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Researchers have discovered a unique group of polar bears who’ve survived in the absence of sea ice: by hunting from the ice that breaks off glaciers (冰川). The bears live in southeast Greenland and are a genetically(基因地) distinct subpopulation, which suggests they’ve been separated from other polar bears for around 200 years, according to a paper published this week in Science.

“The findings show us how some polar bears might survive under climate change. but I don’t think glacier habitat is going to support huge numbers of polar bears,” said Kristin Laidre, a polar research scientist at the University of Washington. “There’s just not enough of it. We still expect to see large declines in polar bears across the Arctic under climate change.”

When temporary ice sheets form on the ocean during each fall’s freeze, the bears walk across it in search of food, often by sitting next to gaps in the ice and waiting for seals to come up for air. When the ice melts (融化) in spring, polar bears typically survive between 100 and 180 days without food until the ice forms again. As temperatures rise, however, that period is becoming longer, which is harming the bears and pushing them toward starvation. The bears living in southeast Greenland go even longer without sea ice—around 250 days. But they’ve been able to continue bunting during that period by using large pieces of ice that break off from glaciers into the water.

There are roughly 26, 000 polar bears remaining across the globe. Though the southeast Greenland bears have adapted to surviving in their surroundings, rising temperatures may ultimately cause their glacial ice to shrink, too. As Steve Armstrup, a scientist with Polar Bears International says, the study “is not some kind of effective rescue for polar bears”. While the southeast Greenland bears are able to hunt through glacial ice today, he says, “In the future, that will change unless we arrest the rise of global greenhouse gases.”

【小题1】What do we know about the newly- found polar bears?
A.They exist in large numbers.B.They have genetically changed.
C.They do better in hunting seals.D.They survive longer without food.
【小题2】What is Steve Armstrup’s advice?
A.Keeping global warming under control.
B.Moving many polar bears south.
C.Preventing glacial ice breaking.
D.Finding new habitats for polar bears.
【小题3】What is the best title of the text?
A.Polar Bears Find New Opportunities
B.Polar Bears Suffer From Lack of Ice
C.Polar Bears Survive in Iceless Regions
D.Polar Bears Decline With Climate Change
【小题4】In which section of a website can you read this text?
A.Lifestyle.B.Health.C.Travel.D.Environment.
2022·辽宁·模拟预测
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Dog walkers should show consideration, not just for the dog in their home or car, but also for their environment. Doing so will help keep the local area clean and pleasant, especially for people out walking their dog or taking children to the park.

A considerate dog walker will take steps to prevent their pets from producing waste wherever they want to. Dog waste is particularly unpleasant and should be avoided at all costs. Not only is it nasty to walk in a dirty area, but it is also a serious health risk. Dog fouling ( 污垢) is a criminal offence in the UK and carries a maximum fined £1,000 if the case goes to court (法庭). Dog walkers should always be prepared to pick up after their dog by carrying dog waste bags or even plastic carrier bags that can be used. Do not run the risk of allowing your dog to make a public area dirty by always having a steady supply of bags with you during dog walks. Carrying a single bag during a walk is not always enough, as some dogs will need to go twice or perhaps even three times during walks.

Some dog owners are not willing to admit that their pets is a challenge or troublesome. Rather than dislike the suggestions that dogs should be kept under control, you should see it as your duty to protect other dogs, children and anyone else from harm. Do know troublesome behaviors such as aggression (攻击) towards other dogs or children and make every effort to keep your dog under control. Avoid areas where you know other dogs or children will be. They can do this by showing respect for other people’s property, picking up after their dog and by keeping challenging dogs under control.

【小题1】The writer advises dog walkers to show consideration mainly for having_____.
A.a clean carB.a comfortable home
C.a good environmentD.a very pleasant park
【小题2】What does the underlined word “nasty” in paragraph 2 probably mean?
A.Highly unpleasant or annoying.B.Very boring and tiring.
C.Specially disappointingD.Surprising or astonishing.
【小题3】If dog waste is found in public in England the dog’s owner will be______.
A.fined more than £1,000B.ordered to pick it up at once
C.ordered to give one one waste bagD.considered to break the law.
【小题4】What does the writer mainly want to tell the owners in the last paragraph?
A.To keep their dogs under control.B.To try to make their dogs keep clean.
C.To stop their dogs from being harmed.D.To respect other people’s property.

Back in November 2019, Alessandra Mascaro, a volunteer working at the Ozouga Chimpanzee Project in Loango National Park, Gabon. West Africa, saw something she couldn’t quite believe — one of the chimpanzees named Suzee noticed her son Sia had hurt his foot. After seemingly thinking about the best course of action, she then quickly took an insect out of the air, licked it and applied it to the wound.

