1 . Imagine if your clothes could pick up the sounds of everything going on around you. Scientists have created a fibre (纤维) which can pick up sounds and could be used as a hearing aid, to monitor heartbeats or even in spacecraft.
The new fibre works like a microphone. It picks up sounds and turns them into vibrations (震动) and then electrical signals, in a similar way to how ears work. When woven (编织) into a shirt, the researchers say the fibre can even detect a wearer’s heartbeat. The fibre can hear sounds as low as those in a quiet library to louder sounds like heavy road traffic. It can even accurately tell the direction of sudden sounds like handclaps.
The fibre was created by engineers at Massachusetts Institute of Technology (MIT) and researchers at Rhode Island School of Design. “Wearing a piece of clothing that can hear, you might talk through it to answer phone calls and communicate with others,” said lead author Yet Wan, who created the technology at MIT.
Once they had created the fibre, the team wove it into a more traditional piece of clothing which was much more flexible. When it was woven into the back of a shirt it was able to pick up the sound of people clapping, even picking up the direction the clapping was coming from. When woven into the shirt’s inner lining (内衬) it could pick up the person’s heartbeat, which the researchers think could be used in a pregnant woman’s clothes to monitor a baby’s heartbeat.
As well as wearable hearing aids, and clothes that track your heartbeat, the team says there are possibilities beyond clothing. “It can be integrated with spacecraft skin to listen to space dust, or embedded into (嵌入) buildings to detect cracks or strains,” Yet suggests. “It can even be woven into a smart net to monitor fish in the ocean.”
1. What is the scientists’ new invention?| A．A lightweight fibre. | B．A new spacecraft skin. |
| C．A fibre that can hear. | D．A microphone that can talk. |
| A．It is easily distracted by loud sounds. |
| B．It can even pick up faint sounds. |
| C．It works more accurately than human ears. |
| D．It fails to recognise the direction of sounds. |
| A．They wove it into babies’ clothes. | B．They turned it into a fishnet. |
| C．They put it into mass production. | D．They tested its performance. |
| A．The fibre has a wide range of applications. | B．The fibre can bring in a big profit. |
| C．The fibre needs to be improved. | D．The fibre is less flexible than traditional clothes. |
2 . One of the best parts of travel is always the food. Or, more specifically, the junk food. It’s a delight people are unlikely to get to experience during the pandemic. But in one corner of the Internet, hungry people are keeping the joy of international snacks alive.
On r/SnackExchange, users trade the delights of their homeland by mail. First, you find someone on the board to swap (交换) with. You and your partner then post each other a box full of local finest processed foods, eventually uploading photos of your haul (收获) on the board for others to see.
First created in 2010, r/SnackExchange’s membership now totals 102,000. Most come to experience snacks they can’t find at home.
For the users who take part in snack exchanges, it’s a way to learn more about the world. For Meghan Quallick, a snack swapper from California, part of the motivation for swapping with an Australian was to get her hands on a specific item: Cadbury Black Forest bars. A colleague of hers had eaten the chocolate bars on a trip to Australia in years past and fallen in love with them, but was then unable to source them at home. Quallick’s snack partner included 10 bars of the chocolate in her package. “To get some and bring them to her was pretty exciting,” Quallick said. “My colleague had tears in her eyes.”
Snack exchanges do come with obvious financial disadvantages. Part of the process is to agree on a budget before you swap — on average that’s around the US$40-50 mark. But you should be prepared to spend twice as much on shipping as the actual snacks. Occasionally swappers get scammed (欺骗) by partners who don’t deliver on their end of the deal.
Often, the snack exchanges are about more than just the food. Heather Clarke, a snack swapper from Melbourne says, “They’re often cultural exchanges as well. You get people going, ‘Can you tell me what this is?’” Often, users enclose (随信附上) instructions on how to best consume the snacks. Going the extra mile is in the spirit of the community.
