1 . A new study finds too much light at night can cut the number of seeds a plant produces. Researchers put up street lights in Swiss meadows, far from any real street. The setup mimicked (模拟) urban light pollution. In these now-light-polluted fields, flowers had 62 percent fewer night visitors—insect pollinators(传粉者)—than the flowers in
Cabbage thistles are the most common flowers in these meadows. Fewer insect visitors at night could mean less pollen (花粉) pollinated from plant to plant (the first step in producing seeds). “For the thistles, daytime pollinator visits didn’t make up for this loss at night,” says Eva Knop, an ecologist at the University of Bern in Switzerland. Overall, night-lit plants produced one-eighth fewer seeds than plants that got full nights of darkness did.
“Light pollution might affect a whole network of plants and their pollinators,” Knop and her colleagues now suggest. Indeed, night pollination is not just a lonely business for a few special plants. There are lots of links between production of pollen by night and that by day. Plants with a lot of night visits are often very busy by day, too. Light at night that decreases seed numbers could over time mean fewer new plants. And fewer plants could mean less food and shelter for daytime insects. Therefore, a lot of pollinators working day and night shifts could be affected, which is what Knop worries about.
The new study is the first to show how artificial light affects plants’ ability to produce seeds. The test is also unusual because it considers all kinds of insect pollinators instead of focusing only on night-flying insects. The researchers paid special attention to the cabbage thistle, but they also mapped which kinds of insects visited other plants by day or night.
1. Why were street lights put up in the meadows?| A．To copy light pollution. |
| B．To promote urbanization. |
| C．To accelerate plant growth. |
| D．To attract insect pollinators. |
| A．They attract only night visitors. |
| B．They grow slowly during the night. |
| C．They are the most common Swiss flowers. |
| D．They rely on insects to help produce seeds. |
| A．sight | B．numbers | C．growth | D．food and shelter |
| A．Plants attract more insects due to light pollution. |
| B．Night-flying insects matter more than daytime ones. |
| C．Light pollution may affect plants seed numbers. |
| D．Researchers found ways to protect the insects. |
2 . A new analysis of photographs from the International Space Station has identified a shift in the kind of lighting technologies that European countries are using at night to brighten streets and buildings. Researchers have found that the old warm high-pressure street lights are rapidly being replaced by cooler LED lights. The University of Exeter study, published in Science Advances, claimed that “this phenomenon is widely increasing the risk of harmful effects to ecosystems”.
LED lighting was promoted as being intended to reduce emissions, but its usage has raised energy consumption. One explanation of this is that the increase in power efficiency and the associated decrease in economic cost have driven increased demand for lighting, therefore, any efficiency gains have been counteracted by increased consumption of light.
The study also claimed that previous research into the effects of light pollution have underestimated the impacts of blue light radiation. Chief among the health consequences of blue light is its ability to reduce the production of melatonin(褪黑素)that regulates sleep patterns in humans and other organisms. Scientific studies have warned that increased exposure to artificial blue light can worsen people’s sleeping habits.
The increase in blue light radiation in Europe has also reduced the visibility of stars in the night sky, which may have impacts on people’s sense of nature. Blue light can also alter the behavioral patterns of animals including bats and moths, as it can change their movements towards or away from light sources.
David Smith, of the conservation charity Buglife, said, “Light pollution can dramatically impact animals. We should consider light from a wider biological perspective than that of just humans and focus on better quality lighting that is harmonious with our natural world. Better quality and lower levels of lighting would help save energy, and lower financial costs, while also making our environment safer for living beings. Authorities can dim the lights during night hours, and change the bandwidths(带宽值)of their LED bulbs to produce less harmful blue light.”
1. What is the phenomenon described in paragraph 1?| A．The rising demand for public lighting. |
| B．The increasing use of LED lights. |
| C．Old street lights producing lots of emissions. |
| D．Artificial lights at night wasting much energy. |
| A．Judged. | B．Maintained. |
| C．Balanced. | D．Strengthened. |
| A．Sleep patterns. | B．Eyesight. |
| C．Learning ability. | D．Social behaviors. |
| A．To stress the importance of saving energy. |
| B．To persuade authorities to avoid using LED lights. |
| C．To show ways of improving the quality of LED bulbs. |
| D．To provide suggestions on reducing light pollution. |
3 . JP Morgan Chase, the world’s biggest fossil fuel funder, has noted in an internal report leaked to Extinction Rebellion that the company “cannot rule out catastrophic outcomes where human life as we know it is threatened.”
