2014.11.22雅思考试阅读考题回顾

朗阁海外考试研究中心 周智勇

考试日期

2014年11月22日

Reading Passage 1
Title	Radio automation 收音机的制作和新旧比较（2013.04.06 P1）
Question types	流程图填空 7题 Summary填空 4题单选题 2题
文章内容回顾	收音机的生产自动化过程。一开始说收音机制作耗费人力，引起了失败。自动化生产后，人们只需要前期输入和后期加工就可以完成。芯片的研究节省了劳动力。录音机的体积也变小，可供更多人使用。但自动化生产也带来了工人失业的弊端。
相关英文原文阅读	Radio is the radiation (wireless transmission) of electromagnetic signals through the atmosphere or free space. Information, such as sound, is carried by systematically changing (modulating) some property of the radiated waves, such as their amplitude, frequency, phase, or pulse width. When radio waves strike an electrical conductor, the oscillating fields induce an alternating current in the conductor. The information in the waves can be extracted and transformed back into its original form. Radio systems need a transmitter to modulate (change) some property of the energy produced to impress a signal on it. Some types of modulation include amplitude modulation and frequency modulation. Radio systems also need an antenna to convert electric currents into radio waves, and vice versa. An antenna can be used for both transmitting and receiving. The electrical resonance of tuned circuits in radios allows individual stations to be selected. The electromagnetic wave is intercepted by a tuned receiving antenna. A radio receiver receives its input from an antenna and converts it into a form usable for the consumer, such as sound, pictures, digital data, measurement values, navigational positions, etc. Radio frequencies occupy the range from a 3 kHz to 300 GHz, although commercially important uses of radio use only a small part of this spectrum. A radio communication system sends signals by radio. The radio equipment involved in communication systems includes a transmitter and a receiver, each having an antenna and appropriate terminal equipment such as a microphone at the transmitter and a loudspeaker at the receiver in the case of a voice-communication system. 1-7 流程图填空：制作radio的过程 1. (primitive) chip 2. girt 3. milling machine 4. robot hands 5. loudspeaker 6. valves 7. Melton Zinc 8-11 Summary填空题为何自动化？因为8. cost太贵；因为有很多的9. (separate) components, 所以很麻烦；研究10. chip; 后来重量11. lighter后，运费也变便宜了。 12-13 单选题 12. 推出这个radio后，工人们的反应？选：他们担心这会带来就业率的降低因为较后一段提及自动化影响工人就业，关键词有：expert's idealism, but worker different, labour force。 13. 选文章标题选：an application of the automation in the early stage 因为文章后半部分都在说遇到了很多冷遇cooled ground。
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