I was eight years old and wasn’t aware of all the arrangements being made for our journey as a family to London in 1950. My mother was in great pain and wished to visit specialists in London. My father reluctantly had to sell our property in Queensland. The day before we boarded the ship, Father unwillingly said goodbye to his five-year-old cattle dog, Spider, who was loved by us all. Father’s friend Sandy was to be his guardian while we were overseas, as he had been getting to know Spider for many weeks.
Six weeks later, an airletter arrived from Sandy, giving my father the news that Spider had run away just two weeks after we had sailed. Sandy had advertised constantly on ABC and other regional newspapers. Despite many “sightings”, the dog was never found. It seems Spider just kept running and searching for us. As he was cattle dog, my father thought he would shoe or dingo-trapped, because of his appearance. But our family thought that Father held a secrets hope that Spider was still alive.
We sailed back to Australia two years later and re-established our home. My father immediately began his own search for Spider. One cold winter’s Saturday morning eight months after our return, my father had a call from an elderly lady living on her own on the outskirts of the town. As she told my father on the telephone, it was “just glimpses of a dingo-type dog in the shadows” of her disused tennis court. That was enough for my father to interrupt my homework.
We set off in his blue and black Jensen car which he had brought back from England. It was hardly the right vehicle for the rough roads we travelled that day. Five and a half hours later, we found the run-down old property. Sadly, she told my father that the “dingo dog” hadn’t been around for a few days. My father had a strange look in his eye. He put two fingers to his lips and did his special whistle for Spider.
注意：1. 续写词数应为150个左右；
2. 请按如下格式在答题卡的相应位置作答。
Suddenly there was a sound in the bush.
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Once home we had the task of getting all the prickles (刺) off him.
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
2 . People have come to understand the enormous impacts-beneficial as well as harmful- plastics have on human lives and the environment. As polymer (聚合物) scientists committed to inventing sustainable solutions for real-world problems, we set out to tackle the issue of plastic waste by rethinking the way polymers are designed so we could make plastics with recyclability built right in.
Everyday items including milk jug, grocery bags, and takeout containers are made from a class of polymers called polyolefins. These plastics are really durable (耐用的) because the chemical bonds in those polymers are extremely stable. In a world set up for disposable (一次性的) items, durability is no longer a design feature but rather a design drawback. Imagine if half the plastics used today were recyclable through twice as many processes as they are now. Also conventional recycling requires careful sorting of all the collected materials, which can be challenging with so many different plastics. For example, separating paper from metal doesn’t require complex technology, but sorting a container from a milk jug of a different polyolefin is difficult to do without the occasional mistake.
In a study published in Science in October 2023, we described a series of polymers with only two building blocks-one soft polymer and one hard polymer-that behave like polyolefins but could be chemically recycled. Connecting two different polymers multiple times until they form a single, long molecule (分子) creates what’s called a multiblock polymer. By changing how much of each polymer type goes into the multiblock polymer, our team produced a wide range of materials with properties that covered all polyolefin types.
Using the same strategy but by adding hydrogen, we could disconnect the polymers back into their building blocks and easily separate them to use again. When we made new polymers out of these recycled plastics, they performed just as well as the original materials even after several rounds of chemical recycling. So we were able to create materials with similar properties of the plastics the world relies on. We believe this work is a step toward more sustainable plastics.
1. What is paragraph 2 mainly about concerning plastics?| A．Their multiple uses. | B．Their chemical properties. |
| C．Their recycling challenges. | D．Their classification criteria. |
| A．mixing building blocks with long molecules |
| B．integrating chemicals into the two polymers |
| C．combining two different multiblock polymers |
| D．adjusting the percentage of the two polymers |
| A．They are made from sustainable materials. |
| B．They can be recycled by adding hydrogen. |
| C．Their reliability outperforms traditional plastics. |
| D．Their properties change with rounds of recycling. |
| A．Designing for Recycling | B．Classifying Plastic Waste |
| C．Replace Plastics with Polymers | D．Technology Creates the Future |
3 . In the northernmost edge of Colombia sits the coastal town of Acandí. Access to the town is only by water or air; there is no road that leads there. The residents there are faced with the struggles of balancing livelihoods while protecting biodiversity.
In the past, traditional community fishing methods, passed down by the elders, focused on the reasonable fishing and management of resources. However, the introduction of large-scale trawling vessels(拖网渔船) decades ago gradually depleted the area’s fishing resources, leading to damage to marine(海洋的) life seriously.
