1 . Chinese scientists say they have developed a robotic fish that can remove microplastic particles from water environments. Researchers working on the project say the robots could help to clean up plastic pollution in oceans around the world.
The robotic swimmers are about 1.3 centimeters long. They are made of a soft chemical Compound. The robots are designed to absorb microplastics while moving through the water. The project was launched by a team at Sichuan University in southwestern China. The researchers said the robots have already performed well in shallow water and they plan to carry out more tests in deeper waters. The scientists reported their findings in a new study in Nano Letters. The publication comes from the American Chemical Society, a nonprofit organization supported by the U.S. Congress. The robotic fish were built to target microplastic particles, which are smaller than five millimeters. Studies have confirmed that microplastic pollution has been discovered in many natural environments. The material comes from the breakdown of manufactured plastic products and industrial waste.
The team said the robots can be controlled by light. Turning “a near-infrared light laser” on and off causes the fish’s tail to move back and forth, the American Chemical Society said. The robotic fish can swim up to 2.76 body lengths per second. The researchers said this is faster than most similar soft robots. Wang Yuyan was a member of Sichuan University’s research team. She told Reuters news agency that the small, lightweight robot is currently being used to collect microplastics for research purposes. But Wang added that the team plans to expand that use so the robot fish can remove larger amounts of microplastic waste from deep ocean areas. The fish can take in different kinds of microplastics and even repair itself when damaged, the researchers said. And if a robot fish is accidentally eaten by a real fish, it could safely digest the material, the team added. Wang said similar robots could be developed to be placed inside the human body to remove unwanted materials or disease.
1. Why has a robotic fish been created?| A．To remove disease in people. | B．To clean up pollution in oceans. |
| C．To remove unwanted materials in body. | D．To remove microplastic particles in water. |
| A．It will be harmless. | B．It will repair itself. |
| C．It will take in microplastics. | D．It will collect microplastics. |
| A．The purpose of the robotic fish. |
| B．The function of the robotic fish. |
| C．A further introduction of the robotic fish. |
| D．Potential application of the robotic fish. |
| A．Pessimistic. | B．Positive. | C．Unclear. | D．Suspicious. |
2 . The sunflower sea star has been listed as a critically endangered species following a groundbreaking population study led by Oregon State University (OSU) and The Nature Conservancy.
“These giant sea stars used to be easy to find and were a hit with divers. Unfortunately, your chances of finding one now are next to nothing in most of the areas near the United States—this listing is one step to extinction—and I don’t think they’re coming back without help,” said OSU’s Sarah Gravem, a research associate in the College of Science and the lead author of the study.
Populations of the sunflower sea star suffered dramatic crashes because of a marine (海洋的) wildlife epidemic event, which began in 2013. Scientists used more than 61,000 population surveys from 31 data sets to calculate a 90.6% decline in the sunflower sea stars and estimated that as many as 5.75 billion animals died from the disease, whose cause has not been determined. Moreover, the research showed no sign of population recovery in any region in the five to seven years since the event.
Sunflower sea stars are a key catcher of purple sea urchins (海胆) and the sea star decline has helped the increase in the urchin population in many regions. Too many urchins are linked to a decline in kelp forests（海藻林) already facing pressure from marine heat wave events, making the future uncertain for ecosystems that provide habitat for thousands of marine animals and help support coastal economies.
“Because most people are not out in the ocean every day, we don’t realize how much it’s being changed and impacted by humans. We need to think about how to keep our ocean healthy. While reducing the release of carbon dioxide is the most pressing need, rebuilding key catcher populations, like the sunflower sea star, can be an important piece of the puzzle too,” said study co-author Sara Hamilton, a Ph. D. candidate in the OSU College of Science.
1. What can we infer about sunflower sea stars from Sarah Gravem’s words?| A．They present a danger to divers. |
| B．They cannot recover on their own. |
| C．They cannot adapt to the new environment. |
| D．They attract many tourists to the United States. |
| A．Human beings’ overfishing. |
| B．The arrival of a new species. |
| C．The rising ocean temperature. |
| D．The occurrence of a marine disease. |
| A．Their common enemies are sea urchins. |
| B．Sunflower sea stars feed on the sea keep forests. |
| C．Sunflower sea stars help preserve the sea kelp forests. |
| D．The sea kelp forests provide habitats for sunflower sea stars. |
| A．More species should be introduced to the ocean. |
| B．Scientists play the most important role in protecting the ocean. |
| C．The influence of human activities on the ocean has decreased since 2013. |
| D．More action should be taken to increase the number of sunflower sea stars. |
3 . With greater climate catastrophe (气候突变) on Earth, it is natural for us to make every effort to stop the potential floods, snowstorms, and alarming reports from scientists. For many of us (myself included), part of that means running out to buy reusable straws, organic cleaners, and packaging-free products.
