1 . In his new book The Journeys of Trees, science writer Zach St. George explores an extremely slow migration(迁 徙), as forests move inch by inch to more hospitable places. As old trees die and new ones grow up, the forest is—ever so slightly—moving, he writes. “Through the fossils(化石) that ancient forests left behind, scientists can track their movement. They move back and forth across continents, like migrating birds or whales.”
This has happened over thousands of years, and climate change tends to be the driving force—pushing and pulling forests around the globe. Of course, today, climate change is speeding up, and trees can’t keep pace. Take Califomnia: It’s getting hotter and drier and scientists estimate that before too long, Joshua Tree National Park may not be able to sustain Joshua trees. Zach St. George describes a similar threat to Sequoia National Park, during California’s long and severe drought a few years back.
Scientists worried that maybe Sequoia National Park would no longer be the place for giant sequoias. St. George thinks at some point we will lose these ancient trees and we will have to think about what we do with the places, and do we plant new ones somewhere else? This is known as “assisted migration”—humans planting trees in other places where they’re more likely to grow well. But this process carries risks—people can accidentally introduce insects and diseases to new places, where they may wipe out entire native populations. So, St. George writes, there’s a debate among conservationists and foresters today: Should humans help the trees escape?
“I think there are going to be instances where people are probably going to step in and help species move to places where they’ll be more suitable in the future,” St. George says. “And I met a lot of people in the process who have felt sorry about what has been lost and what will be lost—and are still continuing to try and do good and work in the moment for small things.”
1. What does the underlined word “They” in Paragraph 1 refer to?| A．Animals. | B．Fossils. | C．Scientists. | D．Forests. |
| A．To confirm the problem of the loss of tree species is serious. |
| B．To argue humans should be responsible for the loss of trees. |
| C．To explain climate change results in the migration of forests. |
| D．To prove forests can slow down the process of climate change. |
| A．It can prevent the trees escaping. |
| B．It can promote biological diversity. |
| C．It may help to protect the forests. |
| D．It may affect species in new places. |
| A．Supportive. | B．Doubtful. | C．Ambiguous. | D．Intolerant. |
A Tsinghua professor is leading authority on tackling global warming and public attention has been drawn
Global warming, carbon footprints, the 2-degree limitation for temperature
In addition to his academic research and teaching work, the climate change economics professor from the Department of Earth System Science at Tsinghua University,has made a speech to
“I’m a strong believer in environmental protection
His speech last year on I Am A Scientist, a multiplatform series of online articles and videos organized by the China Association for Science and Technology,
“Since the industrial revolution, the burning of fossil fuels
In 2000, he chose
3 . It’s unlikely that we’ll see a dodo, a flightless bird, walking this earth anytime again, according to Beth Shapiro, a evolutionary molecular biologist.
“When most people think about de-extinction, they’re imagining cloning,” Shapiro said. Cloning, the approach that created Dolly, the sheep in 1996 and Elizabeth Ann, the black-footed ferret in 2020, creates an identical genetic copy of an individual by putting DNA from a living adult cell into an egg cell from which the nucleus (细胞核) has been removed. Adult cells contain all the DNA needed to develop into a living animal. Egg cells then use that DNA as a blueprint to turn themselves into many kinds of cells——skin, organs, blood and bones——the animal needs.
“But no living cells from dodos exist. Instead,” Shapiro said, “you’d have to start with a closely related animal’s genome (基因组) and then change it into one similar to dodos.” For example， mammoths (猛犸) are also extinct，but they were very closely related to modern Asian elephants, so researchers are attempting to bring mammoths back from extinction by creating a hybrid mammoth with some mammoth genes replacing part of the elephant genome in an elephant egg cell. However, there are likely millions of genetic differences between the genome of an Asian elephant and that of a mammoth according to Shapiro.
As for the dodo, its closest living relative is the Nicobar pigeon. Mammoths and Asian elephants are pretty closely related, whereas it had been more than 20 million years since the dodo and the Nicobar pigeon had any common ancestors. Genetic differences between the two bird species are therefore much greater, making it a formidable task to create a successful hybrid in the lab, Shapiro said.
Even if scientists manage to bring dodos back, the island where they once lived is a very different place nowadays, which make it impossible to reintroduce dodos without major intervention.