Jesús Antonio Julio Cuestas, who serves in the region’s conservation and management of marine resources, stresses the bad impact of these developments and calls for new fishing techniques. “Fishing and conservation co-exist as long as we have good management practices and reasonable use of our fishing resources,” says Cuestas. He and other officials actively monitor fishing activities in Acandí. Each morning, they visit the fish markets to gather data on fishery resources—including prices and sizes—to monitor the state of the local fishing industry.
Along with Cuestas, the fishers work to reduce their impact on the marine ecosystem. By changing fishing methods and adopting new practices, they aim for a more balanced approach to fishing. “This year the local fishermen have not used the trawl net s that were causing the death of the leatherback sea turtles,” explains Cuestas proudly. Changes include the efforts of boats to protect the seagrass that serves as feeding grounds for marine life and an end to fishers throwing net s where turtles lay their eggs.
This marine reserve in Acandí, Cuestas believes, is their greatest treasure. He attaches great importance to working together with local residents to improve the quality of life while preserving the marine ecosystem. By doing so, he imagines a picture where individuals from the fishing community can pursue various careers, such as engineers or lawyers, proudly stating that they are the products of the fishing tradition in Acandí.
1. What does the underlined word “depleted” in paragraph 2 mean?| A．Reused. | B．Restored. |
| C．Explored. | D．Reduced. |
| A．To cut down on the costs of fishing. |
| B．To improve the income of local residents. |
| C．To promote the well-being of marine wildlife. |
| D．To spread traditional community fishing methods. |
| A．The aim of the changes to fishing methods. |
| B．The efforts to preserve marine ecosystem. |
| C．The results the trawl net s have brought about. |
| D．The impact of fishers on the local environment. |
| A．Confident. | B．Uncaring. |
| C．Concerned. | D．Doubtful. |
4 . Every year, as the surface water temperature off the United States mid-Atlantic coast rises steadily from late spring through the summer, a pocket of uncharacteristically cool and crisp water gets trapped at the bottom of the ocean. Packed with nutrients this thick band of cold water, known as the mid-Atlantic cold pool, is a vital home for shellfish species. Extending at its seasonal peak from Nantucket, Massachusetts, to Cape Hatteras, North Carolina, the cold poll creates a diverse ecosystem ranging from algae(海藻)to fish — and some of the most valuable shellfish fisheries in the United States.
Now, however, two pressures have scientists worrying about whether the cold pool will last. The first is no surprise: climate change. Over the past five decades, climates change has destabilized the cold pool, causing it to warm and shrink. Compared with 1968, the cold pool is now 13℃ warmer and has lost more than one-third of its area.
The second concern is 1ess certain. In 2023, the US federal government approved plans to install(安装)98 wind turbines(涡轮机)off the New Jersey coast, covering an area of more than 300 square kilometers. Yet putting so many turbines to the seafloor could have unexpected consequences for the cold pool. That’s why Travis Miles, a researcher at New Jersey’s Rutgers University, and his colleagues are investigating. So far, Miles and his colleagues can’t definitively say what will happen to the cold pool, saying more research is needed to assess how climate change and offshore wind, together, could affect the cold pool. However, their initial analyses suggest the cold pool should be fine — at least in normal conditions.
New Jersey’s offshore wind plans are strongly opposed mainly by fossil fuel-industry funded efforts. Miles worries that an overabundance of caution or fear of potential impacts, including on the cold pool, might slow down the development of renewable energy. “...it’s quite clear that climate change is far more damaging than installing wind farms,” he says. “I don’t think any scientist would argue with that.”
1. What do we know about the mid-Atlantic cold pool?| A．It forms in early spring. | B．It’s a band of cold near-bottom water. |
| C．It serves as a habitat of most sea species. | D．It extends from Nantucket to New Jersey. |
| A．Break down. | B．Get polluted. | C．Dry up. | D．Become smaller. |
| A．supportive | B．dismissive | C．overcautious | D．skeptical |
| A．The Cold Pool Plays a Role on species |
| B．Opinions Divide on Offshore Wind Farms |
| C．Scientists Eye Potential Risks to the Cold Pool |
| D．Renewable Energy Helps to Race Against Climate Change |
5 . Meat, milk, cheese — just some of the things provided by goats. But now we can also add fire safety to this list. As wildfires damage increasingly large areas of the planet each year, goatherds (牧羊人) may offer a way of reducing the risk.
