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题型:阅读理解-阅读单选 难度:0.65 引用次数:151 题号:14063544

No one is sure how the ancient Egyptians built the pyramids near Cairo. But a new study suggests they used a little rock ‘n’ roll. Long-ago builders could have attached wooden poles to the stones and rolled them across the sand, the scientists say.

“Technically, I think what they're proposing is possible,” physicist Daniel Bonn said.

People have long puzzled over how the Egyptians moved such huge rocks. And there's no obvious answer. On average, each of the two million big stones weighed about as much as a large pickup truck. The Egyptians somehow moved the stone blocks to the pyramid site from about one kilometer away.

The most popular view is that Egyptian workers slid the blocks along smooth paths. Many scientists suspect workers first would have put the blocks on sleds(滑板). Then they would have dragged them along paths. To make the work easier, workers may have lubricated the paths either with wet clay or with the fat from cattle. Bonn has now tested this idea by building small sleds and dragging heavy objects over sand. .

Evidence from the sand supports this idea. Researchers found small amounts of fat, as well as a large amount of stone and the remains of paths.

However, physicist Joseph West, who led the new study, thinks there might have been a simpler way. West said, “I was inspired while watching a television program showing how sleds might have helped with pyramid construction. I thought, ‘Why don't they just try rolling the things?’” A square could be turned into a rough sort of wheel by attaching wooden poles to its sides, he realized. That, he noted, should make a block of stone “a lot easier to roll than a square”.

So he tried it. He and his students tied some poles to each of four sides of a 30-kilogram stone block. That action turned the block into somewhat a wheel. Then they placed the block on the ground.

They wrapped one end of a rope around the block and pulled. The researchers found they could easily roll the block along different kinds of paths. They calculated that rolling the block required about as much force as moving it along a slippery(滑的) path.

West hasn't tested his idea on larger blocks, but he thinks rolling has clear advantages over sliding. At least, workers wouldn't have needed to carry cattle fat or water to smooth the paths.

1. It's widely believed that the stone blocks were moved to the pyramid site by _________.
A.rolling them on roadsB.pushing them over the sand
C.sliding them on smooth pathsD.dragging them on some poles
2. What does the underlined part “lubricated the paths” in Paragraph 4 mean?
A.Made the paths wet.B.Made the paths hard.
C.Made the paths wide.D.Made the paths slippery.
3. Why is rolling better than sliding according to West?
A.Because more force is needed for sliding.
B.Because rolling work can be done by fewer cattle.
C.Because sliding on smooth roads is more dangerous.
D.Because less preparation on paths is needed for rolling.
4. What is the text mainly about?
A.An experiment on ways of moving blocks to the pyramid site.
B.An application of the method of moving blocks to the pyramid site.
C.An argument about different methods of moving blocks to the pyramid site.
D.An introduction to a possible new way of moving blocks to the pyramid site.
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【推荐1】Making my way slowly along the cliff (悬崖) face, I gazed (注视) at the great appearance of each temple I passed. As I entered the first cave and looked up at the feitian—an imagined flying god in Buddhist art, I wondered how many hundreds of thousands of others, from near and far, have looked at the same great paintings and statues.

Sometime between the 4th and 14th century, Mogao was an important Buddhist center connecting East Asia and South Asia. Hundreds of caves were carved into a cliff face running along the Daquan River. Located on the ancient Silk Road, one of the great trade routes in ancient times, it created an environment of artistic and cultural exchange between the different cultures.

My personal adventure to Dunhuang had taken me, by way of train and bus, from Xining in Qinghai Province to Lanzhou in Gansu Province, and through the Jiayu Pass. From there, I continued on through Yumen Pass, also known as the Jade Gate, and crossed the Gobi Desert to find this small and sleepy desert town, and to see these caves for myself.

As I explored the temples,I was amazed by the vividness (生动性) of the paintings and statues. It was almost as though they were painted or carved the day before. I had discovered the reason why people travel.

There are more than 2,000 coloured statues that were carved 1,500 years ago. More than 1,400statues are well-protected so they can still be appreciated. During the thousand years of artistic activity,the style of the wall paintings and statues changed. The early caves show greater Indian and Western influences,while during the Tang Dynasty the influences of Chinese painting styles became noticeable.

Today, the Mogao Caves stand out from the desert like a shinning pearl on the Silk Road.

1. What do we know about Mogao?
A.It was a Buddhist center in West Asia.B.It can be easily reached by train and bus.
C.It has carved caves on Daquan Mountains.D.It was the meeting point for different cultures.
2. Which is the writer's travelling route (路线) according to paragraph 3?
A.B.
C.D.
3. What made the writer amazed?
A.The well-protected temples.B.The large number of tourists.
C.The preserved coloured statues.D.Some paintings made not long ago.
4. Which of the following best describes the wall paintings and statues?
A.Highly developed.B.Plain.C.Culturally mixed.D.Noticeable.
5. Which of the following is the best title for the text?
A.Style Changes Over YearsB.The Pearl of the Silk Road
C.Influential Western CultureD.My Views on Dunhuang
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【推荐2】Lonely? You’re hardly alone. Since COVID-19 struck, people of all ages have struggled with this. But even before the pandemic, loneliness was becoming a growing problem for teens — especially girls. That’s the finding of a new study. And that appears throughout industrial nations across the globe. The study linked rising loneliness to greater use of smartphones and the Internet over the same years.

Jean Twenge, a psychologist, took part in the study. Her team has found that since 2012, US teens have been spending less time together face-to-face.

The new study pulled its data from a survey. Some 1 million 15- and 16-year-old students from 37 countries took part in this survey in 2000, 2003, 2012, 2015 and 2018. Its questions mostly dealt with education. But they also included six statements about loneliness, such as “I feel awkward and out of place in my school”. Students could strongly disagree, disagree, agree or strongly agree with each statement.

“Smartphones can help keep us connected with friends,” says Twenge. “But they can also make people feel excluded (排斥).” Girls, especially, may feel this way. One reason may be that they like to post more photos and selfies (自拍照) than boys. Studies have shown that if those images don’t get a lot of “likes”, it can affect a teen’s mental health.

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If technology causes loneliness, should we stop using it? “No, not at all,” argues Twenge. “Everybody of all ages is trying to figure out how we can best use technology and stay mentally healthy.” Her advice is to “use your smartphone for what it’s good for. Then put it away.” That includes putting it away overnight — ideally in another room.

1. How do girls differ from boys in smartphone use in the study?
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【推荐3】Many people believe it is crucial to have gender equality in the workplace. But achieving equality means overturning centuries of social norms. Recent research by Oxford University suggests that sometimes it is women themselves who are limiting their career opportunities.

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“Compared with boys, girls are more concerned about each aspect of job application. They are more interested in careers that offer job security, in a cause they ‘feel good about’,” Jonathan Black, director of the Oxford University Careers Service, told The Telegraph.

China faces a similar gender gap. This month, a poll by Chongqing Morning Post indicates that female college graduates care more about their working environment. As for male graduates, career prospects are more important. “This has the knock-on effect that girls may be self-limiting their choice of careers, especially because the types of jobs they seek often have informal entry processes, like getting an internship or doing unpaid work,” Black said.

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A.Women’s self-limit in career.B.Social gender discrimination.
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