1 . Slobodchikoff, a biologist who has spent years working to better understand the calls of dogs, used that knowledge to help people who were having trouble with their pets.
A man reported his dog wanted to bite him. So Slobodchikoff went to the man’s house. He watched as the owner walked over to the dog, towered over the pet and then said, “Good dog!” in a low-pitched(音高) voice. “The dog ran into a corner,” Slobodchikoff recalled. The owner had scared the dog. Slobodchikoff recommended that the man should do the opposite. The owner took that advice—and ended up developing a great relationship with his pet.
Not everyone has the time to study dog communications or the money to bring in an expert. Slobodchikoff thinks tech could help. He thinks a cell phone app or device that you could point at a dog. This would record video and audio(音频) of a dog’s behavior and then upload it.An artificial intelligence(AI)system would later analyze it.
The AI “ would translate this for you into English or any other language,” says Slobodchikoff. The result, he explains, may be something like “‘I’m hungry’ or ‘I need to go outside to pee’ or ‘I want to go for a walk.’”
To train the AI system, Slobodchikoff planned to get data directly from pet dogs, but for some reason, he hasn’t yet restarted the project to date, but hopes to soon.
Search an app store for a pet translator and you’ll find plenty. Some are completely unscientific and silly. MeowTalk, however, is a cat-translation app based on an AI model. In 2021, its creators reported that the AI model achieved 90 percent accuracy at identifying nine different emotional states in meows. These included angry, happy, hunting, pain and rest. The app picks conversational phrases based on these emotions, like “nice to see you,” or “let me rest.”
People who have tried the app say it doesn’t always work well. But better translations of barks and meows may be just around the corner.
1. What might the man do to calm the dog?| A．Tower over the pet dog. | B．Follow the dog to the corner. |
| C．Give the dog delicious food. | D．Speak in a high-pitched voice. |
| A．To analyze data. | B．To train a dog. |
| C．To record a dog’s behavior. | D．To collect data from a dog. |
| A．It can communicate with cats. | B．It can judge cats’ state of mood. |
| C．It can store 90 conversational phrases. | D．It can be used to track pet cats. |
| A．A biologist’s puzzle. | B．Slobodchikoff’s achievements. |
| C．Trials of animal translator technology. | D．The invention of Slobodchikoff. |
2 . An owl (猫头鹰) named Flaco escaped New York’s Central Park Zoo last week after his cage was broken. This set off a bird-hunt of police officers and park rangers (护林员). Zoo officials worried that Flaco, who had been kept in his zoo cage for 13 years, may have lost the survival abilities he needed in the wild. They placed some of his favorite treats in the open air to attempt to trap him.
Flaco was not fooled. Instead, he was sighted flying over5th Avenue, and Central Park’s skating rink. A number of New Yorkers came into Central Park to try to catch a glimpse of Flaco, taking photos with excitement.
But this week, zoo officials announced they accepted that Flaco remained in Central Park because he had been seen bringing up bones and fur from the park’s community of rats. “He has been very successful at hunting and consuming lots of rats in the park.” zoo officials told the New York Post.“ And that’s amazing. He’s hunting on his own. He’s flying better. Flaceo really seems to be enjoying himself out there.”
There is a caution attached to this story of an owl who is making it on his own in the city that never sleeps. Owls are nocturnal. They go around searching for food at night. They sleep during the day, or try to, like lots of people who work the overnight shift. Yet some New Yorkers who don’t know proper bird-watching behavior reportedly see Flaco sleep in a tree during the day, and begin to shout at him. It interrupts his sleep. Flaco can’t try to say “shh, shh” with the traditional New York reply. After all, a bird can’t give someone the bird.
1. Why were zoo officials concerned about Flaco’s ability to survive?| A．Because his favourite food was too little. | B．Because he might be attacked by police. |
| C．Because his cage was severely damaged. | D．Because he was kept in his cage for long. |
| A．He has adapted to the wild. | B．He has found his previous home. |
| C．He still faces great challenges. | D．He dislikes the rats in the park. |
| A．Scary-looking. | B．Shy and quiet. |
| C．Active at night. | D．Badly-behaved. |
| A．Cautious. | B．Favorable. | C．Unclear. | D．Disapproving. |
3 . Flora was playing with her new dog Stitch, while wearing a favourite second-hand sweater. Stitch jumped up and grabbed her sleeve-and tore several holes in it with her sharp teeth.
