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When talking of a typical mineral mine, people will probably think it's underground. It's unlikely that the picture of plants and soft greenery would cross their minds. Now, new explorations into phytomining may change that viewpoint. Instead of traditionally mining metals like nickel, iron or cobalt from rocks, phytomining uses plants as an alternative source (来源) for these minerals. Using plants to extract (提取) metals can have significant environmental benefits over rock mining.

Phytomining was first studied in 1983, but it hasn't yet been adopted by the metals industry. In 2004, Indonesian soil scientist Aiyen Tjoa from Tadulako University in Central Sulawesithe took her research to Sorowako, a small town in Indonesia with one of the largest nickel mining areas, to look into plants that continued to live after years of mining. She brought samples back to her lab and found that these super plants were more than just surviving—they were growing.

The plants were absorbing and storing nickel from the soil. Large quantities of metals kill most plants, but these, known as hyperaccumulators, were learning to adapt. If these plants were storing metals, that meant that science could find a way to extract the minerals for use and quite frankly, scientists easily did. When the shoots are harvested and burnt, the metals are separated from the plant material in the ashes.

Tjoa returned to Sorowako and spent years searching for new hyperaccumulator species. After a plant is considered a possibility, there's a simple test paper that turns pink when placed against the leaf of a hyperaccumulator plant. Two local Indonesian plants, sarcotheca celebica and knema matanensis, were found but there are many others still to be validated.

Tjoa's research caught the attention of Satria Bijasksana, a professor of rock magnetism. Together, they designed an experiment to understand magnetic susceptibility (磁化率) when plants accumulate more nickel. Their research led to the discovery of two new species of hyperaccumulators. Besides, this research serves as the basis for the potential that plants can give to the mining industry, offering great advantages to our ecosystem and towards building a more sustainable (可持续的) future.

【小题1】Why did Aiyen Tjoa go to Sorowako in 2004?
A.To work with the local government.B.To study the plants surviving mining.
C.To improve the soil in the small town.D.To research into underground mining.
【小题2】What can we learn about hyperaccumulators from the text?
A.They are rich in metals.B.They are free of minerals.
C.They are very easy to discover.D.They are too fragile to survive.
【小题3】The underlined word “validated” in paragraph 4 is closest in meaning to “________”.
A.monitoredB.preserved
C.confirmedD.adapted
【小题4】What can be the best title for the text?
A.A New Creative Mining Way Meets Challenges
B.Many Plants Can Act as Sources of Many Metals
C.Now Scientists Can Extract Minerals from Plants
D.Phytomining Will Take the Place of Traditional Mining
21-22高三下·河南·阶段练习
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The Chinese fashion icon, qipao, was born a century ago in Shanghai. However, the dress made its way through history from the hands of old craftsmen and is deep-rooted in Chinese culture.

Qipao used to be so popular,” Leung Long-kong, 89, a well-known qipao craftsman, says, adding that the dress was an everyday outfit among women, from the less well-off to women at the highest levels of society. “Now, nobody is wearing them except on grand and happy occasions.”

To carry on the tradition, fashion designer Mary Yu, 41, who has been attending classes teaching knot button-making techniques, is trying to renew the design of qipao by taking symbols from Chinese history and literature.

“I feel I should look into Chinese culture and learn more about the past. People should have an in-depth understanding of their culture in order to move on,” Yu says. “Fashion design requires a profound knowledge of one’s culture before visualizing it.”

“After a period of wearing foreign brands all the time, there will be a day when one looks back to traditional Chinese culture. It is about finding the stuff that exists in your genes and suits you best.”

Yu set up her own qipao brand in 2016. Most of the clothes were made by tailors based in Shenzhen and Hangzhou, for their lower cost and more traditional work.

In the constantly evolving fashion industry, qipao is catching up with the times. Zippers, digital print patterns and new materials such as lace and denim have been introduced to a new generation. More daring ideas like 3D printed qipao have also become a reality. Yu believed that with the help of these new technologies, qipao will find its way back to the daily life of Chinese people in the near future.

【小题1】Which of the following best describes Mary Yu?
A.Creative.B.Conservative.C.Cautious.D.Considerate
【小题2】Why does the author quote Leung Long-kong in Paragraph 2?
A.To call on Chinese women to wear qipao in everyday life.
B.To introduce the development of qipao in China.
C.To emphasize the importance of qipao in China nowadays.
D.To show that qipao is no longer as popular as it was.
【小题3】What did Yu do to renew the design of qipao?
A.She devoted herself to using new technologies to make qipao.
B.She borrowed some symbolic designs from foreign brands.
C.She added some elements from Chinese culture to the design.
D.She learned the tailor techniques in Shenzhen and Hangzhou.
【小题4】What can we infer from the passage about qipao?
A.Qipao is an iconic sign in the fashion industry.
B.Qipao is on its way back to the daily life of Chinese.
C.Qipao enjoys a good reputation in the world.
D.Qipao is seen as a symbol of wealth in modern China.

Being in the midst of a pandemic lockdown can make people feel worried. But nothing has shown this panicky behavior more than storing specifically toilet paper.

