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1、大家论坛2010年职称英语考试基础知识通关训练（23）训练内容：概括大意与完成句子 训练要求： 阅读下面这篇短文，短文后有2项测试任务：(1) 第2326题要求从所给的6个选项中为第36段每段选择1个正确的小标题；(2) 第2730题要求从所给的6个选项中选择4个正确选项，分别完成每个句子。请将答案涂在答题卡相应的位置上。 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
2、 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 93 million mile
3、s 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 energy electromagnetic waves. Infrared(红
4、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 radiati
5、on 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 use
6、d 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
7、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. I
8、f 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 come
9、s 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 suns energy comes from the nuclear reactions in which hydrogen is chan
10、ged 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. 23 Paragraph 3 24 Paragraph 4 25
11、 Paragraph 5 26 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 Suns Energy 27 One can get a s
12、unburn even 28 Infrared radiation can produce heat 29 X-rays and gamma rays can be used to detect and treat cancer 30 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
13、when electron rearrangement takes place F when it is absorbed by matter答案： 23 B 24 A 25 F 26 D 27 A 28 F 29 B 30 E2010年职称英语考试基础知识通关训练（24） 训练内容：阅读理解 训练要求： 阅读下面的短文，短文后有5道题，每题后面有4个选项。请仔细阅读短文并根据短文回答其后面的问题，从4个选项中选择1个最佳答案涂在答题卡相应的位置上。 Hercules Once upon a time there was a great Greek hero, Hercules. He was
14、 taller and stronger than anyone you have ever seen. On his shoulder he carried a club and in his hand be held a bow(弓). He was known as the hero of a hundred adventures. Hercules served a king. The king was afraid of him. So again and again he sent him on difficult tasks. One morning the king sent
15、for him and told him to fetch three golden apples for him from the garden of the Singing Maidens(歌女). But no one knew where the garden was. So Hercules went away. He walked the whole day and the next day and the next. He walked for months before he saw mountains far in the distance one fine morning. One of the mountains was in the shape of a man, with long, long legs and arms and huge shoulders and a huge head. He was holding up the sky. Hercules knew
