Juan Louis, a junior geology major, decided to give an【B1】______speech about

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问题 Juan Louis, a junior geology major, decided to give an【B1】______speech about how earthquakes occur. From his audience and analysis he learned that only 2 or 3 of his classmates knew much of anything about geology. Juan realized then that he must present his speech at an【B2】______level and with a minimum of scientific language. As he prepared the speech, Juan kept asking himself, "How can I make this clear and【B3】______to someone who knows nothing about earthquakes or geological【B4】______?" Since he was speaking in the Midwest, he decided to begin by noting that the most severe earthquake in American history【B5】______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【B6】______most of the cities in the Mississippi valley. That, he figured, should get his classmates’【B7】______. Throughout the body of the speech, Juan dealt only with the basic mechanics of earthquakes and carefully avoided technical【B8】______. He also prepared visual aids, diagramming fault line, so his classmates wouldn’t【B9】______. To be absolutely safe, Juan asked his roommate, who was not a geology major, to listen to the speech. "Stop me," he said, "any time I say something you don’t understand." Juan’s roommate stopped him four times. And at each spot, Juan【B10】______a way to make his point more clearly. Finally, he had a speech that was interesting and perfectly understandable to his audience. [br] 【B1】

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Juan Louis, a junior geology major, decided to give an【B1】______speech about

[originaltext]M:I’mreallyworriedaboutthespeechI’mgoingtogivetonight.

[originaltext]M:I’mreallyworriedaboutthespeechI’mgoingtogivetonight.