Wildfires are made possible by hot, dry weather conditions as well as a supply of dead plants that serve as fuel. We may have limited control over the former factor, but we can control the latter. Reducing the fuel load lowers the possibility of wildfires occurring, as well as the amount of damage caused. This is where we can turn to goats to search for a solution, which are being used for landscape management in a number of places around the world, including Greece, Spain, Portugal, Chile and a number of parts of the United States.
Goats have an extremely powerful digestive (消化的) system. Many kinds of plants that are dangerous to other animals can be easily eaten by goats. It’s not just fully-grown plants that goats are able to deal with: any seeds that pass through a goat can’t survive and will not grow. Human clearance teams have to worry about getting to the hard-to-reach places where plants grow but goats don’t. They are skilled mountain climbers and when standing on their hind legs, they can reach up to two metres to the plants that humans would struggle to reach. Because of this, using goats can reduce both the possibility of workplace accidents and the amount of money spent on fire protection measures. Goatherds have been found to clear some parts of land for a third of the price of human control teams.
Cost and safety aren’t the only benefits. Goats are quieter than grass-cutting machines and people usually prefer to see goats eating grass rather than litres of herbicide (除草剂). Children are often attracted to see the goats at work and this provides an opportunity to educate people about preventing wildfires.
1. Why can goats help to prevent wildfires?| A．They are not afraid of bad weather. | B．They are easily controlled by goatherds. |
| C．They have the strongest digestive system. | D．They can remove dead plants causing fire. |
| A．The fire protection measures that people often take. |
| B．The reasons why goats are used to prevent wildfires. |
| C．The difficulty human clearance teams have preventing fire. |
| D．The effects goats have on the natural balance of mountains. |
| A．Herbicide will not be used to remove grass soon. |
| B．Children like goats because of their quiet character. |
| C．It’s a green way to prevent wildfires by using goats. |
| D．Herbicide works better than grass-cutting machines. |
| A．Firefighting Goats. | B．Clever Goatherds. |
| C．Damage Caused by Wildfires. | D．Ways to Prevent Disasters. |
Last summer, Hilda worked as a volunteer with dolphin trainers at a sea life park. Her job was to make sure the tanks were free of any items so that the trainers could train the dolphins to fetch specific items. However, one day after cleaning, one of the dolphins, Maya, presented Hilda with a candy wrapper from the tank. When Katherine, the trainer, saw this, she blamed Hilda for her carelessness. Upset but not discouraged by this event, Hilda decided to do some spying on Maya.
The next morning, Hilda arrived at the park early. She put on her scuba gear (水下呼吸器) and jumped into the tank for her usual, underwater sweep. Finding nothing in the tank, she climbed out of the water just in time to see Katherine jumping in on the other side. After what happened yesterday, Hilda knew what she was doing. She watched as Katherine performed her underwater search, but Hilda wasn’t surprised when she surfaced empty-handed.
During the tank sweeps, Maya had been swimming playfully, but now the dolphin stopped suddenly and swam to the back part of the tank where the filter (过滤) box was located. She stuck her nose down behind the box and then swam away. What was Maya doing back there? Hilda wondered. She jumped back into the water and swam over to take a look behind the box, and her question was answered. Hilda then swam across the tank following Maya’s path and emerged from the water to find Katherine removing her scuba gear. As Katherine turned around, her mouth dropped open. There was Maya at the edge of the tank with a comb (梳子) in her mouth waiting for her treat.
“Maya! Where did you get that?” demanded Katherine, taking the comb and throwing her a fish. “I know where she got it,” declared Hilda climbing out of the tank with a handful of items still wet from their watery, resting place. “What’s all this?” Katherine asked, obviously confused.
注意：(1)续写词数应为150个左右;
(2)请按如下格式在答题卡的相应位置作答。
“This is Maya’s secret,” Hilda said with a big smile.
__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Now Katherine realized what had been going on.
__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________7 . Parrots are prey animals, which means that other predators (捕食者) in the wild, such as hawks or snakes, are looking to make them into a meal. This one factor influences parrots’ behavior in your house more than any other.
Parrots are most easily hurt when feeding on the ground. Membership in a group plays an important function in ensuring their safety and improving their chances of survival from attacks by predators. The most common predators of parrots include hawks, snakes, cats, monkeys, and bats. Some predators make attacks only during the day while others hunt in the night.
