1 . Flu season generally dies down in March and April, but will the coronavirus( 冠状病毒) go with it? Whether the coronavirus that's quickly spreading around the world will follow the flu season and fade away with spring's arrival is unsatisfyingly uncertain. And many scientists say it's too soon to know how the dangerous virus will behave in warmer weather.
Dozens of viruses exist in the coronavirus family, but only seven afflict (折磨) humans. Four are known to cause mild colds in people, which are common, while others are more novel, deadly, and thought to be transmitted from animals like bats and camels. Health officials have labeled this new virus SARS-CoV-2 and its disease COVID-19. The prospect that summer could delay a pandemic is tempting. Earlier this year, Donald Trump tweeted about China’s efforts to contain the virus, saying they would be successful, “especially as the weather starts to warm.”
Viruses that cause influenza or milder coronavirus colds do tend to subside in warmer months because these types of viruses have what scientists refer to as “seasonality,” so the president's comments have some scientific backing. But it's highly uncertain that SARS-CoV-2 will behave the same way. Those currently studying the disease say their research is too early to predict how the virus will respond to changing weather.
“I hope it will show seasonality, but it's hard to know,” says Stuart Weston, a researcher at the University of Maryland, where the virus is being actively studied. As of Tuesday morning, more than 800,000 coronavirus cases had been confirmed in 74 different countries, with experts saying the disease is likely to keep spreading.
And relatively recent research suggests that dry, cold air may also help viruses stay unbroken in the air or travel farther as they become airborne.
Scientists assume that low humidity, which often occurs in winter, might weaken the function of the mucus(粘液)in your nose, which your body uses to trap and drive foreign bodies like viruses or bacteria away. Cold, dry air can make that normally thick mucus drier and less efficient at trapping a virus.
1. When does flu season usually die down?| A．Early autumn. | B．Late Summer. | C．Late Spring. | D．Mid Summer. |
| A．Frightening | B．Decent | C．Critical | D．Unfamiliar |
| A．The reason why people easily get viruses in winter. |
| B．If you stay at a warm room, you can't get any viruses. |
| C．Viruses do agree with the dry and cold atmosphere in winter. |
| D．The low temperature in winter is the main reason for viruses to spread. |
| A．A health magazine. | B．A biology research. |
| C．An educational paper. | D．A medical report. |
2 . Technology is a double-edged sword(双刃剑)— while it brings convenience, it also brings new problems. The sword of “social media” even has its preference: It cuts deeper into girls than boys.
Jean Twenge, a professor at San Diego State University in the US, recently discovered an alarming trend: Since 2010, the number of teenage girls who suffer from major depression, showing signs like self-harm and suicide (自杀), has increased much faster than that of boys. It is social media again that is to blame.
Statistically, girls use social media more than boys. Boys tend to spend their screen time on games, where they talk to their teammates through headphones. Though not directly, this still counts as real human contact. Girls, however, simply type and browse through posts, which is a much more isolated (孤立的) experience. “They're not having a real-time conversation with someone most of the time,” Mary Fristad, psychologist at The Ohio State University, told NPR.
And when it comes to online shaming, girls are also more vulnerable than boys. “Girls face more pressure about their appearance, which could be exacerbated (加重) by social media,” wrote Twenge. Shannon McLaughlin, for example, is an 18-year-old from Blackburn College in the US. She shared with the Guardian how social media made her feel depressed.
But McLaughlin found a solution. She started volunteering with the National Citizen Service, where she made face-to-face contact with people. "It's so easy to forget the importance of real connections when we have hundreds of people that we' re trying to impress at our fingertips," she told the Guardian. And she hopes that others "look up from their phones and focus more on the world around them".
1. What causes more depressed girls to harm and even kill themselves according to Twenge?| A．Social media. | B．Campus injury. |
| C．Physical image. | D．Academic pressure. |
| A．Boys tend to spend more time online than girls. |
| B．Girls experience more real human contact online. |
| C．Girls are more likely to get socially separated online. |
| D．Boys have direct human contact in playing online games. |
| A．Able to adjust oneself. | B．Easily hurt or disturbed. |
| C．Concerned about something. | D．Extremely devoted or impressed. |
| A．Focus more on the online world. | B．Connect more with the real world. |
| C．Start to take part in volunteer work. | D．Make use of phones for socializing. |
3 . Anyone who has messy children, lazy partners or naughty flat mates will be impressed by the resourcefulness (足智多谋) of Katrina Neathey, the co-owner of a cleaning company in West Sussex. She has made her three teenagers sign an agreement to help keep the house tidy. Any infraction of the agreement, for example, littering up their bedroom with magazines and drinks, or failing to put their dirty plates in the dishwasher, will come with a 5 pounds’ fine on removal of their phones.
