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题型:阅读理解 题类:常考题 难易度:普通

福建省厦门市2019届高三上学期英语期末考试试卷

阅读理解

    Cao Yuan, a PhD student from China, had two papers published on strange behaviour in atom-thick layers of carbon that have opened up a new field of physics.

    Pablo Jarillo-Herrero's group at MIT was already layering and rotating (旋转) sheets of carbon at different angles when Cao joined the lab in 2014. Cao's job was to find out what happened when one graphene (石墨烯) sheet was twisted only slightly wiht respect to the other, which one theory predicted would thoroughly change the material's behaviour.

    Many physicists doubted the idea. But when Cao set out to create the subtly twisted stacks, he spotted something strange. Exposed to a small electric field and cooled to 1.7 degrees above absolute zero, the graphene—which ordinarily conducts electricity—became an insulator. That by itself was surprising. But the best was yet to come: with a slight change to the field, the twisted sheets became a superconductor, in which electricity flowed without resistance.

    The ability to get atom-thick carbon into a complex electronic state through a simple rotation now has physics demanding to engineer exciting behavior in other twisted 2D materials. Some even hope that graphene could shed light on how more-complex materials superconduct at much higher temperatures. "There are so many things we can do," says Cory Dean, a physicist at Columbia University. "The opportunities at hand now are almost irresistible."

    Hitting graphene's “magic angle”—a rotation between parallel sheets of around 1.1°—involved some trial and error, but Cao was soon able to do it reliably. His experimental skill was extremely important, says his supervisor Jarillo-Herrero. Cao pioneered a method of tearing a single sheet of graphene so that he could create a stack of two layers, from which he could then fine-tune alignment (微调校准).

    Cao loves to take things apart and rebuild them. A heart, he is “a tinkerer”, his supervisor says. On his own time, this means photographing the night sky using homemade cameras and telescopes—pieces of which usually lie across Cao's office. "Every ime I go in, it's a huge mess, with computers taken apart and pieces of telescope all over his desk," says Jarillo-Herrero.

(1)、What is Cao Yuan's achievement?
A、Creating a method of piling carbon. B、Finding the superconductivity of graphene. C、Making equipment to twist graphene. D、Starting research on a new field of physics.
(2)、What do we know from Cory Dean's words?
A、The finding can be applied to all materials. B、It is certain that many new discoveries are on the way. C、The discovery suggests potential for other twisted 2D materials. D、Physicists have been pushed to find more atom-thick carbon layers.
(3)、What does Jarillo-Herrero think is key to Cao Yuan's discovery?
A、His method of tearing sheets. B、His knowledge of physics. C、His curiosity about graphene. D、His skill in experiments.
(4)、What can we infer about Jarillo-Herrero?
A、He is an expert in telescope. B、He thinks highly of Cao Yuan. C、He appreciates messy offices. D、He follows Cao Yuan's research.
举一反三
根据短文理解,选择正确答案。

    A telescope, called Gaia, is being designed by astronomers in Europe, and it couldn't be more different from Pan-STARRS, which is another telescope being designed. While Pan-STARRS will be looking for asteroids (小行星) and comets headed for Earth, Gaia will be looking at our entire galaxy (银河系).

    Gaia is designed to draw a map of the Milky Way, our home galaxy. Just as a map of your town gives you a picture of where things are located, Gaia's map of the galaxy will tell astronomers where the stars are. Over five years, Gaia will observe (观察) about a billion stars and other objects in our galaxy. Each object will be observed about 70 times.

    Gaia will be sent into space connected to a rocket. It contains two telescopes, each focused at a different angle (角度). These two telescopes act like Gaia's “eyes”. The reason why humans can see things in 3D is that we have two eyes focused on the same object, at slightly different angles. By using two telescopes like eyes, Gaia can produce the first 3D map of the positions of the stars it views.

    Gaia, which is to be sent into space, will be a powerful telescope. If you were to use it on Earth, for example, you could stand 600 miles away from your best friends and still get a clear picture of their hair.

    Gaia is one of more than a dozen telescopes being designed by scientists right now. The next generation of telescopes will reveal new parts of our universe that will seem surprising. The universe, with all its planets, stars and other strange objects, is a puzzle with pieces that we can see by using powerful telescopes.

阅读理解

    Anki has introduced Cozmo, a little robot powered by an advanced artificial intelligence. Cozmo promises to be far more interactive(互动的)than any toy robot.