Seemingly transcending borders and cultures, people from all over the world, including the US, UK and Japan, have been clearing supermarket shelves mainly for this necessity. But what’s the reason for this sudden toilet paper storing? You can understand panic buying food, but do we really need that much toilet paper?

Steven Taylor, author of the book The Psychology of Pandemics, told the Independent that our toilet paper storing is a product of our disgust. During a pandemic, people’s sensitivity to disgust increases, like when you move aside if someone nearby sneezes.

“Disgust is like an alarm … and what better tool for removing disgusting material than toilet paper. I think this is how it became a conditioned symbol of safety,” he said.

Writing for The Conversation, Niki Edwards of The Queensland University of Technology said, “When people hear about the novel coronavirus, they are afraid of losing control. And toilet paper feels like a way to maintain control over health and cleanliness.”

Another one of the most important reasons behind this toilet paper trend, according to the BBC, is the snowball effect. Due to its reports, both in the news and social media, people naturally ask, “Will there be enough toilet paper for my family and me?” This leads to more people following the crowd and buying toilet paper because of their fear of missing out.

“Fear spreads easily. So when you see people around you buying things in a panicky way, it’s going to make you feel more anxious,” wrote American psychologist Baruch Fischhoff for CNBC.

While there are, of course, selfish people who store just because they can, it’s worth keeping things in perspective. Remember, just as countries are cooperating to find a vaccine, we must cooperate to ensure that everyone has their share of necessities.

【小题1】The underlined word “transcending” in the second paragraph probably means “____”.
A.going beyondB.connecting with
C.getting an understanding ofD.making good use of
【小题2】According to Dr Steven Taylor, what does this toilet paper trend result from?
A.The desire to get rid of disgusting material.B.The fear of losing control over cleanliness.
C.The frequent reporting on toilet paper.D.The selfish side of human nature.
【小题3】Whose words are quoted to explain “the snowball effect”?
A.Steven Taylor’sB.Niki Edwards’
C.Baruch Fischhoff ‘sD.The author’s
【小题4】What is the author’s purpose in writing this text?
A.To explore the bad effects of the toilet paper trend.
B.To explain why people tend to store pile toilet paper.
C.To criticize those people who store toilet paper.
D.To discuss people’s different attitudes toward the toilet paper trend.
【小题5】Which of the following statement do you think the author will probably NOT agree with?
A.The toilet paper storing can relieve people’s anxiety.
B.It’s selfish of those to store too much toilet paper than they need.
C.Panic buying is quite understandable.
D.It’s better for us to stay calm and reasonable so as not to follow the toilet paper trend.

High schools used to teach shop classes and students learned hands-on occupational skills like woodworking. Nowadays, most schools have changed shop classes in favor of academic core subjects. However, one organization doesn’t think that academics and carpentry (木工工艺) have to be separated.

The National Science Foundation STEM Guitar Project is an organization that aims to get students excited about science, math, and the arts all at once, by teaching students how to make a guitar from the beginning.

Experts forecast that technical skills like the ones used in making the guitars could be the most in-demand job in the future, according to The Conversation. Unfortunately, many high schools don’t introduce students to mechanical precision, design, and manufacturing skills, because they are not on standardized tests, and because schools aren’t aware of the future applications of these skills.

But STEM (Science, Technology, Engineering and Mathematics) is really needed to build a guitar. According to The Conversation, it’s impossible to make a guitar without knowing science and math. To space the frets (音品) on the guitar’s neck, guitar designers use a mathematical formula. STEM Guitar Project employee, Nancy Chang, said that “Using that formula to build a guitar you really care about and you want it to turn out and play really well, gives you a really good reason to figure out an equation (方程式) that otherwise would just be something from out of a book, that had no meaning.”

The STEM Guitar Project runs five-day workshops for teachers each summer. At the workshop, teachers learn to make their own guitars, and are given a curriculum, textbooks, materials, and guitar kits to use in their classrooms. Teachers at the workshops report that the opportunity to make a guitar is fun and exciting. Mike Aikens, STEM Guitar Project co-founder, explained that “If you’re exciting teachers you’re for sure going to excite kids”.

Thanks to the STEM Guitar Project, it opens students’ and teachers’ eyes to real-world applications of technical skills, and lets them know that real world math is much more exciting than theoretical concepts.

【小题1】What can students do in the Guitar Project?
A.Practice professional skills with art craftsmen.
B.Develop an interest in maths through making guitars.
C.Promote academic ability for the standardized test.
D.Improve theoretical level to solve practical problems.
【小题2】What does the author intend to show in paragraph 4?
A.The growth of mechanical design skills.
B.The whole process of making a guitar.
C.The help from schools in choosing subjects.
D.The ties between academics and carpentry.
【小题3】What’s Mike Aikens’ attitude towards five-day workshops for teachers?
A.Appreciative.B.Critical.C.Subjective.D.Opposed.
【小题4】What is the best title of the text?
A.Students Learn Technical Skills Via Guitar Project
B.A Guitar Project Wins Most School’s Support
C.Music Offers Kids an Access to Technical Skills
D.The Classroom Will Be a More Amusing Place

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