题目列表(包括答案和解析)
Even plant can run a fever, especially when they’re under attack by insects or disease. But unlike human, plants can have their temperature taken from 3, 000 feet away - straight up. A decade ago, adopting the infrared (红外线)scanning technology developed for military purposes and other satellites, physicist Stephen Paley came up with a quick way to take the temperature of crops to determine which ones are under stress. The goal was to let farmers precisely target pesticide (杀虫剂)spraying rather than rain poison on a whole field, which invariably includes plants that don’t have pest (害虫)problems.
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.
56.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
57.In order to apply pesticide spraying precisely, we can use infrared scanning to________.
A. estimate the damage to the crops B. measure the size of the affected area
C. draw a color -coded map D. locate the problem area
58.Farmers can save a considerable amount of pesticide by________.
A. resorting to spot – spraying B. consulting infrared scanning experts
C. transforming poisoned rain D. detecting crop problems at an early stage
59.The application of infrared scanning technology to agriculture met with some difficulties________.,
A. the lack of official support B. its high cost
C. the lack of financial support D. its failure to help increase production
60.Infrared scanning technology may be brought back into operation because of________.
A. the desire of farmers to improve the quality of their produce
B. growing concern about the excessive use of pesticides on crops
C. the forceful promotion by the Department of Agriculture
D. full support from agricultural experts
Even plant can run a fever, especially when they’re under attack by insects or disease. But unlike human, plants can have their temperature taken from 3, 000 feet away - straight up. A decade ago, adopting the infrared (红外线)scanning technology developed for military purposes and other satellites, physicist Stephen Paley came up with a quick way to take the temperature of crops to determine which ones are under stress. The goal was to let farmers precisely target pesticide (杀虫剂)spraying rather than rain poison on a whole field, which invariably includes plants that don’t have pest (害虫)problems.
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.
56.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
57.In order to apply pesticide spraying precisely, we can use infrared scanning to________.
A. estimate the damage to the crops B. measure the size of the affected area
C. draw a color -coded map D. locate the problem area
58.Farmers can save a considerable amount of pesticide by________.
A. resorting to spot – spraying B. consulting infrared scanning experts
C. transforming poisoned rain D. detecting crop problems at an early stage
59.The application of infrared scanning technology to agriculture met with some difficulties________.,
A. the lack of official support B. its high cost
C. the lack of financial support D. its failure to help increase production
60.Infrared scanning technology may be brought back into operation because of________.
A. the desire of farmers to improve the quality of their produce
B. growing concern about the excessive use of pesticides on crops
C. the forceful promotion by the Department of Agriculture
D. full support from agricultural experts
第二节:完形填空(共20小题;每小题1.5分,满分30分)
Learning values and character at home is as important as any schoolwork. We all hope that the very values 36 are important to each of us are 37 along to our children. Often, 38 , that hope is challenged by a great many of pop culture messages, peer pressure (同伴压力), and overscheduled lives.
In the real world of jobs and career, people are 39 by two standards: Their professional skills and their 40 abilities. 41 grade school, high school, and college can teach skills and proficiency, it’s 42 parents to teach children the characters that make for 43 in the real world—a cooperative attitude, 44 , optimism and honesty. So take the work 45 . Send your kids into the world ready to 46 not only the tasks of life but its difficulties with character.
You really can’t start soon enough. 47 , children need personal integrity (个人操守) and morals as much as any adult. 48 the 5 to 10 most important messages you want your children to truly understand. Then think through 49 to teach these lessons. Talking to your kids should be only 50 of the plan. Letting them 51 honesty in action—through your own behaviour, by 52 films about great people together, or even by visiting a courtroom—is the 53 way to pass the message.
By identifying the specific 54 you would like to see in your children, you’re more likely to 55 those characters. So make a point of it.
36. A. which B. that C. who D. /
37. A. handed B. given C. belonged D. passed
38. A. therefore B. however C. thus D. besides
39. A. chosen B. divided C. selected D. judged
40. A. personal B. outstanding C. collective D. genetic
41. A. While B. When C. Until D. Unless
42. A. for B. to C. on to D. up to
43. A. work B. success C. grow D. maturity
44. A. depression B. encouragement C. creativity D. desertion
45. A. quickly B. eventually C. seriously D. obviously
46. A. face B. achieve C. make D. handle
47. A. First of all B. After all C. In all D. All in all
48. A. Work out B. Go over C. Write down D. Get through
49. A. how B. what C. where D. why
50. A. root B. base C. all D. part
51. A. witness B. stare C. gaze D. scan
52. A. reading B. scanning C. watching D. examining
53. A. easiest B. strongest C. cruelest D. simplest
54. A. problems B. manners C. wonders D. characters
55. A. strengthen B. forget C. remind D. tear
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