1 . Parkour Around a City
There are many ways to travel within a city.
The International Gymnastics Federation (FIG) has noticed that this activity is drawing more and more people to it—there are 100,000 people taking part in parkour (跑酷) today in the UK alone, according to The Guardian and how it is helpful for people to be much stronger: It trains coordination and balance.
But parkour enthusiasts themselves don’t seem to be happy with the idea. They see parkour as “a lifestyle”.
It’s great that the FIG wants to develop a new sport and stay close to a new cultural form. But it would be greater if they knew that not everything in life is a competition.
| A．The city is their playground. |
| B．We can walk, cycle, or take a bus. |
| C．Parkour is more interesting than you ever know. |
| D．Parkour began in France, back in 1988, in the suburbs of Paris. |
| E．However, Parkour enthusiasts sce the city in a completely different way. |
| F．For them, it is a competition against the conditions rather than just a sport, |
| G．So the FIG is thinking about recognizing parkour as a new sport and adding it to the Olympics by 2024. |
2 . Scientists at the University of Massachusetts Amherst have invented a new way to make electricity. Their method uses super-tiny holes to make electricity from moisture (湿气) in the air. The scientists hope the method will one day lead to cheap, clean electricity anywhere at any time.
Moisture in the air is what helps create electricity. Water droplets in the air carry an electric charge (电荷). In clouds, these water droplets build up large charges, which we later see as lightning. One of the researchers, Jun Yao, described the new invention as a “small-scale, man-made cloud”. Since the new device generates electricity from the air, the scientists call it “Air-gen”.
Currently, the device only makes a small amount of electricity- enough to power a small sensor. But in lab tests, the Air gen, which is a little bigger than a fingernail, produced electricity all day and all night for a week, powered by nothing but the air.
The scientists have tried to make electricity from humidity before, but those methods didn’t work for long, or were expensive to make. But in 2020, Dr Yao and his team found a way of getting electricity from humidity using special “nanowires” made from bacteria. That research led the scientists to the key discovery of the Air-gen: almost any material can create electricity in this way as long as it has nanopores (纳米孔) of the right size. This is important because it means in the future, the devices can be made very cheaply. The researchers hope that the Air-gen will become an important green energy source.
Many scientists are impressed with the ideas behind the Air-gen. But some scientists have suggested that it might be hard for the Air-gen to create enough electricity to really make a difference especially compared to power sources like solar energy. But Dr Yao and his team are working on ways to make the Air-gen technology more powerful. Because the device is s0 thin, the scientists believe that many Air-gen layers could be piled on top of each other to create more electricity without taking up more space.
1. The Air-gen is invented ________.| A．to collect water droplets in the air. | B．to generate electricity from bacteria. |
| C．to create a small-scale artificial cloud. | D．to produce electricity from moisture. |
| A．By using large charges in lightening. | B．By changing sunlight into electricity. |
| C．By using the electric charge in water droplets. | D．By turning water into a usable energy source. |
| A．It might not produce enough electricity. | B．It has a negative impact on the environment. |
| C．It requires expensive materials to manufacture. | D．It is less reliable than traditional power sources. |
| A．Inventing the Air-gen. | B．Creating electricity from the air. |
| C．Experimenting with man-made cloud. | D．Looking for green energy source. |
3 . The Maryland Center for History and Culture(MCHC) is currently hosting “The Jim Henson Exhibition: Imagination Unlimited”. The exhibition spotlights Henson’s unique contributions to children’s education, including his creation of the Muppets (布偶).
Born in 1936 in Mississippi, Henson grew up in Maryland. His creative talents were evident when he was a student at high school. He loved cartooning and creating sets for school theater productions. While a freshman at university, Henson made puppets for a local TV station. The station’s producers were so impressed that they asked him to produce his own puppet show. Called Sam and Friends, the program started in 1955. Viewers loved Henson’s playful characters, including an early version of Kermit the Frog.
While at university, Henson majored in home economics. At the time, it was the only major that offered classes in sewing and textiles (纺织品).Henson not only honed his creative skills at university, but he was also good at marketing and business. “He was an entrepreneur who happened to get into puppetry, ” said Deborah Wood, MCHC’s learning manager.
