GRE阅读高频机经：寂静的春天_GRE阅读

GRE阅读高频机经：寂静的春天

　　But there were dissenters. Norman Borlaug, the 1970 Nobel Peace Prize winner, led thedefense of pesticides.Were having troubles now feeding this hungry world, said Borlaug. Ifyou remove DDT with the hysteria that is present in the USA, the U.S. will be importing food,only there wont be any place from where to import it. By 1972, DDT was banned foragricultural use in the U.S. But thousands of new chemicals were being developed. NFor years,the U.S. Senates Committee on the Environment has been trying to ban or control hundredsof chemicals from agricultural products and consumer goods. This committee heard from CDC officials who told us their scientists found 212 industrialchemicals, including six carcinogens, coursing through Americans bodies, said DemocraticSenator Frank Lautenberg. In 2006, the World Health Organization announced plans to useDDT again - indoors - in its campaign against malaria. Syngenta is a major producer ofagricultural chemicals. Like others in the industry, it says its chemicals are safe if used properly. We try to do every single study that is necessary to support the safety characteristics of theproduct. said Tim Pastoor, the companys principal scientist. Fifty years after Silent Spring,millions of kilograms of new pesticides and other chemicals are being sprayed across USfarmlands. And the environmental movement is still fighting back.