1 . To produce the classic clothing, blue jeans, producers rely on indigo dye (靛蓝染料), the only molecule known to provide jeans’ unique, beloved color. While indigo itself naturally comes from a plant, growing demand for blue jeans throughout the 20th century gave rise to synthetic (合成的) indigo, which is now more commonly used.
Indigo is the dye that makes jeans blue, but it doesn’t mix with water. To dye clothes, usually, chemicals are needed to make the color stick to the cloth. But in Denmark, scientists have created a new way to dye clothes using an enzyme (酶), which is a kind of protein that can cause chemical reactions, instead of harmful chemicals. This new method is better for the environment and doesn’t use poisonous stuff.
The chemical process for dyeing blue jeans has persisted for the last century. Workers are exposed to the poisonous chemicals, which also pollute the environment near factories. Waste water from those factories often ends up in waterways, decimating local ecosystems and even dyeing rivers blue.
Ditte Hededam Welner, the study’s lead researcher, says their new enzyme works really well and is strong enough for making lots of jeans without breaking down. This enzyme makes dyeing with indican, which is like indigo, much less harmful to the planet — about 92% better than the old way.
However, the new method doesn’t fix all the environmental problems of making jeans. Making a single pair of jeans uses a lot of water — enough to fill many bathtubs — from growing the cotton to putting the final touches on the jeans.
Even though the new dyeing process is better for the environment, it’s not always easy or cheap to change to it. Welner’s team isn’t sure if jeans companies will find it easy or affordable to switch to this method. It costs a little bit more — just seven cents extra per pair of jeans — to use the enzyme for dyeing. But Welner believes it’s worth it because it’s much better for the environment.
1. Why was synthetic indigo created in the 20th century?| A．It made jeans’ color unique. | B．It was easy to dye cloth with it. |
| C．People liked jeans made from it. | D．People were in greater need of jeans. |
| A．Troubling. | B．Entering. | C．Destroying. | D．Defeating. |
| A．The colour is more beautiful than the synthetic indigo. |
| B．The market can keep stable goods supplies. |
| C．Enzyme facilitates the advance of science. |
| D．The dye is more environmentally friendly. |
| A．Production costs. | B．Environmental benefits. |
| C．Water consumption. | D．Laborer shortage. |
2 . When Alex Lin was 11 years old, he read an alarming article in the newspaper about e-waste. The article said that people were throwing away their e-waste in places it should never go. This was dangerous, the article said, because e-waste contains poisonous chemicals and metals like lead. These harmful substances (物质) can leak into the environment, getting into crops, animals, water supplies — and people.
Alex showed the article to a few of his classmates. They were worried too. But what could they do about this problem with e-waste? How would they even start? “The first thing we did,” Alex says, “was to learn more about the problem.” Alex and his friends spent several weeks gathering information about the chemicals in e-waste and their effects on humans. They learned how to dispose (处理) of e-waste properly and how it could be recycled. “Then,” he says, “we had to find out what the situation was in our town. So we sent out a survey.”
What they found shocked them: Of the people who answered the survey, only one in eight even knew what e-waste was, let alone how to properly dispose of it. Alex and his friends went into action. They advertised in the local newspaper and distributed notices to students, asking residents to bring their unwanted electronics to the school parking lot. The drive lasted two days, and they collected over 21,000 pounds of e-waste.
The next step was to set up an e-waste drop-off center for the town and to find a responsible company to recycle the waste. That was when Alex and his friends learned another scary fact about e-waste — some irresponsible recycling companies don’t break down the e-waste and dispose of it safely themselves. Instead, they ship it overseas to countries such as China and Nigeria, where local environmental laws are not applied. “We checked carefully online to make sure the company we chose didn’t do this,” Alex says.
Because of the work of people like Alex and his team, more and more people are getting the message about safe disposal of e-waste. As Alex says, “Today’s technology should not become tomorrow’s poisonous trash.”
1. What can we learn about Alex from paragraph 1 and paragraph 2?| A．He was curious about chemistry experiments. |
| B．He possessed a strong sense of responsibility. |
| C．He set out to solve the problem individually. |
| D．He formed the habit of reading newspapers. |
| A．Campaign. | B．Imagination. | C．Performance. | D．Technology. |
| A．Lack of available space was the reason for shipping. |
| B．Recycling was totally banned in their own country. |
| C．They were running their companies on a tight budget. |
| D．They were not charged with insecurely disposing it. |
| A．Reusing School Computers | B．Recycling Electronic Waste |
| C．Meeting a challenge | D．Doing Scientific Experiment |
Aubrey, a mom of three, was breastfeeding her 10-month-old daughter in her Maui home last week when alarms started going off and she saw her entire neighborhood was covered in black smoke.