It is one way of setting up a cleaning rota (轮班表) that people might stick to. “Cleaning is teamwork.” says Lynsey Crombie, also known as the Queen of Clean. She suggests getting everyone in the household together to find out what people like doing. “In our family, my husband is better at mowing the lawn. I love cleaning rooms. Someone else might like folding the towels. You let everybody do what they’re good at, or enjoy, so there’s more chance they’ll actually do it.”
Crombie is not a fan of fines. For her children, she takes away their phones or turns off the Wi-Fi. For other adults who aren’t joining in, she suggests keeping asking them to take action.
If you aren’t sure what is required to keep the dirt at bay, there are many checklists online that you can print out to share the daily, weekly and monthly tasks. You can stick it on the fridge, and then everyone knows where they stand. If it’s not working, have another chat, such as “What do you dislike?” “How can we improve it?” Ironing out problems is all about communication.
1. What does the underlined word "infraction" in Paragraph 1 mean?| A．Change. | B．Violation. |
| C．Explanation. | D．Discussion. |
| A．By dividing tasks in terms of interest. | B．By sticking to the cleaning rota strictly. |
| C．By setting up a role model herself. | D．By offering the family timely help. |
| A．Fines work well among adults. | B．Ways to motivate people vary. |
| C．It’s hard to push adults to take charge. | D．It’s good to remind people of their tasks. |
| A．To advertise a great cleaning company in West Sussex. |
| B．To encourage people to develop teamwork spirit at home. |
| C．To call on housewives to handle lazy partners resourcefully. |
| D．To introduce ways of inspiring family to share housework. |
4 . One summer during high school, my mom volunteered me to help Grandpa research our family tree. Great, I thought, imagining hours spent pawing through dusty, rotting boxes and listening to boring stories about people I didn't know. "You'll be surprised," my mom promised, "Family histories can be very interesting."
In truth, Grandpa didn't want to limit my work to just research, hoping to also preserve our family memories. He'd discovered a computer program that helps digitally scan old pictures and letters to preserve their contents before they crumble from old age. Grandpa wanted me to help him connect the scanner and set up the computer program. He could type documents and send emails, but had never used a scanner.
Soon after, I became fascinated with my relatives' lives. I asked Grandpa to tell the story behind every picture and letter we scanned. The stories, which turned out not to be boring at all, helped me not only understand but also relate to my relatives. I became so hungry for more information that Grandpa needed additional props to keep me satisfied. He showed me a chest filled with random stuff, all covered in dust.
Perusing through their belongings, I felt I was opening a window into the world of my relatives, a world long since gone. Grandpa showed me a bundle of letters he had sent to Grandma from the front lines of World War II and I could almost smell the gunpowder. I turned the pages of my great-grandmother's recipe book and could picture her cooking in her kitchen. All of the people who had been merely names to me now had faces to match.
Later, Grandpa admitted, "I probably could have done this project myself. I just wanted someone to share it with." I can't thank him enough for sharing the experience and making me appreciate the family members who have made me the person I am. I will cherish family memories and hope that someday will be able to pass them down to my own grandchildren.
1. Which of the following can best describe the author's first impression of research?| A．Delightful. | B．Tiresome. |
| C．Surprising. | D．Interesting |
| A．Come to life. | B．Tear apart. |
| C．Fall to pieces. | D．Break through. |
| A．To show him a bundle of letters. | B．To keep him away from boredom. |
| C．To give him something to sort out. | D．To fulfill his desire to know more. |
| A．He used to serve in the army. | B．He knew nothing about computer. |
| C．He buried the letters under gunpowder. | D．He loved sharing what he had with others. |
| A．Precious family memories | B．My grandpa and his belongings |
| C．My grandpa and his family tree | D．Helping my grandpa in summer |
5 . According to statistics published by the BPI (Buying Power Index) a couple of months ago, digital streaming (流媒体) now accounts for 80 percent of the music consumption in the UK. Despite the incredible growth of online streaming platforms like iTunes, Apple Music and Tidal over the past 15 years, a more traditional medium has also seen a return of interest and sales in the music industry. In 2020, almost one in five of all albums purchased in the UK is vinyl (黑胶唱片), and it has once again become the most popular physical musical medium.
With digital streaming so easy and convenient, why are so many people drawn to traditional records? Some experts claim that vinyl is a physical medium for experiencing music, something tangible (有形的) to hold and own. For most people, having something tangible and interacting with it gives depth to the experience of music. Listening to an album and touching it the way the artist intended can make them feel more connected to the music and the artist. Records are physical products that can be not only displayed but also gifted, shared, traded and passed down through generations.