Flora wasn’t about to throw the item out. “I can’t bring myself to throw away nice clothing just because of a hole, ”she explains. She decided to tackle a new skill repairing. She began by reading a book called Make Do and Repair, about the innovative ways to avoid waste.
Instead of tying to make the repair as small as possible, she turned to “visible fixing, ”a fashion in repairing clothes that leaves an intentionally obvious fix. She added flowers, or other small designs to damaged clothes. “Every time you do a repair, it’s like getting a new piece of clothing, ”says Flora.
Sadly, we have been in the habit of replacing things instead of repairing them—and the garbage is piling up. Worldwide, we throw out 92 million tonnes of fabric every year.
The good news is that fixing things can help solve the waste problem. It’s part of a larger shift toward a circular economy -the idea that instead of throwing out items once they are broken or out of date, we reuse or repair them, keeping them out of the waste yard for as long as possible.
There was a time when people fixed things themselves or called their local repair shop, But as more items were produced and prices dropped, replacing even a big appliance became more convenient.
That’s changing, in part due to information now available online. The popular how-to site iFixit. com has enabled more than 100 million repairs.
“Companies have been designing products that break easily or become outdated quickly, forcing consumers to buy new ones or purchase upgrades. We’re now seeing some producers show interest in making it possible for users to repair things. Some companies are selling official parts and sharing their repair guides through iFixit. IFixit has grown into a database with over 100, 000 repair manuals. We have this vision of a world where repair is the expectation for all things that are made, ”says Chamberlain, director of iFixit.
1. Why did Flora read a book?| A．For innovation. | B．For repairing skills. |
| C．For a better life. | D．For dog-raising information. |
| A．People’s habit. | B．Repairing quality. |
| C．Fabric production. | D．Worldwide garbage. |
| A．To remove landfills. | B．To increase production. |
| C．To help exchange goods. | D．To realize resource cycle. |
| A．He expects more wiser users. |
| B．He supports purchase upgrades. |
| C．He creates the repairing database of iFixit. |
| D．He has a desire for companies and consumers. |
4 . The “mark test” (or “mirror test”) is a way to test animal intelligence — whether an animal can recognize itself, especially animals with large brains. A mark is put on an animal, usually in a spot that can only be seen with a mirror. Then the animal is allowed to look in a mirror. If the animal seems to pay attention to the mark, scientists believe the animal has recognized itself.
But some scientists believe the mark test doesn’t work well for all animals. Roosters (公鸡) are a good example. Scientists at the University of Bonn recently ran the mark test on roosters. They put a pinkish triangle on the chest of the roosters. But when the roosters looked in a mirror, they didn’t seem to notice the mark.
The scientists needed a different way to test whether the roosters could recognize themselves. When there’s danger — like a hawk (鹰) flying above — roosters make loud calls to warn nearby chickens. But roosters only make the cries if other chickens can hear them. If they’re alone, they remain quiet so the hawk won’t see them. The scientists realized that they could use the shadow of a hawk to test if roosters could recognize themselves in a mirror.
First, the scientists let the roosters spend time getting used to being in a closed-in space and having a mirror around. Then, they ran several tests by making a hawk shadow appear above the bird and watching how the rooster reacted.
When there was no mirror, the roosters reacted as usual. They called out when they were near another rooster, but remained quiet when they were alone. But when a rooster was in a space where it could see itself in the mirror, it wasn’t fooled into thinking there was another rooster. It remained silent despite the hawk shadow.
It proves the roosters knew they were seeing themselves in the mirror, and not other roosters. That suggests that the mark test may not be a good test of whether an animal can recognize itself.
The scientists hope their results will encourage other scientists to look for better ways of testing self-recognition in animals.