Aubrey and her husband Alex rushed out of the home and into their car, escaping with their 10-month-old daughter as well as their 6-year-old twin daughters. They didn’t take any necessities. In fact, they had never thought the wildfires would ever get to where they lived. After all, they were very far.
While Aubrey and her family eventually made it to safety, a relative’s home, they later learned their own home was burned to the ground.
They were left with no possessions, so Alex had to go to the neighborhood surrounding his relative’s home searching for supplies for his baby daughter Blue. He went door-to-door, asking if anyone had a baby and if there was a bottle or a diaper (尿布) and some extra milk.
One neighbor just had a baby so he gave Alex two bottles. And some neighbors gave Alex two diapers and some gave her three. Alex later said. “They were holding onto their own diapers too, which I understand.”
The disaster turned into a crisis for countless parents like Aubrey and Alex, who had to escape quickly and now needed basic supplies to keep their children alive and safe.
The wildfires claimed the lives of over 100 people, while many more remained missing. Officials on Maui warned that their supplies were running out.
Aubrey and Alex decided to travel to another island, Oahu, where they could stay in the home of Alex’s brother’s. There, they had more access to supplies like diapers and milk. Then they managed to contact with volunteers and left in a lifeboat for Oahu. Thinking those helpless people, they cried in pain.
注意：
1. 续写词数应为150左右；
2. 请按如下格式在答题卡的相应位置作答。
Now on Maui, situations were becoming worse.
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Together with other volunteers, Alex and his brother collected large quantities of supplies on Oahu.
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1. What is the conversation mainly about?
| A．Fighting fires. | B．Detecting fires. | C．Using fires. |
| A．Around 50. | B．About 400. | C．Over 8600. |
| A．Size of a car. | B．Size of a plane. | C．Size of a sports field. |
| A．Saving animals. | B．Saving the trees. | C．Saving humans. |
5 . After a magnitude 6.8 earthquake hit Luding county in Southwest China’s Sichuan province on Monday, rescuers from across the province have rushed to the hardest-hit areas to help affected local people.
During the search and rescue operations, the photo of a young rescuer holding a 2-month old baby in his arms has pulled the heartstrings of many people. Zhang Zili and fellow members from the Forest Fire Brigade of Aba Tibetan and Qiang autonomous prefecture (自治区) discovered the baby and her grandmother trapped at their home in a village on Tuesday. The rescuers have carried the baby, who suffered as light head injury, and his grandma to safety. The baby’s father is also a firefighter who was participating in rescue operations after the quake hit the area. His mother and grandfather were seriously injured and sent to hospital.
The photo of Zhang holding the baby moved many people. Zhang was lovingly referred to as “brother Wen chuan” for the characters of “Wenchuan” on his armband, which indicates that he is from the Wenchuan squadron (中队) of the Aba forest fire brigade.
The 20-year-old is a native of Maoxian county, which is close to Wenchuan county, the epicenter(震中) of a 7.8-magnitude earthquake that killed more than 69, 000 people in 2008. 14 years ago, Zhang witnessed the devastating earthquake, which brought down his family’s house. He and his family lived in a temporary, shelter setup at a school playground. “I remembered the tent we lived in was dark, and I was scared,” Zhang said. Here called how emergency supplies were air-dropped from” helicopters and how soldiers of the People’s Liberation Army and rescuers helped locals get over the difficulties. “Then a uncle of the PLA came to me. He taught me songs to sing and played with me. He kept saying, “Don’t be afraid. We are here now.” The words left a deep impression on the boy’s heart.
This year, when he learnt that the local forest fire brigade was recruiting (招聘) firefighters, he did not hesitate to join it. Since then, in less than four months, he has taken part in several forest firefighting missions and rescue operations of the latest earthquake.
1. Who was injured slightly in the family during the earthquake according to the second paragraph?| A．The baby’s father. | B．The baby’s mother. |
| C．The baby’s grandpa. | D．The 2-month-old baby. |
| A．Rather usual. | B．Quite frequent. |
| C．Extremely harmful. | D．Very weak. |
| A．By treating his injuries. | B．By calming and comforting him. |
| C．By taking him to safety. | D．By offering him some food. |
| A．14 years on, rescuer passes on love and kindness |
| B．A magnitude 6.8 earthquake hit Luding county in Sichuan |
| C．Volunteers rush to Luding county to help affected people |
| D．20-year-oldman takes part in rescue operations in Luding |
6 . Since the rise in car ownership in the 1950s, the US has started building roads in cities and across the country to provide enough room for automobiles. Houston, like many cities, is turning back the clock to make room for passers-by, cyclists and parks.
Memorial Park in Houston, Texas was halved by the Memorial Drive Highway in the1950s. It has now been reunited. The highway is still there, but the road goes underneath the 1,500-acre park.
The restoration (修复) of Memorial Park is part of a larger plan that was made after the city suffered from a serious drought. It was thought that 80 percent of the forested canopy (树冠) was dead. One of the ways to fight that was to reintroduce native plants and animals.
