1 . 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. |
2 . In recent years, studies have suggested how the bisphenol A (BPA) in some food-packaging plastics has been linked to various health problems including heart disease and developmental difficulties in children. Scientists are thus developing a more harmless alternative, and it’s made from tomato waste which would otherwise be got rid of.
However, BPA is still widely used in the plastic coatings which are applied to the inside of metal food packaging such as cans. These smooth waterproof coatings help protect the metal from corrosion (腐蚀), plus they keep the food from sticking to the inside of the container.
Building on previous studies, an international team has researched a type of agricultural waste known as tomato pomace. This material typically consists of tomato skins, seeds and stems, which are left over after the fruits have been processed for use in foods such as sauces or juices. Ordinarily, the pomace is simply dumped in a landfill, burned, or at best composted. It may also be used in animal feed, although it doesn’t have much nutritional value.
The scientists started by drying tomato pomace — first in the sun for three days, then in a 60℃ oven for 16 hours — after which they grounded it into a powder. That powder was subsequently mixed with a sodium hydroxide solution (溶液), which was then heated at 100℃ for four hours. After repeatedly filtering that solution to remove the sodium hydroxide, the researchers were left a lipid. That lipid was then mixed into an ethyl alcohol solution which was sprayed onto samples of some metal. Once the spray had dried and the samples had been heated in a 200℃ oven for 10 to 60 minutes, the result was a polymerized lacquer coating which proved to be very effective at protecting the metal.
The scientists now plan on testing the coating on actual cans. “We would take tomato sauce, and other foods that are usually sold in cans, and we would sterilize them, put them in tins and check if they withstand real conditions,” said a scientist.
1. Which of the following is the most likely to use the plastic coating?| A．A pot full of water. |
| B．A cup filled with coffee. |
| C．A tin containing apple juice. |
| D．An iron box stuffed with packaged food. |
| A．It’s used as animal’s food with rich nutrition. |
| B．It has been used in the plastic coatings. |
| C．People use it to make sauce or juice. |
| D．People usually treat it in many ways. |
| A．How the new coating is created. | B．Why heating is important. |
| C．Why high temperature is needed. | D．What other materials are included. |
| A．To present a scientific study. | B．To introduce a new material. |
| C．To show a complex process. | D．To teach an actual test. |
3 . California has been using recycled wastewater for many years. A team has used it to make ice surfaces for the game of hockey(冰球运动). It has been used to make snow for the sport of skiing. And farmers use it to water their crops. But it has not been used directly for drinking water.
Recently, California officials approved new rules to let water agencies recycle wastewater and put it right back into the pipes that carry drinking water to homes, schools, and businesses. It is a big step for California.
California’s new rules would let—but not require—water agencies to take wastewater, treat it, and then put it right back into the drinking water system. That means proving to people that recycled water is not only safe to drink but also not dirty. California would be just the second US state to permit this, following Colorado. It has taken officials more than 10 years to develop these rules, a process that included several studies by independent groups of scientists.
A project in San Diego is aiming to produce nearly half of the city’s water through recycling wastewater by 2035. And the Metropolitan Water District of Southern California aims to produce up to nearly 570 million liters(升)a day for its 19 million people. Adel Hagekhalil is with Metropolitan Water. He said the new rules will permit new projects that have not yet been considered.
California’s new rules require the wastewater be treated for all bacteria and viruses, even if they are not present in the wastewater. In fact, the treatment is so intense that it removes all of the minerals that make fresh drinking water taste good. That means the minerals need to be added back at the end of the process. Polhemus is a director of the drinking water group for the California Water Resources Control Board. “It’s at the same drinking water quality, and probably better in many instances,” he said, adding that it takes time and money to build these treatment centers. So, they will only be available for bigger cities at first.
