2. 考研
  3. Even plants can run a fever, especially when they are under attack by insects or disease. But (1)_____ humans, plants can have t

Even plants can run a fever, especially when they are under attack by insects or disease. But (1)_____ humans, plants can have t

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问题     Even plants can run a fever, especially when they are under attack by insects or disease. But (1)_____ humans, plants can have their temperature (2)_____ from 3,000 feet away—straight up. A decade ago, (3)_____ the infrared scanning technology developed for military purpose and other satellites, physicist Stephen Paley (4)_____ a quick way to take the temperature of crops to determine (5)_____ ones are under stress. The goal was to let farmer (6)_____ target pesticide spraying (7)_____ rain poison on a whole field, which (8)_____ include plants that don’t have the pest problem.
    Even better, Paley’s Remote Scanning Services Company could detect crop problem before they became (9)_____ to the eye. Mounted on a plane flown at 3,000 fee (10)_____, an infrared scanner measured the heat emitted by crops. The data were (11)_____ into a color-coded map showing (12)_____ plants were running "fevers". Farmers could then spot spray, using 50 to 70 percent less pesticide than they (13)_____ would.
    The bad news is that Paley’s company closed down in 1984, after only three years. Farmers (14)_____ the new technology and long-term backers were hard (15)_____. But with the renewed concern about pesticides on produce, and refinements in infrared scanning, Paley hopes to (16)_____ into operation. Agriculture experts have no doubt about the technology works. "This technique can be used (17)_____ 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 (18)_____ infrared crop scanning could be adopted by the end of the decade. But (19)_____ Paley finds the financial backing (20)_____ he failed to obtain 10 years ago.

选项 A、whose
B、which
C、what
D、where
答案B
解析 此题属于语法题，在四个选项中，只有which可以放在ones前面，意指哪一些植物，故选项which正确。全句可译为：十年前，物理学家佩利采用军用红外扫描技术为测量植物体温找到了一个快捷方式，从而可以确定哪些植物正在遭受病虫害的威胁。
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考研英语一

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