As prey animals, parrots are constantly watching out for danger and they instinctively (本能地) react to risks. Their first choice is to take flight. However, if this is not possible, they will fight with their powerful beaks to defend themselves.
Because their biggest enemy is the hawk, parrots are especially reactive to quick movements from above and behind. For this reason, it is wise to avoid quick, sudden movements near your bird. This is a built-in reaction not subject to logic or reason. Simple and relatively harmless household objects can draw extreme fear responses from a bird. For example, a balloon may represent a hawk or a vacuum hose (吸尘器软管) may be the same as a snake in your bird’s mind.
As prey animals, parrots are often frightened by exposure to new household items or strangers. It is important to expose your bird to safe experiences and changes starting at a very young age to build flexibility and improve their adaptability. Variety in diet and toys, travel, and exposure to new people and places all help to make your bird more flexible and adaptable to change.
1. What is important for parrots to better survive from attacks in the wild?| A．Living in a group. | B．Growing beautiful feathers. |
| C．Feeding on the ground. | D．Avoiding coming out at night. |
| A．To attack back. | B．To get away. |
| C．To protect the young. | D．To play dead. |
| A．It may explode suddenly. | B．It may be in a strange shape. |
| C．It may have a strong color. | D．It may move around quickly. |
| A．To explain wild parrots’ behavior. | B．To give advice on raising a parrot. |
| C．To call for action to protect animals. | D．To introduce a study on bird ecology. |
8 . Overlooking the Biblioteca degli Alberi is Milan’s “Vertical (垂直的) Forest”: two residential tower blocks built in 2014 that are covered in 800 trees,4,500 shrubs and 15,000 plants. If this forest was planted on the ground, it would cover 20,000 m2— the size of three and a half football fields.
Each year the trees will absorb 10,000 tons of CO2 and 57 tons of pollutants. They should also produce about 900 tons of oxygen. Boeri’s team of architects says the plants will also decrease the average air temperature, create noise barriers and boost biodiversity by creating a habitat for birds, insects and small animals.
It is not just physical wellbeing that is aided by large green structures in our cities. The team behind Sydney’s 100mhigh “vertical garden” claims it is a new form of “living architecture” that reminds us of “the restorative impact that nature has on our souls”. Just how restorative living near trees and plants is for our souls is open to debate; but studies in Germany have suggested that it can be extremely beneficial for our brains.
Scientists examined brain image sequences (顺序) of 341 elderly residents of Berlin, focusing particularly on the amygdala —the part of the brain that controls our fear responses and is responsible for stress and anxiety disorders. They found that there was strong connection between residents living within 1km of the forests on the edge of the city and those with the healthiest amygdala. A health y amygdala means being less likely to suffer from the stress and anxiety disorders controlled by this part of the brain. Mood and anxiety disorders are up to 56%higher in urban environments when compared to rural locations.
With two-thirds of the world’s population predicted to be living in cities by 2050, Milan’s Vertical Forest might show the world a way to create healthier, happier urban spaces.
1. What does Paragraph 2 mainly talk about?| A．The area of the city forest. | B．The way of building city forest. |
| C．The positive influence on the city forest. | D．The expected effect of the city forest. |
| A．Favorable. | B．Suspicious. | C．Objective. | D．Indifferent. |
| A．amygdala controls our fear responses |
| B．living near forests is beneficial for our souls |
| C．people near the forests are less likely to feel anxious |
| D．more residents will live in Vertical Forest in the future |
| A．Cities are turning suitable for people to live in. |
| B．There is a worldwide focus on how to improve biodiversity. |
| C．Milan’s Vertical Forest becomes an example of urban biodiversity. |
| D．The Vertical Forest covers the size of three and a half football fields. |
9 . Whenever I order food for delivery, I play a little game to guess how many sets of tableware(餐具)the restaurant will provide with my meal. Sometimes restaurants will throw in two, three or four sets for just one order. But I rarely need any tableware at all, and the waste goes into the trash or collects dust in a kitchen drawer.
Researchers working with Chinese technology group Alibaba tried a simple approach to this problem. Instead of just wastefully doling out tableware, the company required food-delivery customers in some cities in China to pick how many sets of tableware they wanted to receive.The default (默认设置)was set at zero. The result, published today in the journal Science, was a 638% increase in the share of no-tableware orders. If applied across China, researchers found, the approach would save nearly 22 billion sets of plastic tableware. The study doesn’t cover carbon emissions, but it’s safe to say that the impact would be significant. It struck me as a useful reminder of the many low-hanging fruits across the economy that can cut waste, and emissions.
