Even better, Paley’s Remote Scanning Services Company could detect crop problems before they became visible to the eye. Mounted on a plane flown at 3, 000 feet at night, an infrared scanner measured the heat emitted by crops. The data were transformed into a color-coded map showing where plants were running“fevers”. Farmers could then spot-spray, using 50 to 70 percent less pesticide than they otherwise would.

　　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 ff Paley finds the financial backing which he failed to obtain 10 years ago.

　　16．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

　　．In order to apply pesticide spraying precisely, we can use infrared scanning to____________.

【2016届高考英语二轮专题复习阅读理解极限突破测试卷(27)】相关文章：

★ 【课堂新坐标】2017届高考英语（通用版）二轮复习短文改错专题训练：模式1 缺一词（含解析）

★ 2017届高考英语二轮复习课时训练：12（含解析）

★ 重庆市2014高考英语阅读理解一轮（精品）训练题（15）附答案

★ 2017届高考英语二轮复习大题冲关秘籍短文改错：解题策略（含解析）

★ 2014届高考英语一轮复习课时作业(四十三)选修8Module 1《Deep South》（外研版）

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (22)

★ 2017年高考英语二轮复习精品资料：专题14 阅读理解（教学案）（原卷版）

★ 2017届高考英语二轮复习大题冲关秘籍阅读理解七选五：创新押题（含解析）

★ （全国通用）2014届高考英语一轮单元复习 限时强化训练四

★ 2017届高考英语二轮复习大题冲关秘籍阅读理解七选五：考纲解读（含解析）