1 . Off Australia’s northern coast, the remains of ancient coral reefs (珊瑚礁) form the bedrock of wooded islands, which are home to diverse animals and plants, including mangrove (红树林) forests that blanket their coasts and serve as vital habitats and carbon storers. A recent survey shows that expanding seas might have led to a massive mangrove increase, researchers report November 1 in Proceedings of the Royal Society B.
Mangroves absorb carbon dioxide and store it as “blue carbon”, a term for carbon that is hidden away in ocean environments. “There’s a lot of interest in using mangrove blue carbon to lessen climate change,” says Kerrylee Rogers, an environmental scientist at the University of Wollongong in Australia. But there remain a lot of questions around their capacity to adapt to sea level rise.
In 2021,a team led by Wollongong environmental scientist Sarah Hamylton visited the Howick Islands to do a related research. They walked through the seawater to assess the plant diversity and measure individual trees. Using the measured widths and heights of several mangroves, the team calculated tree widths for the rest of the forest from the data to estimate the total mangrove quantity. The islands host nearly 54,000 metric tons of mangroves, the team estimates, which is roughly 10,000 more metric tons than there was in 1973.
The Howick Islands are uniquely suited to supporting mangroves as the ocean rises. At the end of the Last Glacial Maximum, around 12,000 years ago, water levels rose around northern Australia, and coral reefs grew upward to fill the space that had opened for them.
When sea levels fell thousands of years later, the exposed reefs became sediment (沉积物). With sea levels now rising again, the mixture of saltwater and sediment makes a perfect home for the salt-tolerant mangroves.
Rogers and Hamylton are now working on a bigger effort to study mangoves around Australia. “If we’re going to invest in mangroves to provide us blue carbon and to protect shorelines, we need to understand how dynamic they are,” Rogers says.
1. What can be known about blue carbon?| A．It is produced by ocean water. | B．It is massively present in the air. |
| C．It is friendly environment. | D．It is nutritious for mangroves. |
| A．To measure the size of mangroves. |
| B．To figure out where to plant mangroves. |
| C．To confirm whether local natural environment is polluted. |
| D．To see how the mangroves respond to sea level rise. |
| A．The diversity of ocean life. |
| B．The increase of coral reefs. |
| C．The combination of salt water and sediment. |
| D．The formation of the bedrock of wooded islands. |
| A．Climate Change Causes Sea Level Rise |
| B．Sea Level Rise Helps Mangroves Boost |
| C．Environment on Australia Islands Is Improving |
| D．Climate Warming Poses Dangers To Mangroves |
2 . The ocean is home to more than 200,000 known species and as many as 2 million that we have yet to discover. And, it is also home to 24.4 trillion pieces of microplastics. In 2022, researchers spotlighted how bad marine microplastic pollution, is getting: The total amount of microplastics on the bottom of oceans has greatly increased. in the past two decades.
Microplastic particles don’t just end up at the bottom of the ocean. Animals are eating them — at least 1,500 species have been reported to ingest plastic. And a lot of it. For example, whales in New Zealand’s Hauraki Gulf consume roughly three million microplastics daily, according to research published in Science of the Total Environment, which analyzed whale waste to see how much microplastics were present.
“Other research has shown that if plastics are small enough, they can cross the gut(肠道) wall and get into internal organs though the long-term effects are still unclear. Plastics can also release chemicals that are harmful to digestive system,” says Kahane-Rapport. “This is concerning, and while we do not yet understand the long-term health-effects, it is likely not a good sign for whales and their prey(猎物) to eat a man-made material like plastic.”
This is obviously bad for whales, but it also has effects on humans and the ocean at large. We are also part of these food chains and are consuming microplastics regularly. They are in our bottled water, in our table salt — they are even in our house dust and in the air we breathe. And we still don’t know what the health effects are. Meanwhile, the impact on whales — and what it indicates — is troubling on many fronts. “Whales are ecosystem engineers,” says Kahane-Rapport. “They can spread the nutrients that they consumed and serve as ecosystem guards — when whales are not healthy, other parts of the system will suffer.”
