The bad news is that Paley’s company closed down in 1984, after only three years. Farmers resisted the new technology and long-term backers were hard to find. But with the renewed concern about pesticides on produce, and refinements in infrared scanning, Paley hopes to get back into operation. Agriculture experts have no doubt the technology works. “This technique can be used on 75 percent of agricultural land in the United States, ” says George Oerther of Texas A & M. Ray Jackson, who recently retired from the Department of Agriculture, thinks remote infrared crop scanning could be adopted by the end of the decade. But only if Paley finds the financial backing which he failed to obtain 10 years ago.
本篇是一篇说明文,主要介绍了将原用于军事和卫星的红外线扫描技术运用于农业的前景,人们为此所做出的努力及遇到的困难。 1. Plants will emit an increased amount of heat when they are _________ .
A. sprayed with pesticides B. facing an infrared scanner C. in poor physical condition D. exposed to excessive sun rays 【解析】选C。细节理解题。依据文章第二段“. . . an infrared scanner measured the heat emitted by crops. The data were transformed into a color-coded map showing where plants were running‘fevers’”,说明植物在发“高烧”,也就是说,“身体状况”不佳时才会散发热,所以选项C符合题意。
2. In order to apply pesticide spraying precisely, we can use infrared scanning to __________ .
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