1 . Alvin, 66, was deep in the woods in Grand Cane last December when something like litter on the ground caught his eye. It was a
“Dear Santa,” the note
Alvin’s heart hammered in his chest. It reminded him of his childhood wish. He smiled and set out to
Meanwhile, Gonzalez, the mother of four-year old Luna, had no idea that such a(n)
One day, Gonzalez received a call saying that someone had found Luna’s balloon. Her jaw
“Santa dropped your balloon
Now, having received so much
| A．beautiful | B．broken | C．precious | D．blown |
| A．printed | B．wrote | C．typed | D．read |
| A．nice | B．difficult | C．demanding | D．smart |
| A．fulfill | B．spread | C．make | D．express |
| A．entertaining | B．uniting | C．reporting | D．locating |
| A．preparation | B．effort | C．research | D．game |
| A．temporarily | B．relatively | C．particularly | D．naturally |
| A．came up with | B．argued about | C．put up with | D．jumped at |
| A．healthy | B．green | C．modest | D．grand |
| A．burst | B．cracked | C．broke | D．dropped |
| A．post | B．letter | C．name | D．photo |
| A．in time | B．after all | C．by accident | D．on purpose |
| A．candies | B．gifts | C．toys | D．books |
| A．attention | B．admiration | C．popularity | D．generosity |
| A．adopted | B．stored | C．thrown | D．dragged |
2 . Lapland's reindeer (驯鹿) grow well in winters of -30℃ and even colder. So when rain falls instead of snow during the coldest months in the Arctic,it makes food hard to get for them. Now one of the best-loved symbols of Christmas is probably dying out. Numbers have fallen by over half in the last two decades as the place warms at four times the global average rate.
The animals are used to pull sleigh (雪橇) rides for tourists. The rides are part of Lapland winter wonderland experiences in thousands of British tourists each year. But this year the working herd had to be moved 60 miles further north due to the absence of snow. As a result, they can't be provided in some areas, making it hard for people to earn a living.
Lapland is often described as Europe's last great wilderness, home to lynxes, brown bears, wolverines and golden eagles. Tourism is a big part of the economy, and the town of Rovaniemi is also the "official home of Santa Claus". But changing climate (气候) is threatening its tourism industry. A report by The Finnish Climate Change Panel warns of flooding and increased rainfall, with Rovaniemi most at risk. Firms that rely on snow "will have great effects on visit levels" and these industries may be forced further north.
Erkkila of the Arctic Husky Park in Rovaniemi says: "Tourists see pictures of the Santa Claus village covered in snow and when they get here they think, 'Is this the winter wonderland?'." The Husky Park bought a wheeled cart (车) six years ago as a replacement for sleigh rides when the snow fails.
In the past it was thought the Arctic was warming twice as fast as the rest of the world. But a report published last week by scientists showed the rate is actually four times the global average.
1. What causes the drop in Lapland's reindeer population?| A．Cold winter. | B．Polluted habitats. |
| C．Heavy snow. | D．Rising temperatures. |
| A．Rides. | B．Animals. | C．Experiences. | D．Tourists. |
| A．Lapland is home to various wildlife. |
| B．Increased rainfall threatens Rovaniemi. |
| C．Rovaniemi is official home of Santa Claus. |
| D．Changing climate affects Lapland's tourism. |
| A．They feel excited. | B．They are disappointed. |
| C．They enjoy themselves. | D．They prefer wheeled carts. |
3 . Recent research discovered that a low-cost computer training program can help older persons drive less dangerously.
“We developed a training program, called Drive Aware, which could be used by anyone who has a computer,” says Jing Feng, co-author of the study and a professor of psychology at NC State. “Drive Aware is a cognitive (认知的) training program for older persons that helps them notice traffic risks more effectively. The purpose of our recent study was to see how much Drive Aware changes trainees’ driving behaviors once they get behind the wheel.”
The researchers found 27 persons aged 65 and up to test Drive Aware. In a driving simulator (模拟器), all of the study participants (参与者) experienced a basic driving exam. The “active training” group was made up of nine of the study participants. Every two weeks, the active training group had two Drive Aware trainings. A group of nine additional study participants was asked to take “passive training”. This group watched videos of others receiving the Drive Aware instruction. This happened twice, with each lasting about a week. The control group, which was made up of the remaining nine study participants, received no training. After that, all 27 study participants performed a second driving exam in the simulator.
The study participants in the active training group experienced 25% fewer “unsafe incidents (事件)” following the training, according to the researchers. There was no obvious change in the number of dangerous incidents among study participants in the passive training and control groups.