1. What does paragraph 1 mainly tell us about the recycled wastewater?| A．Its qualities. | B．Its functions. |
| C．Its target users. | D．Its disadvantages. |
| A．They made some new rules on pollution. |
| B．They spent ten years recycling wastewater. |
| C．They tried to make wastewater safe to drink. |
| D．They requested water agencies to speed up treating water. |
| A．Doubtful. | B．Favorable. | C．Pessimistic. | D．Indifferent. |
| A．The Process of Recycling Wastewater Is Complicated |
| B．California Tries to Reduce the Wastewater Generation |
| C．California Permits Turning Wastewater to Drinking Water |
| D．New Wastewater Treatment Projects Have Been Approved |
4 . The specific cultural values of a country may determine whether concern about environmental issues actually leads individuals to engage in environmentally friendly behaviors, according to research published in Psychological Science.
Kimin Eom, a psychological scientist of the University of California, Santa Barbara, was inspired to investigate the links between culture, environmental concern, and environmental action after noticing that both public discussion and academic research on environmental behavior typically focus on people from Western countries. It is worth noticing because Western countries tend to have cultural values that prioritize individuals’ own attitudes and beliefs and encourage expression of them.
“The theory seemed to be that once individuals are led to believe in the urgency of environmental issues and have stronger concerns about sustainability (持续性), they will change and act to address the issues,” explains Eom. But this relationship might not hold for individuals living in more collectivistic (集体主义的) societies, which place more emphasis on social harmony and uniformity than on self-expression, Eom and his team assumed.
To examine what drives environmental action in individualistic and collectivistic cultures, the researchers conducted a study with participants from the United States (an individualistic culture) and Japan (a collectivistic culture). They found environmental concern was closely connected with environmental behavior — in this case, choosing environmentally friendly products — but only among American participants. On the other hand, believing that a large percentage of people engage in environmentally friendly behaviors was associated with making eco-friendly choices among Japanese participants, but not American participants.
The findings suggest that personal concerns are more likely to motivate people to take environmental action if they live in individualistic countries, while social norms (准则) are more likely to drive people to engage in environmentally friendly behavior if they live in collectivistic countries.
“Getting citizens actively engaged is critical to addressing urgent social challenges, such as climate change,” says Eom. “Our research suggests that scientists, policymakers, and activists need to understand how culture shapes the psychological factors of action to develop policies, campaigns, and interventions (干预) that address important social issues.”
1. What does Eom find about previous research on environmental behavior?| A．Its study participants are too limited. |
| B．Its results need a while to be achieved. |
| C．It prioritizes individuals’ attitudes and beliefs. |
| D．It draws much evidence from public discussion. |
| A．If he sees many others do so. |
| B．If he is affected by collectivistic values. |
| C．If he moves to an individualistic country. |
| D．If he worries about the environment personally. |
| A．It fails to take participants’ psychological factors into account. |
| B．It encourages scientists and policymakers to make joint efforts. |
| C．It has a further study direction towards urgent social challenges. |
| D．It provides insights into promoting public engagement in social issues. |
| A．Social Norms Play a Part in Addressing Pollution |
| B．Environmental Issues Originate from National Cultures |
| C．Motivating Eco-Friendly Behaviors Depends on Cultural Values |
| D．More Environmental Concerns Usually Mean More Green Action |
5 . Janet, now 37, was playing with her new pet dog, Stitch, who jumped up, grabbed her sleeve, and tore several holes in her sweater with its sharp teeth. Instead of throwing the sweater away, Janet decided to repair it.
She turned to “visible repairing,” an idea of repairing clothes that leaves an obvious fix. She added bright flowers and other small designs to damaged clothes. “Every time you do a repair, it’s like having bought a new piece of clothes,” says Janet.
Actually, repairing is a great opportunity to realize the urgent (迫切的) need to reduce waste. Sadly, we have become used to replacing things instead of repairing them — and the rubbish is piling up. Worldwide, we throw away 92 million tons of cloth every year. Electronic waste is another growing problem: About 50 million tons of it is created each year around the world.
The good news is that fixing things can help deal with the waste problem. There are some solutions. Due to information online, the popular how-to site iFixit.com , a database (数据库) with nearly 100,000 repair brochures for everything from electronics to clothing, has promoted more than 100 million repairs. In addition, since the first Repair Café opened in2009 in Amsterdam, more than 2,700 cafés have been set up to offer in-person fix-it help in various countries. Organizers set up events, and volunteers with repair knowledge bring their tools. They will try to fix whatever people bring in, for free, and teach visitors how to do repairs themselves.
