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Weeds compete for soil nutrients,water,space,and sunlight with the crops farmers grow to help feed people.Now a third—generation weeding robot,armed with lasers and powered by Al,offers a perfect labor—saving device.
   Trundling(移動)down a row of crops,a battery of twelve cameras scan the ground,identifying weeds through machine—leaning and killing them with a CO2 laser.CO2 lasers use reactions between nitrogen,carbon,and oxygen to generate powerful beams of light that are concentrated through mirrors inside the laser.
   The Autonomous Weeder by Carbon Robotics can root out 100,000 weeds per hour,and clear 15—20 acres in a single day—numbers that require a person working an entire season to match.The robot's onboard supercomputer ensures millimeter precision with its laser so as to avoid accidently clipping(剪掉)crops.
   "This is one of the most creative and valuable technologies that I've seen as a farmer," said James Johnson of Carzalia Farm in a statement,who has used Carbon Robotics' technology on his farm. "I expect the robots to go mainstream because of how effectively they address some of farming's most critical issues,including the overuse of chemicals,process efficiency,and labor. The sky is the limit." It's no surprise that the 2021 model of the Autonomous Weeder has already sold out,even considering its price tag which was quoted at "hundreds of thousands of dollars."
   The de-weeding method of the robot is Certified Organic and in line with regenerative farming practices.Cost—effective weed control is the biggest barrier to entry with organic farming,and agriculturalists looking to make the switch finally have an alternative to help them get their vegetables out to people.

(1)Which part of the weeder helps clear grass precisely?
D
D

A.The CO2 laser.
B.The battery of cameras.
C.Mirrors inside the laser.
D.The onboard supercomputer.
(2)What does the underlined sentence "The sky is the limit." mean in paragraph 4?
B
B

A.The robots won't spread widely.
B.The invention is very promising.
C.The weeder addresses limited issues.
D.The technology needs further improvement.
(3)What does James think of the weeder?
D
D

A.Flexible.
B.Affordable.
C.Energy—saving.
D.Environment—friendly.
(4)What can be inferred about the weeder from the last paragraph?
B
B

A.It contributes to a higher output.
B.It helps develop organic farming.
C.It will replace humans in farming.
D.It isn't accepted by agriculturalists.

【考點】說明文;科技
【答案】D;B;D;B
【解答】
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發(fā)布:2024/5/27 14:0:0組卷:0引用:2難度:0.5
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    發(fā)布:2024/12/20 8:0:13組卷:17引用:2難度:0.5
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    發(fā)布:2024/12/20 5:0:3組卷:7引用:1難度:0.6
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    發(fā)布:2024/12/18 14:30:1組卷:5引用:2難度:0.5
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