1 . Standing out from the crowd isn’t always a good thing.
Birds with uncommon traits like big beaks(喙), long tails and extended wings are more likely to be threatened and face extinction, new research finds.
“We are fascinated by the diversity of the planet’s bird species. At the same time, we are deeply concerned about the threats these birds face,” lead author Jarome Ali, a PhD candidate at Princeton University, says. Ali completed the research at Imperial College London.
For their work, researchers analyzed measurement data collected from 9, 943 bird species, which are about 99% of all living bird species. The information came from both living birds as well as museum specimens(标本). The measurements included beak size and shape, as well as the length of legs, tails and wings. Researchers combined the information on physical traits with the birds’ risk of extinction. Next, they ran simulations(模拟) about what would occur if the most threatened birds were to become extinct.
“All our simulations showed that extinction has worse effects on the diversity of bird shapes than we expected. This is deeply concerning, but not shocking given that we first found that threatened birds were more unique than non-threatened birds,” Ali says.
The researchers weren’t sure what could explain the link between unusual birds and their extinction risk. “Unique birds are likely to play specialized roles in the ecosystem. One possible explanation is that as habitats come under threat, these specialized roles are likely to be the first to be targeted,” Ali says. “For example, if you were a hummingbird and specialized to feed on a small subset of plants, then damage to your habitat would be worse than if you were a less unique bird that eats a whole range of foods.”
“The loss of these rare birds has an impact on the environment because their role in the ecosystem is lost,” Ali says. “Our findings imply that we cannot simply hope that non-threatened species will come in and fill the role of the threatened species.”
1. What did the researchers do for the study?A.They only focused on living bird species. |
B.They analyzed data on most bird species. |
C.They saved a number of threatened birds. |
D.They made a map of all the extinct birds. |
A.Relief. | B.Disappointment. | C.Surprise. | D.Concern. |
A.Rare threatened bird species’ role is unique. |
B.The loss of rare birds is actually unavoidable. |
C.Non-threatened species will take the leading role. |
D.The impact of bird loss can be easily controlled. |
A.Rare birds are the future of the ecosystem. |
B.Birds with rare features have lost their place. |
C.The current ecosystem is going unbalanced. |
D.Unusual birds are more likely to go extinct. |
2 . Floods
Basic safety Tips
● Turn around and don’t drown!
● Avoid walking or driving through flood waters.
● If there is a chance of flash floods, try to move to a higher place. Flash floods are the No. 1 cause of weather-related deaths.
If floodwaters rise around your car but the water is not moving, give up the car and move to higher ground. Do not leave the car enter moving water.
Avoid camping or parking along streams, rivers during heavy rainfall. These areas can flood quickly with little warning.
Flood Watch
Steps to Take
● Turn on your TV/radio. You will receive the latest weather forecast and emergency instructions.
● Know where to go. You may need to reach higher ground quickly.
● Build or fill your emergency kit with something new. Include a flashlight, batteries, cash, and
first-aid supplies.
● Bring in outdoor, furniture and move important indoor items to the highest possible floor. This is help protect them from flood damage.
● Disconnect electrical appliances and do not touch electrical equipment if you are wet or standing in water.
● If instructed, turn off your gas and electricity at the main switch or valve. This helps prevent fires and explosions.
Flood Warning
Steps to Take
● Move quickly to higher ground or stay on high ground.
● Avoid walking or driving through floodwaters. Turn around and don’t drown! Just 6 inches of moving water can knock you down and 2 feet of water can sweep your vehicle away.
After a flood
● Return home only when it is safe.
● Do not try to drive through areas that are still flooded.
● Photograph damage to your property for insurance purpose.
1. What shall we avoid during heavy rains according to the passage?A.Staying under trees. | B.Taking part in outdoor activities. |
C.Walking alone in the street. | D.Driving along the rivers. |
A.Be patient and take things easy. | B.Be friendly and get well organized. |
C.Be brave and make wise decisions | D.Be careful and get well prepared. |
A.When we are sure it is no longer dangerous. |
B.When we need to take pictures for insurance. |
C.When the flood in our living area disappears. |
D.When the gas and electricity supply are provided again. |
3 . One man’s trash is another man’s treasure is absolutely the case in Turkey where garbage collectors started collecting books that have been thrown away and ended up opening a library.