“This testing was done with a fairly limited number of study participants,” Feng says. “If we can succeed in getting the fund, we’d like to further our testing with more people to clearly prove how effective this training is at reducing accidents among older drivers.”
1. What does the underlined phrase “get behind the wheel” in paragraph 2 mean?| A．Take a risk. | B．Start a program. |
| C．Drive a car. | D．Use a computer. |
| A．Experience no training. | B．Receive two Drive Aware trainings. |
| C．Take three driving tests. | D．Observe videos of Drive Aware trainings. |
| A．By quoting former figures. | B．By investigating car accidents. |
| C．By operating the driving simulator. | D．By comparing participants’ performances. |
| A．Unclear. | B．Worried. | C．Positive. | D．Doubtful. |
4 . Winter can usually kill most wildfires. But in the far North，some forest fires just don’t die. They are thought of as “zombie (僵尸) fires”.
“Zombie fires” usually sleep underground in winter. Covered by snow, they smoke through the cold. Fueled by carbon-rich peat (泥炭) and soil in the North, most of these hidden fires spread slowly for less than 500 meters during the winter. When spring comes, the flames (火焰) of the fires appear near sites that they burned in winter, and they turn to burning fresh fuels around. This may happen well before the traditional fire season in the far North.
“Zombie fires” had been known mostly from firefighters’ stories. Few scientists studied them until details in some satellite images attracted one research team. Rebecca Scholten, a member of the team, studies earth systems at Vrije University Amsterdam in the Netherlands. Her team noticed an unusual thing. “New fires have been starting very close to the former years’ fires in recent years，and we wonder how often the fires might survive the winter,” Scholten explains.
These “zombie fires” are rarely seen before, according to a new study from Nature. But in recent years, they are becoming more common, the study warns. It is believed that the “zombie fires” are even on the road of being a threat. Forests in the far North are warming faster than the globe’s average (平均数). Scholten says, “We’re seeing more hot summers and more large fires and strong burning. That could set the stage for the fires to become a bigger problem,” she worries. And the region’s soils hold a lot of carbon—maybe twice as much as earth’s atmosphere. More fires here could give off huge amounts of greenhouse gases. That would drive a cycle of more warming and even higher risk of fires.
1. What do we know about the “zombies fires” in the far North?| A．They will completely die out in winter. |
| B．Carbon-rich peat helps them burn slowly in winter. |
| C．They often happen after the traditional fire season. |
| D．Their flames can only appear in spring. |
| A．“Zombie fires” appear earlier than the years before. |
| B．“Zombie fires” happen far from former years’ fires. |
| C．“Zombie fires” happen more frequently than before. |
| D．“Zombie fires” appear in different shapes every year. |
| A．The global warming is slowing down. |
| B．The hot summers are less and less seen. |
| C．The area’s soils are short of carbon. |
| D．More greenhouse gases are given off. |
| A．Where Are “Zombie Fires” From? |
| B．Are “Zombie Fires” Frightening? |
| C．Pay Attention To “Zombie Fires”! |
| D．“Zombie Fires” Are Caused By Humans! |
5 . More than a million tons a year of America's plastic rubbish are not ending up where they should. As many as 1, 300 plastic grocery bags per person is landing in places such as oceans and roadways, according to a new study of U. S.
In 2016, the United States generated 46.3 million tons of plastic waste, by far the most in the world. Between2.7% and 5. 3% of that was mismanaged, according to a study in Friday's journal Science Advances. “If you took nearly 2. 5 million tons of mismanaged plastic waste and dumped it on the White House lawn, it would pile as high as the Empire State Building,” said Jenna Jambeck, an environmental engineering professor.
Previous studies hadn't put the United States among the 10 worst offending nations for plastic waste in oceans. That's because the U. S. Environmental Protection Agency only tracks what goes into official parts of the waste stream such as landfills (废物填埋场) and recycling centers.
“The new study provides a more realistic view of our mismanaged waste,” said University of Toronto ecology professor Chelsea Rochman, who wasn't part of the study. “We consume a lot of plastic which then becomes plastic waste. We recycle very little of this material, which is a waste of resources.”
“A large but hard to quantify part of the problem involves the 51% of U. S. plastic waste shipped abroad for recycling to countries that routinely mismanage waste," Law said. The situation has been converting since many countries have become more limiting about taking U. S. rubbish imports. American exports of plastic waste have declined dramatically since their peak in 2016.
The government is spending billions of dollars trying to fix the problem, with modernized recycling technology and new business models to reduce waste while urging compulsory recycled content standards for new products and packaging.