Fixing things is part of a larger change toward a circular economy —the idea that instead of throwing away things once they are broken or out of date, we reuse or repair them, keeping them out of the landfill (垃圾填埋场) for as long as possible. According to a 2023 report from Circle Economy, a Netherlands-based NGO, if the world changed to a circular economy, we could lower the amount of waste by a third.
1. What is the author’s purpose in mentioning Janet?| A．To praise her way of protecting pets. |
| B．To introduce special clothing designs. |
| C．To call for attention to repairing things. |
| D．To market the products of fixed clothes. |
| A．The action of replacing things is wise. |
| B．The behaviour of repairing things is popular. |
| C．The need for reducing clothes is urgent. |
| D．The problem of producing waste is serious. |
| A．By teaching volunteers repair knowledge. |
| B．By sharing tips on opening repair cafés. |
| C．By providing information to the repair database. |
| D．By offering online and off line help to encourage repairs. |
| A．Jim threw away a used bike. | B．Jackson mended a torn sofa. |
| C．Sue replaced a worn carpet. | D．Windy removed a broken vase. |
Shennongjia is
Between 1976 and 1981, the Chinese Academy of Sciences organized three large-scale
Nowadays, Shennongjia’s attraction is not
The “wild man” legend has been passed on for generations by word-of-mouth. In 2016, the legend of “wild man” in Shennongjia
7 . A lot of manufactured glass today made from sand and sodium carbonate(碳酸钠) can be reused or melted down and recycled into new items, but it doesn’t break down in the environment and will sit in landfills for thousands of years. A team of Chinese scientists aimed to deal with this environmental concern by developing an eco-conscious alternative.
In a study published recently in the journal Science Advances, a team at the Chinese Academy of Sciences’ Institute of Process Engineering describe how they engineered biodegradable glass made from amino acids(氨基酸). That glass would have a smaller impact on the environment and can break down in a few weeks or in several months.
In a test, glass beads(玻璃珠) made out of amino acids were placed under the skin of mice, and the breakdown of the bead and the skin healing process were observed for 30days. A diagram from the study shows how the mice’s bodies broke down the beads. In that month, the glass implant degraded beneath the skin, the wound site healed, and fur grew back. “Throughout the experimental period, no mice exhibited any pain-related behavior that may have been caused by the glass implantation, and none of them experienced obvious weight loss,” the researchers wrote in their paper.
Although amino acids do degrade over time in the environment, this biodegradable glass is not as durable as traditional glass, because amino acids can break down quickly in heat. In order to overcome this hurdle, the researchers chemically modified the amino acids using the heating-cooling procedure applied in glass manufacturing. This is when materials for the glass are heated to become soft and then rapidly cooled so as to make the glass tougher.
“It’s important to point out that this biodegradable glass is currently in the lab stage, and far from large-scale commercialization,” emphasized Yan Xuehai, a professor involved in the study, in a press release.
1. What is an advantage of the new glass?| A．It takes less time to break down. |
| B．It can be recycled at a low cost. |
| C．It is produced without pollution. |
| D．It has a wide range of applications. |
| A．To assess whether the glass is biologically harmless. |
| B．To investigate why amino acids are medically useful. |
| C．To explore how long it takes for the glass to degrade. |
| D．To observe if the glass can be melt down in mice’s stomach. |
| A．The challenge of improving the heating-cooling procedure. |
| B．Environmental problems caused by traditional glass. |
| C．The difficulty of selecting materials for the glass. |
| D．The instability of amino acids. |
| A．Amin o Acids Make Glass Tougher |
| B．Amin o Acids Cast New Light on Science |
| C．Biodegradable Glass: Closer to Sustainability |
| D．Biodegradable Glass: Ready to Hit the Market |
8 . For the past two months, Mandy Chen, a second-year student at Beijing University of Technology, has been posting photos of herself to Taobao, posing with a reusable cup, climbing stairs and switching off lights.