1. What is the purpose of the “mark test”?| A．To test a bird’s ability to fly. |
| B．To measure an animal’s brain size. |
| C．To see if an animal can recognize itself. |
| D．To compare different animals’ intelligence. |
| A．By testing their eyesight with a mirror. |
| B．By putting a mark on the roosters’ chest. |
| C．By placing two roosters before the mirror. |
| D．By observing their reactions to a hawk shadow, |
| A．Roosters are not intelligent animals. |
| B．The mark test is a reliable measure of self-recognition. |
| C．The mark test may not accurately determine self-recognition. |
| D．Roosters can recognize themselves better than other animals. |
| A．Conducting more experiments on roosters. |
| B．Using the mark test on other bird species. |
| C．Studying self-recognition in dolphins and elephants. |
| D．Searching for better ways to test animal intelligence. |
5 . South Baltimore is surrounded by water, highways, and train tracks. It’s also often thought of as a place to avoid—folks are taught to be careful of or even avoid South Baltimore. “People think South Baltimore is a place filled with danger. It’s not. It’s just we’re surrounded by dangerous things,” says Taysia, 17.
Taysia is part of a group of student activists fighting against a very different kind of danger in their neighborhood: air pollution and climate change. Lots of trucks with their noise pass through the neighborhood. South Baltimore is also home to a junkyard where they crush (压碎)cars, an old landfill, chemical plants, and mountains of coal. These are not the communities anyone wants.
The residents of South Baltimore are breathing polluted air today. Coal releases a black dust that’s small enough to get into people’s lungs. It can cause disease and death if you’re breathing it day after day. The mountains of coal are the focus of a growing opposition movement called Free Your Voice, led by South Baltimore teenagers.
The teens of Free Your Voice are taking on a big opponent (对手): the massive transportation company CSX, which transports more than 8 million tons of coal through South Baltimore annually. CSX makes billions of dollars a year.
The teens went door to door, warning their neighbors about the dangers of the coal transportation. Not everyone was on board at first. “We were talking to people and that’s just like, ‘You’re a kid! Like this is not gonna change, it’s been happening forever.’” Taysia says.
Meanwhile, the students spent the summer using sticky paper to gather samples of dust from all over the neighborhood to prove that the dust was from coal and to pinpoint which parts of the neighborhood were most affected.
The goal is to eventually get the state regulators to deny the permit that CSX needs to operate, or at least require the company to enclose all the coal, or at the very least put water onto all of it so there’s less dust blowing around. And the state is considering all of those requests.
1. How did people describe South Baltimore according to Taysia?| A．Wealthy. | B．Dangerous. | C．Peaceful. | D．Inclusive. |
| A．The junkyard. | B．The old landfill. |
| C．The chemical plants. | D．The coal transportation. |
| A．They believed the pollution was harmless. |
| B．They trusted CSX’s environmental practices. |
| C．They had no awareness of the pollution and climate change. |
| D．They thought the students were too young to make a change. |
| A．Conducting surveys. | B．Distributing leaflets. |
| C．Using sticky paper for dust samples. | D．Organizing protests. |
Stretching along the west coast of North America from northern California to Alaska, the forests found along the Pacific Coast Range are the largest area of temperate (温带的) rainforest in the world. The forests are home to the coast redwood, the world’s tallest tree. Across the region, the forest understory (林下叶层) is wet and heavily vegetated.
Taiheiyo Evergreen Forests
Found in southern Japan, they are temperate rainforests of evergreen broadleaf trees. The forests can receive more than 100 inches of rain every year. The forests are covered by Japanese cedar and Japanese stone oak, while moso bamboo comprise the understory. The extent of the Taiheiyo forests has been reduced due to development and agriculture. Today,17%of the remaining forest is protected by national parks and other reserves.
Atlantic Oakwood Forest
The Atlantic Oakwood Forest covers the wettest parts of the United Kingdom. A species of oak tree (橡树) called sessile oak occupies the landscape. Unlike other temperate forests, these forests tend to have an open understory of grasses. Much of the historical range of the forest has given to agriculture and other development, though that has changed in recent decades.
Valdivian Temperate Rainforest
This forest is found on the west coast of Chile and Argentina, on the wet, western slopes (斜坡) of the Andes mountain range. With the coastline to the west, the peaks of the Andes to the east, and the Atacama Desert to the north, the region supports a number of plant and animal species found nowhere else in the world. Uniquely, the forest is covered by evergreen flowering trees, which are native to Chile and little known outside the region.
