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! |
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【推荐1】Typhoons can be deadly — in 2013, Typhoon Haiyan, the strongest ever recorded, was responsible for 6,340 deaths—and cost billions in damages. Current forecast models can only predict these storms 10 days in advance, at most, and they cannot precisely predict how intense the storms will become.
An international team of researchers has developed a model that analyzes nearly a quarter of Earth’s surface and atmosphere in order to better predict the conditions that birth typoons.
“The target problem of this study is how to foretell the birth of typhoons,” said paper author Mingkui Li, associate professor in the Key Laboratory of Physical Oceanography in the Ocean University of China and the Pilot National Laboratory for Marine Science and Technology (QNLM). “We specifically address three aspects: the beginning time, inner pressure and maximum wind speed.”
The researchers also accounted for the influence of one variable(变量) on another, such as wind speed on sea surface temperature. This influence is well understood and accounted for in climate predictions and in weather forecasts, but it has not been fully applied in understanding how long-term climate affects day-to-day weather, according to Li. “We aimed to provide insights on the time scale that can be used to forecast typhoons in advance.”
From their study, the researchers determined that a model with the ability to better understand the relationship between warm sea surface temperatures and weak wind movement— conditions that favor typhoon formation—could improve typhoon predictability.
“Our goal is to develop a 10 to 30-day prediction system that will lead to seamless(无缝的) weather-climate predictions.” Shaoqing Zhang, paper author and professor in the Key Laboratory of Physical Oceanography, said.
1. What is the problem with the present forecast system?A.It cannot foretell storms in advance. |
B.It is ineffective in accuracy and timeliness. |
C.It costs too much and causes great damages. |
D.It can hardly predict the intensity of typhoons. |
A.The variable. | B.The climate | C.The temperature. | D.The influence. |
A.To advance the prediction system. |
B.To figure out the three main aspects. |
C.To know how climate affects daily weather. |
D.To understand the influence of the variables. |
A.A work diary. | B.A travel guidebook. |
C.A science magazine. | D.A fantasy fiction. |
【推荐2】In the US, tornadoes (龙卷风) are responsible for 80 deaths and more than 1,500 injuries each year. Although they happen quite frequently, tornadoes are difficult to predict. Why? Tornadoes develop from storms, but only some storms are likely to become tornadoes. Scientists don’t know where and when a storm will touch the ground and turn into a tornado. Today, the warning time for a tornado is usually just 13 minutes.
Time Samaras is a storm chaser. His job is to find tornadoes and follow them. When he gets close to a tornado, he puts a special tool called a turtle probe on the ground. This tool measures things like a tornado’s temperature, humidity (湿度), and wind speed. With this information, Samaras can learn what causes tornadoes to develop. If meteorologists (气象学家) understand this, they can warn people about tornadoes sooner and save lives.
How does Samaras hunt tornadoes? It’s not easy. First, he has to find one. Tornadoes are too small to see using weather satellites. So Samaras can’t rely on these tools to find a tornado. Instead, he waits for tornadoes to develop. Every May and June, Samaras drives about 40,000 kilometers across an area known as Tornado Alley, looking and hoping to spot a tornado.
Once Samaras sees a tornado, the chase begins. But a tornado is hard to follow. Some tornadoes change direction several times — for example, moving east and then west and then east again. When Samaras finally gets near a tornado, he puts the turtle probe on the ground. Being this close to a tornado is terrifying. Debris (碎片) is flying in the air. Then wind is blowing at high speed. He must get away quickly.
The work is risky, even for a skilled chaser like Samaras. But danger won’t stop his hunt for the perfect storm.
1. What do we know about tornadoes?A.They can be predicted by satellites. | B.They usually come down in winter. |
C.The warning time for them is very short. | D.They often develop into storms. |
A.predict tornadoes | B.collect information about tornadoes |
C.chase tornadoes | D.decrease the power of tornadoes |
A.how tornadoes develop | B.how the turtle probe works |
C.how powerful Tornado Alley is | D.how Samaras chases a tornado |
A.difficult and dangerous | B.stressful and troublesome |
C.mysterious and interesting | D.exciting and popular |
【推荐3】Earthquakes are common natural disasters. No matter where you are, knowing how to protect yourself and your family during an earthquake is necessary.
