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题型:阅读理解-阅读单选 难度:0.65 引用次数:121 题号:11374999

While the human world is suffering from the novel coronavirus outbreak, our planet is actually showing certain signs of "recovery" from the damage caused by human activity. According to BBC, new satellite images released by the European Space Agency showed that the levels of air pollutants and greenhouse gases have "fallen sharply" in major cities in Europe and the United Stated ever since the lockdown started.

This is a great example of how the world can change overnight as soon as people change their behavior—especially after recent discoveries in Antarctica. An international team of 89 scientists found that the ice in Greenland and Antarctica was melting six times faster in the 2010s than it was in the 1990s. And in February Argentina's Marambio research station in Antarctica recorded a record high temperature of 20.75℃ in the continent.

So what exactly will happen if the temperature keeps rising and the ice keeps melting? A third study might give you an idea. A team of scientists drilled a hole into the seafloor in west Antarctica and obtained material from underground, in which they found traces of roots, spores and pollen— typical products of a rainforest — that dated back to 90 million years ago. In other words, Antarctica was very likely a rainforest back when the dinosaurs walked on Earth. But given the fact that the South Pole has four months of darkness during winter — even millions of years ago—scientists believe that the rainforest could only exit if the greenhouse gas concentration were extremely high back then to keep the continent warm when there was little or no sunlight. "We didn't know that this Cretaceous greenhouse climate was that extreme," Johann Klages of the Alfred Wegener Institute in Germany and a co﹣author of the research told the Guardian. "It shows us what carbon dioxide is able to do. "

Ice or no ice, Antarctica will be—and has always been fine with extreme changes. The human world, however, may not be. Now, during the coronavirus lockdown, we've seen the changes resulting from less human activity. Hopefully, we'll hold on to those changes—not for Antarctica or the planet, but for ourselves.

1. What does the author mainly want to tell us in Paragraph 1?
A.The novel coronavirus has spread all over the world.
B.The environment of our planet has improved greatly.
C.Europe and US should be responsible for the air pollution.
D.Reducing human activity does good to the environment.
2. What can prove that Antarctica was likely a rainforest 90 million years ago?
A.The traces of typical products of a rainforest.
B.The existence of high greenhouse gas concentrations.
C.The recording of extreme Cretaceous greenhouse climate.
D.The evidence of dinosaurs living in rainforests.
3. Which of the following would the author probably agree with?
A.Human activities don't cause much threat to Antarctica.
B.Little can be done to stop extreme change in Antarctica.
C.The lockdown can be used to slow down global warming.
D.We should reduce carbon dioxide emissions for our own sake.
4. What is the best title for the article?
A.Antarctica Is Melting at a Fast Speed
B.It Is Our duty to protect the Planet
C.Less Human Activity Makes Nature Recover
D.Lockdown Reduces Air Pollution and Greenhouse Gas

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阅读理解-七选五(约240词) | 适中 (0.65)
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【推荐1】It’s in Your Hands

Feeding bread to the ducks is a fond pastime for many of us, reminding us of happy childhood trips to the local park.     1     Eating it can cause our feathered friends to develop a condition called Angel Wing, which is when too much bread makes birds’ feathers grow too quickly. This additional weight puts a strain on their muscles, causing their wings to twist and drop open.

“Angel Wing can be cured if we reach birds before it has developed too severely,” says Caroline Simpson, a trustee of UK charity Swan Lifeline, “    2    ” Over the last 20 years UK charity Swan Lifeline has rescued and treated more than 30,000 birds. Adult swans can develop heart disease by eating much bread, so it’s important that we do our best to prevent this by feeding them the right kind of food.

    3     Rotten bread at the bottom of rivers and lakes allows bacteria to breed, spreading disease and attracting rats and other pests to our waterways, which can result in the presence of a mould (霉菌) called Aspergillus. It has the potential to kill waterfowl and other wildlife if it gets into their lungs.

    4     Definitely not. Wild Things Swan & Duck Food has launched the “Better than Bread” Campaign to highlight the risk of a calorific diet to water birds. The campaign advises that there are much healthier alternatives to bread, such as specially developed feeds. They can float on the water surface, so birds can enjoy every last bit.     5    

A.So we must stop feeding the ducks.
B.But did you know that bread actually puts birds in danger?
C.Does this mean we have to stop fun trips to feed the ducks?
D.Bread can also cause harmful changes to the natural ecosystem.
E.What a scene it is to watch ducks eating bread floating on the river!
F.Otherwise the consequences can be serious — such as the loss of the wing.
G.Next time take a healthier alternative and do your bit to protect our precious wildlife.
2020-06-28更新 | 138次组卷
阅读理解-阅读单选(约360词) | 适中 (0.65)
文章大意:本文是一篇记叙文,文章讲述的是Gaylord的家着火后,他的狗狗Madison依旧等待主人归来,这让Gaylord十分地感动。

【推荐2】The Camp Fire ravaged(毁坏) an area the size of Chicago, destroying 14,000 residences and taking more than 17 days to contain. As it spread, killing at least 85 people and displacing thousands more in Northern California, Madison waited patiently.

