工类A级(概括大意与完成句子)模拟试卷1及答案与解析.doc
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1、职称英语理工类 A级(概括大意与完成句子)模拟试卷 1及答案与解析 一、 概括大意与完成句子 (第 23-30题,每题 1分,共 8分 ) 下面的短文后有 2项测试任务: (1)第 23-26题要求从所给的 6个选项中为第 2-5段每段选择一个最佳标题; (2)第 27-30题要求从所给的 6个选项中为每个句子确定一个最佳选项。 0 Electromagnetic Energy White light seems to be a combination of all colors. The energy that comes from a source of light is not limi
2、ted 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. The sun is 93 million mil
3、es from the earth. Yet we can use energy from the sun because electromagnetic energy travels through space. Many Other kinds of energy are also types of electromagnetic energy. Radio, television, and radar signals travel from transmitters to receivers as low-energy electromagnetic waves. Infrared(红外
4、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 radiatio
5、n 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
6、 to detect and treat cancer. X-rays are used in industry to find hidden cracks in metal, and in medicine to reveal broken bones. 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 fal
7、ls 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. Until recently, the source of the tremendous amount of energy given off by the sun was a puzzle. If the
8、 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 fro
9、m 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 suns energy comes from the nuclear reactions in which hydrogen is changed i
10、nto helium(氦 ). 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. A. Nuclear Reactions as the Lasting So
11、urce of the Suns Energy B. The Most Important Source of Energy C. Types of Electromagnetic Energy D. The Machines Used for Energy Generation E. Seeking New Sources of Energy F. The Use of Ultraviolet Radiation in Medicine 1 Paragraph 3_. 2 Paragraph 4_. 3 Paragraph 5_. 4 Paragraph 6_. 4 A. when it i
12、s absorbed by matter B. when it is cloudy C. because they can pass through solid objects D. when the sunrays are fierce E. when a change in the nucleus of an atom takes place F. when electron rearrangement takes place 5 One can get a sunburn even_. 6 Infrared radiation can produce heat_. 7 X-rays an
13、d gamma rays can be used to detect and treat cancer_. 8 Chemical energy is generated_. 8 Cloning(克隆 ): Future Perfect? A clone is all exact copy of a plant or animal produced from any one cell. Since Scottish scientists reported that they had managed to clone a sheep named Dolly in 1997, research in
14、to cloning has grown rapidly. In May 1998, scientists in Massachusetts managed to create two identical calves(牛犊 )using cloning technology. A mouse has also been cloned successfully. But the debate over cloning humans really started when Chicago physicist Richard Seed made a surprising announcement,
15、 “We will have managed to clone a human being within the next two years,“ he told the world. Seeds announcement provoked a lot of media attention, most of it negative. In Europe, nineteen nations have already signed an agreement banning human cloning and in the US the President announced, “We will b
16、e introducing a law to ban all human cloning and many states in the US will have passed anti-cloning laws by the end of the year. “ Many researchers are not so negative about cloning. They are worried that laws banning human cloning will threaten important research. In March, The New England Journal
17、 of Medicine called any plan to ban research on cloning humans seriously mistaken. Many researchers also believe that in spite of attempts to ban it, human cloning will have become routine by 2010 because it is impossible to stop the progress of science. Is there reason to fear that cloning will lea
18、d to a nightmare world? The public has been bombarded(轰炸 )with newspaper articles, television shows and films, as well as cartoons. Such information is often misleading, and makes people wonder what on earth the scientists will be doing next. Within the next five to ten years scientists will probabl
19、y have found a way of cloning humans. It could be that pretty soon we will be able to choose the person that we want our child to look like. But how would it feel to be a clone among hundreds, the anti-cloners ask. Pretty cool, answer the pro-cloners(赞成克隆的人 ). A. Strong reactions B. Anxiety about th
20、e future of cloning C. The right to choose D. What is cloning? E. Arguments in favor of cloning F. A common sight 9 Paragraph 1_. 10 Paragraph 2_. 11 Paragraph 3_. 12 Paragraph 4_. 12 A. the nucleus of a cell B. cloned human beings C. a human being in two years D. a law to ban human cloning E. a rep
21、ort on human cloning F. heavy media coverage 13 Richard Seed claimed to be able to clone_. 14 Richard Seeds announcement received_. 15 The United States will introduce_. 16 Within ten years scientists will probably have_. 16 Eco-fashion What is eco-fashion? Eco-fashion is a complex phenomenon and th
22、e common use of the term covers two aspects of fashion “ecological“ and “ethical“. Ecological(生态的 )fashion usually refers to textile(织物 )and clothing production processes and the environmental issues surrounding them; ethical(伦理的 )fashion generally relates to the working conditions involved in the p
23、roducing processes. What are the problems with fashion? Firstly, the production of textiles pollutes the environment heavily. Cotton-planting uses pesticides; sheep-farming and wool-cleaning contribute to global warming; synthetics-making(人造纤维生产 )brings about harmful waste. Secondly, every stage of
24、clothing production has a significant effect on the environment. They all use a great deal of energy, and some also involve harmful chemicals. In addition to this, there is a lot of waste produced in the process, especially in the form of polluted water. Thirdly, growing consumption levels and our s
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