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题型:阅读理解-阅读单选 难度:0.65 引用次数:43 题号:10837416

Scientists have found a potentially habitable(可居住的)planet and its star outside our Solar System are more similar to the Earth and our Sun than any other known planet-star pair. For now, the planet candidate(候选)is known as KOI-456.04. If its existence is confirmed by other telescopes, the planet would join a group of about 4,000 known planets outside our Solar System.

“It's the combination of its size less — than — double that of the Earth and its solar-type host star that makes it so special and familiar” Ren6 Heller, the lead author of the new study, said in a press release. That means it could potentially host life.

To be considered habitable, planets must orbit a stable star that keeps a temperature suitable for liquid water. The vast majority of identified Earth-like planets don't meet the conditions required for life to exist. They give off either too weak light or high-energy flames that can fry the planets around them. The star that KOI-456.04 orbits is about 1.1 times the size of the Sun, with a surface temperature of only 300 degrees Celsius less than the Sun. The star also sends out visible light, like our Sun does. Plus, KOI-456.04 is less — than — double the size of the Earth, which could mean its atmospheric conditions are similar to ours. If KOI-456.04 s atmosphere is like the Earths — meaning it has a mild greenhouse effect, then its average surface temperature would be about 5 degrees Celsius, compared to the Earth's average of 15 degrees Celsius, according to the Max Planck Institute .

The system is just over 3,000 light-years away from our Solar System. Future space telescopes could study the planet candidate further. NASA, the European Space Agency, and the Canadian Space Agency plan to launch(发射)the James Webb space telescope in 2021. The European Space Agency's PLATO space telescope, scheduled to launch in 2026, will focus on finding Earth-like planets orbiting Sun-like stars.

1. What makes the newly-found planet special?
A.Its strange name.B.Its extremely large size.
C.Its potential to host life.D.Its relationship with the Sun.
2. What does the underlined word “orbit” mean in paragraph 3?
A.Move around.B.Stick to.
C.Knock into.D.Depend on.
3. Which of the following do the scientists care while studying KOI-456.04?
A.What kind of energy its host star provides.
B.Whether its atmosphere is similar to the Earth's.
C.How many agencies are willing to join in the study.
D.Why its surface temperature is lower than the Earth's.

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文章大意:本文是一篇说明文。文章介绍科学家发明了一种蟑螂机器人。这种半昆虫半机器的蟑螂可以进入危险区域,监测环境或执行搜索和救援任务。

【推荐1】While it may sound like something crawling out of your horrible dreams, cyborg cockroaches (蟑螂机器人) have arrived as friends rather than enemies.

Scientists in Japan have designed a new remote-controlled insect, equipped with a battery “backpack” powered by solar panels. The cockroach, which is part insect and part machine, is intended to enter dangerous areas, monitor the environment or take on search and rescue missions without needing to be recharged.

Famously able to survive a nuclear war, cockroaches have been the inspiration for a number of technologies in recent years. Different teams of scientists have designed remote-controlled robo-bugs that can climb walls, carry objects and find humans during search-and-rescue missions.

The cockroaches are still alive, but wires attached to their two “cerci” (尾蚴) send electrical impulses that cause the insect to move right or left. A battery is necessary for the sending and receiving these electrical signals, which needs to be charged up. While it’s possible to build docking (对接) stations for recharging the battery, the need to return and recharge could disrupt time-tight missions.

The team wanted to create a more practical version that did not need to return to a docking station when it ran out of power. Therefore, they designed a solar cell that could constantly ensure that the cockroach stays charged while it works. However, cockroaches have a limited surface area available for all the components necessary to move its legs and keep it powered. The solution was to design a special “backpack” that could carry both the wireless leg-control module and rechargeable lithium polymer battery. This was attached to the top of the insect on its thorax (胸腹), and was 3D printed to fit perfectly to the curved surface of the Madagascar cockroach. It allowed for this electronic device to be stably installed on the insect for over a month.

1. What are the functions of cyborg cockroaches?
①Climbing walls.   ②Entering unsafe areas.   ③Foretelling risks.
④Rescuing humans. ⑤Generating Power.   ⑥Monitoring the environment.
A.①②③B.②③⑤C.③④⑥D.②④⑥
2. What is the meaning of the underlined word “disrupt” in Paragraph 4?
A.Interrupt.B.Extend.C.Execute.D.Shorten.
3. What is the key factor in controlling a cyborg cockroach remotely?
A.The size of a cockroach.B.The leg-control module.
C.The lifespan of a cockroach.D.The energy harvesting device.
4. What’s the main idea of this text?
A.Cockroaches are the inspiration of inventions.
B.The technology of solar panels is widely used.
C.Search-and-rescue can’t be emphasized too much.
D.Scientists have created a remote-controlled cyborg cockroach.
2023-06-05更新 | 347次组卷
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【推荐2】A solar tree is a structure like a tree that generates solar energy using photovoltaic panels (太阳能光伏板). It helps solve an urgent global challenge: Replacing greenhouse gas-emitting energy sources like oil and gas with renewable energy. But the power generation potential of solar trees is relatively limited, and their primary purpose is to raise public awareness about renewable energy by getting people to notice and interact with solar energy in new ways.