In 1959, Henson married Jane Nebel, whom be had met at university. The couple established Muppets Inc. which later became the Jim Henson Company. It was there that Focus Bert, Ernie, Miss Piggy, and other Muppets were created for Sesame Street, a popular children’s television program.Generations of children around the world have grown up watching and laming from the Muppets.
Henson, who died in 1990, created not just the Muppets, but also films, TV commercials, variety shows, and more. The exhibition shows every aspect of his career. This includes some lesser-known works, including The Cube, a short experimental film that was nominated (提名) for an Academy Award.
Visitors also get a chance to appreciate Henson’s creative process and inventiveness through hands-on displays. They can even make their own Muppets. “For me, I think the really powerful message of this exhibition is the fact that it covers Henson’s whole life and his whole career, ” said Chloe Green, public programs manager at the MCHC.
1. What’s paragraph 2 mainly about?| A．An interesting exhibition about Henson. | B．Viewers’attitude to Henson’s works. |
| C．Henson’s exceptional talents in creation. | D．Characters in Henson’s famous works. |
| A．Changed. | B．Improved. | C．Found. | D．Shared. |
| A．It was first played in 1955. | B．It was a popular radio program. |
| C．It was targeted at children. | D．It was an early version of Kermit the Frog. |
| A．Favorable. | B．Opposed. | C．Doubtful. | D．Indifferent. |
4 . Top 4 Ecotourism Destinations in the World
Travelling often comes with an environmental cost一but by choosing to travel more responsibly and sustainably, you can help to reduce the negative effects of tourism. Here are four destinations that have already signed up to a more sustainable way of life.
Costa Rica
So, you want to escape? Imagine a country that’s one -quarter national park, a place where you could hike in a rainforest in the morning and surf tropical waves in the afternoon. Imagine an adventure Eden where all kinds of unique animals run before your eyes.
That country is Costa Rica Conservation has been developed here since the 1970s, with measures to protect areas, close z00S and reverse deforestation.
About 80% of the Osa Peninsula is protected; much of it is in Corcovado National Park, where visitors can follow guided trips with local groups. Activity options range from rainforest hikes to whale-watching, diving at Isla del Cano and surfing at Cabo Matapalo.
Finland
It’s a nation where 80 percent of the territory is covered by forests Meanwhile, Finland’s air and water is claimed to be the clearest.
The Finish Tourist Board has launched the Sustainable Finland programme to help visitors plan the most eco-friendly travels and engage with nature and local culture, knowing every step of their trip has been looked at from an economical, ecological, social and cultural perspective.
Bhutan
Until 1974, the Kingdom of Bhutan remained closed to tourism. Then one day, King Jigme Singye Wangchuck declared Bhutan open to visitors. Today, only those who have booked guided tours through approved travel agencies can enter Bhutan. Permits are charged at a peak- season nightly rate of ＄250 per person, which includes a 37 percent tax that goes towards improving infrastructure (基础设施) and strengthening the healthcare and the education systems. This strict policy means tourism is controlled, with local life largely untouched by its impact.
Botswana
As one of the most convenient locations to spot the “Big Five”, Botswana’s infrastructure has long been under pressure to meet the demands of the world’s safari (游猎) market. Thankfully, the team at Great Plains Safari has been taking measures to minimize impact and invest in community-based opportunities to help local villages develop. One such measure is a kids’conservation camp, where children are invited to week-long courses to learn about their surroundings, the value of conservation and the role of environmental tourism.
1. What can tourists do in Costa Rica?| A．Camp and swim. | B．Hike and hunt. |
| C．Watch and catch whales. | D．Dive and surf. |
| A．It is no longer a location to spot the “Big Five”. |
| B．Children don’t care about environmental tourism. |
| C．The government invests little in local development |
| D．Its infrastructure has been impacted by the safari market. |
| A．Costa Rica | B．Finland | C．Bhutan | D．Botswana |
5 . Bike-friendly cities around the world
Cycling is kind to the environment so it is an excellent way to take in the city. Here are 4 bike-friendly cities adopting this green mode of transport to reduce greenhouse gas emissions.
