1 . A new study describes a surprising number of coastal marine invertebrate (无脊椎动物) species thriving in floating communities in deep ocean waters. What's their secret? They are colonizing ever-expanding rafts of plastic debris.
The study was led by researchers from the Smithsonian Environmental Research Center (SERC) and the University of Hawaii (UH) at Mānoa. They found a diverse range of taxonomic groups of coastal species in the eastern North Pacific Subtropical Gyre (北太平洋副热带流涡区) on over 70 percent of the plastic debris they examined. Not only that, but the debris carried more coastal species than open ocean species. “This discovery suggests that past biogeographical boundaries among marine ecosystems-established for millions of years-are rapidly changing due to floating plastic pollution accumulating in the subtropical gyres,” said lead author Linsey Haram, research associate at SERC.
These floating communities, or “neopelagic (新远洋的) communities” , in deep oceanwaters were only recently discovered by scientists. The researchers looked at 105 plastic samples collected by The Ocean Cleanup during their 2018 and 2019 expeditions in the North Pacific Subtropical Gyre, which occupies most of the northern Pacific Ocean. “We were extremely astonished to find 37 different invertebrate species that normally live in coastal waters, over triple the number of species we found that live in open waters, not only surviving on the plastic but also reproducing. Our results suggest coastal organisms now are able to reproduce, grow, and persist in the open ocean---creating a novel community that did not previously exist, being sustained by the vast and expanding sea of plastic debris," said Haram.
This phenomenon will take a heavy toll on marine ecosystems. “The Hawaiian Islands are neighbored in the northeast by the North Pacific garbage patch. Debris that breaks off from this patch constitutes the majority of debris arriving on Hawaiian beaches and reefs,” said Nikolai Maximenko, senior researcher of the UH. “In the past, the fragile marine ecosystems of the islands were protected by the very long distances from coastal communities of Asia and North America,” Maximenko adds. “The presence of coastal species persisting in the North Pacific Subtropical Gyre near Hawaii is a game changer that indicates that the islands are at an increased risk of colonization by invasive species.”
1. What transformed the oceanic biogeographical boundaries?| A．The accumulation of plastic rafts. |
| B．The plate movement of the sea floor. |
| C．The shift of ocean currents. |
| D．The pollution of coastal waters. |
| A．more invertebrate species lived in coastal waters than ever before |
| B．the North Pacific garbage patch was continuously expanding |
| C．coastal invertebrate species thrived on plastic debris |
| D．various open-ocean species had gathered along the coastline |
| A．Tolerant. | B．Concerned. | C．Optimistic. | D．Ambiguous. |
| A．Effects of Plastic on Biodiversity of Deep Ocean Waters |
| B．Competition Between Coastal and Open-ocean Species |
| C．Methods for Being Rid of the Sea of Plastic Pollution |
| D．Unexpected Species' Colonization on Plastic Rafts at Sea |
2 . Many news reports focus on climate change these days. Extreme heat, wildfires, floods, homeless polar bears... How do you feel when reading worrying news about climate change? You may believe that people are becoming insensitive to the warming planet, accepting that it is only getting worse.
A research team at Pennsylvania State University, US, reported otherwise. To record how the news can impact people’s emotions, participants were first exposed to negative news stories about climate change for three days. They then continued to read negative news headlines for seven days. In the first three days, the participants experienced greater fear and less hope, which can potentially hurt an audience’s belief that they can do anything to tackle the problem.
However, during the seven-day-long exposure, the fear peaked and then held steady (稳定的). “We saw the opposite pattern in our second study. The more exposure people had to these threatening news stories each day, the more likely they are to think that they can make a difference in tackling climate change,” Christofer Skurka, the paper’s lead author told the Pennsylvania State University website.
According to the researchers, one possibility is that when the public hears about climate change threats, they may convince themselves that they have control over the situation. They will then believe that their actions may make a difference.
