Human activity is
All activities changed the behavior of animals , but the study found
As well as having a profound influence on the animals — like reducing their ability to feed and breed — the changes point to a global restructuring of animal movement
Dr Tim Doherty, a wildlife ecologist at the University of Sydney, said it was already well known that humans
When human
Just as noise pollution negatively impacts human health, it also affects wildlife. It can affect animal communication, their abilities to find food and impact where they live. A recent study published in Biology Letters found that human-created noise is affecting a wide range of animals. Noise pollution is caused by cars, trucks, airplanes, ships, factories, industrial activities and sounds from cities, among others. Researchers found that wildlife in many different land and water ecosystems showed significant responses to human-created noise.
For example, bats use ultrasonic sound waves to get around and to find food. However, noise pollution affects this and causes them to spend more time and energy locating their food source. Shipping lanes in the UK can be deafening to harbor seals, and noises from ships are seriously impacting killer whales ability to find food and avoid potential dangers, according to episode 2 of CBC s Killers: J pod on the brink (边缘). And it’s no secret that many human-created conditions, like noise, are changing the behavior of birds. You may be surprised to learn that plants are also impacted, since pollinators (传粉昆虫) often relocate to quieter areas.
Not unlike the impact of light pollution on insects, noise pollution is causing change. It can change the types of species living in many different ecosystems, which in turn impacts the functions of these areas, according to The Guardian.
The good news is that if noise is reduced or simply turned off, it more or less removes the issue. The impact does not remain in the same way as other forms of pollution, like plastic or chemicals. And efforts are already underway in Canada.
BC Ferries is working to lessen the effects of underwater noise, especially along ferry routes that pass through critical habitats. WCS (Wildlife Conservation Society) Canada is encouraging the federal government to increase protective measures in the Arctic. They’re also working with international colleagues to address the increase of noise in the region as a result of new shipping routes.
While these initiatives demonstrate progress, tightening rules and regulations around noise pollution is an important measure for conserving wildlife in Canada.
1. Why do bats spend more time looking for food?2. What is the influence of noise pollution on ecosystems?
3. Please decide which part is false in the following statement, then underline it and explain why.
Noise pollution affects animals in many ways, and compared with other forms of pollution, noise pollution is harder to deal with.
4. Please give some advice on how to reduce the effects of noise pollution on animals. (In about 40 words)
3 . Time is running out for coral reefs as the climate gets hotter. So scientists are searching the globe for corals that are better at enduring heat, Now, new research shows how those “super corals” can survive: less roommate drama.
Reefs depend on a crucial partnership between the corals and the algae (海藻) that live in the corals’ tissue, The algae make food for the corals using sunlight and in exchange, get a nice spot to live. But when oceans heat up, that relationship goes bad, and the corals kick the algae out, Without their roommates, corals can die, turning a ghostly white, bleached (白化) color.
Still, some corals seem to resist bleaching better than others, A new study shows that those corals depend on algae that are better at tolerating heat. Researchers hope that pinpointing these abilities will help develop new conservation tools to preserve the world’s reefs as temperatures rise. About 1/4 of all marine life rely on coral reefs in some way, along with half 1 billion people around the world also depend on reefs for their food and livelihoods.
“Heat stress can kill a lot of corals really fast,” says Kate Quigley, a research scientist at James Cook University and the Minderoo Foundation in Australia. “I hope that nature does have some mechanisms to get us through the next few years while we get our act together.”
While the hope is that those algae could also aid in reef conservation in the future, researcher Patrick Buerger says it’s likely that it wouldn’t help all coral species. And even the toughest corals can only endure so much. Currently, the world is on track for just under 3degrees Celsius of warming by 2100, a level that would wipe out nearly all coral reefs.
“The action has to be on climate change,” he says. “This is a short-term solution that might buy some time for corals to adapt. But the main focus has to be on climate. There’s not a silver bullet to the problem.”