Sound quality is another hot topic. A lot of music lovers feel that the analogue sound (模拟声音) vinyl offers is superior to modern digital audio, particularly with regards to the compressed formats streaming platforms use. There’s a common belief that old-school analogue audio has a warmer, fuller sound than digitised music. For vinyl followers, the very defect traditional recorders often have, such as the familiar crackle (劈啪作响) when the record starts, bring the music to life in a different way.
There’s a ritualistic aspect to vinyl that a lot of people are drawn to, too. The act of putting a record on—carefully removing the record from the sleeve, placing it on the record player and gently dropping the needle on the right groove (凹槽)—is a more assiduous (一丝不苟的), mindful way of engaging with music. When you’re listening to vinyl, you can’t tap a button and go about your day while the streaming service provides hours of music. You need to stay close to the record player to move the needle and flip the record over.
It’s clear that the vinyl interest is well underway, and vinyl records are truly making a comeback. In an increasingly digital society, there’s something to be said for analogue experiences. Perhaps one of the great things about being alive in the 21st century is our ability to have the best of both worlds—the timeless appeal of physical records alongside the easy access to vast music libraries that streaming offers.
1. What are the statistics published by the BPI used to show?| A．An increase in music consumption. |
| B．The recovery of music industry. |
| C．A comeback of a physical medium. |
| D．The acceptance of online streaming. |
| A．It attracts people by its realistic feel. |
| B．It offers simple access to different music. |
| C．It shares a new way to enjoy music. |
| D．It provides people with perfect sound effect. |
| A．Overlooked by society. |
| B．Updated very frequently. |
| C．Performed as part of a ceremony. |
| D．Kept for a long time without changing. |
| A．Traditional records will get underway. |
| B．The analogue experiences may matter more. |
| C．Vinyl sales will boom with technological advance. |
| D．There should be a good mix of old and new. |
6 . For today’s increasingly interconnected food supply chains, “efficient” is what it’s supposed to be: Each country specializes in what it’s best, at and puts it on the global market. Producers and processors within countries specialize, too, as a way to minimize costs. As a result, at least in theory, prices stay low, the world gets fed and everyone wins.
However, the coronavirus crisis demonstrates what is wrong with this approach. When barriers prevent food from reaching its markets, or demand suddenly drops — both of which are happening now — the system falls apart.
Specialization of the food system makes it hard to shift into different markets when disruptions arise. Belgium, a leading exporter of potatoes, lost sales not only to local restaurants but also to other countries because of lockdowns（封锁）. At least the Belgians can try to eat the potatoes at home. That strategy won't work for every crop: Ghana, the world’s top cocoa exporter, lost markets when people stalled focusing on buying essential items instead of chocolate.
The loss in export income in Africa more generally could have a huge impact if the pandemic continues, as many countries there rely heavily on imported wheat and rice. The prices of these grains have soared not only because of rising demand for these grains during the crisis, but also because a few countries — including Russia and Vietnam — imposed export restrictions out of fear that sending food abroad would lead to higher prices at home.
Concentrated markets dominated by just a handful of companies heighten food system fragility. For example, just three meatpacking plants process over 95 percent of Canada’s beef and nearly all of its beef exports. Now, those meat processing plants have had to temporarily shut down because of outbreaks of COVID-19 among workers.
Seeing the spoiled products across the world should force all of us to rethink our “efficient” food supplies. We need to rejuvenate（使恢复活力）local and regional food systems to reduce the vulnerabilities that come with being too reliant on imported and corporate-dominated foods. This doesn’t mean cutting off all trade or abolishing all packaged foods, but it does mean building diversity, and increasing opportunities for small and medium-scale enterprises to flourish in shorter, more sustainable food supply chains that are closer to home.
One place to start is for governments to shift their support from the large-scale, specialized and export-oriented food system to building infrastructure for more diverse local food systems. Around the world, small-scale and organic producers have been overwhelmed with the surge in interest from customers who want to buy directly from farmers during the crisis. But these producers often lack the infrastructure to meet that demand. As governments around the world pass stimulus packages to address the crisis, building more diverse and localized food systems should be an obvious inclusion.