Nudging its customers cost Alibaba nothing more than a few hours of software engineering time and the impact it brought was immense. The concept of nudging comes from the field of behavioral economics known as nudge theory. It suggests that a slight action can encourage good human behavior without the need for policies that limit choice or economic punishment that raises the cost of bad behavior. To nudge customers to eat better, for example, a restaurant might organize its menu by listing healthy options first and bury unhealthy ones at the bottom. More recently, some big companies like Google have also begun to use nudges to advance climate objectives.
Behavioral economics broadly, and nudges more specifically, aren’t without controversy. Some might think it assigns consumers responsibility for addressing environmental challenges. But there is another way to look at it. In the absence of necessary policy—and policy is needed一companies can help encourage a widespread shift of consumer behavior.
And all of that behavioral change can add up. The International Energy Agency found in 2021 that small behavioral changes in energy consumption such as walking instead of driving and adjusting the thermostat could in total shave off 4% of global emissions. The more that companies can do to facilitate such changes, the better.
1. What did Alibaba do with tableware waste?| A．It stopped restaurants from handing out tableware. |
| B．It withdrew unused tableware from customers. |
| C．It updated the food -delivery device regularly. |
| D．It allowed picking tableware at customers’ demand. |
| A．Easily accessible things. | B．Fast increasing orders. |
| C．Exceptionally tough choices. | D．Widely accepted strategies. |
| A．It brings about economic loss. |
| B．It results from consumption policies. |
| C．It indicates small action changes behaviour. |
| D．It implies bad behaviour impacts economy. |
| A．Nudge theory affects behaviors. |
| B．Good behaviors boost economy. |
| C．Nudging helps build a greener world. |
| D．Behavioral economics benefits customers. |
10 . The first apes evolved 20 million years ago in the forests where they would go up a tree to get their food, and then come back down to move on to the next tree. Getting out of a tree presents all kinds of new challenges. Big apes can’t afford to fall because it could kill or badly injure them. Natural selection would have favored those with body structures that allowed them to descend safely.
Dartmouth researchers report in the journal Royal Society Open Science that apes probably evolved free-moving shoulders and flexible elbows to slow their descent from trees as gravity pulled on their heavier bodies. These flexible body parts passed on from ancestral apes would have allowed early humans to climb trees at night for safety and comedown in the daylight unhurt. When early humans transitioned from forests to open savannas (热带稀树草原), flexible shoulders and elbows were crucial for gathering food and using tools for hunting and defense.
The researchers used sports analysis and statistical software to study how primates(灵长目动物) like chimpanzees and small monkeys called mangabeys climbed in the wild. They found that chimps and mangabeys scaled(攀爬) trees similarly, with shoulders and elbows mostly bent close to the body. When descending, however, chimpanzees extended their arms above their heads to hold on to branches, much like a person using a ladder, to counteract(抵消) their heavier weight pulling them downward.
Luke Fannin, the lead author of the study, emphasized that their findings highlight the importance of “down climbing” in the evolution of apes and early humans. He explained, “Our research introduces the idea that down climbing played a significant role in shaping the structural differences between monkeys and apes, which eventually manifested in humans.”
“Our field has thought about apes climbing up trees for a long time, but we’ve been ignoring the second half of this behavior,” said Professor Jeremy DeSilva, “The findings are among the first to identify the significance of “down climbing” in the evolution of apes and early humans.
1. According to paragraph 1, apes would have been favored by natural selection if .| A．they have sufficient food resources. |
| B．they come down from trees securely. |
| C．they master skills of climbing up trees. |
| D．they cure themselves when they’re injured. |
| A．The similarity of two primates in tree climbing |
| B．The evolution of two primates’ adaptation to nature. |
| C．The analysis of primates’ tree scaling and descending |
| D．The application of different research methods and tools. |
| A．Descending trees has been neglected by researchers for a long time. |
| B．The study is the first to recognize the significance of down climbing |
| C．The evolution of apes and early humans is a result of down climbing. |
| D．Studies on climbing down trees are more likely to have new findings. |
| A．Chimpanzees and Mangabeys: Researches in Natural Settings |
| B．Apes and Humans: A Comparative Study of Climbing up Trees |
| C．Shoulders and Elbows: Evolved as Brakes for Downclimbing Apes |
| D．Apes’ Climbing Strategies: How to Use Different Body Parts Flexibly |
