Mr.Pagano is watching a video of a polar bear swimming after a seal.The seal escapes!The bear meets another bear.They sniff at each other and then go separate ways.What makes this video so unusual is that it's from the point of view of the polar bear.A camera was previously(先前)put around the bear's neck by Mr.Pagano's research team with the aim to find out what polar bears will need to survive in their changing habitat.
According to the scientists,polar bears are endangered because of Earth's warming climate,which is shrinking the ice pack that floats on the Arctic Ocean.The ice pack goes through a yearly cycle.In the fall and winter,the ice pack grows southward,extending toward North America,Asia,and Europe.By the ending of winter,the ice pack lies over shallower waters near land,where seals live.The polar bears hunt along the edge of that ice,eating seals in the spring and early summer before the ice over shallow waters melts.It's how the bears fatten up for the next winter.
In the past few decades,the ice pack has started to grow later in the fall.As a result,it isn't as thick and starts to melt and break up earlier in the spring.That gives the bears less sea ice for hunting and forces some of them to swim farther to move between land and ice habitats.Studies show that,in places where the ice has been breaking up earlier for decades,the number of bears is going down,and their overall health is getting worse.Scientists want to know if bears are still finding enough to eat and how far they have to travel,or swim,to find food.
Using the GPS collars,the researchers confirmed(證實)that some bears are swimming long distances.Of 52 bears,20 took a total of 50 long ---distance swims,each one a journey of more than 30 miles.Are the long ---distance travels harming their chances for survival?If polar bears are going to survive in the warming Arctic,humans may need to act right now.With the work of scientists like Mr.Pagano,a ray of hope will finally cut open the darkness.
(1)What might be the profession of Mr.Pagano? BB
A.A climate scientist.
B.A zoologist.
C.A GPS engineer.
D.An ice observe.
(2)Why is the video professional according to the passage? CC
A.It is made by professional animal researchers.
B.Its aim to trace been behaviors in North Pole.
C.It is filmed by a camera attached to a polar bear.
D.It uses hi---tech GPS to study polar bears' habitats.
(3)Which is the factor endangering polar bears' lives? DD
A.The shrinking shallow waters.
B.The decreasing number of seals.
C.The long---distance travels for habitats.
D.The changed yearly cycle of ice packs.
(4)What might be the author's attitude toward Mr.Pagano's researcher? AA
A.Positive.
B.Doubtful.
C.Disapproval.
D.Critical.
【考點】說明文;環(huán)境保護(hù).
【答案】B;C;D;A
【解答】
【點評】
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發(fā)布:2024/5/27 14:0:0組卷:10引用:2難度:0.5
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But despite this,our children are growing up naturedeprived(剝奪).I spent my boyhood climbing trees.These days,children are robbed of the ancient freedom,due to problems like crime,traffic,the loss of the open space and strange new ideas about what is best for children,that is to say,things that can be bought,rather than things that can be found.
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ADHD is one of the great problems of modern childhood.One study after another indicates that contact with nature gives huge benefits to ADHD children.However,we spend money on drugs rather than on green places.
The life of old people is measurably better when they have access to nature.The increasing concern for the growing population of old people is in quality rather than quantity of years.And study after study finds that a garden is the single most important thing in finding that quality.Even problems with crime and aggressive behaviour are reduced when there is contact with the natural world.
We need the wild world.It is essential to our wellbeing,our health and our happiness.
(1)According to the author,people enjoy
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B.running in the gym
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(2)From the second paragraph,we can see that
A.Children don't want to approach nature
B.children probably spend less time in nature nowadays
C.climbing trees will certainly do good to the children
D.children tend to be happier as a result of their material satisfaction
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A.Children with ADHD can be cured.
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C.Problems with crime and violent behavior will easily be solved.
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(4)what is the main idea of this passage?
A.Access to nature improves our life.
B.Nature treats children for ADHD.
C.Getting close to nature reduces crime.
D.Man can't live without natural areas.發(fā)布:2025/1/6 16:30:6組卷:0引用:1難度:0.5 -
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A.The loss of any species can affect humans.
B.Endangered species are paid more attention to by humans.
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A.Ecosystem protection.
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D.To inform diverse views on the changes of Roald DahI's books.發(fā)布:2025/1/30 8:0:1組卷:1引用:1難度:0.4
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