1. In theory, specialization of the food system ________.| A．adapts to changes efficiently | B．balances supply and demand |
| C．focuses on essential items | D．reduces costs of production |
| A．weakness | B．diversity |
| C．unfairness | D．complexity |
| A．A few countries restrict exports to stabilize local food prices. |
| B．Grain prices rise due to Africa’s dependence on importation. |
| C．Ghana might be less affected by lockdowns than Belgium was. |
| D．Packaged-food consumption should be encouraged to address the crisis. |
| A．expose food security issues during the crisis |
| B．advocate establishing diverse local food systems |
| C．discuss the development of a sustainable economy |
| D．prove the importance of sound government policies |
7 . The last time wild bison(野牛) set foot in the UK, the Middle Stone Age was coming to a close as the English people living in caves discovered farming and started clearing forests for raising farm animals. Now, 6,000 years on, wild bison are coming back to our soil as part of a major conservation project.
In an effort to protect the European bison, a small group of the endangered animals are to be reintroduced into Kent in the spring of 2022. Conservationists hope the bison will also help decimate spare pine trees to create sunny new open space in the forest and improve insect, bird and plant diversity in the area.
To start with, one male and three females will be introduced, with each female expected to produce one baby per year through natural breeding. The bison to be released in the UK will likely come from the Netherlands or Poland,where similar reintroduction programs have been achieved.
These animals have a huge size, weighing up to a ton each. They are expected to kill off trees in former pine plantations by eating or rubbing against bark(树皮). The dead wood should provide food for insects, which will in turn provide food for birds including nightingales and turtle doves. Scientists who are part of this project believe that the reintroduction of bison will pose no threats to people living nearby since these bison have a peaceful nature and will not harm others.
Paul Hadaway, from Kent wildlife Trust, said, “Using missing keystone species like bison to restore natural processes to the home of animals and plants is the key to creating bio-abundance on our land.” Once the bison are settled in their 500-hectare land, the public will be able to pay a visit and observe the animals from viewing platforms. And as they grow year by year, some may be moved to similar locations across the UK.
1. What does the underlined word “decimate” in paragraph 2 mean?| A．Destroy | B．Conserve | C．Discover. | D．Improve |
| A．They are home to bison. |
| B．They have similar environments. |
| C．They are a short distance away. |
| D．They have successful experience. |
| A．Skeptical. | B．Favourable. | C．Critical. | D．Conservative |
| A．Wild bison disappeared in the UK. |
| B．The UK starts a conservation project. |
| C．Wild bison will return to the UK. |
| D．Wild bison are vital for bio-abundance. |
8 . Think of Japan in the spring, and the image that comes to mind is likely the country’s famous cherry blossoms, which experience a “peak bloom (开花)” that only lasts a few days and have been honored in Japan for more than a thousand years. But this year, the cherry blossom season has come and gone in the blink of an eye, in one of the earliest blossoms on record -- and scientists warn it’s a symptom of the larger climate crisis threatening ecosystems everywhere.
Yasuyuki Aono, a researcher at Osaka Prefecture University, has gathered records from Kyoto back to 812 AD from historical documents and diaries. In the central city of Kyoto, cherry blossoms peaked on March 26, the earliest in more than 1,200 years, Aono said. And in the capital Tokyo, cherry blossoms reached full bloom on March 22, the second-earliest date on record.
The peak bloom dates shift every year, depending on numerous factors including weather and rainfall, but have shown a general trend of moving earlier and earlier. “Cherry blooms are very temperature sensitive,” said Aono. “Flowering and full bloom could be earlier or later depending on the temperature alone,” he said. This year’s seasons in particular influenced the blossom dates, he added. The winter was very cold, but the spring came fast and unusually warm, so “the buds are completely awake after enough rest.”
Their early bloom, however, is just the tip of the iceberg of a worldwide phenomenon that could make natural systems and countries’ economies unstable, said Amos Tai, assistant professor of earth science at the Chinese University of Hong Kong. There are two sources of increased heat, which is the main factor making the flowers bloom earlier: urbanization（城市化）and climate change. With increased urbanization, cities tend to get warmer than the surrounding rural area, in what is called the heat island effect. But a bigger reason is climate change, which has caused rising temperatures across the region and the world.
These earlier dates aren’t just a matter of tourists scrambling to catch peak bloom before the petals all fall-- it could have a lasting impact on entire ecosystems, and threaten the survival of many species.
1. What is the purpose of mentioning the dates and figures in paragraph 2?| A．To present “peak bloom” in Tokyo came earlier than in Kyoto. |
| B．To suggest when cherry blossoms will bloom next year. |
| C．To report the dates of “peak bloom” in different Japanese cities. |
| D．To show cherry blossoms came out earlier this year than in the past. |
| A．The blossom season this year is a sign of a larger global crisis. |
| B．The weather will be too cold for the blossoms to last long enough. |
| C．The earlier peak bloom will threaten the survival of many species. |
| D．The earlier bloom could affect natural systems and countries’ economy. |
| A．Deciding. | B．Managing. | C．Rushing. | D．Marching. |
| A．The Japanese Climate Crisis |
| B．Sooner’s Not Always Better Than Later |
| C．Cherry blossoms and Their Impact |
| D．The Early Blooming of Cherry Blossoms |
9 . Everyone has unique personalities, which makes life more interesting.