However, before you are delighted at “green” purchases, take a second to consider the results of a new study from Arizona University. By comparing the shopping habits, mental health and environmental impact of young people, the researchers reconfirmed a principle: Buying less beats buying “green” stuff without effort. And that is true whether you are looking at the impact that your purchases have on the Earth or on your own happiness.
It should not come as a shock that simply consuming less is better for the planet. After all, every new item a factory yields requires some resources to produce. Take plastic bag bans for instance. If your city is getting rid of single-use shopping bags, it can be attractive to pay for a fashionable organic cotton bag hanging in the check-out line of your local supermarket. However, experts insist that growing cotton is actually no better for the Earth than producing the conventional plastic bags. Then what is your best bet for carrying your groceries if you care about sustainability? Any bag you already own.
It is not just the Earth that will be happier if you buy less. You will feel more contented too, according to the new study. “People believe that they might well be self-satisfied about becoming environmentally conscious through ‘green’ buying patterns, but it doesn’t seem to be that way”, said the lead researcher Sabrina Helm. “Reduced consumption has effects on increased well-being, but we don’t see that with ‘green’ consumption.”
“Owning every new ‘green’ product on the market might make you feel contented, but if you relieve yourself of that burden of ownership, most people report feeling a lot better,” said Helm.
1. Why does the writer mention “green” shopping habits?| A．To call on a green lifestyle. | B．To praise people’s green efforts. |
| C．To introduce a social trend. | D．To present a half true “green” truth. |
| A．The plastic bag bans are of no effect. | B．Using any bag you have is the best bet. |
| C．Reduced consumption is better for the Earth. | D．Growing cotton is far worse for the Earth. |
| A．The sense of achievement. | B．The sense of happiness. |
| C．The sense of relief. | D．The sense of security. |
| A．Less is More | B．The Greener, The Happier |
| C．Happiness Guarantee | D．What Are Green Products? |
4 . The winter migration (迁徙) season has arrived. With the cold wave heading down south, migratory birds from faraway places such as Siberia have begun to arrive at Dongting Lake, central China for the winter.
Dongting Lake in central China’s Hunan Province is the country’s second-largest freshwater lake. When the temperature rises after a short cold time, locals call the 10th lunar month “Indian summer.” During this time, the lake’s water level drops and sedges (莎草) grow, allowing wintering birds to plentiful food.
Song Yucheng, deputy chief engineer of East Dongting Lake National Nature Reserve, is proud of their protection work. According to him, the Eurasian spoonbills are the first to arrive at the heart of East Dongting Lake National Nature Reserve. They line up and use sideways sweeps of their beaks to filter (过滤) out tiny fish and shrimp. When they fly to another spot looking for food, people can only see the vast expanse of a white sky.
“Now the weather is also very good, the sky is very clear, with green grass, clear water and white spoonbills wandering for hunting. It’s a beautiful picture of nature,” said Song.
For the villagers living in the East Dongting Lake National Nature Reserve, their farm fields are still full of busy and active fellows after harvest because there are about 100 swans settled down there. To provide these birds with an quiet and safe environment, the local government has stopped the vehicles and visitors from entering the area.
“Firecrackers are not allowed, and loud noises are also not allowed in the surrounding area,” said Long Yong, a villager from the Hehua Village, citing the local government.
1. The birds migrate to Dongting Lake not because _____.| A．Siberia is cold at winter. |
| B．It is the nearest to Siberia. |
| C．The protection work there goes great. |
| D．The warm temperature and plentiful food. |
| A．an engineer | B．a kind of bird |
| C．migration destination | D．birds food |
| A．Weather is always good here. |
| B．More birds are coming here. |
| C．The environment is beautiful here. |
| D．It’s good to draw pictures here. |
| A．government measures |
| B．fields harvest |
| C．village life |
| D．how to observe birds in nature |
5 . Wildfire season has begun in many places around the world. The dangerous smoke wildfires produce can spread far and wide. It blocks sunlight, poisons the air and damages the health of people and other living things.
Some of those living things could be the plants in gardens, says gardening expert Jessica Damiano, who writes gardening stories for the Associated Press. Damiano lives in New York City and recently experienced several days of very smoky air. Wildfires in eastern Canada were the source.
Damiano, like other people, limited the time she spent outdoors when the air quality was poor. She also wore a face covering when she had to go outside.
But the plants in her garden had no such escape. They had to breathe the poisoned air through the extremely small holes in their leaves.
Pollutants in smoke landing on plants can block sunlight, which is essential for photosynthesis (光合作用). Reduced photosynthesis results in reduced energy. That means slower growth. Additionally, smoke can also affect a plant’s ability to take in nutrients(营养物质).