Kahane-Rapport says more research is needed. “The next research step will be to determine how much plastic the whales excrete(排出) and how much is left in their bodies. Following that, we would be able to determine the direct health effects on their tissues.”
1. What does the underlined word “ingest” in paragraph 2 probably mean?| A．Deal with. | B．Bring up. | C．Take in. | D．Spread out. |
| A．Researches show contradictory results. |
| B．Digestive system is the most affected part. |
| C．Small plastics are more harmful than big ones. |
| D．Much about microplastics’ harm remains unclear. |
| A．The various sources of pollution. |
| B．Tab chain reaction of microplastics. |
| C．Possible solutions to plastic pollution. |
| D．Growing awareness of ocean protection |
| A．Microplastic pollution to the ocean bottom |
| B．The sufferings of other ocean creatures. |
| C．Whales’ contributions to the ecosystem. |
| D．The amount of plastic in whales bodies. |
3 . The Amazon
The Amazon River, the basin of which covers 2.3 million square miles, is incredibly biodiverse with over 30,000 species of plants and 1,800 species of birds. It plays an important role in adjusting the climate in North and South America. The River and its forests are threatened by human activity, primary pollution and rapid resource depletion (损耗). The Office of the American States Department of Sustainable Development is working to manage the threats.
The Mississippi
The Mississippi rises in western Minnesota and flows south for 2,530 miles into the Gulf of Mexico. Millions of people in over 50 cities use water from the Mississippi, and the river is also used for shipping and agriculture. Hundreds of animal species, including 60% of North America’s birds, call the area around the Mississippi River home, but river pollution and shoreline habitat destruction threaten to displace them. Fortunately, many projects and organizations are devoted to its conservation.
The Danube
The Danube River begins in western Germany, flowing over 1,775 miles into the Black Sea. It spans 19 countries. The Danube features a richly diverse ecosystem, hosting 55 different species of fish. Cities across Europe use the Danube for power generation and agriculture, and there are more than 700 dams in total. Unfortunately, this river is overfished and heavily polluted. The International Commission for the Protection of the Danube River was established in 1998 to manage its conservation.
The Mekong
The Mekong River is a necessary part of Southeast Asia’s landscape, culture, and economy. Also called the Lancang River, it starts in China, stretching over 2,850 miles through Burma, Laos, Thailand, Cambodia, and Vietnam. Its basin provides more than 65 million people with food, drinking water, power, and transportation. Dams and power plants are harming Mekong’s ecosystems. Organizations such as Conservation International are working to protect the river by advocating for its sustainable development.
1. Birds are affected most around________.| A．The Amazon | B．The Mississippi | C．The Danube | D．The Mekong |
| A．70. | B．65. | C．55. | D．50. |
| A．They contribute to power production. |
| B．They How through multiple countries. |
| C．They are troubled by dam constructions. |
| D．They are under protection of organizations. |
One night, sitting on the cold steps at the back of my apartment in Kansas, I’d been staring out into the darkness. The only light came from my cigarette. Rain soaked (浸湿) through my pants, but I didn’t care. Back in my room, there was a knife on the bedside table and a note on my computer screen. I hoped that whoever read it first would understand why I had the plan to end it all.
Six months before that night, a car accident caused a brain injury in me. I lost my job and had to live on my savings in my lonely apartment. Since then, I had been suffering from depression and struggling to get through each day.
I sat there on those cold steps just wanting to end it all. “Tonight. I will,” I thought as I took another drag of my cigarette.
“Meow?”
I looked up. A black and white cat with round green eyes looked back at me. He meowed again. Then, walking out from his hiding spot, he jumped at me. He was tiny and damp, but he rubbed up against my legs. When I reached down to pet him, he leaned into my touch, purring (发出呼噜声).