1. Which of the four forest areas occupies the most land?| A．Pacific Coast Range. | B．Taiheiyo Evergreen Forests. |
| C．Atlantic Oakwood Forest. | D．Valdivian Temperate Rainforest. |
| A．They have open understory grasses. | B．They’re home to extremely tall trees. |
| C．They’re of great historical significance. | D．They used to be affected by agriculture. |
| A．Wet climate. | B．Coastal location. |
| C．Evergreen flowering trees. | D．Well-protected national parks. |
7 . Growing plants at home is a fun and enjoyable activity to do and can be developed as a new hobby.
Gardening reduces stress. Gardening is one of the most effective, and fun ways to free yourself from the physical, mental, and emotional stress you have been carrying since the beginning of the week. If you are overworking yourself during the weekdays or seeing yourself drowning in stressful thoughts, try to spend your weekends gardening at home.
Gardening is good for your heart. Gardening requires our body to move around by doing simple tasks such as digging the ground, planting seeds, pulling out weeds, and carrying a water container’s load.
By spending our free time gardening and monitoring our plants’ growth, we are also taking care of ourselves as we gain lots of health and emotional benefits. It is a worthwhile activity because we get to see the results of our hard work when our plants start growing fonder and healthier. The way we take care of our plants reflects the way we take care of ourselves.
| A．Gardening is an act of self-love. |
| B．Gardening is good for your bones. |
| C．Gardening helps your body against diseases. |
| D．You will see a significant change in your mind. |
| E．These simple gardening tasks can be considered a low-level exercise. |
| F．It also has several positive health and emotional benefits that you can enjoy. |
| G．Returning home to a place full of beautiful plants helps us enjoy the freshness of the air. |
8 . A new study warns that more than a fifth of all reptile (爬行动物) species are threatened with extinction, which may have a bad impact on the planet.
The largest ever analysis of the state of the world’s reptiles, published in Nature, has showed that 21% of the reptile species are facing extinction. The study says from lizards to snakes, such a loss could have disastrous impacts on ecosystems around the world.
Although many reptiles live in dry environments such as deserts, most species occur in forests, where they suffer from threats such as logging of land for agriculture.30% of the forest-dwelling reptiles are at risk of extinction, compared with 14% in dry habitats. Hunting is also a major threat to reptiles, especially turtles and crocodiles, many of which are at risk of extinction. Another major contributing factor is the introduction of invasive species.
“If we removed reptiles, it could change ecosystems fundamentally, with unfortunate knock-on effects, such as increases in pest insects,” said Neil Cox, co-leader of the study. “Biodiversity, including reptiles, supports the ecosystem services that provide a healthy environment for people.”
Our hope is that this first-ever assessment of the world’s 10,000-plus reptiles helps put them in the spotlight and goes some way to highlighting this diversity, and just how much we have to lose. As well as controlling rats, mosquitoes and other pests, reptiles deliver many other benefits. “They help spread seeds, especially in island environments,” said researcher Hoffmann. “We’ve also achieved many medical advances from studies of reptiles.”
The results of the study are not all doom and gloom. Scientists have found, surprisingly, that if they set out to protect places where threatened birds, mammals and amphibians (两栖动物) live together, they’ll meanwhile protect many more threatened reptiles.
1. Which is the main concern raised by the new study?| A．The overpopulation of reptiles. | B．The loss of reptiles. |
| C．The sharp increase in reptile species. | D．The disastrous influence of reptiles on nature. |
| A．One. | B．Two. | C．Three. | D．Four. |
| A．Their benefits. | B．Their habitats. |
| C．Their living habits. | D．Their health problems. |
| A．Disappointing. | B．Odd. | C．Satisfactory. | D．Amazing. |
9 . Plastic is everywhere in our modern world. Its toughness makes it an extremely useful material from household items to vehicle parts, but that same toughness makes it hard to break down for recycling or disposal (处理). However, Japanese scientists at the University of Tokyo have developed a new plastic material that can be broken down more easily and can self-heal and remember past shapes.
