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六级英语听力原文

　　Huang Louise, a junior geology major, decided to give an informative speech about how earthquakes occur. From his audience analysis, he learnt that only two or three of his classmates knew much of anything about geology. Huang realized then that he must present his speech at an elementary level and with a minimum of scientific language. As he prepared the speech, Huang kept asking himself: how can I make this clear and meaningful to someone who knows nothing about earthquakes or geological principles? Since he was speaking in the Midwest, he decided to begin by noting that the most severe earthquake in American history took place not in California or Alaska, but at New Madrid, Missouri in 1811. If such an earthquake happened today, it would be felt from the Rocky Mountains to the Atlantic Ocean and would flatten most of the cities in the Mississippi Valley. That, he figured, should get his classmates attention. Throughout the body of the speech, Huang doubt only with the basic mechanics of earthquakes and carefully avoided technical terms. He also prepared visual aids diagramming photo lines so his classmates wouldnt get confused. To be absolutely safe, Huang asked his roommate who was not a geology major to listen to the speech. Stop me, he said, Anytime I say something you dont understand. Huangs roommate stopped him four times. And at each spot, Huang worked out a way to make his point more clearly. Finally, he had a speech that was interesting and perfectly understandable to his audience.