Madison’s owner, Andrea Gaylord, was not able to get to her home in Paradise, California, when the fire began to spread on Nov. 8, meaning Madison was left behind. For weeks, all Gaylord could do was pray for Madison’s safety.

Shayla Sullivan, a rescue volunteer, spotted Madison a few times in a valley, apparently guarding territory, and put out fresh food and water regularly in hopes that the dog would turn up. She even placed an article of clothing that smelled like Andrea near the home to keep Madison’s hope alive until his people could return.

When the evacuation(撤离) order was lifted last week and Andrea went back to the property—which had been   destroyed by the fire—her prayers were answered: Madison was there, seemingly protecting what little remained of his family’s home.

“WELL, I’m so HAPPY to report that Andrea was allowed to return to her property today and THERE MADISON WAS!!!! He had stayed to protect what was left of his home, and NEVER gave up on his people!” Sullivan wrote in the comment on her Facebook post, which was shared 12,000 times as of Saturday evening. “I’m so happy. I’m crying as I write this! He didn’t give up through the storms or the fire! A LOOOOONG month it must have been for him!” she added.

Later, Andrea said in an interview that she was overcome with joy to see Madison waiting for her. Andrea lost everything in the fire and is now homeless, but she has been able to find some solace knowing her dogs are safe, “Imagine the loyalty of hanging in through the worst of circumstances and being here waiting,” Andrea told ABC10, fighting through tears. “You could never ask for better animals.”

1. Why was Madison left behind?
A.He was stopped by the fire.
B.He was unwilling to go with his owner.
C.He was ordered to protect the family home.
D.His owner was not at home when the fire spread.
2. Why was Shayla Sullivan crying when writing the post?
A.She was worried whether Madison could survive.
B.She was overcome with joy to see Madison waiting for her.
C.She was happy Madison finally turned up for the food she left.
D.She was moved by what Madison did and his reunion with Andrea.
3. What did Andrea mean by saying “You could never ask for better animals.”?
A.Madison is the best dog.
B.One could not ask animals for help.
C.Animals are never better than humans.
D.Dogs are clever than any other animals.
4. What is the text mainly about?
A.A brave dog fought alone against the storms of fire.
B.A helpful rescue volunteer helped to find a lost dog.
C.A devoted dog reunited with his owner after the fire.
D.A frightened survivor had a narrow escape from the fire.
2023-06-25更新 | 118次组卷
阅读理解-阅读单选(约330词) | 适中 (0.65)
文章大意:本文是篇说明文。文章主要介绍了一种基于摄像头和人工智能的技术,可以识别老鹰和其他鸟类,以减少风力发电的涡轮机对它们造成的威胁。

【推荐3】Wind power is a powerful tool for reducing carbon emissions that cause climate change. The turbines (涡轮机), however, can be a threat to birds, which is why experts are looking for ways to prevent the danger.

A company in Boulder, Colorado has produced a camera-and-AI-based technology that can recognize eagles and other birds as they approach in enough time to shut off turbines in their flight paths. Their tool, called IdentiFlight, can detect 5.62 times more bird flights than human observers alone, with an accuracy rate of 94 percent. Using high-precision (高精确度的) visual sensors, the system calculates a bird’s speed and flight path, and if it is on a crash path with a turbine, a signal is sent to shut that turbine down.

Winning an award for its performance in Australia, the tracking system was set up in 2018 and was found to cut eagle deaths at the Cattle Hill Wind Farm by more than four-fifths. Each day signals have shut down their movements an average of 400 times—across the field of 48 turbines— for 2 to 3 minutes each time.

Across the globe, Duke Energy in Wyoming is employing the same technology with impressive results at its Top of the World Wind power Project, which was the first wind site to use the technology. In 2014, IdentiFlight’s maker, Boulder Imaging, used Top of the World for testing after eagles were killed by the turbines, which left Duke Energy in violation (违反) of the Migratory Bird Treaty Act. 47 units made of eight wide-angle cameras now constantly pass cross the sky to monitor all 110 turbines.

Bird lover Garry George admits, “Our own science shows that climate change is by far the biggest threat to birds and the places wildlife need to survive. IdentiFlight will make it possible to fight the worst effects of climate change and protect the birds we love in the process.”

1. What can IdentiFlight do?
A.Stop the turbines when birds are spotted.
B.Prevent birds from choosing a crash path.
C.Identify potential threats to wind turbines.
D.Let the turbines make full use of wind power.
2. What does the data in paragraph 3 show about IdentiFlight?
A.It is widely used.B.It received a warm welcome.
C.It is very effective.D.It has a really long service life.
3. Why did Duke Energy work with Boulder Imaging in 2014?
A.It broke the relevant law on bird protection.
B.It responded to the call of Boulder Imaging.
C.It intended to improve its wide-angle cameras.
D.It followed in the Cattle Hill Wind Farm’s footsteps.
4. What is Garry George’s attitude to IdentiFlight?
A.Reserved.B.Approving.
C.Uncertain.D.Unconcerned.
2023-05-05更新 | 55次组卷
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