1. What is the feature of super corals?| A．Sun-loving. | B．Long-living. | C．Good-looking. | D．Heat-bearing. |
| A．Habitat. | B．Food. | C．Sunlight. | D．Friendship. |
| A．The population of marine life. | B．The importance of coral reefs. |
| C．The seriousness of global warming. | D．The living conditions of coral reefs. |
| A．It is useless | B．It is the last hope. | C．It is temporary. | D．It is the silver bullet. |
4 . A worldwide shift from fossil fuel-powered cars to electric vehicles (EV) could significantly reduce the amount of carbon dioxide that humans emit to the atmosphere. But the vehicle electrification can also shift some pollution to communities already suffering under higher economic, health and environmental burdens, researchers warn.
California is seeking to reduce its carbon footprint and has made great increases in the promotion of electric vehicle purchases. One tool the state has launched is the Clean Vehicle Rebate Project, or CVRP, which offers consumers money back for the purchase of new EVs.
Now, an analysis of the CVRP’s impact on the state’s air quality from 2010 to 2021 reveals both good and bad news, researchers report May 3 in PLOS Climate.
The good news is that the CVRP is responsible for reducing the amount of the state’s overall CO2 emissions, reducing them by about 560,000 tons per year on average, says environmental scientist Jaye Mejia-Duwan at the University of California. In 2020, transportation in California produced about 160 million tons of CO2, about 40 percent of the total emitted by the state that year.
The bad news is that the most disadvantaged communities in the state didn’t see the same overall improvement in air quality. Those communities didn’t have the same decreases in CO2 — and in fact saw an increase in one type of air pollution, tiny particulates (颗粒) known as PM2.5. “These particulates are small enough to go deep into the lungs, increasing the risk of cancer, heart problems and cognitive decline,” Mejia-Duwan says.
“Electric vehicles are often referred to as ‘zero-emission vehicles,’ but in fact, they’re only as clean as the underlying electric grid (电网) from which the energy is sourced,” Mejia-Duwan says. EVs tend to be relatively heavy due to their batteries. And “heavier vehicles can produce more particulate matter than equally sized fossil fuel-powered cars, due to brake, tire or road wear,” Mejia-Duwan says.
1. California launched CVRP to ________.| A．save money for consumers | B．encourage the purchase of EVs |
| C．promote selling traditional cars | D．add to the profit of car industry |
| A．The seriousness of CO2 emissions. | B．The increasing popularity of EVs. |
| C．The present situation of environment. | D．The positive effect of CVRP. |
| A．Fuel-powered cars are relatively environment friendly. |
| B．There are more EVs in disadvantaged communities. |
| C．Electric vehicles can reduce the amount of emission. |
| D．Heavier vehicles do less damage to the environment. |
| A．Objective. | B．Supportive. | C．Opposed. | D．Indifferent. |
5 . Farming is destroying the planet, but there could be a much more environmentally friendly way to feed ourselves: using renewable energy to turn carbon dioxide into food. “This is becoming a reality,” says Pasi Vainikka at Solar Foods, a company that is building the first commercial-scale factory that will be able to make food directly from CO2.
There can be no doubt that immediate attention to find greener ways to grow food is required. Conventional agriculture, including organic farming, causes damage to the environment in many ways. It requires a lot of land, leading to habitat loss and deforestation. It is also the source of a third of all greenhouse gas emissions and releases other pollutants. It isn’t very efficient, either. Crops typically transform less than 1 percent of light energy into usable biomass (生物量).
Instead, Solar Foods plans to avoid photosynthesis (光合作用) altogether, and grow bacteria that use hydrogen as their source of energy. At the factory, renewable electricity will be used to split water to produce hydrogen and oxygen. The hydrogen will be added to large containers, where the bacteria grow, along with CO2 and ammonia (氨气). The end result will be a yellow powder called Solein.
Solein is made of bacterial cells and is up to 70 percent protein. It can be used as an ingredient in all kinds of foods. “We are aiming at replacing animal-sourced proteins, which we think have the highest environmental impact,” says Vainikka.
Compared with plant crops, Solein will use 100 times less water per kilogram of protein produced, 20 times less land and emit a fifth as much CO2, according to Solar Foods. There are other benefits, too: factories could be situated anywhere in the world and production won’t be affected by weather conditions.