That was all it took. I cried. The cat just watched me. I didn’t scare him away. In fact, he stood there as if he knew how desperately I needed a companion right at that very moment.
I looked into his big green eyes and he looked back. Clearly a stray (流浪的) cat. “When was the last time you ate?” I said. My plan to end it all was put on hold, at least until I found this cat some food.
It became a routine: Every day, I’d go to the back steps with some cat food. Usually, the cat, whom I named Scout, was already waiting for me. He became more than something to live for. Over time he inspired me to get help for my depression and even gave me the confidence to get into a serious relationship with Becky in Pittsburgh, whom I had known for years.
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。
Scout became my constant companion.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________I was far from the lonely and depressed man that Scout had first approached in the rain, but I still needed to make a few more changes.
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________5 . Plastic, once seen as a revolutionary material for its wide application and convenience, has become a global environmental crisis because it is non-biodegradable. The ubiquity (无处不在) of plastic in our daily lives has led to an increasing amount of plastic waste, causing great harm.
One of the most alarming examples of this crisis is the Great Pacific Garbage Patch, a floating mass of plastic waste in the North Pacific Ocean. It is estimated to be twice the size of Texas and consists of everything from microplastics to abandoned fishing nets. Marine life often mistakes plastic particles for food, leading to ingestion and death. Additionally, the chemicals used in plastic production can pollute water and soil, and finally threaten marine ecosystems.
Plastic waste is not limited to the oceans; it also impacts the land. Landfills overflow with plastic waste, emitting (排放) harmful greenhouse gases as plastics break down slowly over time. The production of plastics is highly energy-intensive and contributes to greenhouse gas emissions, exacerbating climate change. Furthermore, plastic litter is evident in urban and rural landscapes, destroying the natural beauty of our planet.
Beyond its environmental impact, plastic poses serious health risks to humans. Many plastics contain harmful chemicals, which can be found in food and drinks when plastic containers are used for storage and heating. These chemicals have been linked to a range of health problems, including developmental issues and cancer.
In conclusion, the problem of plastic pollution demands urgent action. A comprehensive strategy for cutting down on plastic is essential to tackle these challenges and safeguard the well-being of our planet and its inhabitants.
While reducing the consumption of plastic may seem challenging, it is achievable through a combination of policy measures, technological innovations and changes in consumer behavior. Governments must issue laws to ban or heavily regulate single-use plastics and promote alternatives. Businesses should adopt sustainable packaging practices, and individuals can reduce plastic consumption by making conscious choices.
1. What does the example of the Great Pacific Garbage Patch show?| A．Animals rely on plastic waste to survive. |
| B．Plastic is too widespread to remove. |
| C．Plastic waste is harming the oceans. |
| D．Plastic poses health risks to humans. |
| A．Worsening. | B．Controlling. | C．Recording. | D．Evaluating. |
| A．Ways to cut plastic consumption. |
| B．Problems of handling plastic. |
| C．Alternatives for plastic products. |
| D．Some benefits of banning plastic. |
| A．Plastic Packaging Is Everywhere |
| B．Plastic Consumption Should Be Reduced |
| C．How Should Plastic Be Used |
| D．How Plastic Products Affect People |
6 . Shop Sustainably
If you have to name one thing that contributes most to your ecological footprints, you may say the energy you use at home, or your car’s emissions.
●
●Avoid unnecessary packing. Buy loose fruit and vegetables instead of pre-packaged produce, and avoid products that contain multiple single packages or double packaging, like grain in a box and a bag. Consider switching from tea bags and coffee pods to tea leaves and ground coffee.
●Go organic when you can. In addition to the benefit organic farming has to insect biodiversity, it’s also considered more sustainable and better for the environment.