Over the last 25 years, doctors have classified personalities into five basic traits(特性), called the Big Five. Everyone can be described as having varying levels of agreeableness(随和), conscientiousness(认真)，emotional stability(情绪稳定)，extroversion(外向)and openness to experience.
Contrary to common knowledge, people aren't confined to certain personality types. Usually, no one is entirely an extrovert or an introvert. While a minority may be at the extreme ends of a trait, most people are somewhere in the middle. “Every personality trait is a continuous dimension. You can be very high or very low, and most people fall somewhere in between,” said Christopher Soto, a doctor at Colby College.
Personality isn’t limited to humans, either. Research finds that all animals have personalities. Both the personality of animals and humans has an evolutionary origin. Evolution can a so explain why personalities vary so much. Depending on the situation, each of the Big Five can be advantageous. For example, agreeableness is great for relationships. But if a lion were charging at you, you'd be better off with a less agreeable and more aggressive personality leaning. Because the world is so unpredictable, every aspect of each personality trait could be useful at different times, so instead of evolving a single type of personality that s first-rank for every situation, we're left with a wide variety.
An evolutionary root of personality means traits must be inherited(继承). So whether you’d like to admit it or not, much of your personality comes from your parents. In fact, for humans, about half of the differences in personality are genetic. The rest of the variability in personality comes from your environment.
Not only does your environment shape who you are, but you can, to an extent, adjust your personality to the circumstance. You can be more outgoing at a party and more agreeable at home with your family. But you can also be introverted if you need to focus on work, or aggressive when playing a competitive sport. Humans, after all, have evolved to learn from our environments.
1. Which of the following best explains the underlined word “confined” in Paragraph 3?| A．Forced. | B．Composed. | C．Devoted. | D．Limited. |
| A．A personality difference. |
| B．An environmental condition. |
| C．An evolutionary origin. |
| D．Human's relationship with animals. |
| A．Friendly. | B．Stubborn. | C．Considerate. | D．Aggressive. |
| A．Personalities can change over time. |
| B．Your environment shapes your personality. |
| C．Your genetic starting point stays you forever. |
| D．Humans have born abilities to learn from environments. |
10 . Children's average daily time spent watching television or using mobile device increased from 53 minutes at 12 months old to more than 150 minutes at 3 years old, according to an analysis by researchers at the National Institutes of Health. Children aged 7 were more likely to spend the highest amount of screen time if they had been in bad home-based childcare or were born to first-time mothers.
“Our results indicate that screen habits begin early,” said Edwina Yeung, an investigator in National Institute of Child Health and Human Development (NICHD), “This finding suggests that interventions to reduce screen time could have a better chance of success if introduced early.”
In the research, mothers of 4,000 children responded to questions on their kids' media habits when they were 12, 18, 24, 30, and 36 months of age.
The American Academy of Pediatrics recommends avoiding digital media exposure for children under 18 months of age, introducing children 18 to 24 months of age to screen media slowly, and limiting screen time to an hour a day for children from 2 to 5 years of age. In the current study, researchers found that 87% of the children had screen time exceeding these recommendations. However, while screen time increased throughout infancy, after 8 years of age, screen time fell to under 1. 5 hours per day. The researchers believe this decrease relates to time consumed by school-related activities.
The study authors classified the children into two groups based on how much their aver- age daily screen time increased from age 1 to age 3. The first group, 73% of the total, had the lower increase, from an average of nearly 51 minutes a day to nearly an hour and 47 minutes a day. The second group, 27% of the total, had the higher increase, from nearly 37 minutes of screen time a day to about 4 hours a day. Higher levels of parental education were associated with the lower odds of inclusion in the second group.
1. Which of the following is a reason for children's addiction to the media?| A．Low economic level. | B．Poor family education |
| C．The media's attraction. | D．The shortage of parents' love. |
| A．To stop children using the media. | B．To help parents care for children well |
| C．To reduce children's screen time earlier | D．To increase intervention to children |
| A．By giving some examples. | B．By showing some data. |
| C．By analyzing some reasons. | D．By concluding some results. |
| A．Probability. | B．Price. | C．Cost. | D．Income. |
