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题型:阅读理解-阅读单选 难度:0.85 引用次数:35 题号:9788160

Washing windows on a skyscraper is a dirty job. Hanging off the side of a building can also be dangerous, notes Oliver Nicholls, 19. So this 12th-grader invented a robot to handle the job.

Some recent incidents inspired his project. In one, a couple of high-rise window washers were standing on a platform that fell down. No one died, but the pair was seriously injured. Oliver also witnessed someone fall and break his leg while cleaning a glass awning (雨篷) over the entrance to a building.

The new robot is about the size of a medium-sized picnic cooler and weighs 12 to15 kilograms. It's designed to hang off the side of a building from ropes, just as current window-washing platforms do. A hose(软管)carries water to the robot. A cable (电缆) delivers it electric power. The computer controls the robot up-and-down movements by adjusting the ropes from which the robot hangs. When the robot needs to move from one window to another, a set of propellers(螺旋桨) starts to work. They push the robot a short distance away from the building, while the ropes slide along a railing(栏杆)to carry the robot over to the next window. Then, as a different set of propellers holds the robot tight against the window, the cleaning cycle repeats. Oliver tested his robot by cleaning sample windows he'd built in his backyard. The robot’s propellers can hold the robot against a building even in winds as high as 45 kilometers per hour, the teen reports. He performed those tests using his family’s leaf blower.

Besides limiting the chance of injury, this window-washing robot could save building owners a bit of money. If commercialized, Oliver estimates it would cost about $11,000. That's about the same cost as hiring a crew to clean a 7-story building. So Oliver suspects his robot might be able to pay for itself after cleaning just one such building.

1. What encouraged Oliver to develop his project?
A.His interest in housework.B.The accidents he experienced.
C.The high costs of washing windowsD.Risks facing high-rise window washers.
2. What do we know about the robot?
A.It carries water itself.B.It is supported by a platform.
C.It hangs from ropes while working.D.It can produce power while working.
3. Why did Oliver test his robot with a leaf blower?
A.To record its working speedB.To see its wind-resistance ability
C.To test whether it could remove the windowsD.To know if it needed a different set of propellers
4. What does the last paragraph imply about the robot?
A.It is costly but time-saving.B.It still has many limitations.
C.It has huge commercial potentialD.It has become a favorite of building owners

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文章大意:这是一篇记叙文。短文叙述了 Sansone发明设计一款不同的发动机的励志故事。

【推荐1】Robert Sansone, the winner of the 2022 George D. Yancopoulos Innovator Award, is a natural born engineer. From robotic hands to high-speed running boots, Sansone has worked on at least sixty engineering projects to date in his spare time. And he’s only 17 years old.

A couple years ago, Sansone came across a video about the advantages and disadvantages of electric cars. It explains that most electric car engines use rare-earth elements, which are costly, both financially and environmentally. In fact, 1kg of the rare-earth materials in question can cost up to several hundred dollars. With that sustainability issue, he wanted to solve it, so he tried and designed a different motor (发动机). His new motor, on the other hand, uses copper, which costs around $8 for 1kg.

The highschooler had heard of a type of electric motor — the Synchronous Reluctance Motor (SRM同步磁阻电动机) — that doesn’t use these rare-earth materials. This kind of motor is currently used for pumps and fans, but it isn’t powerful enough by itself to be used in an electric vehicle. So, Sansone started brainstorming ways he could improve its performance.

For over a year Sansone worked on the motor. It needed to be more efficient and have more rotational (旋转) force. The new motor was made from 3-D printed plastic, copper wires and a steel rotor and tested using a variety of meters to measure power. Sansone is now working on version 16 of his motor, which he plans to build out of stronger materials so he can test it at higher revolutions per minute.

As a rising senior, Sansone has dreamed of attending Massachusetts Institute of Technology (MIT). His winnings from competitions will go toward college tuition. If his motor continues to perform with high speed and efficiency, he says he’ll move forward and cooperate with car companies. He hopes that one day his motor will be the design of choice for electric vehicles.