Malmö, Sweden
Cycling in Malmö is enjoyable due to the relaxed and easy-going manner of most cyclists. The calming atmosphere makes it a great experience, even for nervous riders. A highly recommended bike route is from Ribersborg park to Limhamn Harbour, where riders can take a few good photos of the famous Öresund Bridge.
Beijing, China
In the 1970s, bicycles were the main mode of transportation for people in Beijing. However, dedicated (专用的) cycle paths for cyclists were limited. Only in May 2019, did the city launch its first achievement in cycling facility is worth a shout-out for a city with over 21 million people.
Bogota, Colombia
Bogota first introduced the concept of cycle path in 1974. The idea sees cars being banned from city roads every Sunday from 7 a.m. to 2 p.m., helping cyclists, runners and walkers exercise safely. Since then, the city has slowly but steadily expanded the program, including setting up dedicated cycle paths. As a result, Bogota now has 550km of bike paths and is the most bike-friendly city in Latin America.
Montréal, Canada
Montréal has already established protected bike paths since the 1980s. BIXI is the city’s bike-sharing system with 9,600 bikes and almost 800 stations. Cyclists can make their visit to the Tour de L’lle Montreal, a yearly bike ride where cyclists take to the streets for a day without any other vehicles being allowed on the roads.
1. Which city will attract cyclists interested in photography?| A．Beijing. | B．Malmö. | C．Montréal. | D．Bogota. |
| A．Improvement in cycling facility. |
| B．Shift in primary means of transportation. |
| C．Regular investment in building bicycle paths. |
| D．Multiple specific cycle paths connecting districts. |
| A．The most bike-friendly city. | B．The oldest protected bike paths. |
| C．An annual bicycle event. | D．The most calming effect on cyclists. |
6 . A lot of manufactured glass today made from sand and sodium carbonate(碳酸钠) can be reused or melted down and recycled into new items, but it doesn’t break down in the environment and will sit in landfills for thousands of years. A team of Chinese scientists aimed to deal with this environmental concern by developing an eco-conscious alternative.
In a study published recently in the journal Science Advances, a team at the Chinese Academy of Sciences’ Institute of Process Engineering describe how they engineered biodegradable glass made from amino acids(氨基酸). That glass would have a smaller impact on the environment and can break down in a few weeks or in several months.
In a test, glass beads(玻璃珠) made out of amino acids were placed under the skin of mice, and the breakdown of the bead and the skin healing process were observed for 30days. A diagram from the study shows how the mice’s bodies broke down the beads. In that month, the glass implant degraded beneath the skin, the wound site healed, and fur grew back. “Throughout the experimental period, no mice exhibited any pain-related behavior that may have been caused by the glass implantation, and none of them experienced obvious weight loss,” the researchers wrote in their paper.
Although amino acids do degrade over time in the environment, this biodegradable glass is not as durable as traditional glass, because amino acids can break down quickly in heat. In order to overcome this hurdle, the researchers chemically modified the amino acids using the heating-cooling procedure applied in glass manufacturing. This is when materials for the glass are heated to become soft and then rapidly cooled so as to make the glass tougher.
“It’s important to point out that this biodegradable glass is currently in the lab stage, and far from large-scale commercialization,” emphasized Yan Xuehai, a professor involved in the study, in a press release.
1. What is an advantage of the new glass?| A．It takes less time to break down. |
| B．It can be recycled at a low cost. |
| C．It is produced without pollution. |
| D．It has a wide range of applications. |
| A．To assess whether the glass is biologically harmless. |
| B．To investigate why amino acids are medically useful. |
| C．To explore how long it takes for the glass to degrade. |
| D．To observe if the glass can be melt down in mice’s stomach. |
| A．The challenge of improving the heating-cooling procedure. |
| B．Environmental problems caused by traditional glass. |
| C．The difficulty of selecting materials for the glass. |
| D．The instability of amino acids. |
| A．Amin o Acids Make Glass Tougher |
| B．Amin o Acids Cast New Light on Science |
| C．Biodegradable Glass: Closer to Sustainability |
| D．Biodegradable Glass: Ready to Hit the Market |
7 . According to a new USDA(the U.S.Department of Agriculture)report,U.S.forests could worsen global warming because they are being destroyed by natural disasters and are losing their ability to absorb planet-warming gases as they get older.The report predicts that the ability of forests to absorb carbon will start declining after 2025 and that forests could release up to 100 million metric tons of carbon a year as their emissions from decaying(腐烂)trees go above their carbon absorption.Forests could become a“substantial carbon source”by 2070,the USDA report says.