It started when garbage man Durson Ipek found a bag of abandoned books when he was working and then it snowballed from there. Ipek and other garbage men started gathering the books they found on the streets that were ready for landfills (垃圾填埋地) and as their collection started to grow, so did word of mouth. Soon, local residents started donating books directly. The library was initially available only to the garbage employees and their families to use but as the collection grew, so did public interest and the library was opened to the public in 2017.
“On the one hand, there were those who were leaving these books on the streets. On the other hand, others were looking for these books,” Ankaya mayor Alper Tasdelen told CNN. “We started to discuss the idea of creating a library from these books. When everyone supported it, this project happened.”
All the books that are found are sorted and checked for condition. If they pass, they go on the shelves. Today, the library has over 6,000 books that range from fiction to nonfiction and there’s a very popular children’s section that even has a collection of comic books. An entire section is devoted to scientific research and there are also books available in English and French. The collection has grown so large that the library loans books to schools and educational programs.
“Village school teachers from all over Turkey are requesting books,” Tasdelen told CNN. The government has to hire a full-time employee to manage the library.
This library is incredibly popular. It is frequently filled with the children of the city’s workers and students from nearby schools. There is a waiting room set up for readers and chess boards for the people who visit the library. You can even enjoy a cup of tea in the waiting room.
1. What does the underlined word “snowballed” in paragraph 2 probably mean?A.Declined quickly. | B.Grew slowly. | C.Developed rapidly. | D.Worsened steadily. |
A.Its great popularity. | B.Its potential significance. |
C.Its huge collection of books. | D.Its wide variety of readers. |
A.To raise people’s awareness of recycling. | B.To classify and check the donated books. |
C.To expand the social influence of the library. | D.To meet the huge demand from rural teachers. |
A.It’s an excellent place to enjoy tea. | B.It’s crowded with readers every day. |
C.It needs to improve its management. | D.It provides a very considerate service. |
4 . Widespread descriptions of animals in pop culture could actually be hurting the animals’ survival chances in the wild, a new research suggests.
Franck Courchamp of the University of Paris-Sud was interested in the idea of “appeal” (吸引力) in animals. He wanted to know: What species do people consider appealing? And what are the influences of being appealing on populations of animals in the wild?
In a research published this month, Courchamp and other researchers list the top 20 appealing species. They deemed large mammals living on land are appealing. Coming in first place are tigers, followed by lions, elephants, giraffes, panthers, pandas, cheetahs, polar bears, wolves, and gorillas. However, at least half of the interviewees didn’t realize that five of the top ten most appealing species are threatened. It is strange that we do not protect the species we care about the most.
The study also finds that we are flooded with images of these creatures, even as they are becoming fewer in the wild. The study suggests that too much imagination might be creating a “virtual population” of the animals in people’s minds, making them believe there are far more individuals in the wild than is exact.
The study authors suggest that companies who benefit from the use of these images should set as idea small percentage of their profits for protection efforts and informational campaigns. “That would be not only something fair, but something that could bring a win-win situation for them,” Courchamp says. It could bring them positive public relation, for example. Besides, if a company’s mascot (吉祥物) goes extinct, that could hurt them from a marketing point, Courchamp says. But not enough companies are “truly concerned about the protection of the species that they work on,” he adds.
1. The widespread descriptions of animals may ______ according to Paragraph 1.A.make people aware of the necessity of wild protection |
B.lead people to protect animals |
C.be beneficial for both animals and humans |
D.reduce the animals’ survival chances |
A.Rescued. | B.Established. | C.Thought. | D.Disappeared. |
A.They are among the best liked. | B.They have a large population in the wild. |
C.They have died out. | D.They are well protected. |
A.By doing experiments. | B.By giving examples. |
C.By asking a question. | D.By listing data. |
5 . Set in the snow-covered Himalayan mountains, Nainital’s waterways and forests are popular places for tourists. The road to Nainital is covered with woodlands that elephants, snakes, and squirrels always use as well. Nainital’s wildlife and human visitors exist together in the same place, but increasing tourist traffic causes a danger to some of these animals while they cross the roads. Then on the way to Nainital, an eco-bridge appears on a busy highway.