Most of the science inside the report is not shocking to the casual reader, but the analysis is most concerned about climate change caused by fossil fuel. These include possibilities like the sudden collapse of the West Antarctic ice sheet, which would send sea levels more than 10 feet higher than current levels and displace millions of humans. Another terrible case is that the melting permafrost sends more carbon dioxide into the atmosphere, causing more warming, and in turn more the melting of ice sheets, and carbon emissions. Of course, these are already happening. The real danger behind the motivation for this internal report lies in the possibility that the Earth’s climate could reach a tipping point.
Many believe the emergence of the internal report should serve as proof convincing enough for world leaders to take collective and decisive action. However, the attitude of many world governments towards the development of fossil fuel can surely make the global situation even worse for future generations now.
However, the report doesn’t mention other banks, or even JP Morgan itself, even though these institutions are often the ones blamed in enabling this crisis, according to a Gizmodo report. “Changes are occurring at the micro level, involving shifts in behavior by individuals, companies and investors,” says the Extinction Rebellion report. It goes on to suggest that these micro-level changes “will push emissions in the right direction,” but says nothing about government oversight, or actions that many believe is necessary to reverse the current course of the climate crisis.
It’s still half way even though one has made 90 miles out of a 100-mile journey. Humans may still fail the journey if they doesn’t persist to the last. Therefore, something will have to change at some point if the human race is going to survive.
1. What does Paragraph 2 mainly tell us about fossil fuel?| A．It may cause catastrophic outcomes. |
| B．It has nothing to do with climate changes. |
| C．It kills millions of humans every year. |
| D．It has sent sea levels 10 feet higher. |
| A．Ambitious. | B．Approving. | C．Constructive. | D．Opposed. |
| A．It’s never too late to act actively. |
| B．Many hands make light work. |
| C．A bird in the hand is worth two in the bush. |
| D．A job half-done is still a job left unfinished. |
| A．A government report. | B．A science fiction. |
| C．A news report. | D．A health magazine. |
4 . Canada’s western provinces are being hit hard by wildfires. Alberta has been hit especially hard. Heavy smoke from the fires has spread far beyond the region.
Alberta has been fighting wildfires for several weeks. Nearby British Columbia and Saskatchewan have also been seriously hit by wildfires. So far, the wildfires in Alberta have burned 8,420 square kilometers of land. Currently, 77 wildfires are still burning in Alberta, and 23 of the fires are considered out of control. That’s better than last week. In British Columbia, 89 fires are burning, and 22 are out of control. In British Columbia, about 1,350 square kilometers of land have been burned. Around 2,500 fire fighters have been working to bring the fires under control.
In Alberta, the wildfires have made over 29,000 people homeless. People have also been forced to evacuate in British Columbia and Saskatchewan. The fires have created so much smoke that it can be seen from space. The air quality across northwest Canada has been described as Very High Risk. The smoke is even affecting the air quality in several states in the United States. The wildfires have also caused problems for a number of oil and gas companies in Canada. Alberta is famous for producing oil and gas. Many oil companies have been forced to shut down.
Wildfires aren’t unusual in western Canada. But generally, the wildfire season begins later in the year. The early fires this year have been made much worse by extremely hot and dry weather. For most of May, a high-pressure weather system has been bringing record temperatures to the area. Many locations in Alberta have never seen higher temperatures than they have this year. The high temperature in Alberta on Sunday was 32.8℃.
1. What does paragraph 2 mainly talk about concerning the wildfires?| A．What they have caused. | B．How they are getting along. |
| C．Where they are happening. | D．Who are putting them down. |
| A．Wait patiently. | B．Go on working. | C．Fight back bravely. | D．Leave their homes. |
| A．They are worth arguing. | B．They are not serious. |
| C．They are understandable. | D．They happen normally. |
| A．A diary. | B．A magazine. | C．A novel. | D．A newspaper. |
增加：在缺词处加一个漏字符号(^)，并在其下面写出该加的词。
删除：把多余的词用斜线(\)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1.每处错误及其修改均仅限一词；
2.只允许修改10处，多者(从第11处起)不计分。
The environment pollution is more and more seriously today. We have no clean water to drink it because of water pollution. And when trees cut down, some animals disappear. There was more and more dirty smoke in the air. People’s health has been greatly affecting by air, noise and water pollution. Many people have died of disease caused by pollution. In order to live the better life, it’s time for us to protect our world.
Firstly, we shouldn’t throw away rubbish everywhere. And we should recycle, reduce and reuse things, what saves money and reduces pollution. Use things so long as possible. Don’t use plastic bags. Besides, we must plant more trees and stop people cut them down. We hope our world will be more and more beautiful.
6 . Objects in the night sky are disappearing from view because of light pollution, according to a new study. Outdoor lighting from street lamps, office buildings and vehicle headlights leads to sky less bright, which is when the night sky gets brighter. The brighter it is at night, the harder it is to see stars and planets from Earth.