“The best thing you can do environmentally is to produce no waste at all,” Jambeck said.
1. What can we know about the plastic waste in America?| A．It is improperly dealt with. | B．It is increasing every year. |
| C．It is as high as a tall building. | D．It is finding its way into landfills. |
| A．How plastic waste is managed officially. | B．Why all plastic waste isn't recycled. |
| C．When plastic waste reaches its peak. | D．Where all plastic waste finally ends up. |
| A．continuing | B．changing | C．existing | D．affecting |
| A．The lack of capital for waste management. | B．The lack of modern technology. |
| C．The limit of waste exports. | D．The seriousness of waste. |
6 . Coral reefs are some of the most diverse and valuable ecosystems on Earth. Coral reefs support more species per unit area than any other marine (海洋的) environment, including about 4,000 species of fish, 800 species of hard corals and hundreds of other species. Scientists estimate that there may be millions of undiscovered species living in and around reefs. This biodiversity is considered the key to finding new medicines for the 21st century. Many drugs are now being developed from coral reef animals and plants as possible cures for cancer, viruses, and other diseases.
Healthy coral reefs support fisheries as well as jobs and businesses through tourism and recreation. About half of all managed fisheries depend on coral reefs and related habitats for a part of their life cycles. The National Marine Fisheries Service estimates the commercial value of U. S. fisheries from coral reefs is over $ 100 million, Local economies receive billions of dollars from visitors to reefs through diving tours, recreational fishing trips, hotels, restaurants, and other businesses based near reef ecosystems.
Coral reef structures also buffer (缓冲) shorelines against 97 percent of the energy from waves, storms, and floods, helping to prevent loss of life, and property damage. When reefs are damaged or destroyed, the absence of this natural barrier can increase the damage to coastal communities from normal wave action and violent storms. Several million people live in U. S. coastal areas near coral reefs. Some coastal development is required to provide necessary infrastructure (基础设施) for coastal residents and the growing coastal tourism industry.
Despite their great economic and recreational value, coral reefs are severely threatened by pollution, disease, and habitat destruction. Once coral reefs are damaged, they are less able to support the many creatures that live on them and the communities near them. When a coral reef supports fewer fish, plants, and animals, it also loses value as a tourist destination.
1. Why is biodiversity important to medicines?| A．It can reduce the prices of new medicines. | B．It can help make new medicines. |
| C．It can be used for medicines. | D．It can be used to cure diseases. |
| A．They protect people against sharks. | B．They completely avoid serious flooding. |
| C．They prevent people from being drowned. | D．They weaken most of the energy from waves. |
| A．Most fish will die out. | B．Coastal cities will attract fewer tourists. |
| C．There will be no large fish. | D．The sea will be polluted. |
| A．The Importance of Diverse Ecosystems | B．The Environments of Coral Reefs |
| C．The Importance of Coral Reefs | D．The Value of Biodiversity |
7 . On September 7, 1930, Yuan Longping was born in Beijing. Fluent in English, his mother often read Friedrich Nietzsche's works to him. Influenced by his mother, Yuan Longping liked English, geography and chemistry at school. After graduating from university, he became a teacher in the countryside of Hunan in 1953.
With lots of crop failures, nationwide hunger hit China in the 1960s, making many people live a bad life. Yuan was sad and felt he must do something. Since the climate in Hunan was not friendly to growing wheat. He decided to devote himself to studying how to increase the production of rice, a basic food for over 60 percent of Chinese people. From then on, he began a lifelong connection with rice.
Yuan Longping succeeded in growing the world's first high production hybrid rice (杂交水稻) variety in 1973, which could reach a yield of over 500 kg per more than 200 kg than before. For the next four decades, he continued to work on the research of hybrid rice. In 2020, hybrid rice developed by his team achieved 1,500 kg per mu in two growing seasons, a new world record.
Nowadays, the hybrid rice is grown in almost half of China's rice fields and its production accounts for 60 percent of the total rice production in China. The hybrid rice production is 20 percent more than the common kinds , the yearly increase of which feeds up to 100 million people.
In 2019, Yuan Longping, known as the “Father of hybrid rice”, was awarded with Medal of the Republic, China's highest honor.
Yuan Longping's biggest dream in life was to develop more hybrid rice varieties, which could be grown all over the world to help solve the global food problem. So far, the hybrid varieties he developed have been grown in over 40 countries, including the USA, Brazil and India.
