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题型:阅读理解-阅读单选 难度:0.65 引用次数:142 题号:17415601

The tornadoes that recently hit the U.S. are some of the most destructive and deadly in history. The death in Kentucky, the hardest stricken state, reached 80 on Monday, with dozens still not included. The scale of destruction and timing of the tornadoes so late in the year — most tornadoes happen in the spring and summer — is leading to discussion about how climate change may have affected this deadly disaster.

“In my 40 years as a meteorologist (气象学家), this was one of the most shocking weather events I’ve ever experienced,” says Jeff Masters, at Yale Climate Connections. “Watching these storms on Friday night, my thought was, ‘Is no season safe?’ Extreme tornadoes in December. That was mind blowing to me.”

Unlike heat waves and floods, the connection between a warming world and tornadoes is complex (复杂的) and uncertain. Scientists have several ideas about how tornado behavior may change. Tornadoes in December are possible. But it remains to be seen whether climate change will strengthen or increase the frequency (频率) of tornadoes.

According to NOAA’s data, there has been a recorded increase in the number of observed tornadoes since 1950, which experts believe is largely because of better technology such as Doppler radar. There’s been no observed increase in the frequency of major tornadoes over time. For example, 59 of the most serious F5 tornadoes in the U.S. have happened since 1950. But if the storm that destroyed Kentucky turns out to have been an F5, it will have been the first since 2013 — bringing to an end the longest recorded period so far.

However, “given the general influence of global warming on the atmosphere, it makes sense that it should be having an effect on tornadoes too,” says Victor Gensini, an extreme weather expert at Northern Illinois University. “Rather than asking: ‘Did climate change cause this tornado?’, it’s better to operate under the thought that climate change did play a role,” he says.

While the science on climate change and tornadoes isn’t clear, meteorologists are predicting conditions benefiting tornadoes will continue this month. “ To be honest, I’m worried about the rest of the year. I don’t think we’re out of the woods yet.” Gensini says.

1. What is one difference between the recent tornadoes and the ones in the past?
A.They caused no deaths.B.They happened in December.
C.They hit only Kentucky.D.They caught people unprepared.
2. What can be inferred in paragraph 3?
A.Waves and floods often follow tornadoes.
B.There is an agreement on how tornadoes may change.
C.Climate change will make tornadoes the most deadly disaster.
D.Scientists are unsure about how climate change influences tornadoes.
3. Which of the following statement may Victor Gensini agree with?
A.The tornadoes have nothing to do with climate warming.
B.The science on climate change is advancing very quickly.
C.The climate change most likely has an effect on tornadoes.
D.The climate change will make tornadoes much less frequent.
4. What does the underlined phrase “out of the woods” mean in the last paragraph?
A.Out of date.B.Out of order.
C.Out of danger.D.Out of control.

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【推荐1】In the hours after the earthquake that hit Nepal on April 25,2015, thousands of rescue teams from around the world were sent there to help search for survivors through the ruins. This can be a very tough task, since it can take many hours to safely dig survivors, often in need of immediate medical care, out of the ruins.

After spending 80 hours in the ruins of a building outside Kathmandu, Rishi Khanal was pulled out alive by a French search and rescue team. Khanal had been trying to get the attention of rescue workers for days. After the team found him, they spent 10 hours digging him out. The team broke the concrete (混凝土) that trapped Khanal within the building and pulled him up through a hole before carrying him away. Khanal suffered a broken leg.

“What made his survival so unusual was that after the first three days, there was little chance of finding survivors. It seemed he survived by willpower,” said Akhilesh Shrestha, a doctor who treated Khanal.

Meanwhile, rescues of a different kind were taking place on Mount Qomolangma.

On the border (边境) between Nepal and its northern neighbor China, more than 100 people were trying to climb Mount Qomolangma when the earthquake hit. 19 people were killed when an avalanche (雪崩) caused by the earthquake hit hundreds of tents (帐篷) at base camp. At least 61 people were injured.

The surviving climbers, who were stranded (滞留) in two different camps both above 21,000 feet, have all been rescued and returned to base camp. Small helicopters carried the climbers down the mountain in groups of four or five. Landing on Qomolangma long enough to pick up a passenger is dangerous even in good conditions, and helicopters could not touch down for more than 30 seconds to pick up passengers.

1. What does the underlined word “tough” in paragraph 1 probably mean?
A.Quick.B.Difficult.C.Important.D.Dangerous.
2. What did Akhilesh Shrestha say about Khanal’s survival?
A.It was thanks to Khanal’s work as a doctor.B.It depended on the rescue team’s efforts.
C.It was thought to be almost impossible.D.It encouraged other injured people.
3. What caused the death of the 19 climbers?
A.A powerful avalanche.B.Bad weather conditions.
C.Serious mountain sickness.D.A shortage of food and water.
4. Which of the following can best describe the work of rescuing climbers?
A.Risky and hopeless.B.Smooth and creative.
C.Meaningful but boring.D.Challenging but successful.
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【推荐2】Melinda Skaar wasn't expecting any phone calls. Skaar was working late in her office at the First Internet bank of California. By 10:45 that night she was almost ready to go home when the phone rang. Picking it up, she heard a guard shouting, “There is a fire! Get out of there.” Skaar didn't panic. She figured that it was just a small fire. Her office building was huge. There were 62 floors and her desk was on the 37th floor. Skaar called out to office mate Stephen Oksas, who also stayed late to work. But when they got out to the hallway, they were met by a cloud of black smoke. Rushing back, Skaar shut the door and filled the space at the bottom of the door with her jacket to keep the smoke out.

Then they called 911. Before they could call their families, however, the line went dead. That meant that they were completely cut off from the outside world. All they could do was wait and hope someone would come to rescue them.

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Skaar and Oksas knew they were lucky to be alive. Sunday is my birthday, Skaar told a reporter. She would be turning 29, but she knew she had already got the best present possible—the gift of life.

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【推荐3】After a month of fires that gave off record-breaking amounts of polluting gas, smoke from Siberian wildfires is now making its way to the west coast of the United States.

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1. What made 2020 Arctic wildfires extremely widespread?
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2. What did Jessica McCarty want to say in paragraph 3?
A.She used to laugh at those who studied the Arctic.
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