Some experts believe that when you feel the ground is shaking, drop down, take cover under a desk and hold on. Most earthquake injuries are the result of being hit by something falling on you. You should stay indoors until the shaking stops. If you are outdoors, don’t stay near buildings, trees or power lines. Many people think that in case of an earthquake, they should “get under something” like a doorway or desk, in order to avoid being hurt by falling objects. Rescue experts now say this is the wrong thing to do. For example, in the 1985 Mexico City earthquake, they found hundreds of children in schools, crushed by their desks. However, they could have survived by lying in the aisle (通道,走道) next to their desks.
So find a nice piece of furniture, a chair, a sofa, and lie down, or curl up next to it. A falling roof may compact (压实) the furniture, but will still leave a space for you to survive next to it. This also holds true if you are in a hotel room, especially at night. Get off the bed, and lie down next to it.
In San Francisco’s 1989 earthquake, the upper freeway fell on the lower one. People who drove along were crushed in their cars. But they had time to get out and lie down next to their cars. Yes, their cars were crushed, but there was space from top to bottom next to the vehicles for people to survive and wait a rescue.
Doorways and stairways are very unsafe. Stay away from those.
What can we do to keep ourselves safe? Staying calm is the first and most important rule when facing accidents.
1. Which word can replace the underlined word “crushed” in Paragraph 2?A.hidden | B.protected | C.caught | D.killed |
A.Lie down under a table or desk. |
B.Shout out loudly and ask for help. |
C.Run out of the house and stay under a big tree. |
D.Lie down next to a strong piece of furniture or a car. |
A.Keep calm. | B.Drop down. |
C.Get under buildings. | D.Stay near trees. |
A.Right Earthquake Survival Tips | B.The New Idea of the Rescue Experts |
C.Great Damages Caused by Earthquake | D.A Common Natural Disaster-earthquake |
【推荐1】What’s the first thing that pops into your mind when you think of wheat straw? Most people would probably just see it as a pile of waste in a farmer’s field. However, Wu Cui, an intangible cultural inheritor, can turn the straw left over from harvested wheat into eye-catching functional artworks.
Straw weaving is a method of making daily items or artworks by braiding straw. It was listed as a national intangible cultural heritage in 2008. The earliest straw-woven products were unearthed at Hemudu Cultural Ruins, a Neolithic (新石器的) cultural site located in Zhejiang province. The Book of Rites, one of the classical works of Confucianism, also records that there were mats made of cattail grass (香蒲) during the Zhou Dynasty.
Wu explains the process of straw weaving: you need to select the materials first, and then sketch the piece on paper, which requires drawing skills. Next comes the weaving, shaping and finally the preserving of the work. Even by sticking to that process, it does not mean that you will always create a good piece of work, and the hardest part is to make it lifelike and solid.
Wu recalls that, when she was a child, woven straw items could be found almost in every household in the countryside, such as straw hats and straw shoes, because they were practical in everyday life. “Due to the impact of industrialization, manufactured goods have replaced such products, which provide low profits, and there are only about 100 individuals engaging in the work across the country,” she notes.
From her perspective, straw weaving should respond to people’s needs and preferences, while still drawing inspiration from traditional culture. “For straw weaving to blossom, craftspeople should make joint efforts to grasp the trends and opportunities of the times to create new and relevant products,” she says.
When asked about her plans, Wu says she longs to dig deeper into local traditional culture and create cultural creative products by making full use of the straw weaving technique.
