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VOA常速英语听力2012年09月合辑(文本):Silent-Spring-Turns-Fifty

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更新时间2012-12-16 10:47:37

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washington, d.c. fifty years ago, rachel carson wrote and published silent spring. carson was ahead of her time. she said pesticides like ddt were damaging the environment and human health. although the book became an inspiration for the environmental movement, the battle for the environment continues.

 

in the 1950s, the u.s. department of agriculture was spraying more than a quarter-million kilograms of pesticides each year. silent spring, by rachel carson, revealed that pesticides like ddt were lethal not only for insects but for all living things.

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VOA常速英语听力2012年09月合辑(文本):Silent-Spring-Turns-Fifty

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