“With Solar Foods and other companies scaling up their systems, this is truly beginning a new era of agriculture,” says Dorian Leger at Connectomix Bio in Germany. “I think these trends are exciting and will help bend the carbon curve as well as lead to improved global food supply security.”
1. What is the author’s purpose in mentioning conventional agriculture in paragraph 2?| A．To demonstrate its influence on crops. |
| B．To compare different farming methods. |
| C．To provide an example of agricultural types. |
| D．To highlight the urgent need for alternatives. |
| A．Its storage condition. | B．Its production process. |
| C．Its ingredient materials. | D．Its investment potential. |
| A．it is protein-rich |
| B．it is resource-efficient |
| C．its production is weather sensitive |
| D．its production is location-independent |
| A．The prospect of Solein remains to be seen, |
| B．Solein can help achieve global food safely. |
| C．Solein will dominate the agricultural development. |
| D．The use of Solein may help reduce carbon emissions. |
6 . Overlooking the Davis—Gant Varsity Soccer Field, a bed of overturned soil waits for further development. In a few years, this area will become a natural habitat and a playground for animals and residents. This peaceful area didn’t appear naturally, but through planning and action taken by Catlin Gabel’s Tiny Forest project launched by teacher Patrick Walsh.
Forests typically take hundreds of years to mature, with four stages of growth. “Tiny forests flatten out time through the planting of all four layers (层),” Walsh explained. The end result is a fast-growing, native forest in about 20 years. Over 600 plants from 43 species will be planted in the tiny forest, the first one in Oregon.
Walsh was inspired to build a tiny forest after hearing about this idea, which emerged in Japan and has taken hold in North America. He shared his vision with seniors in his class. The seniors researched tiny forests and made a proposal resulting in Clean Water Services donating 60 trees and $5,000 from the National Oceanic and Atmospheric Administration. Armed with these resources, Walsh and the students started working. “Something I didn’t really expect was the outpouring of students’ enthusiasm. Seeing students from all grades volunteered to contribute to the ‘dirty work’ really blew me away,” Walsh said.
Senior Megan Cover has been at the school since the first grade. “I’ll graduate after working on this project, which is surely sad, but it’s really rewarding and great to be a part of this project and to do my bit. We’re creating this educational space for many young kids,” Cover said.
Walsh summed up his goal of the project, which is to build a place where students can enjoy and learn about nature. “The forest will obviously not solve climate change, but it will deserve the efforts if the kids think about climate change and remember the importance of reforestation and trees when they look outside at the forest.”
1. What is special about tiny forests?| A．They originated in North America. | B．They are usually planted in schools. |
| C．They contain various types of trees. | D．They become mature in a shorter time. |
| A．The abundance of native tree species. | B．Public concern about the environment. |
| C．The active participation of students. | D．Support from local organizations. |
| A．Proud. | B．Regretful. | C．Grateful. | D．Disappointed. |
| A．A model. | B．A reminder. | C．A resource. | D．A witness. |
7 . In 2022, campaign group Fashion Revolution Chelsea dye a garden for its Chelsea Flower Show presentation. An ancient craft, natural dyeing is a practice whose time has come again, with hand tie-dyed fashion also making a comeback in recent years.
The revival has been encouraged by Covid lockdowns, “which allowed people to explore the craft at home, says natural-dyeing enthusiast and teacher Susan Dye. It’s unlikely, though, that the practice would have caught on in quite the same way if not for a continually growing discomfort about fashion’s heavy footprint. From carbon emissions to animal cruelty, fashion is under considerable inspection. “Put it this way, 97% of dyes used in the industry are petrochemically (石油化学产品) based,” says sustainable fashion consultant Jackie Andrews, who helped advise the UN Ethical Fashion Initiative. We’ve got net zero targets which mean we’re going to have to remove all those petrochemicals from the manufacturing cycle.
Fashion is a huge polluter. According to the UN Environment Program, the industry is responsible for up to one-fifth of all industrial water pollution—due to the fact that most clothes today are produced in poorer countries where regulation is weak and enforcement weaker. Waste water is dumped directly into rivers and streams, poisoning the land as well as the water sources of people and animals who rely on them.