    Cozmo, which can lie in your hand, has a “brain”—technically its CPU—that can process data amazingly fast. In addition Cozmo has a playful personality. He's designed to react to emotions and even ask users to play with him.

    Cozmo is not the first interactive toy to reach the market nor is it the first robot toy. What sets Cozmo apart from the other “smart toys” is that it has greater play value than those toys, which can become repetitious all too quickly.

    “Every interaction with Cozmo is different, so you do not put up with repetitive patterns and responses typically found with other preprogrammed robots,” explained Anki spokesperson Peter Nguyen. Because it has functionality that is similar to that of video games, Cozmo also can receive regular updates, which could extend its playability. Still, Anki has designed this toy to be just that: a toy. It's not an advanced computerized robot. Its software is app-based.

    Cozmo lacks the “traditional” human-like robot form factor of legs, arms and a head. But Cozmo does have an OLED screen / face with blue eyes, which in fact were designed to help it connect with its user.

    “I'm glad my kids are already raised,” said Roger L. Kay, analyst an Endpoint Technologies Associates. “Otherwise, they might become more antisocial if their relationship with Cozmo is more satisfying than those with real people,” said Kay. “Cozmo might encourage kids to learn more about technology or even inspire them to try programming and similar studies,” said Charles King, analyst at Pund-IT.

    Yet this technology does promise to be more than a toy. “It's a pretty cool invention and might have further applications, for example in elder care,” suggested Kay.

阅读下列短文,从每题所给的A、B、C、D四个选项中,选出最佳选项。

    In colleges around the country, most students are also workers.

    The reality of college can be pretty different from the images presented in movies and television. Instead of the students who wake up late, party all the time, and study only before exams, many colleges are full of students with pressing schedules of not just classes and activities, but real jobs, too.

    This isn't a temporary phenomenon. The share of working students has been on the rise since the 1970s, and one-fifth of students work year round. About one-quarter of those who work while attending school have both a full-course load and a full-time job. The arrangement can help pay for tuition (学费) and living costs, obviously. And there's value in it beyond the direct cause: such jobs can also be critical for developing important professional and social skills that make it easier to land a job after graduation. With many employers looking for students with already-developed skill sets, on-the-job training while in college can be the best way to ensure a job later on.

    But it's not all upside. Even full-time work may not completely cover the cost of tuition and living expenses. The study notes that if a student worked a full-time job at the federal minimum wage, they would earn just over $15, 000 each year, certainly not enough to pay for tuition, room, and board at many colleges without some serious financial aid. That means that though they're sacrificing time away from the classroom, many working students will still graduate with at least some debt. And working full time can reduce the chance that students will graduate at all, by cutting into the time available for studying and attending classes.

    There is little reward for attending but not finishing college. Students who wind up leaving school because of difficulty in managing work and class are likely to find themselves stuck in some of the same jobs they might have gotten if they hadn't gone at all. The difficulty of working too much while in school can create a cycle that pushes students further into debt without receiving any of the financial or career benefits.

阅读下列短文,从每题所给的A、B、C、D 四个选项中选出最佳选项。

Wilderness Explorers Center Guide

Welcome to the Wilderness Explorers Center, your gateway to the adventure of nature's wonders! With engaging exhibits, wildlife sightseeing, and natural activities, there's something for everyone to enjoy.

Discover Nature's Treasures

Don't miss the chance to explore our Nature Gift Shop, located near the entrance of the Wilderness Explorers Center. Here, you'll discover a delightful array of eco-friendly gifts, educational books, and unique handicrafts inspired by the natural world.

Enjoy at Forest Café

After a day of exploration, fuel your energy at the Forest Café. Indulge in a selection of delicious snacks, sandwiches, and beverages sourced from local ingredients. Whether you're craving a refreshing drink or a heart y meal, the Forest Café is the perfect spot to relax and unwind.

Ensure the Accessibility

Ensuring that every visitor can fully enjoy their experience is our top priority. That's why we offer wheelchair and stroller rentals at the entrance, making it easy for everyone to explore our center comfortably. Our staff are also available to ensure that all guests feel welcome.

Support the Conservation

Join us in our mission to protect and preserve the natural world for future generations. Your support plays a crucial role in our conservation efforts. Click our website here to learn more about how you can get involved, from donating to becoming a member of our conservation community. Together, we can make a difference in safeguarding the beauty of our planet.

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