1. What is Paragraph 2 mainly about?| A．The special role of DNA. |
| B．The process of cloning. |
| C．The development of cloning. |
| D．The complexity of cloning. |
| A．Dodos are harder to bring back to life. |
| B．Their living cells are hard to preserve. |
| C．Cloning can be used to recreate extinct animals. |
| D．They share a similar genome with Asian elephants. |
| A．Urgent. |
| B．Possible. |
| C．Tough. |
| D．Different. |
| A．Favorable. |
| B．Intolerant. |
| C．Objective. |
| D．Negative. |
4 . The sperm whale is an astonishing creature. It’s longer than a semi-truck, weighs more than 90, 000 pounds and is the largest member of the toothed whale family. It’s known to dive 6, 500 feet in search of food, and to stay down there for longer than an hour at a time.
Perhaps most fantastically, the sperm whale’s brain weighs as much as 20 pounds-the biggest of any species on Earth. But when it comes to brains, is size all that matters? There’s a lot we don’t know about the sperm whale’s intelligence because it’s difficult to carry out neurological (神经的) testing on such a huge marine mammal. But some clues point to sperm whales being much smarter than we give them credit for.
A 2021 study published in Biology Letters, for example, looked back to 19th-century historical logbooks from whalers. Researchers found that sperm whales were at first easy to catch-but almost immediately, the whales learned how to evade hunters and whaling success dropped by 60 percent. The study suggests that the whales passed information to one another through soundwaves to avoid being caught.
Animals that have big brains usually have a few things in common. They usually live long lives; for example, sperm whales can live for 70 years or longer. Additionally, they’re capable of complex behaviors and they tend to be more socia1. Whales may work together to hunt or communicate in a language all their own.
What’s more, humans, whales and dolphins all have spindle neurons in their brains. These nerve cells make us capable of deeper thought, such as reasoning skills, memory, communication and adaptive thinking. And like humans, whales have emotional intelligence- meaning they＇re capable of empathy, grief and sadness. Still, in proportion to (与…成比例)our body size, the human brain is bigger than that of the sperm whale.
Yet there’s still so much we don’t know about how smart sperm whales really are. And just like the whalers of a century ago, we have likely been underestimating marine mammals, whether large or small, for as long as we’ve known of their existence.
1. Why do people know little about the sperm whale’s intelligence?| A．Sperm whales’ big size makes research difficult. |
| B．It didn’t attract scientists’ attention until recently. |
| C．Whalers didn’t keep enough records of their hunting. |
| D．Sperm whales usually stay deep down in the ocean. |
| A．Track. | B．Avoid. | C．Locate. | D．Trick. |
| A．The nerve cells distinguish humans from animals. |
| B．Sperm whales have smaller brains than humans. |
| C．Spindle neurons make higher intelligence possible. |
| D．Emotional intelligence is unique to whales and humans. |
| A．Sperm Whales Are Astonishingly Smart |
| B．Sperm Whales Have the Biggest Brain |
| C．Break the Code of Whale Language |
| D．Unlock the Mystery of Sea Mammals |
5 . “I like pigs,” Winston Churchill supposedly once said. “Dogs look up at us, cats look down on us, but pigs treat us as equals.” Whether Churchill’s contemporary George Orwell also liked pigs is less clear. But he, too, surely saw something in them that was lacking in other domestic beasts, for it was they who ended up running the show in novel Animal Farm. Pigs, then, are intelligent social creatures.
And, like all animals, they sometimes fight. A study just published in Animal Cognition by Ivan Norscia, a biological anthropologist at the University of Turin, in Italy, and his colleagues, looked at how a group of 104 domestic pigs went about resolving such incidents. In total, Dr. Norscia and his team studied the details of 216 pig conflicts over the course of six months.
Some pigs tend to be attackers; others tend to be victims. Who is what depends largely on weight, for, among pigs pounds mean power. The attacker might bite, kick, bump or lift the victim (or string together a sequence of those actions). Most conflicts ended in seconds, but some lasted a minute or two.
In most animal species that would be that. However, many of the pig conflicts Dr. Norscia observed had interested parties beyond the protagonists (主角). He therefore wanted to understand the role of these bystanders in resolving fights —and what this says about pigs’ cognitive (认知) abilities.
Since there was usually not enough time for a bystander pig to intervene during the heat of a conflict (though this did occur), he and his colleagues looked at what happened in the three minutes directly following an aggressive interaction. Sometimes, they found, the protagonists made up on their own —for instance, by touching noses.