1. What do we know about Yuan Longping according to the text?| A．He began to study hybrid rice in 1973. |
| B．He received the highest honor in China at 90. |
| C．He ever taught math in the city after graduation. |
| D．He ever hoped Chinese would be free from hunger. |
| A．By listing figures. | B．By quoting reports. |
| C．By imagining results. | D．By explaining reasons. |
| A．Patient and honest. | B．Energetic and athletic. |
| C．Capable and remarkable. | D．Humorous and adventurous. |
| A．The life of Yuan Longping. | B．The team of Yuan Longping. |
| C．The honor of Yuan Longping. | D．The education of Yuan Longping. |
8 . The Biggest Stadiums in the World
People have been pouring into stadiums since the days of ancient Greece. In around 80 A.D., the Romans built the Colosseum, which remains the world’s best known stadium and continues to inform contemporary design. Rome’s Colosseum was 157 feet tall and had 80 entrances, seating 50,000 people. However, that was small fry compared with the city’s Circus Maximus, which accommodated around 250,000 people.
These days, safety regulations-not to mention the modern sports fan’s desire for a good view and comfortable seat — tend to keep stadium capacities (容量) slightly lower. Even soccer fans tend to have a seat each; gone are the days of thousands standing to watch the match.
For the biggest stadiums in the world, we have used data supplied by the World Atlas list so far, which ranks them by their stated permanent capacity, as well as updated information from official stadium websites.
All these stadiums are still functional, still open and still hosting the biggest events in world sport.
·Rungrado 1st of May Stadium, Pyongyang D.P.R. Korea. Capacity: 150,000. Opened: May 1,1989.
·Michigan Stadium, Ann Arbor, Michigan, U. S. Capacity: 107,601. Opened: October 1, 1927.
·Beaver Stadium, State College, Pennsylvania, U. S. Capacity: 106,572. Opened: September 17, 1960.
·Ohio Stadium, Columbus, Ohio, U. S. Capacity: 104,944. Opened: October 7,1922.
·Kyle Field, College Station, Texas, U. S. Capacity: 102,512. Opened: September 24, 1927.
1. How many people could the Circus Maximus hold?| A．104,944. | B．107,601. | C．About 150,000. | D．About 250,000. |
| A．Michigan Stadium. | B．Beaver Stadium. | C．Ohio Stadium. | D．Kyle Field. |
| A．They host big games. | B．They have become tourist attractions. |
| C．They were built by Americans. | D．They are favored by architects. |
9 . Improvements to energy efficiency, such as LED lights, are seen by many authorities as a top priority for cutting carbon emissions. Yet a growing body of research suggests that a rebound effect could wipe out more than half of the savings from energy efficiency improvements, making the goals of the Paris Agreement on climate change even harder to hit.
A team led by Paul Brockway at the University of Leeds, UK, looked at the existing 33 studies on the impact of the rebound effect. First comes the direct rebound: for instance,when someone buys a more efficient car, they may take advantage of that by driving it further. Then comes the indirect rebound: fuel savings leave the owner with more money to spend elsewhere in the economy, consuming energy.
Although the 33 studies used different methods to model the rebound effect, they produced very consistent estimates of its impact, leading the team to conclude that the effect wipes out, on average, 63 percent of the anticipated energy savings.
“We're not saying energy efficiency doesn't work. What we're saying is rebound needs to be taken more seriously,” says Brockway.
The idea that increased efficiency may not deliver the hopedfor savings dates back to the Jevons paradox(悖论), named after the economist William Stanley Jevons, who, in 1865,observed that more efficient coal use led to more demand for coal.
If the rebound effect does prove to be as big as suggested, it means future global energy demand will be higher than expected and the world will need far more wind and solar power and carboncapture technology than is currently being planned for.
But that doesn't mean nothing can be done to limit the rebound effect. One answer is to double down on energy efficiency and do twice as much to achieve the same effect.
1. Which of the following is a rebound effect?| A．A man uses LED lights to cut carbon emissions. |
| B．A company uses coal more efficiently to reduce waste. |
| C．A family saves money by using energysaving devices. |
| D．A lady spends savings from her fuel efficient car on more clothes. |
| A．By interviewing economists. |
| B．By analyzing former studies. |
| C．By modeling the rebound effect. |
| D．By debating about the Jevons paradox. |
| A．Authorities should dismiss energy efficiency. |
| B．Worldwide efforts to preserve energy are in vain. |
| C．The rebound effect helps protect the environment. |
| D．More attention should be paid to the rebound effect. |
| A．Positive. | B．Pessimistic. |
| C．Doubtful. | D．Disapproving. |