Solar trees generally have a firm metal, plastic, or stone base that extends up and out into “branches” on which solar panels are mounted. Beyond this basic structure, there is great diversity in the design of solar tree units. The solar tree’s photovoltaic “leaves” absorb sunlight, converting it into electricity that is conducted down through the trunk-like central pillar of the structure to an inside battery. Many designs feature rotating (旋转的) panels that can move throughout the day in order to obtain the greatest amount of sunlight.

Solar trees help power homes, businesses, and public services. They can create shade to help reduce the urban heat island effect and provide shelter in severe weather such as rainstorms and heatwaves, creating greater urban adapting ability in the face of climate change. They also enhance public spaces, providing charging stations, and powering streetlights.

In comparison to other kinds of ground-mounted solar panel devices, solar trees don’t require much land. They make solar energy generation possible in areas with little land that can’t support vast solar arrays, as well as places that lack sufficient rooftop space for panels. However, solar panels are much cheaper than solar trees at present and have far greater energy generation capacity. Therefore, present solar tree designs often serve as a extra source rather than as a primary energy source.

At present, solar trees aren’t designed as large-scale solar projects, which limits their ability to contribute to the low-carbon energy transition. Still, their varied designs are appealing. This makes solar trees effective at displaying and thereby educating people about solar energy, and promoting a business or organization’s commitment to renewable energy.

1. What is the main purpose of building solar trees?
A.To beautify the urban environment.B.To draw public attention to solar energy.
C.To replace non-renewable energy resources.D.To provide charging services in emergencies.
2. What do we know about a solar tree?
A.It stores energy in its own battery.
B.It can adjust its height automatically.
C.It is made of environmentally friendly materials.
D.It transforms sunlight into electricity by its metal base.
3. What does the third paragraph mainly talk about?
A.The design features of solar trees.B.The ways of saving energy in cities.
C.The benefits of solar trees to humans.D.The difficulties of promoting solar trees.
4. What is the advantage of solar trees over other ground-mounted solar panel devices?
A.They occupy much less land.B.They are cheaper to manufacture.
C.They are more effective in generating energy.D.They can work in various weather conditions.
2024-02-28更新 | 131次组卷
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【推荐3】The new social robots, including Jibo, Cozmo, Kuri and Meccano M.A.X., bear some resemblance to assistants like Apple’s Siri, but these robots come with something more. They are designed to win us over not with their smarts but with their personality. They are sold as companions that do more than talk to us. Time magazine hailed (称赞) the robots that “could fundamentally reshape how we interact with machines.” But is reshaping how we interact with machines a good thing, especially for children?

Some researchers in favor of the robots don’t see a problem with this. People have relationships with many kinds of things. Some say robots are just another thing with which we can have relationships. To support their argument, roboticists sometimes point to how children deal with toy dolls. Children animate (赋予…生命) dolls and turn them into imaginary friends. Jibo, in a sense, will be one more imaginary friend, and arguably a more intelligent and fun one.

Getting attached to dolls and sociable machines is different, though. Today’s robots tell children that they have emotions, friendships, even dreams to share. In reality, the whole goal of the robots is emotional trickery. For instance, Cozmo the robot needs to be fed, repaired and played with. Boris Sofman, the chief executive of Anki, the company behind Cozmo, says that the idea is to create “a deeper and deeper emotional connection ... And if you neglect him, you feel the pain of that.” What is the point of this, exactly? What does it mean to feel the pain of neglecting something that feels no pain at being neglected, or to feel anger at being neglected by something that doesn’t even know it is neglecting you?

This should not be our only concern. It is troubling that these robots try to empathize with children. Empathy allows us to put ourselves in the place of others, to know what they are feeling. Robots, however, have no emotions to share, and they cannot put themselves in our place. No matter what robotic creatures “say” or squeak, they don’t understand our emotional lives. They present themselves as empathy machines, but they are missing the essential equipment. They have not been born, they don’t know pain, or death, or fear. Robot thinking may be thinking, but robot feeling is never feeling, and robot love is never love.

What is also troubling is that children take robots’ behavior to indicate feelings. When the robots interact with them, children take this as evidence that the robots like them, and when robots don’t work when needed, children also take it personally. Their relationships with the robots affect their self-esteem (自尊). In one study, an 8-year-old boy concluded that the robot stopped talking to him because the robot liked his brothers better.

For so long, we dreamed of artificial intelligence offering us not only simple help but conversation and care. Now that our dream is becoming real, it is time to deal with the emotional downside of living with robots that “feel.”

1. How are the new social robots different from Siri?
A.They are intended to teach children how to talk.
B.They are designed to attract people with their smarts.
C.Their main function is to evaluate children’s personality.
D.They have a new way to communicate with human beings.
2. In Paragraph 3 Cozmo is used as an example to show that the social robots ______.
A.are deeply connected with human beings
B.are unable to build a real relationship with children
C.are so advanced that they can feel the pain of human beings
D.are not good enough to carry out the instructions of children
3. The underlined phrase “essential equipment” in Paragraph 4 refers to ______.
A.emotionB.pain
C.fearD.thinking
4. Which of the following shows the development of ideas in the passage?
I: Introduction       P: Point       Sp: Sub-point (次要点)   C: Conclusion
A.B.
C.D.
2019-09-27更新 | 498次组卷
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