It’s easy to see why someone who cares about people, planet and animals, as well as clothes, might turn to natural plant dyeing. From the beauty of the raw materials—often wild plants-to the property of only bonding with natural fiber like cotton and linen (亚麻布) from the minor footprint of recycling old clothing that has grayed or faded over time to the vibrant and long-lasting dyeing results, plant dyeing feels like a quiet act of rebellion. This is why, while beginners start with simply changing their clothes’ color, new worlds open. Many of today’s natural dyers grow their own dye plants, run local community workshops, and advocate for change in industrialized fashion systems and beyond.
1. What is the main reason for the growing discomfort mentioned in paragraph 2?| A．The adoption of petrochemical-based dyes |
| B．The disturbing consequences of the fashion industry. |
| C．The fashion industry’s focus on luxurious designs. |
| D．The challenging net zero targets to be achieved. |
| A．By making a comparison. | B．By listing numbers |
| C．By giving examples. | D．By introducing a new topic |
| A．A protest against turning to natural fiber. |
| B．An objection to recycling old clothing |
| C．A resistance to vibrant colors in natural dyeing |
| D．A struggle for a sustainable fashion industry |
| A．The Environmental Impact of Natural Dyeing |
| B．The Return of Natural Dyeing with Ethical Appeal |
| C．Fashion Revolution’s Dye Garden Presentation |
| D．The Petrochemical Dye Industry and Its Challenges |
8 . He may be approaching his 90th birthday, but Sir David Attenborough has no desire to slow down. Fresh from an appearance at the Paris climate change summit, he fronts a new series David Attenborough’s Great Barrier Reef (大堡礁).
“There was a book by Saville-Kent called The Great Barrier Reef with fascinating hand-drawn illustrations which always fascinated me as a child. It was as if born from pure imagination. I thought no such place on earth can surely exist.” he said.
Nearly sixty years after his first visit, Attenborough dives 1000 feet below the surface off the Queensland coast to explore the world’s largest living organism like never before.
“It was the first place I was lucky enough to scuba (水肺) dive and I was, entering those waters, welcomed by magic. It was 1957 and I was shocked by remarkable beauty and life.”
The dive also gives Attenborough the chance to properly examine the effects of climate change and how the rising temperatures and acidity of the seas is causing harm to the reef.
“You can see where the sea grass is going and you know that if it continues on like that for the next decade or so, the coral (珊瑚) won’t be able to tolerate it. You can show experimentally that they’re incapable of living in these higher temperatures and the acidity will be such that they won’t be able to form coral limestone (灰岩) anymore,” he explains.
Attenborough admits that though he is incredibly enthusiastic about spreading awareness of climate change he was unwilling to be referred to as an authority on the subject. “I have a view, but it’s a second-hand view. I haven’t done the chemistry,” he said.
The truth is, he is well respected and beloved. When he talks about something as serious as climate change we are willing to pay attention.
1. What impressed Attenborough in his childhood?| A．The vivid imagination of TV series. | B．Severe pollution on the Great Barrier Reef. |
| C．The importance of climate change summits. | D．Interesting pictures in The Great Barrier Reef. |
| A．Mild temperatures stopped the growth of coral. |
| B．The sea grass posted a potential threat to the coral. |
| C．The acidity sped up the formation of coral limestone. |
| D．Scientists were doing experiments under deep sea water. |
| A．Passionate and frank. | B．Humourous and creative. |
| C．Brilliant and sociable. | D．Competent and generous. |
| A．To set an example for the old. | B．To analyze climate change effects. |
| C．To introduce a famous and admired person. | D．To promote underwater sports. |
9 . For 60-year-old Gao Ruyi, the proudest achievement in his life is not measured in honors or riches but in the wings of over 1, 000 swans he has rescued. Gao, former director of the wildlife rescue station in Sanmenxia, Henan province, has guarded swans and the ecosystems they live in for almost four decades. His efforts have earned him the name “Swan Dad”.
Gao Ruyi grew up near the Yellow River, China’s second-longest river. He had little connection to swans until the winter of 1988 when one day the peacefulness of the riverside was broken by gunshots. Rushing to the scene, he found that someone had opened fire on the swans. The heart-wrenching cries of four wounded swans left a deep-rooted mark on him. Since then, Gao has become a guardian of swans and a witness to the swan protection efforts along the Yellow River.