On other occasions, though, a third pig stepped in. Sometimes this bystander acted as a peacemaker, engaging with the attacker and reducing the number of subsequent attacks compared with what might otherwise have been expected. Sometimes, by contrast, the bystander engaged with the victim. This appeared to calm the victim down, for it reduced anxiety-related behavior such as shaking and scratching.
1. Why does the author mention Winston Churchill in the first paragraph?| A．To prove pigs are clever. | B．To show pigs are inspirational. |
| C．To state Churchill loves pigs. | D．To introduce the topic of the text. |
| A．Their ages. | B．Their weight. |
| C．Their safety needs. | D．Their cognitive abilities. |
| A．To comprehend the role of bystanders in conflict resolution. |
| B．To figure out the relationship between pigs. |
| C．To record the details of 216 pig conflicts. |
| D．To find out the reason for pigs’ conflicts. |
| A．By shaking it. | B．By touching its nose. |
| C．By scratching its back. | D．By offering comfort to it. |
When Mary entered the south Pole Penguin Research Lab, she saw her friend Tom gently stroking (轻抚) a penguin in his arms. As children of the lab scientists, Mary and Tom often observed the emperor penguins that were studied to understand how they adapted to extreme temperatures —insights that could aid human survival.
“We’re thirteen, Tom. It’s time to grow up and stop playing with the lab penguins,” said Mary as she started cleaning. “They’re research animals, not pets.”
“But the birds listen to me1” insisted Tom, his breath forming a cloud in the freezing air. “You’re just trying to be a penguin whisperer again,” Mary replied, shaking her head with a gentle smile. The penguins seemed playful as they walked, dove, swam and chased their live fish for sport before eating.
Suddenly , an alarm rang out and red lights flashed , signaling a problem. The kids rushed over to look into it. “It’s colder than before —there’s ice forming on the water,” noted Tom. Though always cold, Mary had never seen ice here before. She checked the habitat monitor and found that the temperature had gone down a lot. “The heater must be broken!”
Mary quickly sent a message to their parents’ research team, who were conducting outdoor studies. With the adults away, the kids would have to deal with the freezing conditions until help arrived.
Time dragged as Mary and Tom anxiously waited. The increasing cold caused them to shake. “I wonder what emperor penguins do in extreme cold, since they stay in the Pole all winter instead of going somewhere warmer,” asked Mary. “They huddle (挤作一团), ” Tom answered. “They huddle together tightly so that the birds in the middle will be warm enough.” “What about the ones on the edge?” Mary asked. “They push their way towards the center, and then move back out to the edge, and struggle back again. Scientists in the early 21st century recorded it.” He replied as he stared at the large crowd of the penguins in the lab.
注意：1.续写词数应为150 左右；
2.请按如下格式在答题卡的相应位置作答。
”I have an idea to stay warm1" Tom shouted excitedly.
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Two and a half hours later , the parents returned with help.
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Perhaps the finest nature writer of the Twentieth Century, Rachel Carson (1907-1964)
Carson wrote about how islands were formed, how
8 . African penguins live on the rocky coasts of South Africa, Namibia and nearby islands. Like other types of penguins, the birds have white feathers covering their chests and black feathers covering their backs. They form lifelong pair bonds with mates, but they nest in huge colonies — so, scientists wondered how the birds were able to identify their partners among the sea of black-and-white birds. They wondered if their chest spots had something to do with it. To test this theory, they studied 12 African penguins at a zoo and marine park near Rome called Zoomarine Italia.
In one test, they hung two life-size photographs of the African penguins. One showed a random member of the colony, while the other showed the test subject’s mate. The scientists recorded the birds’ interactions with the photos: How long did they spend looking at each one, as well as how much time did they spend standing near each photograph? The penguins spent more time gazing at the photo of their partners — about 23 seconds longer, on average — than looking at the other photo. They also stood next to the image of their beau s for twice as long. Then, the researchers covered up the heads of the birds in the photographs, leaving only their speckled bodies visible, and the penguins still lingered near their partners’ portraits.
In another experiment, the researchers hung up two photos of a bird’s mate — but, in one, they had digitally removed its spots. In this case, the penguin again spent more time looking at the photo with the dots.
Finally, the researchers posted two photographs of penguins with digitally removed spots — one of the test subject’s mate and the other of a random penguin from the colony. In this scenario, the penguins did not appear to recognize their partners. They spent roughly the same amount of time gazing at or standing near both photos.