Based on a kind of plastic called an epoxy resin vitrimer, which is brittle (脆性的), the new plastic boasts a huge range of advantages. Once scratched with a knife, it can completely patch itself up after being heated to 150 ℃ for just 60 seconds. When shaped into the shape of a crane, then flattened, it can fold itself back into the crane shape by being heated up. It does all of this much faster than others of its type.
The new plastic can also break down easier. Even if it’s discarded (丢弃) into the environment, it still poses less of a, problem than other kinds of plastic, which the team demonstrated by placing it in seawater for 30 days. It biodegraded by 25% and released molecules (分子) that are essential food for marine life.
The new plastic is more resistant to breaking. It can also repair itself, and can recover its original memorized shape. It even biodegrades safely in a marine environment, according to Shota Ando, a researcher of the study.
The material can be used in a variety of applications, “Infrastructure materials for roads and bridges are often composed of epoxy resins mixed with compounds such as concrete and carbon,” said Ando. “By using the new plastic, these would be easier to maintain as they would be stronger and healable using heat. Unlike conventional epoxy resins, this new material is hard but stretchable, so it could also be expected to strongly bond materials of different hardness and stretch.”
1. What is the author’s purpose in writing paragraph 1?| A．To introduce the topic of the text. | B．To show the disadvantages of plastic. |
| C．To highlight the importance of plastic. | D．To indicate his views on previous plastic. |
| A．Change itself. | B．Shape itself. | C．Repair itself. | D．Burn itself. |
| A．It is safe for animals in the ocean. | B．It can provide nutrition for animals. |
| C．It can change its shape when frozen. | D．It is more brittle than previous plastic. |
| A．Research Of New Molecules | B．An Interesting Scientific Study |
| C．The Widespread Application Of Plastic | D．A New Environmentally Friendly Plastic |
10 . Landscape architect Kotchakorn Voraakhom has designed a new green roof on the Rangsit Campus of Thammasat University, about 25 miles north of central Bangkok, Thailand. Her imaginative work challenges the common thinking that urbanization has a negative impact on the planet, whether flooding, excess (过度的) energy use, disrupted (扰乱) biodiversity or the heat island effect.
The 236, 806-square-foot structure, which opened in December 2019, includes a flood water management system and Asia’s largest rooftop organic farm. It combines modern landscape architecture with traditional agricultural knowledge, creating a green and friendly environment.
The green roof, containing an H-shaped landscape, looks like a futuristic hill with a brick building beneath it. The hill features a complex pattern of zigzagging terraces (之字形梯田) of planted beds, leading all the way down to the bottom. When rainwater hits the roof, it flows down the zigzags while being absorbed by the soil in the beds, The excess water is directed into four storage ponds — with a capacity of up to 3 million gallons. The process slows down the flow speed of rainwater runoff compared to a normal concrete rooftop. This keeps the area from flooding during heavy rains.
The roof’s terraces are filled with organically grown crops, including a drought tolerant variety of rice, many local vegetables and herbs. The farm can supply the canteens on campus with a large amount of rice, herbs and vegetables a year. The food waste is composted (把……制成堆肥) to fertilize the farm, and water from the storage ponds is used to water plants, creating an entirely localized and circular system.
The farm serves as an outdoor classroom and a source of local jobs, too. Farmers offer workshops on sustainable agriculture and nutrition as part of the university’s sustainability curriculum. “Students and community members are invited to participate in seasonal seeding, harvesting, and so on,” says Voraakhom. “The urban farm is training a new generation of organic farmers with real-world skills. It also promotes a sense of community.”
1. What can we say about Voraakhom’s work?| A．It’s short-lived. | B．It’s creative. |
| C．It’s demanding. | D．It’s time-consuming. |
| A．To store more water. |
| B．To plant diverse vegetables. |
| C．To slow the speed of water flow. |
| D．To make it look more attractive than other buildings. |
| A．It uses food as fertilizer. | B．It benefits the environment. |
| C．It improves students’ lifestyle. | D．It produces vegetables and fruits. |
| A．Students can learn hands-on knowledge on the farm. |
| B．Farmers working on the farm can become professors. |
| C．The farm prevents government from offering people jobs. |
| D．The farm harms the relationship between university and community. |