The endeavor (努力) is not without its challenges.
Gao started working at a wildlife rescue station in the Yellow River wetland in Sanmenxia in 1994. Despite their efforts, illegal activities continued. One such tragedy happened in 1998. Several wild ducks and swans were poisoned. Gao immediately called the police and provided treatment for the feathery victims. “Swans have memories,” he said, “Since the incident, nobody saw swans in the area for many years.”
Still, Gao’s passion for swan protection has never waned. He and many other “swan dads” and “swan moms” often visited nearby villages to educate residents about wildlife conservation, and encouraged them to bring sick or injured wild animals to the rescue station.
Another challenge for the birds came from the environment. Swan populations in Sanmenxia were limited in the 1990s due to severe pollution caused by mining and industrial development, said Gao. In the past decades, however, China started extensive efforts to battle pollution in the Yellow River basin, and gradually, swan populations in the Sanmenxia section began to increase. Tens of thousands of swans are flying back home, marking the start of “swan season”, as the locals affectionately call it.
1. Which of the following can best describe Gao Ruyi?| A．Peace-loving. | B．Good-tempered. | C．Hard-working. | D．Kind-hearted. |
| A．He started a wildlife rescue station. |
| B．He educated people to raise awareness. |
| C．He cured sick or injured wild swans. |
| D．He worked with government to fight pollution. |
| A．Recovered. | B．Expanded. | C．Benefited. | D．Declined. |
| A．Yellow River Birds Saved by “Swan Dad” |
| B．Illegal Activities Done to Swans Continue |
| C．Yellow River Pollution Problems Solved by Government |
| D．“Swan Season” Is Witnessed in Sanmenxia Section of Yellow River |
10 . Dandelion (蒲公英) seeds are some of the best flyers in nature, catching the wind and spreading as far as 100 kilometers. Each dandelion seed is tied by a thin tube to around 100 hairs, which form the parachute-like (类似降落伞的) structure. When seeds break free from the flower head, these hairs catch the wind and carry their seeds. This hairy parachute closes when the air is humid (潮湿的), which often means the wind is weak. In drier and windier conditions, dandelions widen their parachutes to better catch the wind so the seeds can fly freely.
However, in the past, nobody knew how they sense and respond to their environment so effectively.
Now researchers have uncovered the secret “thinking” behind dandelions’ spreading seeds. Their work, published in Nature Communications, found the seed-carrying parachutes open and close using something like actuators — devices that change signals into movement — without using active input of energy. The center of the parachutes senses the humidity of their immediate environment by absorbing water molecules (分子) from the air. Responding to these humidity signals, they either open their parachutes and fly away, or close their parachutes and stay put.
Study author Dr. Naomi Nakayama of the Department of Bioengineering who led the work said that their findings reveal how the dandelion ensures the survival of its species by making perhaps the most important decision in a plant’s life — to stay or go to seek a better habitat.
“Understanding how dandelions work is fascinating because the dandelion is the foundation of ecosystems. It feeds insects and birds,” Nakayama says. “So, the environmental sensitivity of their flight is an important topic for us to understand how nature will change in future climates.”
1. What can be learned from paragraph 1?| A．Dandelion seeds have a tube-like design. |
| B．A dandelion flower consists of 100 hairs. |
| C．Dandelion seeds begin to grow in dry weather. |
| D．The dandelion parachute closes on wet mornings. |
| A．Its hairs catch the wind easily. |
| B．Its actuator needs extra energy to function. |
| C．The middle of its parachute measures humidity. |
| D．The shape of its actuator was changed by the wind. |
| A．To feed more insects and birds. | B．To better learn about climate change. |
| C．To change dandelions’ living environment. | D．To further explain their role in ecosystems. |
| A．Why dandelion seeds “prefer” the wind. |
| B．How dandelions “tell” us their destinations. |
| C．How dandelions “decide” to spread their seeds. |
| D．Why dandelion seeds “create” parachute-like structures. |