Together, the results of these experiments suggest African penguins are zeroing in on their partners’ spots and using them like name tags, scientists say.
“Our results provide the first evidence of a specific visual cue responsible for spontaneous individual recognition by a bird and highlight the importance of considering all sensory modalities in the study of animal communication,” the researchers write in the paper.
1. What can we learn from Paragraph 1?| A．African penguins live on the rocky coasts of North Africa. |
| B．Scientists are curious about the African penguins. |
| C．African penguins have white feathers covering their backs. |
| D．Scientists studied 12 African penguins only at a zoo near Rome. |
| A．Their partners’ voice. | B．Their partners’ heads. |
| C．Their partners’ back feathers. | D．Their partners’ speckled bodies. |
| A．Losing sight of. | B．Taking delight in. |
| C．Paying attention to. | D．Speaking highly of. |
| A．In a science report. | B．In a travel brochure. |
| C．In a biology textbook. | D．In a fashion magazine. |
9 . Tima Abudhi is a 55-year-old mother of five. When growing up, she remembers watching her neighbors
As the mangroves
“Replanting the mangroves is not
Today, the women of Kizingitini no longer have to
Mangrove forests can
| A．cut away | B．settle down | C．set out | D．get up |
| A．moved | B．disappeared | C．died | D．rose |
| A．contribution | B．choice | C．disaster | D．luck |
| A．encouraged | B．motivated | C．forbade | D．persuaded |
| A．neighbor | B．community | C．beach | D．village |
| A．selling | B．assessing | C．closing | D．running |
| A．increased | B．gained | C．produced | D．decreased |
| A．difficult | B．easy | C．worthwhile | D．suitable |
| A．return | B．calm | C．withdraw | D．remove |
| A．hard | B．enough | C．long | D．cheap |
| A．struggle | B．stop | C．prepare | D．determine |
| A．attempt | B．witness | C．afford | D．refuse |
| A．unemployment | B．resignation | C．participation | D．ignorance |
| A．gender | B．wealth | C．income | D．age |
| A．cancel | B．keep | C．accelerate | D．slow |
10 . Several years ago, Jason Box, a scientist from Ohio, flew 31 giant rolls of white plastic to a glacier (冰川) in Greenland. He and his team spread them across 10,000 feet of ice, then left. His idea was that the white blanket would reflect back the rays of the sun, keeping the ice cool below. When he came back to check the results, he found it worked. Exposed ice had melted faster than covered ice. He had not only saved two feet of glacier in a short time. No coal plants were shut down, no jobs were lost, and nobody was taxed or fired. Just the sort of fix we’re looking for.
“Thank you, but no thank you.” says Ralph King, a climate scientist. He told Grey Childs. author and commentator, that people think technology can save the planet, “but there are other things we need to deal with, like consumption. They burned $50,000 just for the helicopter” to bring the plastic to the glacier. This experiment, quote-unquote, gives people false hope that climate change can be fixed without changing human behavior. It can’t. Technology won’t give us a free ride.
Individuals respond to climate change differently. Climatologist Kelly Smith is hardly alone in her prediction that someday soon we won’t be climate victims, we will be climate Choosers. More scientists agree with her that if the human race survives. The engineers will get smarter, the tools will get better, and one day we will control the climate. but that then? “Just the mention of us controlling the climate sent a small shiver down my back, Grey writes.” “Something sounded wrong about stopping ice by our own will,” he says.
Me? I like it better when the earth takes care of itself, I guess one day we will have to run the place, but for the moment, sitting at my desk, looking out at the trees bending wildly and the wind howling, I’m happy not to be in charge.
1. Why does the author mention Jason Box’s experiment in the first paragraph?| A．To introduce a possible solution to climate change. |
| B．To describe a misleading attempt to fix the climate. |
| C．To report on a successful experiment on saving the glacier. |
| D．To arouse people’s attention to the problem of global warming. |
| A．The fight against climate change will not succeed. |
| B．Technology is not the final solution, let alone its high cost. |
| C．It’s best to deal with climate change without changing our behavior. |
| D．Jason’s experiment plays a significant role in fixing climate change. |
| A．Favorable | B．Tolerant | C．Doubtful. | D．Unclear. |
| A．But should we fix the climate? |
| B．Is climate change a real problem? |
| C．How can we take care of the earth? |
| D．What if all the glaciers disappeared? |