1. What is paragraph 2 mainly about?| A．The history of snack exchanges. | B．How users exchange snacks on r/ SnackExchange. |
| C．Why people love to exchange snacks. | D．The influence the pandemic has on snack exchanges. |
| A．She got what she desired to eat from Quallick. | B．She failed to find a swapper online. |
| C．She found the snack she ate before online. | D．She quarreled with Quallick. |
| A．Swappers easily get scammed. |
| B．Swappers seldom find exactly what they want. |
| C．Swappers may spend more time than usual shopping. |
| D．Swappers have to spend more on shipping. |
| A．They should be improved. | B．They are lacking in community spirit. |
| C．They promote cultural exchanges. | D．They should have detailed guides from swappers. |
3 . Researchers examined 120 babies aged 6 to 14 months as they watched a children’s opera performed at a concert hall (61 babies watched in person, the other 59 watched a recorded form). They carefully set the recording so the performers were at the same size, distance and volume as the live form. The babies’ responses were tracked through heart monitors and tablets, and afterward research assistants searched through the footage (镜头) to note when babies were looking at the stage and when they looked away.
The live performance kept their attention for 72% of the 12-minute show and also had them continually watching for longer periods of time. The findings suggest that even babies feel the impact of being at a live show, through both musicians’ interactions with an audience and the social experience of being in a crowd. “Their heart rates were speeding up and slowing down in a similar fashion to other babies watching the show. Those babies were dealing with all these distractions (使人分心的事) in the concert hall, but still had these interests in the performance,” says Laura Cirelli, an assistant professor. In comparison, the recording held the babies’ attention for just half of the 12-minute show.
“If there’s something happening that we collectively are engaging (参与) in, we’re also connecting with each other. It speaks to the shared experience,” says Cirelli. “It’s well established that socialization (社会化) is important during early childhood development — a baby’s brain is laying the groundwork for future life skills and abilities as it grows. Music can play a powerful part in making those important bonds. Babies are more likely to socialize with someone after hearing them sing a familiar song or dancing to music with them.”
The study, which was co-authored by Haley Kragness, now an assistant professor at Bucknell University, will also feed into some of Cirelli’s other work. “If a baby is frequently brought to these kinds of events, will that provide the foundation (基础) for their engaging in music and the community later in childhood?” Cirelli says. “It speaks to why we are inborn to consume music and attend live shows in the first place.”
1. How did the researchers make the experiment convincing?| A．By airing two different performances. |
| B．By tracking babies’ activity with caution. |
| C．By asking a smaller group to see the live show. |
| D．By making the recording similar in every detail to the live form. |
| A．They watched the show more carefully. | B．They had faster heart rates. |
| C．They formed bonds with musicians. | D．They enjoyed it without distractions. |
| A．Concerned. | B．Uninterested. | C．Supportive. | D．Indifferent. |
| A．The reasons for our attending live shows. |
| B．The benefits of socialization for babies. |
| C．Live performances’ other influences on babies. |
| D．Babies’ growth after seeing recorded shows. |
1. What is the talk mainly about?
| A．TV programs. | B．Sports competitions. | C．Entertainment activities. |
| A．8:20 am. | B．8:40 am. | C．9:00 am. |
| A．Cloudy. | B．Rainy. | C．Sunny. |
| A．It is free of charge. |
| B．It will start at 9:00 pm. |
| C．It will be showed in the Ship’s Gym. |
1. What does Lydia like to do in her spare time?
| A．Go camping. | B．Stay with her family. | C．See foreign films. |
| A．He hates camping. |
| B．He likes outdoor activities. |
| C．He lives near the Boundary Waters. |
| A．Boring. | B．Difficult. | C．Interesting. |
| A．Visit the art gallery. |
| B．Take a photography class. |
| C．Hold a photography exhibit. |
1. Why does the man say sorry to the woman?
| A．He had her wait for a while. |
| B．He wasted some of her paper. |
| C．He can’t mail packages for her. |
| A．Moving out of the dormitory. |
| B．Canceling the campus mailbox. |
| C．Applying for the mailbox service. |
7 . A new study led by researchers at the Yale School of Public Health finds air pollution may negatively impact standardized test scores. Using data from the North Carolina Education Research Data Center, the researchers tracked 2.8 million public school students in North Carolina from 2001 to 2018 and measured their exposure to PM2.5 found in polluted air. While previous research has shown negative effects on academic performance, it has relied on relatively small or less representative samples. “The biggest strength of this study is that we tracked every student in North Carolina in those years, for the whole time period that they were in the public schools,” said Emma Zang, coauthor of the study.