A forest manager said, “This is a rich forest, and elephant, leopards, deer and bulls move in this area. Drivers can see these large animals from some distance and slow down or stop, but they seldom do so for animals like snakes, lizards and squirrels.” To make things safer for these smaller animals, an eco-bridge was built.
No iron was found in the building of the 90-foot-long bridge. It was only made from materials like bamboo and grass and high up in the air above the road. Workers are now growing grass and plants to cover the bridge in order to attract animals. It is hoped that a green bridge will draw animals to use it. Meanwhile, it is always attracting tourists, who stop to take photos of the amazing bridge. It will make drivers realize how dangerous their high driving speed will be to animals and then reduce their speed.
Although the eco-bridge is the first Indian wildlife bridge for small animals, Indian people have recently worked on a number of projects to help cars and larger animals share the road. For example, six bridges were built over a highway in the Annamalai Hills. These bridges were built to support monkeys in reaching both sides of the highway. On India’s busy National Highway 44, several bridges have successfully enabled large wild animals to cross the crowded highway. Plans for more animal crossings are already carried out in India, including one for elephants on the Chen-nai-Bangalore National Highway.
India has some of the most unique wildlife in the world. Hopefully, nature-based city planning will benefit both India’s native wildlife and its human neighbors.
1. Why was an eco-bridge designed on the way to Nainital?A.To attract more tourists to go there. | B.To keep small animals safe. |
C.To protect some rare animals. | D.to prevent wild animals hurting people. |
A.It is cost-effective to build. | B.It is the first bridge in India. |
C.It can improve visitor’s safety. | D.It draws on the natural materials. |
A.Avoiding taking photos of animals when they are passing by. |
B.Using the new bridge only if it is necessary. |
C.Visiting Nainital’s forests as little as possible. |
D.Improving their awareness of slowing down for wild animals. |
A.Indians’ effort in building wildlife-friendly highway systems. |
B.The difficulties of building animal crossing in big cities. |
C.Why most highways in India are safe for wild animals. |
D.How animal crossing influence wildlife and humans. |
6 . Recycling is a great way of doing your bit for the environment and helping to protect the earth’s precious resources. However, a new study has revealed that our desire to be sustainable maybe doing more harm than good. According to waste company Biffa, this is because of “wish-cycling” — assuming that items such as disposable coffee cup sand pizza boxes will be recycled if put in the recycling bin. In fact, pollution from those items or other non-recyclables can result in recyclable items that have been put in the correct bin going to landfill. David Heaton, a business director at Biffa, said: “Pollution happens when items are disposed of in the wrong bins or haven’t been cleaned before being recycled.”
Experts at Biffa analyzed the amounts of non-target and non-recyclable materials that entered UK material recycling facilities between 2016 and 2020. It was found that, in 2016, the average pollution rate of recycling waste was 13.4 percent, rising over four years to 17 percent by the end of 2020. This shows that, even as people are becoming more eco-conscious, wish-cycling is increasing both in households and businesses.
The Biffa experts say that one of the best ways to prevent pollution of recycling is to clean recyclable waste before putting it in the bin. They suggest cutting off the top of old pizza boxes and only recycling that part to avoid pollution from the grease (油脂). Check the on-packaging recycling label to check it can actually be recycled When it comes to plastics, Biffa recommends checking the resin code, the number in the plastic triangle, to know whether it should go in the recycling bin. In general, resin codes 1, 2, 4 and 5 are recyclable, while 3, 6 and 7 are not. Larger items, like electronics, furniture and batteries, can also be recycled but often can not go in household recycling bins as they need specialist separating. These will need to be taken to recycling centers or sustainable waste management companies.
“It’s vital as a nation that we get better at effective ‘pre-cycling’— sorting waste correctly before collection to reduce pollution rates,” added Mr. Heaton.
