考研英语阅读能力的进步,依靠的是长期不懈地努力与坚持!下面,北京文都考研网为助2020考研者一臂之力,分享了考研英语时事阅读:智能手机跟农业结合,供考生参考。
2020考研英语时事阅读:智能手机跟农业结合
Late blight is a common disease of plants such as tomatoes and potatoes, capable of wiping out entire crops on commercial-scale fields. Caused by a fungus-like pathogen, it first appears as black or brown lesions on leaves, stems, fruit or tubers. If conditions are favorable, it can quickly spread to other plants through wet soil and as wind-scattered spores. In the mid-nineteenth century, late blight famously caused the Irish potato famine. Today it still causes more than 6.7 billion dollars in annual losses worldwide.
But farmers may have a new weapon to add to the arsenal. The technology, designed by researchers at North Carolina State University, relies on the science of subtle plant odors, and it can recognize sick plants early by employing a simple test strip that plugs into a reader on a smartphone.
Plants emit signaling chemicals from their leaves, not unlike the pheromones released by humans. “If a plant is diseased, the type and concentration of these volatile organic compounds changes,” said Qingshan Wei, a biomolecular engineer at NC State University.
文本选自:The New York Times(纽约时报)
【单词】
blight
英 [blaɪt] 美 [blaɪt]
v. 损害;妨害;贻害
n. (农作物等的)枯萎病,疫病;(对局势、生活或环境)有害的事物,不利因素
fungus
英 [ˈfʌŋɡəs] 美 [ˈfʌŋɡəs]
n. 真菌(如蘑菇和霉);霉;霉菌
scatter
英 [ˈskætə(r)] 美 [ˈskætər]
v. 撒;撒播;散开;四散;使分散;驱散
n. 散落;三三两两;零零星星
emit
英 [iˈmɪt] 美 [iˈmɪt]
v. 发出,射出,散发(光、热、声音、气等)
【参考译文】
晚疫病是一种在西红柿和土豆上常见的植物病害,能够大规模的摧毁所有农作物。它由类似真菌的病原体引起,首先在叶子、茎、果实或块茎上出现黑色或棕色病变。在适宜的环境中,它会通过潮湿的土壤迅速传染其他植物,就和借风力传播的孢子一样。在19世纪中期,晚疫病引发了著名的爱尔兰马铃薯饥荒。现今,全球每年(因晚疫病导致的)损失仍超过67亿美元。
但是可能有一种新型武器可以补充农民们的装备。这项由北卡罗来纳州立大学研究人员设计的技术依于微妙的植物气味科学,可以通过一个智能手机传感器中植入的简单测试带,及早检测出植物的病害。
植物从叶片中释放出化学信号物质,就像人类释放的外激素一样。北卡罗来纳州立大学生物分子工程师魏青山表示,“如果植物患病,这些挥发性有机化合物的类型和浓度就会发生变化。”
以上是北京文都考研网给出的“2020考研英语时事阅读:智能手机跟农业结合”,希望对考生在英语提升方面有所帮助!祝2020考研成功!
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