Mascaro documented the whole touching moment on film and showed her supervisor. Prof Simone Pika, a cognitive biologist based at Osnabrück University. The Ozouga team then set about monitoring the chimpanzees in the park to look for other examples of the behaviour. Over the following 15 months they found 76 incidences of the chimpanzees applying insects to wounds on themselves or other group members.

While animals such as bears, elephants and bees have previously been observed applying ‘medicines’ to themselves, this study marks the first time that animal have been seen treating the wounds of others. The act of applying an insect to treat another’s wounds is a clear example of prosocial behavior, which means that rather than acting purely for one’s own survival the chimpanzees are acting in the interests of others. This echoes the acts of sympathy displayed by human beings.

“This is, for me, especially breathtaking because so many people doubt prosocial abilities in other animal. Suddenly we have a species where we really see individuals caring for others,” Pika said.

The team now aims to identify the insects being used by the chimpanzees and investigate who is applying insects to whom to establish whether the behaviour is based on a social class. “Studying chimpanzees in their natural environments is crucial to shed light on our own cognitive evolution,” said Pika. “We need to still put much more effort into studying and protecting them and also protecting their natural habitats.”

【小题1】Why did the chimpanzee grab an insect out of the air?
A.She wanted to feed it to her son.B.She wanted to keep it as her treat.
C.She used it as a kind of medicine.D.She would like to surprise Mascaro.
【小题2】Why did the Ozouga team start monitoring the chimpanzees in the park?
A.To take good care of them.B.To collect further evidence.
C.To stop them from being hurt.D.To prevent them from fighting.
【小题3】What does the behaviour of chimpanzees’ treating others suggest?
A.They often suffer injuries.B.They are capable of tool use.
C.They might have sympathy.D.They are affected by humans.
【小题4】What is the main idea of the passage?
A.Chimpanzees use insects to treat wounds.B.Chimpanzees behave like human beings.
C.Chimpanzee mother can identify insects.D.Chimpanzee mother takes care of her son.

The kakapo is the world’s heaviest and only flightless parrot. Now, some scientists are using advanced technology to rescue the endangered kakapos. If successful, the techniques used may help save other bird species as well.

The few remaining kakapos live on three small islands, where their progress can be monitored through a smart device. Once found in large numbers across New Zealand, the cute bird, which can weigh up to 11 pounds (5 kilograms), is now heading to extinction. While cruel predators (捕食者) such as foxes, cats, and snakes are largely to blame, the kakapo’s strange habits of laying eggs don’t help either. For starters, the parrots, which can live up to 100 years, do not start laying eggs until the age of five.

Scientists have set up individual feeding stations for all the birds to keep track of how much they eat. Given the difficulties to increasing the population, it is not surprising that only 114 adult parrots remain. Though the number is low, it is a great improvement over the 51 kakapos that remained on Earth in 1995. The increase of its population results from the government’s decision to remove the 51 birds to three small predator-free islands off the coast of New Zealand, and the efforts of a team led by Andrew Digby, a kakapo scientist for the New Zealand Department of Conservation.

A four-day-old kakapo chick will receive a health check. Young chicks in nests are examined and weighed every night, to ensure they are healthy.

Once the birds lay eggs, the eggs are carefully moved from the nests and taken to a hatching (孵化) room to hatch. “We tend to be more successful at raising kakapo eggs than the kakapo,” says Digby. “We break less of them. ” Once the eggs hatch, each mother is given only one chick, while the rest of the newborns are hand-fed (人工喂养). This helps ensure they all receive enough food.

【小题1】What makes the kakapo unique in the parrot family?
A.Its food.B.Its way of hatching.
C.Its feather.D.Its flightless heavy body.
【小题2】What do we learn about the kakapo from paragraph 2?
A.The way it feeds the young.B.The environment it needs to live in.
C.The nature of its natural enemies.D.The cause of its being endangered.
【小题3】What effort did the government make to protect the kakapos in 1995?
A.Giving the kakapos a new home without natural enemies.
B.Setting up individual feeding stations for the kakapos.
C.Building a fence to keep the predators away.
D.Driving all the predators nearby away.
【小题4】Why is each mother kakapo given only one baby chick?
A.To help the mother kakapo keep laying eggs.
B.To make every chick get enough food to survive.
C.To protect the mother kakapo from the predators.
D.To protect the chick from being killed by accident.

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