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-code map showing where plants were running fevers. Farmers could then spot-spray, using 50 to70 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 精品文档．
精品文档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 Agricultrue, thinks re- mote 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.
In order to apply pesticide spraying precisely, we can use 52题第 infrared scanning to__________. B.drew a color-ceded map A.locate the problem areas
D.estimate the damage to the C.measure the size of the affected area crops A 答案：
Farmers can save a considerable amount of pesticide by__________. 题 第53B.consulting infrared scanning experts A.transforming poisoned rain D.detecting crop problems at an early C.resorting to spot-spraying date C 答案：
Plants will emit an increased amount of heat when they 题 第54are__________. B.in pour physical condition A.sprayed with pesticides D.exposed to excessive sun rays C.facing an infrared scanner B 答案：
The application of infrared scanning technolgy to agriculture met
55 第题 精品文档．
精品文档with some difficulties due to__________. B.its high cost
A.the lack of official support
D.the lack of financial support C.its failure to help increase production D五、补全对话 答案： 根据以下内容，回答下面试题。 A.We'll show you our photos when we are back. B. We are going with our teachers.
C. We are going to Paris. D. When are you leaving?
E. How long are you going to stay there? F. Have you been there before? G. I want to go to London. H. See you later.
A: Hi, Xiao Wang. Where are you going on vacation? B: 56 __________.
A: Paris? That sounds great! 57 __________. B: We are leaving next Tuesday. A: Who are you going with? B: 58 __________. A: 59 __________.
B: For about two weeks. 60__________. A : Great ! Wish you a pleasant journey!
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精品文档B: Thanks a lot.
)
请选择最佳答案填入( 第56题
A.We'll show you our photos when we are back. B. We are going with our teachers. C. We are going to Paris. D. When are you leaving?
E. How long are you going to stay there? F. Have you been there before? G. I want to go to London. H. See you later. C 答案： )
请选择最佳答案填入( 题 第57
A.We'll show you our photos when we are back. B. We are going with our teachers. C. We are going to Paris. D. When are you leaving?
E. How long are you going to stay there? F. Have you been there before?
G. I want to go to London. H. See you later. D 答案：)
( 58 第题请选择最佳答案填入 精品文档．
精品文档A.We'll show you our photos when we are back. B. We are going with our teachers. C. We are going to Paris. D. When are you leaving?
E. How long are you going to stay there? F. Have you been there before? G. I want to go to London. H. See you later. B 答案： )
请选择最佳答案填入(第 59题A.We'll show you our photos when we are back. B. We are going with our teachers. C. We are going to Paris. D. When are you leaving?
专升本专升本英语考试模拟试题及答案