1. What do we know about straw weaving according to the text?A.Straw weaving is a way to make priceless items or artworks. |
B.One of Mencius’ works documents the history of straw weaving. |
C.It has been a Chinese intangible cultural heritage for over ten years. |
D.The earliest straw weaving products were found at Banpo Cultural Ruins. |
A.Shaping the straw before weaving it. | B.Drawing the work on paper. |
C.Using a special machine to process the material. | D.Drying the fresh wheat. |
A.Chasing profits is the main purpose for craftsmen. |
B.Straw weaving artworks can neglect people’s demands. |
C.Straw weaving skills should keep pace with the times. |
D.Straw weaving has gained in popularity over recent years. |
A.Health. | B.Culture. | C.Education. | D.Business. |
【推荐2】In 2009, Kevin Pearce was at the height of his professional snowboarding career and was preparing for the Winter Olympics. But during training, he struck his head on the edge of a halfpipe. It changed the course of the then 22-year-old’s life. He had to relearn how to walk and talk and basically start over. His older brother Adam gave up his job and moved across the country to help him through recovery. Kevin eventually started doing yoga, and his family saw how it positively changed him and gave him a sense of hope.
“I remember so clearly I came out of the first yoga class with Kevin and just saw in his face this new expression, this new person,” Adam Pearce said. “We would like to figure out why and how that just happened.”
Brain injury affects the lives of millions of Americans each year, including many who are living with long-term brain-injury-related disabilities (残疾). Wanting to bring hope and cure to others through yoga, Adam and Kevin co-founded the LoveYourBrain Foundation in 2014. The nonprofit offers week-long retreats (静修) and community-based yoga classes across the United States for people who have brain injury as well as their caregivers. The organization aims to finally make a safe space and a supportive community where people with brain injury can be treated together.
The organization also trains yoga teachers, giving them knowledge on how to work with those who have brain injury, and works with hospitals to add yoga into recovery treatments early on. To date, LoveYourBrain has reached more than 35,000 people.
“Never in my wildest dreams would I have thought we’d be here almost 13 years after Kevin’s accident,” Adam said. “What this has taught me is that injury and unpleasant situations can be a powerful pathway for deeper learning and growth.”
1. What stopped Kevin Pearce taking part in the Winter Olympics?A.Adam’s joblessness. | B.His serious brain injury. |
C.Changes in his plan. | D.His new interest in yoga. |
A.True hope for recovery. | B.A new job for a disabled man. |
C.An excuse to escape from reality. | D.Access to further education. |
A.Worrying. | B.Doubtful. |
C.Impressive. | D.Controllable. |
A.To train as many yoga teachers as possible. |
B.To set up a special hospital for curing brain injury. |
C.To help hospitals find new ways to prevent brain injury. |
D.To establish a special site for brain injury treatment. |
【推荐3】WELCOME TO THE RONALD REAGAN
PRESIDENTLAL LIBRARY AND MUSEUM
Visit the limitedtime “Interactive! The Exhibition” at the Ronald Reagan Presidential Library and Museum and save more than 30% on museum admission tickets with an audio tour.
WHEN
Through Feb. 28, 2017
WHAT'S INCLUDED
$19 (reg. $28) ... Admission for one person to the Ronald Reagan Presidential Library and Museum, including “Interactive! The Exhibition” with an audio tour. Please note: the virtual reality (虚拟现实) experience will be an additional cost and participants must be 10 years old or above.
WHY WE LOVE IT
• The exhibition is a handson experience focusing on movies, TV, music and the arts
• Experience virtual reality, 1980s video games, robots, 3D printing
• Climb aboard Air Force One, view the expensive comfortable presidential car and a Marine One helicopter
• Explore Reagan's legacy (遗产): Step into an Oval Office copy and see a piece of the Berlin Wall
• The audio tour has more than 50 stops and original material not copied in the exhibits
WHAT YOU NEED TO KNOW
This is a seasonspecific event. All sales are final. No refunds (退款) or exchanges. Not valid after the expiration date. Valid any regular museum operating day through Feb. 28, 2017. Museum hours are 10 a. m. -5 p. m. , seven days a week. Valid for one person. Cannot combine with other offers. Must use in one visit. Tickets include admission to “Interactive! The Exhibition” and the entire museum's galleries and grounds.
1. What can visitors do while visiting the library and museum?A.Fly on Air Force One. |
B.Experience virtual reality for free. |
C.Approach technology of different times. |
D.Learn about the president's daily routine. |
A.It can be enjoyed with other offers. |
B.It allows limitless visits to the museum. |
C.It isn't accessible to children. |
D.It cannot be changed once sold. |
A.A notice. | B.An official report. |
C.An advertisement. | D.A tour review. |