The city hired the landscape architectural company, Nelson Byrd Woltz Landscape Architects, to work with the Houston parks and the Memorial Parks Conservancy. The architects, led by Woltz, were inspired by wildlife crossings in the Northwest US and explored the possibility of using this idea in Memorial Park. Over the years, the park was cut into 20 pieces that were divided by highways, roads and parking lots. The only crossing was a 12-foot bridge.
After 10 years of planning and constructing, the Kinder Land Bridge officially opened in early February, 2023. The bridge consists of 100 acres of greenery, and while designed for people, has reconnected wildlife corridors (廊道). The reconstruction added 45 acres of native Gulf Coast prairie (草原) that’ll increase biodiversity in the park. “This project is not just about creating a passage or a bridge. This project is about ecology, it’s about biodiversity and water management. This project is a bridge into Houston’s future.” said Shellye Arnold, president of the Memorial Park Conservancy.
1. What led to the restoration of the Memorial Park?| A．A company’s suggestion. | B．A terrible natural disaster. |
| C．The demand from the public. | D．The recovery of native plants. |
| A．They knew how to restore the Memorial Park. |
| B．They got the inspiration for rescuing animals. |
| C．They gained a sense of achievement for working. |
| D．They developed a new way to protect the landscape. |
| A．It is about 12 feet in length. | B．Its aim is to save water. |
| C．It benefits the wild animals. | D．Its birth is a short process. |
| A．A Highway Connects a Park in Houston |
| B．The Importance of Building Land Bridges |
| C．Efforts to Restore Parks in American Cities |
| D．Houston Creates a Creative Way to Restore Nature |
7 . Zou Yi, an environmentalist who lives in Beijing, has been filming the air quality near his home using his cellphone since 2013. For almost a decade till now, he has taken more than two million photos to chronic Beijing’s major environmental changes. The main purpose of taking these photos is to objectively record the changes of Beijing’s air quality every day.
After two months, Zou Yi juxtaposed (并列) 64 photos he took and posted them online. His move generated extensive discussion.
The fact that China is the first major developing country to fight against PM2.5 may sound unfamiliar to many, but most people have probably heard about the country’s action plan for preventing and controlling air pollution, or its critical battle against pollution. China has also demonstrated firm resolution in carbon reduction. As a result, clear skies and fresh air are returning to major cities.
Air quality has improved notably. Days with good air quality accounted for 87.5 percent of 2021, up 6.3 percentage points from 2015, making China the nation with the greatest air-quality improvement worldwide, according to official reports. The number of the people who follow the daily air quality photos is probably less than 10% of what it used to be. The less attention means that air pollution is not an issue anymore.
1. Why has Zou Yi been taking photos of Beijing’s sky?| A．To collect photos for his WeChat Friend Circle. |
| B．To make remarks on Beijing’s unique scenes. |
| C．To chart the changes of Beijing’s air quality. |
| D．To track the changes of Beijing’s temperature. |
| A．Totally clean. | B．Remarkably improved. |
| C．Misty and cloudy. | D．Smoggy and dusty. |
| A．put up | B．wind up | C．make up | D．show up |
| A．air pollution is still a key concern for Beijing’s residents |
| B．more and more people are concerned about air pollution now |
| C．there used to be fewer people taking photos of climate changes in Beijing |
| D．China has set a good example for the world in dealing with air pollution |
8 . The Royal Mint has announced plans for a new factory where it will process electronic junk to extract precious metals for coins and gold bars. The factory will be the first of its kind in the world.
The Royal Mint is a Government-owned company that makes coins for the UK and lots of other countries. Most of its coins are made from cheaper metals, but the Mint sometimes makes coins and medals from precious metals like gold and silver. It also makes gold bars. Countries and banks like to keep gold bars because they are very valuable and their price doesn’t tend to go up or down suddenly.
The precious metals used by the Mint are mostly mined from the ground but now it plans to make use of the vast amounts of electronic waste (known as e-waste) that is thrown away in the UK each year. Many electronic devices use small quantities of precious metals such as gold and silver because they are good conductors of electricity. However, it is estimated that just 20% of old electronics are recycled worldwide. This is not just a waste; it can be dangerous, because when e-waste is buried in rubbish dumps, metals and chemicals can leak out and pollute the environment.
Currently, e-waste from the UK is sent abroad to be melted down to recover precious metals. The new factory will use chemical reactions to do the same job much quicker and using far less energy. The process can extract 99% of the precious metals from plastic circuit boards within a few seconds, and could provide the Mint with hundreds of kilograms of gold each year.
“Our new plant will see the Royal Mint become a leader in sustainably sourced precious metals,” said Anne Jessopp, the Mint’s CEO.