1. What is the author’s purpose in writing paragraph 2?
A.To explain the use of electric car engines.
B.To stress the cost of the rare-earth materials.
C.To introduce a video of previous electric cars.
D.To show Sansone’s inspiration for his new motor.
2. Which aspect does Sansone mainly want to improve in SRM?
A.Its cost.B.Its size.C.Its power.D.Its weight.
3. What can we learn from the last paragraph?
A.He is studying in the MIT.B.He aims high for his motor.
C.He has started a motor company.D.He will enter a new competition.
4. Which of the following best describes Robert Sansone?
A.Gifted and determined.B.Caring and outgoing.
C.Humorous and energetic.D.Generous and hard-working.
2023-07-09更新 | 90次组卷
阅读理解-阅读单选(约340词) | 较易 (0.85)
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【推荐2】In Japan, there is now a cafe that uses robots to attend to its guests. But that’s not the incredible part! Behind these robot servers are “pilots”, people with disabilities, who control them remotely.

Opened up in 2018, this café was initially meant to operate for just two weeks while its creators raised money for the future of this project. Later, encouraged by all the positive feedback from customers and employees, Ory Laboratory, the company behind this project, decided to open a permanent outpost. This is how, in June 2021, the “Avatar Robot Café DAWN ver. β” opened in Nihonbashi, Tokyo.

The pilots behind the robots are often severely disabled, with conditions like amyotrophic lateral sclerosis(ALS). They can control the robots from wherever they are, be they at home or in hospitals where they may be bedridden or in a wheelchair.

The robots are about four feet tall. Their 14-joint motors allow them to do things like carrying trays and picking up plates and cups. Consequently, they are able to welcome diners, take orders, deliver food and drinks, and even clear tables like regular waitstaff. To enable communication between the pilots and the guests, the robots also have a built-in camera, a microphone, and speakers. Finally, as if these features weren’t already quite impressive, the robots can be controlled through eye movements as well. This then allow seven immobilized people to work at this café.

Undoubtedly, people with severe disabilities are often restricted in their movements. This then poses a huge hurdle in their abilities to be employed or participate in the world. At the same time, other people might find it difficult to commute to work due to responsibilities such as childcare. For all such individuals, Ory Laboratory hopes that their robots can provide novel means of social participation. This way, their robots can give a brand-new meaning to remote working.

1. What’s special about this café?
A.Its robot waiters.B.Its management mode.
C.Its original founding purpose.D.Its employees controlling robot waiters.
2. What was the original purpose of this cafe?
A.To develop more branches.
B.To collect customer feedback.
C.To raise money for the company’s project.
D.To provide employment opportunities for the disabled.
3. What is the main idea of paragraph 4?
A.The features of the robot waiters.B.The popularity the robot waiters gain.
C.The rules robot waiters have to follow.D.The ways of controlling the robot waiters.
4. How does the writer feel about the future of this café?
A.Indifferent.B.Hopeful.C.Disappointed.D.Uncertain.
2022-12-20更新 | 135次组卷
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【推荐3】Hands-on basketball

The boy was only nine years old when he designed a “hands-on basketball”. Chris Haas had the idea when he saw his friends miss lots of baskets. His basketball has painted hands on it. The hands show you where to put your hands when you throw the ball. Today people use his invention around the world.

Wristies

At age 10, Kathryn Gregory was playing outside one day in the cold. Her wrists (手腕) began to hurt from the cold so she decided to find a way to keep both her hands and wrists warm during the winter. In 1994, she invented Wristies: fuzzy sleeves (毛绒袖子) that can be worn underneath gloves to protect your wrists from the cold. She worked with her mom to get the idea off the ground and now the product is sold worldwide.

Makin’ Bacon

Abbey Fleck was 8 years old when she noticed how much time her parents spent soaking up bacon fat (吸干培根油脂) after cooking. She realized that it might be easier to hang bacon while it cooks. That way you wouldn’t need paper towels and it would even make the bacon healthier. She then worked with her father to design a dish that hangs bacon while it cooks. Now people can see her invention in many supermarkets.

Braille

Louis Braille had an accident when he was three. The accident left him blind. At that time, it was hard for blind children to read. They had to touch raised letters. But it was difficult to tell a Q from an O, an R from a B, and so on. When he was fifteen, Louis invented an alphabet (字母表) that used raised dots. The Braille alphabet was a big success!

1. Whose invention is related to sports?
A.Chris Haas’.B.Kathryn Gregory’s.
C.Abbey Fleck’s.D.Louis Braille’s.
2. What can we learn about Makin’ Bacon?
A.It was invented in 1994.
B.It was named after its inventor.
C.It helps people eat more healthily.
D.It reduces the cases of cooking accidents.
3. What do the four inventions have in common?
A.They were invented by kids.
B.They came into being by chance.
C.They were designed to help others.
D.They brought wealth to their inventors.
2022-05-05更新 | 110次组卷
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