●Buy seasonal and native products.
| A．Take reusable grocery bags. |
| B．Select single-use plastic bags. |
| C．It supports local farmers and food producers. |
| D．You can also refill your own containers with loose-packed food. |
| E．When buying organic products, look for those officially certified. |
| F．But it’s what we eat that accounts for up to 60% of our personal demand. |
| G．You’ll find it convenient whenever you buy tea or coffee in the supermarket. |
7 . Manatees — often called sea cows — are an anomaly in the animal kingdom. Neither predator nor prey, these peaceable creatures, which can grow to 13 feet and weigh more than 2,000 pounds, are evolutionarily devoid of aggression. Crystal River — “Manatee Capital of the World” — is the epicenter of their presence and recovery.
Yet despite some gains, manatees still face grave threats. Three-quarters of Florida’s 22 million people live along the coast, many in prime manatee habitat, where the strain of human-presence has degraded the state’s enchanted springs, waterways, and wetlands. In Indian River Lagoon, for example, an important manatee habitat along Florida’s densely populated east coast, decades of human waste, sediment from real estate development, and fertilizers from lawns and farms have clouded the water. That has killed seagrass, manatees’ main food source there. More than a thousand manatees have died in the lagoon during the past two years.
What people don’t understand is the need to help support them in waterways. That means restoring seagrass beds and freshwater aquatic vegetation, the basis of their existence and of the overall health of Florida’s waters. Steps to reverse the damage started small. Neighbors gathered with rakes, scooping up algae by hand. Ironically, it was Save Crystal River — the group environmentalists had opposed during their fight over the manatee’s endangered status — that spearheaded the restoration of aquatic vegetation. With funding from the state government, Save Crystal River hired Sea& Shoreline, an aquatic restoration firm, to remove the waste and replant the river bottom with eelgrass, which grows long, ribbon like leaves.
While the prospect of replanting the entire river was daunting, after vacuuming more than 300 million pounds of detritus and planting some 350,000 individual eelgrass pods by hand, the groups have flipped the river back to an ecosystem no longer dominated by algae.
Instead of spending the few short winter months in Crystal River before heading back out into the Gulf of Mexico to graze, some manatees now linger here year-round, enjoying fat times. Aerial surveys from January 2022 revealed the highest number of manatees ever recorded in these waters — more than a thousand in Kings Bay alone.
1. What is a feature of manatees?| A．They are gentle animals. | B．They feed on small creatures. |
| C．They are slightly aggressive. | D．They look cute for their shape. |
| A．Climate change. | B．Habitat loss. |
| C．Low food supply. | D．Human activities. |
| A．By removing wastes from the river. |
| B．By raising funds from the government. |
| C．By replanting algae in the river bottom. |
| D．By refining manatees’ living surroundings. |
| A．They enjoy the cold winter of Mexico. |
| B．They remain in Manatee Capital for long. |
| C．They head towards the warmer waters during winter. |
| D．They have the largest population ever recorded globally. |
8 . On August 15,a team of researchers and conservationists set off on a two-year voyage from Plymouth, England,on board the Dutch tall ship Oosterschelde. They will sail more than 46,000 miles(74,000 kilometers)and drop anchor in 32 different ports across four continents,before ending their journey in Falmouth,U.K.
The expedition, named Darwin200,comes more than 190 years after Charles Darwin sailed the globe collecting specimens and shaping ideas of his theory of evolution. The team will closely follow Darwin’s original voyage aboard the HMS Beagle, which set off on Dec.27,1831,and returned to England on Oct.2,1836.
Darwin was 22 years old when he joined the expedition with the intention of seeing the world before joining the church. But during the trip, Darwin became fascinated by the wide range of different species he encountered, which eventually led to him creating his theory of evolution by natural selection. Darwin’s account of the journey, published after his return, also helped him establish his reputation as one of Victorian Britain’s academic elite.
The main aim of the new expedition is to train and inspire 200 young environmentalists, between 18 and 25 years old, who will each spend a week on board the Oosterschelde studying threatened species that Darwin encountered on his voyage.