1. What does the underlined word “extract” in Paragraph 1 probably mean?| A．Obtain. | B．Break. | C．Limit. | D．Add. |
| A．Energy shortage. | B．Environmental pollution. |
| C．A lack of workers. | D．A waste of gold bars. |
| A．Costly. | B．Risky. | C．Promising. | D．Demanding. |
| A．Making Use of E-waste | B．Turning Junk into Gold |
| C．Building a New Factory | D．Running a Junk Business |
9 . A new study from the University of Southampton has shown that glass bottles are more than four times as environmentally damaging as plastic bottles. The researchers explained that the production of glass bottles involves much greater amounts of energy and natural resources.
Most current research focuses on the impact of plastic, which also requires a lot of energy to mass-produce, and breaks down into smaller particles (微粒) that are affecting natural environments worldwide. However, according to the new study, glass bottles’ total environmental impacts are much bigger than plastic bottles, when certain factors are accounted for, such as their contribution to climate change through overmuch energy use.
“A large amount of energy is needed to heat the raw materials to make glass,“ explained study co-author and postgraduate researcher Alice Brock. ”During the melting of the raw materials for glass, gas pollutants such as SO2 and CO2 can be released,5, said Brock. “And since glass requires materials to be mined for its production — silica sand, soda ash and dolomite — these have all the associated environmental impacts on mining such as land degradation (退化) and dust from the mines reaching water sources.” According to Brock, silica sand mining can also cause silicosis, a disease caused by tiny silica particles reaching lungs, so there is also a considerable impact on human health.
The major advantage of glass over plastic is that it is more durable (耐用 的).A glass bottle can be reused between 12 and 20 times. Unfortunately, glass bottles are often thrown away after a single use. “I think the meaning of this new study is that we really have to move to use bottles and cans more than once. Just recycling isn’t enough, said Brock, “We need to change our mindset and move to things like refilling bottles, bottle return plans and the like if we are going to cut these environmental impacts.”
1. What is the most current research mainly about?| A．The total energy consumption of making plastic. |
| B．The detailed production process of plastic. |
| C．Plastic’s popularization in people’s daily life. |
| D．Plastic’s negative impacts on the environment. |
| A．To show its damage to the environment and people’s health. |
| B．To stress the importance of the quality of raw materials. |
| C．To warn people to reduce the frequency of mining. |
| D．To indicate the complex process of making glass. |
| A．Improving the technology of treating used bottles. |
| B．Finding alternatives to the raw materials for glass. |
| C．Reusing glass bottles as much as possible. |
| D．Replacing glass bottles with plastic ones. |
| A．Economy. | B．Geography. | C．Healthcare. | D．Environment. |
10 . Researchers have discovered a unique group of polar bears who’ve survived in the absence of sea ice: by hunting from the ice that breaks off glaciers (冰川). The bears live in southeast Greenland and are a genetically(基因地) distinct subpopulation, which suggests they’ve been separated from other polar bears for around 200 years, according to a paper published this week in Science.
“The findings show us how some polar bears might survive under climate change. but I don’t think glacier habitat is going to support huge numbers of polar bears,” said Kristin Laidre, a polar research scientist at the University of Washington. “There’s just not enough of it. We still expect to see large declines in polar bears across the Arctic under climate change.”
When temporary ice sheets form on the ocean during each fall’s freeze, the bears walk across it in search of food, often by sitting next to gaps in the ice and waiting for seals to come up for air. When the ice melts (融化) in spring, polar bears typically survive between 100 and 180 days without food until the ice forms again. As temperatures rise, however, that period is becoming longer, which is harming the bears and pushing them toward starvation. The bears living in southeast Greenland go even longer without sea ice—around 250 days. But they’ve been able to continue bunting during that period by using large pieces of ice that break off from glaciers into the water.
There are roughly 26, 000 polar bears remaining across the globe. Though the southeast Greenland bears have adapted to surviving in their surroundings, rising temperatures may ultimately cause their glacial ice to shrink, too. As Steve Armstrup, a scientist with Polar Bears International says, the study “is not some kind of effective rescue for polar bears”. While the southeast Greenland bears are able to hunt through glacial ice today, he says, “In the future, that will change unless we arrest the rise of global greenhouse gases.”
1. What do we know about the newly- found polar bears?| A．They exist in large numbers. | B．They have genetically changed. |
| C．They do better in hunting seals. | D．They survive longer without food. |
| A．Keeping global warming under control. |
| B．Moving many polar bears south. |
| C．Preventing glacial ice breaking. |
| D．Finding new habitats for polar bears. |
| A．Polar Bears Find New Opportunities |
| B．Polar Bears Suffer From Lack of Ice |
| C．Polar Bears Survive in Iceless Regions |
| D．Polar Bears Decline With Climate Change |
| A．Lifestyle. | B．Health. | C．Travel. | D．Environment. |