Knowing that everyone is able to help is only the first step. According to a study that analyzed information from 430 different studies, what motivates people the most to change their behavior is social comparison. For example, if a person’s neighbors follow a low-carbon lifestyle, such as driving electric cars, the person may feel social pressure and become more likely to follow this behavior. This happens because people usually judge their own behavior and follow social norms (规范). Another effective motivation is providing financial rewards to consumers, helping them save money.
“There are so many routes to our goals,” Matthew Goldberg, the co-author of the study, told Scientific American. As Goldberg pointed out, future research like this can help policymakers decide how best to encourage people to ward more climate-friendly habits.
1. How did the participants react to negative news in the second study?| A．They found the news unbelievable. |
| B．They lost hope in tackling climate change. |
| C．They experienced greater fear for the future. |
| D．They felt a strong sense of social responsibility. |
| A．Effective policy. | B．Healthy lifestyle. |
| C．Social influence. | D．Financial support. |
| A．Responses to climate change education. |
| B．T he effectiveness of community initiatives. |
| C．T he impact of social norms on environment. |
| D．Ways to encourage climate-friendly behavior. |
| A．Doubtful. | B．Optimistic. | C．Objective. | D．Indifferent. |
3 . On Christmas Eve, a team of reindeer (驯鹿) will help Santa Claus deliver gifts to children all around the world. The reindeer, led by their fearless leader Rudolph, won’t be the only ones doing something special. Back in the highest Arctic, their cousins have a remarkable ability changing their eye color.
During the summer months, when the days are long and the sun is bright, reindeer’s tapetum lucidum (荧光膜), a mirror-like layer at the back of their eye, appears golden, which helps bounce the majority of light off the eyes, effectively acting like a pair of natural sunglasses. As winter comes, and the days become shorter and darker, the tapetum lucidum turns blue to absorb more light, allowing reindeer to improve their night vision and see clear in low light conditions.
With these adaptations, reindeer can adapt and thrive in one of the harshest environments on Earth. Unlike humans, reindeer can see well into the shorter Ultra Violet (UV) range. This UV vision enables them to spot food and predators more effectively in the snowy landscape. Lichens, a key part of their winter diet, absorb UV, so they show up dark against UV-reflecting white snow. Wolf and polar bear fur also absorb UV, so instead of disappearing against snow they pop out in high contrast, allowing reindeer to spot potential threats from a distance.
Reindeer change their eyes by adjusting their tapetum lucidum, which is made of collagen fibers. In winter, the collagen fibers become packed tighter, causing the tapetum lucidum to mainly reflect blue light. This change happens when reindeer dilate their pupils (瞳孔). In summer, the reindeer’s pupils return to a smaller size, which helps reindeer reduce the amount of light entering the eye.
But their unique adaptation may hurt them. Today, the increasing use of artificial lighting, especially during the winter months, poses a potential threat to their sensitive eyes. It can make reindeer lose their way, affecting their ability to survive in their challenging environment. So it is crucial for us to be mindful of our use of electricity and make efforts to minimize light pollution to ensure the well-being and survival of these magnificent creatures.
1. What do we know from paragraph 2?| A．The shape of reindeer’s eyes varies with seasons. |
| B．It is difficult for reindeer to live in low light conditions. |
| C．The tapetum lucidum helps reindeer adapt to seasonal changes. |
| D．Reindeer’s eyes appear golden in winter while blue in summer. |
| A．To help them see clear in dark nights. |
| B．To distinguish food of different colors quickly. |
| C．To protect their eyes from harsh sunlight in summer. |
| D．To better locate food and enemies during snowy days. |
| A．Relax. | B．Expand. | C．Narrow. | D．Hide. |
| A．To call on people to protect reindeer from light pollution. |
| B．To show the reasons for the decline in reindeer population. |
| C．To present humans’ great efforts to reduce artificial lighting. |
| D．To prove reindeer’s strong adaptability to harsh environments. |
4 . The Yurok people have lived along the Klamath River, which flows from the Cascades in Oregon southwest through Northern California, for thousands of years, protecting the region and river from which they — and others — draw sustenance (生计).