Brooke Edmunds, a plant scientist and community horticulturalist with Oregon State University Extension, said plants that are affected by smoke for a short amount of time will usually recover quickly. “It depends on how close they are,” she said. “There could also be a localized effect, where one garden is covered in ash(灰烬), and a half-mile away, there’s nothing because that’s the way the wind was moving things around.”
The best thing home gardeners can do is keep an eye on plants. Edmunds suggests giving plants some extra love and care. “Wash the plants gently to remove pollutants left by smoke. Then give them a long, slow drink of water. Most will pull through,” Edmunds said. However, people should not use leaf blower machines to remove ashes from plants because they will risk breathing in what is blowing around.
1. What happened to Jessica Damiano?| A．She had her house burned in a fire. |
| B．She couldn’t afford face coverings. |
| C．She suffered from health problems. |
| D．She had to deal with poor air quality. |
| A．The bad effects of smoke on plants. |
| B．The benefits of growing plants. |
| C．The role of plants in the environment. |
| D．The importance of water to plants. |
| A．Wind has little effect on plants. |
| B．Plants can sometimes make a quick recovery. |
| C．Ashes can spread more than half a mile. |
| D．Plants close to smoke usually grow well. |
| A．By pulling them out of the ground. |
| B．By using leaf blower machines. |
| C．By washing them with great care. |
| D．By giving them a fast drink of water. |
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7 . In a country where over 80% of residents live in public housing, a government commitment to sustainable urban design could have huge influence. And when it’s a tropical country like Singapore where convenience and air conditioning are a way of life, the impact could be greater still.
Promising 42,000 new homes across five residential districts, the eco-town of Tengah will be the 24th new settlement built by Singapore’s government since World War II. It is, however, the first with centralized cooling, automated trash collection and a car-free town center, with which environment lovers hope to offer a roadmap for reducing carbon emissions in the Southeast Asian city-state.
The development is named as “Forest Town” by officials, due to its abundant greenery and public gardens. Once home to brickmaking factories, and later used for military training, the 2.7-square-mile site has been reclaimed by a forest in recent years. A 328-foot-wide ecological “corridor” will be maintained through its center, providing safe passage to wildlife and connecting a water catchment area on one side to a nature reserve on the other.
The project has proven a new plan for urban planners supporting green design principles and “smart” technology, according to Chong Fook Loong, group director for research and planning at Singapore’s Housing and Development Board, the agency overseeing the country’s public housing. “Tengah is a new start,” he said in a video interview, explaining that roads and parking are being pushed beneath the town center. “We’re going for the ideal concept of separated traffic, with everything underground and then the ground level totally freed up for pedestrians — for people. So, it’s a very safe environment for all.”
“We want a town that allows walking and cycling in a very user-friendly manner,” he added, saying that cycling has “taken off” in Singapore in the “last three to five years especially”. The master plan will see the installation of electric vehicle charging stations.
1. What is special about the 24th new settlement?| A．It can house 42,000 people. | B．It will be well equipped. |
| C．It will be built by the government. | D．It will be environmentally friendly. |
A． |
B． |
C． |
D． |
| A．A parking lot will put in the town center. |
| B．Passers-by and traffic will be in different levels. |
| C．Bikes will be able to fly in the near future. |
| D．All masters will install charging stations. |
| A．Ways to reduce carbon emissions | B．A green roadmap for Singapore |
| C．An eco “smart” city planning | D．A smart electric vehicle technology |
8 . In a county of Britain, a pair of pig farmers has managed to feed one million bees by turning over half of their land to wildflowers. Four years ago, brothers Mark and Paul Hayward decided to fill 81 acres of their farm land with wildflowers. This week, a study found they were feeding one million bees at any time.
“This was our target when we started, to, grow enough flowers to feed a million bees on a single day.” Mark said. “We are acutely aware that bees are under threat from modern farming methods and that East England is one of the worst places where bees are seriously suffering from lack of wildflower diversity,” he continued.
“Every third bite of food you eat can come from bees and we wanted to create an operation on our farm that did not push nature out but rather hugged it-as a central part of our ecology system and our food cycle,” he said.
The farm uses all kinds of seeds which can produce many different wild plants and of course, the bees can get food from different wildflowers.
“We are taking a very small role in helping society restore a balance and this starts with plant diversity to encourage insects, bees, small mammals(哺乳动物), and birds,” said Paul. “At the end of the day, we see ourselves as caretakers of this land. Between us we have six children and we owe it to them to farm sustainability(持续性)and set an example for the generations to come,” added Paul.
According to the Bee Conservation Trust, many types of bees have seen their populations decline by 70%, and two species have become extinct in the last century.
Gill Perkins, CEO of the Bee Conservation Trust said, “Thanks to Mark and Paul, at least here, a million bees can keep living, which is of great significance for ourselves now and future.”
