Xixi, located less than five kilometers from the West Lake in the west of Hangzhou, is China’s first national wetland park. The area covers about 10 square kilometers and it
Wetlands themselves are one of the most biologically diverse ecosystems,
Xixi’s native vegetation,
2 . When scientists and the public worry about sea level rise, they mostly focus on when and where communities will be permanently flooded. But there’s another consequence of rising seas that will affect many more people much sooner: getting cut off from roads and other critical infrastructure (基础设施). It’s a threat that society has not paid nearly enough attention to, says Allison Reilly, a civil engineer at the University of Maryland.
In a new paper, Reilly and her colleagues show the width and pace of the isolation (隔离) threat. Inspired by her work on the eastern shore of Maryland, where people already need to adjust their travel and work schedules to account for tides that frequently flood roads, Reilly and her colleagues calculated that, with one meter of sea level rise, twice as many people across the coastal United States will be isolated than will be fully flooded.
Worse still, many places currently considered at low risk of sea level rise suddenly become much riskier when isolation is taken into account, Reilly says. While planners know that low-lying Florida will be severely flooded, Maine, with its high rocky coasts, is generally thought to be at low risk. But Reilly’s work shows many Mainers are in great danger of being cut off by flooding in coastal communities and river valleys.
This far more immediate effect of rising seas needs to become part of the broader planning process. That kind of planning is starting to happen around the Chignecto Isthmus, an interprovincial land bridge in Canada, connecting New Brunswick and Nova Scotia. The New Brunswick and Nova Scotia governments are considering a variety of plans to raise or replace the dikes (坝). For Ollerhead, a Nova Scotian, that work can’t start soon enough. “It will take a lot of sea level rise before Nova Scotia becomes an island, but you could have a storm that cuts off the major transportation links for days, weeks, or months,” he says. “It’s nearly impossible to predict when, but it will happen eventually.”
1. What is the threat Allison Reilly mentioned in paragraph 1?| A．The rising sea level. | B．Flood-related isolation. |
| C．Permanent flooded areas. | D．Irreparable infrastructure. |
| A．Conclusions of a new paper. | B．Calculations of collected data. |
| C．Situations of Eastern Maryland. | D．Influences on coastal United States. |
| A．To clarify a point. | B．To offer a solution. |
| C．To present an assumption. | D．To illustrate a reason. |
| A．Dismissive. | B．Doubtful. | C．Favorable. | D．Unclear. |
1. What is the campaign’s main goal?
| A．To encourage people to reduce garbage. |
| B．To ask people to protect the environment. |
| C．To warn people of the bad effects of cars. |
| A．Planting trees. | B．Painting posters. | C．Collecting garbage. |
| A．Hang posters. | B．Stop driving cars. | C．Decorate classrooms. |
| A．Impractical. | B．Confusing. | C．Wonderful. |
4 . Forest & Bird, a conservation organization in New Zealand, held a contest for Bird of the Century and invited people in the country and abroad to
To get
“The püteketeke are fantastic couples and
His effort
According to Forest & Bird, there are fewer than 3,000 of the bird across New Zealand a few decades ago. But the
Usually called Bird of the Year, the annual
| A．meet | B．select | C．protect | D．feed |
| A．asked | B．informed | C．challenged | D．reminded |
| A．bone | B．meat | C．feather | D．skin |
| A．protested | B．disappeared | C．developed | D．agreed |
| A．support | B．space | C．resource | D．pressure |
| A．ugly | B．unique | C．red | D．thin |
| A．annoying | B．rich | C．caring | D．clever |
| A．fell apart | B．went on | C．gave away | D．paid off |
| A．lake | B．list | C．bottle | D．tree |
| A．hosted | B．missed | C．won | D．joined |
| A．famous | B．intelligent | C．disappointed | D．ordinary |
| A．variety | B．value | C．chance | D．number |
| A．party | B．ceremony | C．event | D．festival |
| A．birds | B．flowers | C．crops | D．people |
| A．delayed | B．100th | C．forgotten | D．first |
5 . 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. |
6 . 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. |
7 . 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 |
8 . 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
10 . 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 |