After seven days of posting her photos, Chen exchanged the points for a dozen of biodegradable rubbish bags from Taobao. Everyone can get an endless supply of free trash bags if they keep going, according to Chen.
Chen uses Carbon88, a platform launched last August by Alibaba Group Holding, to help the more than 800 million users on Taobao adopt a sustainable lifestyle. The platform rewards users for over 70 low-carbon behaviours.
| A．It encourages them to reduce their carbon footprint. |
| B．And her efforts to save electricity prevented 65.50 grams. |
| C．It’s a valuable addition to current carbon-reduction policies. |
| D．Carbon reduction has helped increase Chen’s environmental awareness. |
| E．Within minutes, she receives a dozen points from the app as a reward. |
| F．They range from taking public transport to shopping of second-hand items. |
| G．She is now saving points for something better, like snacks and water bottles. |
9 . Raising a litter of teething wolf pups (幼崽) is not easy, but the wolves living in Yellowstone National Park are parenting experts. This spring, the park’s biologists shot a video of adult wolves repeatedly returning to their den (窝) with so-called “toys”—in the form of bones and sticks—to keep their little ones happy between meals.
Once they stop eating their mother’s milk, pups rely on adults to go out, hunt, and then bring back food to the den. But when that’s not possible, the adults instead retrieve odd items for the wolf pups to play with.
“Pups wait for food deliveries from successful hunts, but in the absence of food, adults bring ‘toys’,” the park wrote on Facebook. “The behavior of bringing items back to the den may be enhanced from generation to generation and probably helps keep adults from being surrounded by sharp puppy teeth.”
The adult wolves are part of “Mollie’s Pack”, one of ten known wolf packs living within Yellowstone as of January 2023. This particular pack is named after Mollie Beattie, who in 1993 became the first woman to serve as director of the United States Fish and Wildlife Service.
Beattie, who died in 1996, advocated for the reintroduction of wolves into Yellowstone National Park to help rebalance the ecosystem after the animals were systematically killed within the park Wolf reintroduction was a highly controversial initiative that many people opposed. And yet, Beattie and other wildlife managers ultimately achieved their vision and successfully relocated 41 wolves from western Canada to the park between 1995 and 1997. Today, that number has blossomed to at least 108 wolves living in Yellowstone.
Today, gray wolves are protected under the Endangered Species Act in many states. In late 2020, the administration removed the animals from the endangered list. But in February 2022, they were re-listed as endangered after a judge reversed the decision.
1. What does the underlined word “retrieve” in paragraph 2 probably mean?| A．Hide. | B．Fetch. | C．Decorate. | D．Design. |
| A．Pups of any kind are playful by nature. |
| B．Wolves are intelligent enough to make toys. |
| C．Finding food is becoming harder and harder. |
| D．Wolves’ “toy-delivery” behavior may be more obvious in later generations. |
| A．She helped rebalance the ecosystem in Yellowstone. |
| B．She got involved in drawing up the Endangered Species Act. |
| C．She succeeded in reintroducing 108 wolves to Yellowstone. |
| D．She established the United States Fish and Wildlife Service. |
| A．The reason why gray wolves were considered as endangered again. |
| B．The factors that contribute to the wolves’ behavior. |
| C．People’s response to the Endangered Species Act. |
| D．The change in gray wolves’ population. |
10 . Do you know that every year volunteers collect millions of rubbish on beaches around the world? More and more people are searching for ways to reduce plastic use. A few small changes of your daily habits can quickly lead to less plastic waste.
Choose reusable bags instead of plastic bags.
Take your dinner set with you. It’s helpful to carry a diner set and a cloth napkin in your bag.
Keep reusable bags or boxes nearby. Plastic-free living is easier if your reusable bags or boxes are easy to get, so make sure you keep them in your bag, car, or at your office.
| A．That way, you’ll never have to use a plastic bag while you’re busy. |
| B．Use reusable water bottles. |
| C．If you have to use a straw, try a paper one. |
| D．At the store, try shopping for things without single-use plastic bags. |
| E．A for kanda spoon are small enough and they don’t take up much space. |