1. What can we know about the brothers from the first two paragraphs?| A．They have about 160 acres of land. |
| B．They grow wild flowers for pigs. |
| C．They are not good at growing wild flowers. |
| D．They have to support 1, 000, 000 bees in their land. |
| A．There is a shortage of water for bees. |
| B．Bees are not used to the modern society. |
| C．There are too many animals eating bees. |
| D．Bees can not find different wild flowers. |
| A．Opposed. | B．Doubtful. |
| C．Supportive. | D．Disappointed. |
| A．The Bees are in Danger Now |
| B．Two Brothers Feed a Million Bees |
| C．Only one Million Bees are Surviving in East England |
| D．Two Brothers Love Wild Flowers in East England |
9 . Carbon dioxide emissions from transportation are now thought as the top source of green-house gases. One of the most effective ways to reduce your carbon footprint is to reconsider how much, and how often, you travel.
Going car free for a year could save about 2. 6 tons of carbon dioxide, according to a study from the University of British Columbia. How can you stop using a car? Try taking a train, bus or better yet, riding a bike.
But let’s be realistic. You will likely need to use a car this year. So, when you do, here are some tips to make your trip more climate-friendly. Driving efficiently can help to reduce emissions. Go easy on the gas and brakes and drive like you have an egg under your foot. Regularly service your car to keep it more efficient. Keeping your tires pumped correctly can re-duce emissions. Low tire pressure will hurt your fuel economy. Air conditioning and frequent city driving can make emissions go up. So cut down on these as often as possible. Use cruise control (定速巡航) on long drives-in most cases, this can help to save gas. Don’t weigh your car down with extra things that you don’t need on your trip.
Fly often? Taking one fewer long round-trip flight could reduce your personal carbon footprint significantly. If you use public transportation often and fly less, your carbon foot-print might still be relatively sustainable, but if you drive and fly a lot, your emissions will be sigher. If you can’t avoid flying, you can offset them by donating money to sustainable proacts, such as supplying efficient stoves to rural homes, or projects which help farmers deal with crop waste environmentally.
1. What does the author think of going car free?| A．Efficient. | B．Costly. | C．Impractical. | D．Reliable. |
| A．Maintaining your car properly. | B．Using cruise control in the city. |
| C．Stepping hard on the gas and brakes. | D．Geiting rid of all the necessary loads. |
| A．Make up for. | B．Team up with. | C．Set foot in. | D．Put up with. |
| A．How to save fuel when driving cars | B．How to reduce your carbon footprint |
| C．Reduce carbon footprint by all means | D．Lower carbon footprint in transportation |
10 . Eradajere Oleita thinks she may have a partial solution to two of our country’s persistent problems: garbage and poverty. It’s called the Chip Bag Project. The 26-year-old student and environmentalist from Detroit is asking a favor of local snack lovers: Rather than toss your empty chip bags into the trash, donate them so she can turn them into sleeping bags for the homeless.
Chip caters drop off their empty bags from Doritos, Lay’s, and other favorites at two locations in Detroit: a print shop and a clothing store, where Oleita and her volunteer helpers collect them. After they sanitize (消毒) the chip bags in soapy hot water, they slice them open, lay them flat, and iron them together. They use padding and liners from old coats to line the insides.
It takes about four hours to sew a sleeping bag, and each takes around 150 to 300 chip bags, depending on whether they’re single-serve or family size. The result is a sleeping bag that is “waterproof, lightweight, and easy to carry around,” Oleita told the Detroit News. Since its start in 2020, the Chip Bag Project has collected more than 800,000 chip bags and, as of last December, created 110 sleeping bags.
Sure, it would be simpler to raise the money to buy new sleeping bags. But that’s only half the goal for Oleita — whose family moved to the United States from Nigeria a decade ago with the hope of attaining a better life — and her fellow volunteers. “We are devoted to making an impact not only socially, but environmentally,” she said.
And, of course, there’s the symbolism of recycling bags that would otherwise land in the trash and using them to help the homeless. It’s a powerful reminder that environmental injustice and poverty often go hand in hand. As Oleita said, “I think it’s time to show connections between all of these issues.”
1. What is the main idea of paragraph 2?| A．How they make the sleeping bags. | B．Why they sanitize the chip bags. |
| C．Where they collect the chip bags. | D．What they use to line the insides. |
| A．The new sleeping bags have many benefits. |
| B．A lot of effort is put into making the sleeping bags. |
| C．People consume a large quantity of chips every day. |
| D．People are aware of the importance of environmental protection. |
| A．They wish they could earn better life. |
| B．They think it is difficult to raise a lot of money. |
| C．They aim to help the homeless by recycling waste. |
| D．They want to find a simpler way to help the homeless. |
| A．Recycling chip bags can remove poverty. |
| B．The new sleeping bags have been put into wide use. |
| C．Few chip bags will end up in the trash in the country. |
| D．Environmental injustice and poverty are usually closely connected. |