The loss of carbon absorption is driven in part by natural disasters such as wildfires, tornadoes and hurricanes,which are increasing in frequency and strength as global temperatures rise.The disasters destroy forestland,destroying its ecosystem and decreasing its ability to absorb carbon,according to Lynn Riley,a senior manager of climate science at the American Forest Foundation.Aging forests also contribute.The report found that older,mature trees absorb less carbon than younger trees of the same species,and U.S.forests are rapidly aging.
This trend is likely to continue,as forests come under increasing threat from climate change and exploitation(开采).The typical tropical forest may become a carbon source by the 2060s,according to Simon Lewis,professor in the school of geography at Leeds University. “Humans have been lucky so far,as tropical forests are cleaning up lots of our pollution,but they can’t keep doing that indefinitely,”he said.“We need to cut down fossil fuel emissions before the global carbon cycle starts working against us.”
U.S.forests currently absorb 11 percent of U.S.carbon emissions,or 150 million metric tons of carbon a year,equal to the combined emissions from 40 coal power plants,according to there port.The loss of forests as natural carbon absorbers will require the U.S.to cut emissions more rapidly to reach net zero.“As we work to decarbonize(碳减排),forests are one of the greatest tools.If we were to lose that tool,it means we will contribute that much more in emissions,”Riley said.
1. What is the main finding of the report?| A．Forests are suffering from decaying trees. |
| B．Forests could contribute to global warming. |
| C．Forests are being destroyed by natural disasters. |
| D．Forests have become substantial carbon absorbers. |
| A．The key role of forests in the ecosystem. |
| B．The consequences of frequent natural disasters. |
| C．The impact of rising global temperatures on forests. |
| D．The reasons for forests’ declining ability to absorb carbon. |
| A．Reducing fossil fuel emissions. |
| B．Cleaning up decaying trees in time. |
| C．Planting trees on a large scale. |
| D．Limiting the exploitation of forests. |
| A．To offer suggestions on forest management. |
| B．To stress the significance of forest protection. |
| C．To present the efforts made to reach net zero. |
| D．To show the carbon emissions from coal power plants. |
8 . Endangered polar bears are breeding (繁殖) with grizzly bears (灰熊), creating “pizzly” bears, which is being driven by climate change, scientists say.
As the world warms and Arctic sea ice thins, starving polar bears are being forced ever further south, where they meet grizzlies, whose ranges are expanding northwards. And with that growing contact between the two come increasing hybrids (杂交种).
With characteristics that could give the hybrids an advantage in warming northern habitats, some scientists guess that they could be here to stay. “Usually, hybrids aren’t better suited to their environments than their parents, but these hybrids are able to search for a broader range of food sources,” Larisa DeSantis, an associate professor of biological sciences at Vanderbilt University, told Live Science.
The rise of “pizzly” bears appears with polar bears’ decline: their numbers are estimated to decrease by more than 30% in the next 30 years. This sudden fall is linked partly to “pizzly” bears taking up polar bears’ ranges, where they outcompete them, but also to polar bears’ highly specialized diets.
“Polar bears mainly consumed soft foods even during the Medieval Warm Period, a previous period of rapid warming,” DeSantis said, referring to fat meals such as seals. “Although all of these starving polar bears are trying to find alternative food sources, like seabird eggs, it could be a tipping point for their survival.” Actually, the calories they gain from these sources do not balance out those they burn from searching for them. This could result in a habitat ready for the hybrids to move in and take over, leading to a loss in biodiversity if polar bears are replaced.
“We’re having massive impacts with climate change on species,” DeSantis said. “The polar bear is telling us how bad things are. In some sense, “pizzly” bears could be a sad but necessary compromise given current warming trends.”