Christopher Kyba, an astronomer with the GFZ German Research Center for Geosciences, led his team studying 50,000 star observations between 2011 and 2022. “If the brightening of the night sky continues at the current rate,” Kyba said, “a child born in a place where 250 stars are visible will only be able to see 100 stars by the time he or she turned 18.”
The issue is global but particularly common in North America, where 80% of people cannot see the Milky Way galaxy(银河系). This huge group of billions of stars should look like a wide strip of light in the dark night sky. However, only very remote places, such as the Sahara Desert and the Amazon rainforest, have a truly dark night sky.
Light pollution makes it harder for astronomers to study stars and planets. It also causes problems for animals. Animals active at night like bats become confused and crash into objects. Turtles that hatch(孵化) at night need moonlight to find the sea, but artificial lights can confuse them and make them head inland instead. Birds in cities often wake up and start singing earlier than they should. Human lights also cause themselves to produce less of a chemical called melatonin (褪黑激素). This can lead to sleep problems, headaches, tiredness, and mood issues.
To help, scientists want to raise awareness of light pollution. They suggest that people use outdoor lighting that causes less light pollution, such as motion-sensitive lights that switch on only when they’re needed.
1. How does the author lead in the topic of the text?| A．By asking a question. |
| B．By referring to a study. |
| C．By making comparisons. |
| D．By showing experiments. |
| A．Light pollution is becoming serious. |
| B．Stars are becoming fewer year by year. |
| C．Kids are losing interest in watching stars. |
| D．It’s easier for adults to see stars than kids. |
| A．Humans produce more melatonin. |
| B．Turtles are forced to hatch at sea. |
| C．Birds in cities wake up much later. |
| D．Bats can get lost during the flight. |
| A．Pollution does affect children. |
| B．Light causes human sleep problems. |
| C．Light pollution is making stars disappear. |
| D．There are some ways to deal with light pollution. |
Nowadays, our living conditions are becoming increasingly serious owing to the destruction of our environment. Many plants and
It is obvious that there are many reasons
Personally, I hold the view that effective measures must be taken
Factory farming involves
The main
On the other hand, opponents of factory farming say that it is cruel to the animals. For instance, many farm animals are kept in small spaces
To sum up, despite producing cheap food, factory farming is bad for the planet and for the animals themselves. We should try to reduce this kind of farming, although we would have to pay more for our eggs
9 . The amount of plastic pollution in the oceans is rapidly increasing. This is problematic, as at least 700 kinds of ocean animals — including sharks, whales, seabirds and turtles — can become caught in the stuff or mistake it for a tasty snack.
While we know that some ocean animals seem to catch plastic because it looks like jellyfish or some other food sources, less research has been carried out into what plastic smells like to ocean animals. But now, a study from the University of North Carolina at Chapel Hill has found the coating (涂层) that naturally builds up on ocean plastics causes the rubbish to give off the smell of food.
The researchers took 15 turtles, each around five months old, and placed them in a lab aquarium. They then piped in smells of clean water, clean plastic, turtle food, and plastic that had been soaking in the ocean environment for five weeks. The turtles showed no reaction to the smells of clean water or clean plastic. But when facing ocean soaked plastic or turtle food, they stuck their noses out of the water and showed increased activity.
“This finding is important because it’s the first proof that the smell of ocean plastics causes animals to eat them,” said Dr Kenneth J Lohmann, who took part in the study. “It’s common to find a turtle with its stomach full of plastic materials. There are also increasing reports of sea turtles that have become ill and stuck on the beach due to their taking in plastic.”
According to the researchers, areas of the ocean with much plastic may trick turtles and other animals into thinking that there are plenty of food sources, when the opposite is true. “Once these plastics are in the ocean, we don’t have a good way to remove them or prevent them from smelling like food,” said Lohmann. “The best thing we can do is to keep plastic from getting into the ocean at all.”
1. Why is plastic pollution posing a threat to ocean animals?| A．It may mislead them as food. | B．It may eat up all jellyfish. |
| C．It may kill them with its smell. | D．It may trap 700 species of sea animals. |
| A．Sea water. | B．Clean water. |
| C．Glean plastic. | D．Ocean-soaked plastic. |
| A．Turtles seem to eat plastic because it looks like food. |
| B．Turtles have died out due to their taking in plastic. |
| C．Turtles eat plastic because it gives off the smell of food. |
| D．Turtles with their stomachs full of plastic were studied. |
| A．Keep away from the polluted ocean. | B．Maintain a plastic-free ocean. |
| C．Remove plastic from the ocean. | D．Stop people feeding turtles plastic. |
| A．Entertainment | B．Literature |
| C．Health | D．Science |
The babies of women living in high air pollution neighborhoods may have lower IQs. A study followed low-income pregnant women in the South Bronx and upper Manhattan. The women
Before
Experts say the
