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题型:阅读理解-阅读单选 难度:0.65 引用次数:83 题号:10468156

Engineers at the University of California San Diego have developed a new method that doesn't require any special equipment and works in just minutes to create soft, flexible,3D-prnted robots.

The innovation comes from rethinking the way soft robots are built : instead of figuring out how to add soft materials to a rigid robot body, the UC San Diego researcher started with a soft body and added rigid features to key components. The strictures were inspired by insect exoskeletons,which have both soft and rigid parts — the researchers called their creations

“flexoskeletons (柔性外骨骼)”.The new method allows for the construction of soft components for robots in a small bit of the time previously needed and for a small bit of the cost.

“We hope that these flexoskeletons will lead to the creation of a new class of soft robots, ” said Nick Gravish, a mechanical engineering professor at the Jacobs School of Engineering at the UC San Diego and the paper ’ s senior author. “ We want to make soft robots easier to build for researchers all over the world. ”

The new method makes it possible to build large groups of flexoskeleton robots with little hand assembly (装配)as well as assemble a library of Lego-like components so that robot parts can be easily swapped.

Researchers detail their work in the April 7 issue of the journal Soft Robotics. The team plans to make their designs available to researchers at other institutions as well as high schools.

One flexoskeleton component takes 10 minutes to print and costs less than $1. Flexokeleton printing can be done on most low-cost commercially available printers. Printing and assembling a whole robot takes under two hours.

The final goal is to create an assembly line that prints whole flexoskeleton robots without any need for hand assembly. These small robots could do as much work as one massive robot on its own — or more.

1. What does Paragraph 2 mainly talk about?
A.The origin of the new method.
B.The function of the new method.
C.The advantages of the new method.
D.The cost of the new method.
2. What’s Nick’s attitude towards flexoskeletons?
A.Indifferent.B.Skeptical.
C.Curious.D.Hopeful.
3. What will researchers intend to do with flexoskeletons?
A.Benefit moss students.
B.Produce a lot of flexoskeleton robots.
C.Build robots by hand.
D.Create many larger ones.
4. What can be the best title for the text?
A.New Robos Made of Special Equipment and Materials
B.A New Method of Building Giant,Soft and Flexible Robots
C.Flexoskeletons Make Soft Robots Faster and Cheaper to Make
D.Flexoskeletons Create Lots of Soft Robots with Hand Assembly

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【推荐1】New Orleans native Keiana Cave, at the age of 18, is one of the youngest Americans

named in the 2017 Forbes 30 Under 30 list. The college girl developed a molecule(分子) for dispersing (分解) oil, which she presently produces through her company Mare.

Forbes, one of the most popular magazines in the US, released its annual 30 Under 30 lists on January 3, 2017. With 20 different categories (类别) from music to law and policy, in each area. Forbes presented 30 up-and-coming young groundbreakers (创始者) on its official website.

Cave is comparatively much younger than those selected to her category, but this by no means discounts her exceptional ability. To   see her daughter's name on the list, Vanessa Cave-Herazo was surprised, but she said she knew it was coming because “Keiana has always been destined(注定) for great things.

After learning about the negative effects of the oil dispersant( 分散剂) used in the Gulf Coast during the B. P. oil spill (泄露) cleanup, Cave decided to create her own dispersant. Cave raised $ 1.2 million from Chevron, an American multinational energy company, to develop her molecule in 20 16.

"It aims at certain poisons in the sea water,and breaks them up into water,”she said of herdispersant. “It is one of the few legal oil dispersants, " Cave added.

Despite this achievement, Cave believes she has not quite yet reached success. She regards success as the amount of influence she has made on the community and the world.The creation of themolecule is an achievement,but she believes seeing her work being put to use will truly be her success.

While Cave may have made the Forbes 30 Under 30 list early in her career, she is never going to slow down. She will make an effort to increase the growth of Mare, which is devoted to developing molecules to solve major social issues.

"Right now, Mare consists of this one molecule that I hope to expand and live up to the Forbes name," Cave said.

1. What caused Cave to bring forward her invention?
A.Her mother's encouragement.
B.An imperfect dispersant in use.
C.The huge market of dispersants.
D.Her wish to be awarded by Forbes.
2. What can we say about Cave?
A.She has a very good sense of humor.
B.She finds it hard to manage her company.
C.She has a strong sense of social responsibility.
D.She is fed up with new studies about molecules.
3. What will Cave's next step be?
A.To create legal oil dispersants.
B.To develop her company Mare.
C.To raise money for her project.
D.To enter Chevron after graduation.
4. What is the main purpose of the text?
A.To announce a competition
B.To describe a new company.
C.To advertise (an oil dispersant.
D.To report on a teenage inventor.
2017-12-18更新 | 45次组卷
阅读理解-阅读单选(约310词) | 适中 (0.65)

【推荐2】Visitors to Henn-na, a restaurant outside Nagasaki, Japan, are greeted by a unique sight: their food being prepared by a row of humanoid robots. The "head chef", named Andrew, is using his two long arms:he stirs batter(面糊)in a metal bowl, then pours it onto a hot grill. In a nearby hotel, robots check guests into their rooms and help with their luggage.

CEO Hideo Sawada, who runs the restaurant and the hotel, predicts that 70 percent of the jobs at Japan's hotels will be automated in the next five years. He said, "Since you can work them 24 hours a day, and they don't need vacation, in the end it's more cost-efficient to use the robot."

This is seemingly worrying. In fact, in America, automation(自动化)helps the food-service and accommodation sector continue to grow. In the company Panera, because of its new kiosks, an app that allows online ordering, the chain is now processing more orders overall, which means it needs more total workers to meet consumers' demand. Starbucks customers who use the chain's app return more frequently than those who don't, the company has said, and the greater efficiency that online ordering allows has increased sales at busy stores (luring peak hours. Starbucks employed 8% more people in the U. S. in 2016 than it did in 2015, the year it began to use the app.

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1. What makes Japan's Henn-na Hotel unique?
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4. What is the author's attitude towards the future of automation?
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【推荐3】To deal with a big environmental problem, chemists have been thinking small. Really small. Their new tiny robot has one purpose: to help clean up tiny bits of plastic (塑料的) polluting waterways across the world.

Each new microrobot is no bigger than the tip of a sharpened pencil. They are magnetic (磁的) and shaped like stars. When sunlight hits them, they produce chemical reactions (化学反应) that push them through water in a specific direction. When they find a piece of plastic, they catch it and start to break it down. When the lights go out, they let go and are free to be used again. In a new study, the scientists reported that these robots can either break down a piece of microplastic or hold onto it to be collected later.

Chemist Martin Pumera at the Czech University of Chemistry and Technology in Prague led the project. He studies ways to build microrobots. He says: “Let’s make them do something useful.”

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Pumera says his final goal is to make cheap and environmentally-friendly robots that can be used anywhere in the world. He thought that at first they might be most useful in plants that treat wastewater. There they can remove plastic before it reaches open water.

In lab experiments, the star-shaped swimmers catch each of four different types of plastic. And after a week exposed (暴露) to light, the robots had reduced the weight of the plastics. It wasn’t much — only by 3 percent. But that was a sign they were breaking the plastic down.

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The researchers also have not yet shown how safe this system is for the environment, although Pumera says that’s their next goal. The first real-world test will be in a waste water-treatment plant.

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C.To stress the importance of protecting the water.
D.To explain a serious environmental problem.
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