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The bar-tailed godwit (斑尾鷸)has just broken its own record for the world’s longest non-stop

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解决时间 2021-01-03 13:07
  • 提问者网友:难遇难求
  • 2021-01-02 21:31
The bar-tailed godwit (斑尾鷸)has just broken its own record for the world’s longest non-stop flight, including humans in planes, according to a report made by Lund University Press. The bird can fly non-stop for eight days, while the most impressive man-made airplane can only remain in the sky for 82 hours without a stop.
The bar-tailed godwit’s journey, from Alaska to New Zealand, covers over 6,835 miles. It completes this trip twice a year, in autumn going to New Zealand, and in spring back to Alaska. The tireless bird ends the trip without stopping once for food or rest. All other birds can only finish trips that are twice as short as what the bar-tailed godwit travels.
One reason for the bar-tailed godwit’s success is that it has made the best use of its fuel, which is only 0.41 percent of its body weight over each hour of any given long flight. Hedenstrom, a professor from Lund University, says, “This figure is extremely low compared with other birds.” The bird also has a special body shape that helps it fly easily. It stores body fat and protein to manage its trips. It also travels fast, compared to other birds and animals.
Many questions remain about this bird record holder that never gets lost in the air. Researchers wonder whether it has an inside compass (指南针) that helps it to know the direction. Please watch how beautiful bar-tailed godwits look as they come in for a landing, along with other birds.
【小题1】For the flight from Alaska to New Zealand, the bar-tailed godwit A.doesn’t need to stop to eatB.is afraid of hot weatherC.seems very tired at lastD.should fly less than 7,000 meters【小题2】The main reason why the bar-tailed godwit can break the record is that it .A.eats little food every hourB.has a special body shapeC.stores much water in its bodyD.has very light body weight【小题3】The last paragraph tells us that .A.researchers have understood the bird very wellB.the bird has a very good sense of directionC.there are still many who doubt the bird’s abilityD.the bird has an inner compassA
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  • 五星知识达人网友:由着我着迷
  • 2021-01-02 21:51
(答案→)A 解析:可联系答.案.网客服索取。
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  • 1楼网友:荒野風
  • 2021-01-02 22:26
正好我需要
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