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20xx年12月大學英語六級考試聽力原文-資料下載頁

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【正文】 it,” I explained, “not only are most TV programs badly written and produced, but viewers are also manipulated by the mass media. As far as I am concerned, TV watchers are cut off from reality from nature, from the other people, from life itself! I was confident in my ability to persuade.After a short silence, my roommate said, “Anyway, I’ve been planning to watch the football game. I am going to change the channel.”“Don’t touch that dial!” I shouted, “I wanted to find out how the mystery turns out!”I am not sure I got my point to cross.Questions 33 35 are based on the passage you have just heard.33. As the speaker walked into the living room, what was being shown on TV?34. What does the speaker say about watching television?35. What can we say about the speaker?Section C Compound DictationIn the past, one of the biggest disadvantages of machines has been their inability to work on a micro scale. For example, doctors did not have devices allowing them to go inside the human body to detect health problems or to perform delicate surgery. Repair crews did not have a way of identifying broken pipes located deep within a highrise apartment building. However, that’s about to change. Advances in puters and biophysics have started a micro miniature revolution that allows scientists to envision and in some cases actually build microscopic machines. These devices promise to dramatically change the way we live and work.Micromachines already are making an impact. At Case Western Reserve University in Cleveland, Ohio, research scientists have designed a 4inch silicon chip that holds 700 tiny primitive motors. At Lucas Nova Sensor in Fremont, California, scientists have perfected the world’s first microscopic bloodpressure sensor. Threaded through a person’s blood vessels, the sensor can provide blood pressure readings at the valve of the heart itself.Although simple versions of miniature devices have had an impact, advanced versions are still several years away.Auto manufacturers, for example, are trying to use tiny devices that can sense when to release an airbag and how to keep engines and breaks operating efficiently. Some futurists envision nanotechnology also being used to explore the deep sea in small submarine, or even to launch fingersized rockets packed with micro miniature instruments.“There is an explosion of new ideas and applications,” So, when scientists now think about future machines doing large and plex tasks, they’re thinking smaller than ever before.7

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