1. What’s the truth of “wish-cycling” according to the first paragraph?A.The desire to lead a sustainable life. |
B.The good intention to help recycling. |
C.The habit of throwing items that end up in landfills. |
D.The practice of recycling items that can not be recycled. |
A.People are becoming more eco-conscious. |
B.Wish-cycling is on the rise in recent years. |
C.Pollution happens less frequently in recycling facilities. |
D.People are used to cleaning recyclable waste before putting it in the bin. |
A.Dispose of electronics together with household waste. |
B.Skip the step of checking the on-packaging recycling label. |
C.Check the resin code of plastics to see whether it is recyclable or not. |
D.Cutoff the top of old pizza box and throw the rest to the recycling bin. |
A.Recycling: a Big Project | B.Wish-cycling: a New Trend |
C.Wish-cycling: a Growing Concern | D.Pre-cycling: an Effective Method |
7 . The streets of Cotonou, Benin’s largest city, have been Domingo Soule’s workplace for 35 years. The 50-year-old motorcycle taxi driver spends his days driving for miles on roads blanketed in exhaust fumes (尾气), picking up customers and taking them to where they want to go. But Soule has developed a cough from breathing in air pollution, he believes, and at the end of each day his eyes hurt.
Things maybe about to change, however. In recent months, he’s seen more and more electric motorbikes on the streets of Cotonou. The Indian manufacturer (制造商) M Auto introduced its electric bikes in Benin in July 2022 and there are already 2,000 on the roads; an additional 2,000 people have paid deposits (定金) and are waiting for delivery.
Shegun Bakari, M Auto’s chief executive, has ambitions to get all moto-taxi drivers in Benin to switch to electric. This month he plans to launch a campaign to encourage them to swap (交换) their old bikes for new electric models.
The only sticking point is the battery. M Auto’s business model relies on “swap stations” throughout the city. When the battery runs out after about 60 miles, drivers must visit a station and pay to exchange the empty battery for a full one. Concerns about the battery are also preventing Soule form buying an electric bike. It could cost him 4,000 CFA £(5.40) a day to replace batteries, Soule says, whereas at the moment he can buy five litres of petrol (enough for one day) for 3,000CFA.
Bakari understands his concerns. In Beni, close to 40% of the population live under the poverty line, earning less than US$2 a day. “If I’m living with $2 a day, I can’t afford to pay more just because I want to save the planet,” he says.
He and his team are working to persuade governments in Africa to reduce taxes on electric vehicles, as well as putting plans in place to produce the electric bikes in Benin. They are also in talks with the government to build a solar plant to provide the extra energy that will be needed.
1. What does the author want to show by telling Soule’s story?A.Air pollution becomes a health issue. |
B.Road conditions badly need improving. |
C.Taxi drivers find it hard to make a living. |
D.Motorbikes area major means of transport. |
A.Riding old bikes. | B.Building more roads. |
C.Banning them on road. | D.Moving to electric bikes. |
A.Short battery life. | B.Battery safety. |
C.Insufficient charging points. | D.High battery replacement cost. |
A.Create more job opportunities. | B.Make electric bikes affordable. |
C.Cutback on fuel supplies. | D.Improve taxi drivers’ welfare. |
Despite its rapid industrialization, there are still some corners in China that have maintained its original color.
Ancient towns and villages in China are places
Black soybean is often added to its local food to create an
It usually takes a day or two to tour around the old town due to its small size, but you can always stay
9 . This fall, students at the University of Massachusetts found a new menu at their dining commons: the “diet for a cooler planet” menu. This meant herb-roasted lamb, raised with a carbon-friendly approach. It included sweet potatoes that had been picked from a local farm’s field post-harvest. The options were plant-heavy, locally grown, and involved little to no packaging.
“We wanted to let students participate in climate action by making choices about their food,” says Kathy Wicks, sustainability director for UMass Dining. The university is not alone in this effort. Increasingly, American consumers and institutions are thinking about how their food choices factor into climate change. For many, small choices at the grocery store, dining hall, and restaurant can feel more accessible than big-ticket options like buying a fuel-efficient car or installing home solar panels.