“We wanted to create a similarly transformative experience(for the young naturalists),”Stewart MePherson, mission director of Darwin200,said in a statement. They have” the potential to be the STEM (science, technology, engineering, and mathematics)and conservation leaders of tomorrow,” he added.
Every week, the team will broadcast interactive “nature hour” sessions live from the ship for people across the world. They will also collect important data on ocean plastics and coral reef health,as well as survey seabirds, whales and dolphins.
1. What can we learn about Darwin200 from the first two paragraphs?| A．It takes along 200 naturalists. | B．It takes a shortcut for the journey. |
| C．It is to mark Darwin’s Beagle voyage. | D．It lasts longer than Darwin’s voyage. |
| A．It established his writing style. | B．He gained a sense of adventure. |
| C．He earned great fame and fortune | D．It changed the direction of his life. |
| A．To be more creative. | B．To keep an open mind. |
| C．To develop scientific skills. | D．To challenge Darwin’s theory. |
| A．Ocean conservation. | B．The exploration of ocean. |
| C．The art of navigation. | D．Scientific education. |
In downtown Xiamen, Fujian Province, a 6-meter-high mound(土堆) that stretches for 60 to 70 meters stands in contrast to the high-rise
The blue-tailed bee-eater, or Merops philippinus, is known for its colorful plumage and on the Chinese mainland it
In recent years, with improved environmental conditions in Xiamen and the city government’s commitment
In 2015, the center
The birds,
The 13-year experience of preserving blue-tailed bee-eaters has given the center a grasp of their habits and made the Wuyuanwan Nature Reserve a stable home for them.
10 . Like many of the Indigenous (土著的) communities across the Australian continent, the remote communities in north-west New South Wales are struggling. Many of the 300 or so residents rely on welfare. Higher electricity bills—up to $3,000 a quarter for some households—further worsen the poverty. They’re always at the end of the power line, so the service that is there is quite extraordinary in terms of cost. It’s a real problem that needs to be fixed.
To that end, Anderson and other Indigenous leaders have formed the First Nations Renewable Energy Alliance (FREA) to push for renewable energy in Indigenous communities. They partner with private enterprise to support Indigenous communities looking to switch to renewable energy.
“We can build a power station where the community exists,” Anderson says, “so people are able to successfully live in the environment the way they want to live and have access to power which enables them to better determine their economic future.”
Only a handful of Indigenous communities have set up renewable energy projects in Australia. The Indigenous-owned and -operated company AllGrid Energy, for instance, has installed solar panels and battery storage systems to replace diesel (柴油) generators in the communities of Ngurrara and Kurnturlpara in the Northern Territory’s Barkly Tableland. Within two months of the system being installed in May 2016, people were moving back to their homelands, the communities growing from just two permanent residents to about 40.
But FREA will go one step further, working with community leaders and acting as a conduit (纽带) between the communities and the businesses they are dealing with. This is essential, says Anderson, to avoid predatory (吞并) practices they have seen in the past, with companies “playing on the psychology of poverty” to gain advantage. The FREA has drafted terms of agreements that will guide how companies engage with Indigenous communities for renewable energy projects.
One of the next steps for FREA will be to identify a community that can act as a test case for a renewables project. “Our experience is that if we can make it work for one community, it will work in every other community,” Anderson says.
1. What is FREA expected to do for the remote Indigenous communities?| A．Increase power supply to them. | B．Help them return to their homelands. |
| C．Shake them off poverty. | D．Reduce their higher power costs. |
| A．Renewables projects are inaccessible. |
| B．Renewables projects are quite workable. |
| C．Renewables projects can increase locals’ income. |
| D．Renewables projects can coexist with diesel power plants. |
| A．Its strategies to win over the businesses. | B．Its cooperation with community leaders. |
| C．Its potential conflict with energy companies. | D．Its innovation in directing renewables projects. |
| A．Consult the experts. | B．Select a piloting community. |
| C．Collect sufficient construction fund. | D．Make renewables projects available to all. |