1. Why do polar bears move further south?| A．To create hybrids. | B．To expand territory. |
| C．To relieve hunger. | D．To contact grizzlies. |
| A．Broader habitats. | B．More food options. |
| C．Climate preference. | D．Improved breeding ability. |
| A．A rare chance. | B．A critical stage. |
| C．A positive factor. | D．A constant change. |
| A．Polar bears are changing diets for climate change. |
| B．Polar bears have already adjusted to climate change. |
| C．“Pizzly” bears are on the rise because of global warming. |
| D．“Pizzly”bears have replaced polar bears for global warming. |
9 . The input Dad has on my career is incomparable. My earliest memories are of Dad sitting in the kitchen playing the guitar, listening to his favourite song by his favourite singer, and encouraging his little girl to poke (戳) keys randomly on the piano. Even watching Top of the Pops, he would get so passionate about music in it. We weren’t a religious family, but there was something spiritual about Dad’s connection with music.
Music also became a source of comfort for me. I failed to do well academically at school and had no friends. Being at school consumed so much of my emotional energy. Instead of going to school to learn stuff, I felt as though I was simply trying to get people to like me. Things were better, but the only time I truly felt happy was when I was at home listening to music with Mum and Dad or writing songs on the piano —and the older I got, the more powerful music felt.
Dad was always my biggest supporter. When I started giving live performances at the local bar, he was the one who drove me there and back. Freeing up that time wasn’t easy for an actor. His job might mean three weeks in the Czech Republic or working with George Lucas on The Adventures of Young Indiana Jones in Hollywood.
Dad has been involved with some amazing stuff, but Daddy Pig is the one that’s had the biggest impact all over the world. When I was flying to Australia for my first tour, I was trying to find something to watch on the little screen and I noticed they had Peppa Pig. If I’m missing home and family, I always put it on. Daddy Pig is a fairly real version of my dad —he loves chocolate cake, he’s funny and usually breaks things when he’s trying to mend them. Mum and Dad were friends with one of the producers of the show and I often wonder if he looked at my dad and thought, “That’s him …that’s Daddy Pig.”
1. What can we learn about the author’s father?| A．He was good at writing songs. |
| B．He was attached to music in his soul. |
| C．He encouraged her to play the guitar. |
| D．He was passionate about watching TV series. |
| A．By picking her up in a tight schedule. |
| B．By doing a demanding job as an actor. |
| C．By watching her musical performances. |
| D．By giving live performances at the local bar. |
| A．It’s her favourite childhood cartoon. |
| B．She saw her father through Daddy Pig. |
| C．She took pride in this world famous cartoon. |
| D．It’s a cartoon about her hometown and motherland. |
| A．Funny and honest. | B．Strict and hardworking. |
| C．Famous and patient. | D．Supportive and influential. |
10 . Various Apps to Learn
Apps are typical digital learning tools, which can give you diverse and personalized content to meet your needs. Want to find an app that can help you learn? Here are some great ideas for you.
| Khan Academy allows you to learn almost anything for free. It covers subjects such as math, physics, biology, and even computer science. The real magic of this app is that you can learn at your own pace. You can review subjects that you are not good at, or start learning a subject you like. The app is in English. If you want to see its translation you can visit http: //open. 163. com/khan. |
| BrainPOP mixes learning and technology in a fun and simple way. It’s free and teaches you something new every day. From the solar system to DNA, each topic starts with an interesting cartoon movie. After you’ve watched it, you can take a test to see how much you’ve learned. |
| Udemy is a “learn on demand” website and app. It is for career-oriented individuals to start their course pricing at $10. 99. This app allows you the flexibility to take your time on a course you purchase over the course of several months, without worrying about recurring (重复的) payments before you finish. This flexible learning app allows you to take things slow, fast, or anywhere in-between with complete control on your end. |
| Duolingo is the premier leader in language education for learning apps. You can learn to speak 29 different languages, all at the touch of a button. You’ll be invited not only to read new words, but to speak them. You’ll learn grammar and conversational strategies. This app helps you learn to communicate with a new portion of its inhabitants! |
| A．Khan Academy and Udemy. | B．Udemy and Duolingo. |
| C．Khan Academy and BrainPOP. | D．BrainPOP and Duolingo. |
| A．Technical support. | B．Career training. |
| C．Subjects reviewing. | D．Speaking practice. |
| A．To provide various learning activities. |
| B．To help find the suitable learning apps. |
| C．To introduce the development of learning technology. |
| D．To compare the difference of different learning methods. |