But as development and pollution continue to reduce the number of fish in the river and the quantity and quality of its waters, the Yurok Tribe is legalizing (合法化) the tribe’s longstanding care by granting the Rights of Personhood to the Klamath, the first river in North America to have such rights declared.
......
What is paragraph 2 mainly about?| A．The process of legalization. | B．The tradition of Yurok tribe. |
| C．The reason behind the legalization. | D．The importance of the Klamath River. |
5 .
| A．The harm done by single-use plastics. |
| B．The topic for the woman’s composition. |
| C．Environmental issues. |
| D．Some recent hot news. |
| A．Staying home. | B．Enjoying fresh air. | C．Reducing air pollution. |
Though many foreign experts said Japan’s water discharge would have a slight impact
In South Korea, fierce domestic political
1. What does the passage mainly tell us?
| A．Inequality still exist globally. | B．Pollution is severe in wealthy countries. |
| C．The rich pollute the world more. | D．Governments are responsible for pollution. |
| A．52%. | B．8.5%. | C．10%. | D．15%. |
| A．By expecting a positive return from companies. |
| B．By greenlighting companies’ business practices. |
| C．By facilitating more investment in the stock market. |
| D．By forcing companies to stop using traditional fuels. |
9 . In the endless sky, the unaided human eye should be able to perceive several thousand stars on a clear, dark night. Unfortunately, growing light pollution has impeded people from the nightly view.
New citizen-science-based research throws alarming light on the problem of “sky glow”-the diffuse illumination (漫射照明) of the night sky that is a form of light pollution. The data came from crowd-sourced observations collected from around the world as part of Globe at Night, a program developed by astronomer Connie Walker.
Light pollution has harmful effects on the practice of astronomy but also on human health and wildlife, since it disturbs the cycle from sunlight to starlight that biological systems have evolved alongside. Furthermore, the loss of visible stars is a great loss of human cultural heritage. Until relatively recently, humans throughout history had an impressive view of the starry night sky, and the effect of this nighty spectacle (壮观) is evident in ancient cultures.
Globe at Night has been gathering data on star visibility since 2006. Anyone can submit observations through the Globe at Night web application. Participants record which one best matches what they can see in the sky without any telescopes or other instruments.
Researchers find that the loss of visible stars indicates an increase in sky brightness of 9.6% per year while roughly 2% is measured by satellites. Existing satellites are not well suited to measuring sky glow as it appears to humans, because they can not detect wavelengths shorter than 500 nanometers (纳米). White LEDs, with shorter wavelengths under 500 nanometers, now are increasingly commonly used in outdoor lighting. But human eyes are more sensitive to these shorter wavelengths at nighttime. Space-based instruments do not measure light from windows, either. But these sources are significant contributors to sky glow us seen from the ground.
“The increase in sky glow over the past decade underlines the importance of redoubling our efforts and developing new strategies to protect dark skies,” said Walker. “The Globe at Night dataset is necessary in our ongoing evaluation of changes in sky glow, and we encourage whoever can to get involved to help protect the starry night sky.”
1. What does the underlined word “impeded” in the first paragraph mean?| A．separated. | B．disabled. | C．demanded. | D．protected. |
| A．Poorer human health. | B．Fewer wildlife species. |
| C．More delicate biological systems. | D．Less nightly culture elements of the sky. |
| A．Crowd sourced data are invaluable | B．Shorter wavelengths are hard to detect. |
| C．Satellites play a vital role. | D．White LEDs are widely used. |
| A．Their consistent efforts pay off. | B．The dataset needs to be updated. |
| C．The sky glow has been over-emphasized. | D．More participants are expected to join in. |
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)