Small changes in dietary habits may make a big difference. Climate activists often target fossil fuels and transportation systems, but studies point to the food system as a significant contributor to global warming. According to Project Drawdown, a research organization that evaluates climate solutions, the way food is grown, transported, and consumed accounts for about a quarter of the world’s greenhouse gas emissions. Beef is a regular target. “If, on average, Americans cut a quarter pound of beef per week from their diet, it’s like taking 10 million cars off the road a year,” says Sujatha Bergen, director of health campaigns for the Natural Resources Defense Council. Food waste ranks third among climate solutions. While much waste occurs before consumers are involved — food left on the field or “chucked” because it does not fit appearance standards, Americans also throw out a lot of food they have purchased: about $ 1,600 worth a year per family of four.
“People are beginning to understand that their food choices make a big impact on climate,” says Megan Larmer, director of regional food at the Glynwood Center for Regional Food and Farming in New York. But, she cautions substantial change will need to come from the whole food system.
1. What is the purpose of the new menu at the University of Massachusetts?A.To market the cold dishes. | B.To reduce the cost of packaging. |
C.To popularize the plant-heavy diet. | D.To promote low carbon awareness. |
A.Food is a decisive factor for climate change. |
B.Food choices matter much to global warming. |
C.Universities are working together in climate action. |
D.Fuel-efficient cars are not affordable for consumers. |
A.It has great influence on carbon reduction. | B.It is popular among millions of car drivers. |
C.It has a close relationship with gas emission. | D.It plays a significant role in American’s diet. |
A.Food System Reform: A Successful Trial | B.Global Warming: An Approaching Danger |
C.Carbon Emission: A Killer, or Healer? | D.Low Carbon Diet: A Craze, or More? |
10 . Fish genetically engineered to glow blue, green, or red under blacklight have been a big hit among aquarium lovers for years. But the fluorescent (发荧光的) pet is not restricted to glass displays anymore. The red-and-green-glowing versions, more vivid than normal zebrafish even in natural light, have escaped fish farms in southeastern Brazil and are multiplying (繁殖) in creeks in the Atlantic Forest, a new study shows. It is a rare example of a transgenic animal accidentally becoming established in nature, and a concern for biologists, who worry the transgenic fish could threaten the local fauna (动物群) in one of the most bio-diverse spots on the planet.
In the 2000s, companies saw the potential of the fish as pets. Trademarked as Glofish, they became the world’s first genetically engineered species to be commercially available. Now, they are one of the first to escape and thrive in nature. Early on, environmentalists worried about the possibility, and Glofish sales were banned in some U. S. states such as California and several countries-including Brazil. In 2014, a single Glofish was spotted in canals of Florida. But it had not multiplied, probably because native predators such as the eastern mosquitofish and the largemouth bass ate the intruder, said the biologist who spotted the fish, Quenton Tuckett. Unlike Florida, Glofish thrived in the Brazilian creeks. In 2017 he and colleagues began to survey five creeks in three cities, finding transgenic zebrafish in all of them.
The Glofish are reproducing all year round, with a peak during the rainy season — just as native zebrafish do in Asia. But the transgenic fish seem to achieve sexual maturity earlier than their forebears, which allows them to reproduce more and spread faster. The invaders are also eating well: a diversified diet of native insects, algae, and zooplankton.
Despite Brazil’s ban on sales of the fish, stores all over the country sell them as pets. They may soon colonize other parts of the country. Tuckett says it should be “a wake-up call”. For now, the glowing fish “could be considered little weeds growing up out of the concrete”, Tuckett says, but points out that even little weeds can grow to cause a lot of damage.
1. What is the concern of the biologists?A.The ecological impacts are unpredictable. |
B.The transgenic fish could do harm to the local animals. |
C.The transgenic fish accidentally became established in nature. |
D.The transgenic fish are more vivid than normal zebrafish in natural light. |
A.They were kept as pets before the 2000s. |
B.They were prohibited from sales throughout the U. S. |
C.They didn’t thrive in Florida probably due to the local enemies. |
D.They were found in all of the Brazilian creeks in 2017. |
A.The Glofish. | B.The native zebrafish. |
C.The largemouth bass. | D.The eastern mosquitofish. |
A.Indifferent. | B.Ambiguous. |
C.Cautious. | D.Supportive. |