The study also finds that test scores of ethnic minorities and girls are disproportionately (不成比例地) impacted by PM2.5 levels. “Females and ethnic minorities face sexism and racism,” said Zang. “There are a lot of policies that are not friendly towards them. So, when they’re exposed to the same level of air pollution, they don’t have the resources to lessen the negative influences.” More privileged populations, however, might have more resources that allow them to live in a better environment, such as in houses with air purifiers.
“The level of PM2.5 pollution in the US is relatively low, but students living in areas below the current air quality standard of annual PM2.5 concentration are still negatively impacted by air pollution when it comes to their test scores,” said Zang. “We should aim to strengthen the annual PM2.5 standard to better protect our children.”
Air pollution is known to contribute to disease and death, and it also negatively affects students’ academic performance even at low levels of pollution. The subsequent studies, the researchers said, would involve looking at whether the findings hold true in different areas, and also the reasons behind the ethnic and sexual differences.
1. What’s the greatest advantage of the study?| A．Tracking each student for 18 years. | B．Collecting more comprehensive data. |
| C．Measuring students’ PM2.5 exposure precisely. | D．Building links between air pollution and test scores. |
| A．benefit from current policies on PM2.5 pollution |
| B．have the lowest test scores due to their identities |
| C．lack resources to reduce the impact of air pollution |
| D．suffer from educational inequalities owing to their background |
| A．Offering a suggestion. | B．Raising a doubt. |
| C．Making a comparison. | D．Giving a prediction. |
| A．Applicability of the findings to other regions. | B．Ways to address racial and sexual differences. |
| C．Long-term impacts of air pollution on children. | D．Establishment of PM2.5 standard fit for children. |
They spent the night, and then took a coach
Trends popular among the youth such as “China chic” and the growing influence of young consumers have driven the development of hanfu industry in recent years. Among the various
The current popularity of hanfu in the country is believed
Kevin woke to the blaring beep of his alarm clock. “Can’t wait for that camping trip,” Kevin thought, filled with excitement. As he was leaving home, his dad grabbed him by the hand and said, “Before you go, just tell me the directions on where you and your friends are going to stay.”
“But dad!” Kevin complained.
“No buts!” Kevin’s dad added.
“Fine.” Kevin told him the directions and left.
The three friends, Kevin, Jay and Nathan, had been planning this adventure for weeks, packing their stuff-tents, snacks, and a map-preparing for a 3-day outdoor exploration. Excitement ran through Kevin as they departed for their campsite. “This trip is going to be awesome, ” Nathan excitedly yelled as they set off. But little did they know that nature had a surprise in store for them.
The first day at the campsite was going great, setting up tents, collecting firewood, and sharing stories. “Man, we nailed these tents, ” Kevin said. “I know it was easy really,” Nathan replied. The friends were happy.
Yet towards night, as the dark clouds gathered overhead, the atmosphere shifted, and a sudden storm erupted with unforgiving anger. Rain poured down from the heavens like a relentless waterfall, transforming the peaceful campsite into a muddy battleground. Worse still, a huge tree was uprooted and crashed down with a deafening crack on their only means of escape - their car. Kevin’s eyes widened in horror as he spotted the damaged wreckage beneath the fallen giant. “Our car!” he screamed over the howling wind, his voice a mix of disbelief and despair. “We’re stuck here,” he declared, his words barely audible against the backdrop of thunder and raindrops. They realized that their plans had been violently spoiled by forces beyond their control. The once quiet campsite now stood as a deserted battlefield, the fallen tree serving as a painful reminder of the unpredictable nature of the world around them.
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。
Paragraph 1: The next day, they found themselves facing the immediate problem of finding water.
_______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Paragraph 2: On the third night, a distant engine sound broke the terrible stillness.
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