试题

试题 试卷

logo

题型:阅读理解 题类:真题 难易度:困难

                                                                            

    Transparent animals let light pass through their bodies the same way light passes through a window. These animals typically live between 

the surface of the ocean and a depth of about 3,300 feet—as far as most light can reach. Most of them are extremely delicate and can be 

damaged by a simple touch. Sonke  Johnsen, a scientist in biology, says, “These animals live through their life alone. They never

touch anything unless they're eating it, or unless something is eating them.”

And they are as clear as glass. How does an animal become see-through? It's trickier than you might think.

      The objects around you are visible because they interact with light. Light typically travels in a straight line. But some materials slow and

 scatter(散射) light, bouncing it away from its original path. Others absorb light, stopping it dead in its tracks. Both scattering and absorption

 make an object look different from other objects around it, so you can see it easily.

But a transparent object doesn't absorb or scatter light, at least not very much, Light can pass through it without bending or stopping.

That means a transparent object doesn't look very different from the surrounding air or water. You don't see it —you see the things

behind it.

   To become transparent, an animal needs to keep its body from absorbing or scattering light. Living materials can stop light because they

contain pigments(色素) that absorb specific colors of light. But a transparent animal doesn't have pigments, so its tissues won't absorb

 light. According to  Johnsen, avoiding absorption is actually easy. The real challenge is preventing light from scattering.

Animals are built of many different materials—skin, fat, and more—and light moves through each at a different speed. Every time light

moves into a material with a new speed, it bends and scatters.Transparent animals use different tricks to fight scattering. Some animals are

simply very small or extremely flat. Without much tissue to scatter light, it is easier to be see--through. Others build a large, clear mass of

 non-living jelly-lie(果冻状的)material and spread themselves over it .

    Larger transparent animals have the biggest challenge, because they have to make all the different tissues in their bodies slow down light 

exactly as much as water does. They need to look uniform. But how they're doing it is still unknown. One thing is clear for these larger animals, staying transparent is an active process. When they die, they turn a non-transparent milky white.

(1)、According to Paragraph 1, transparent animals_______

A、stay in groups  B、can be easily damaged C、appear only in deep ocean D、are beautiful creatures
(2)、The underlined word “dead” in Paragraph 3 means__________.

A、silently  B、gradually C、regularly  D、completely
(3)、One way for an animal to become transparent is to ________.

A、 change the direction of light travel  B、gather materials to scatter light. C、avoid the absorption of light D、 grow bigger to stop light.
(4)、The last paragraph tells us that larger transparent animals________.

A、move more slowly in deep water B、 stay see-through even after death C、 produce more tissues for their survival D、take effective action to reduce Light spreading
举一反三
阅读理解

    A guiding principle for master cellist Yo-Yo Ma is that “the intersection(交汇) of cultures is where new things appear.” Certainly his biography is an intersection of cultures. He was born to Chinese parents in Paris, France; both his parents were musicians. When he was seven, his family moved to the United States. Gifted for his age, Ma attended Juilliard, the world famous music institute. He then chose to earn a liberal arts degree at Harvard rather than focusing only on music.

    Even in his earliest performing years, Yo-Yo Ma had a strong belief that it was important to share music with all kinds of people. Stories are told about how he once performed in the hallway of a large building for people who were unable to get tickets to his concert. He remained interested in making music accessible to diverse audiences and furthered his interest in different cultures when he visited the Bushmen of the Kalahari. He developed a vehicle to further these ideals when he founded the Silk Road Project.

    As he has said, the Silk Road is a metaphor(隐喻) for a number of things: as the Internet of ancient times, the routes were used for trade, by religious people, adventurers, scientists, storytellers. Everything from algebra to Islam moved along the Silk Road. It's the local-global thing. In the cultural world, you want to make sure that voices don't get lost, that rich traditions continue to live, without becoming common.

    This lesson explores the philosophy behind Yo-Yo Ma's founding of the Silk Road Ensemble(乐团), his belief that the arts, and particularly music, can make the world better, and that through cooperation, one can both preserve tradition and shape cultural evolution. Students also explore their own attitudes toward the arts, writing reflective essays on how the arts have played a role in their own lives.

阅读理解

    Kung fu is one of the most popular topics of discussion among foreigners talking about China. As a discipline of kung fu with the largest number of practitioners in China, Tai Chi is gaining popularity worldwide. Tai Chi is sweeping the world thanks to its deep cultural roots and the health benefits coming from practicing it.

    The philosophy of Tai Chi features the concept of yin and yang, which is typical of Confucianism and Taoism. Tai Chi also takes in ideas from traditional Chinese medicine, including anatomy (解剖学) and physiology (生理学). It is a practice that couples hardness with softness, and it is a perfect example of traditional Chinese culture.

    Through lasting practice, learners begin to feel the positive impact (影响) of Tai Chi on their health. Unlike kung fu practices that focus on attacking and defending against enemies, Tai Chi focuses more on shaping good characters and keeping fit. By practicing Tai Chi, people will feel an improvement in their physical and psychological health by promoting a balance between yin and yang within their bodies. This is similar to Western medicine's improving people's self-healing ability and immune system.

    Tai Chi is playing an important role in presenting Chinese culture to the rest of the world, acting like a bridge between China and other countries. Recent years have seen a lot of international communication on Tai Chi. In provinces like Hebei, Henan, Shanxi and Shaanxi, where Tai Chi teaching and learning are particularly active, local governments and non-governmental institutions often organize activities and competitions for learners and fans to attend and participate in. Large sporting events hosted by China such as the Asian Games and Olympics have featured Tai Chi performances or contests. These activities have opened a window for the outside world to know more about Tai Chi, paving the way for its overseas wide spread.

    Today, Tai Chi not only belongs to China, but also to the whole world and to everyone who loves it.

阅读理解

    The World Happiness Report, a United Nations agency report, measures (估量) how happy people are, and why. Norway is the happiest place on earth—beating neighbour Denmark from the number one position.

    Denmark, Iceland, Switzerland and Finland are among the top five, while the Central African Republic came last. Western Europe and North America took up most of the places at the top of table, with the US and UK at 14th and 19th respectively.

    The World Happiness Report mainly depends on asking a simple question of more than 1,000 people every year in more than 150 countries. “Imagine a ladder, with steps numbered from 0 at the bottom to 10 at the top,” the question asks. “The top of the ladder is the best possible life for you and the bottom of the ladder is the worst possible life for you. On which step of the ladder would you say you personally feel you stand at this time?”

    The average (平均的) result is the country's score—from Norway's 7.54 to the central African Republic's 2.69. But the report also tries to explain why one country is happier than another. It looks at reasons including economic strength, social support, freedom of choice, and generosity.

    This year's report also has a text titled “restoring (恢复) American happiness”, which examines why happiness levels in the United States are falling, despite continually-increasing economic improvement. “The United States can and should raise happiness by solving American's social problems—rising inequality and distrust—rather than focusing mainly on economic growth,” the authors said.

    Jeffrey Sachs, the director of the Sustainable Development Solutions Network, which published the report, said President Donald Trump's policies were likely to make things worse.

阅读理解

    A survey said the average Asian dad spent one minute a day with his children. I was shocked. I mean, a whole minute? Every day? Get real. Once a week maybe. The fact is, many Asian males are terrible at kid-related things. In fact, I am one of them.

    Child-rearing (养育) doesn't come naturally to guys. My mother knew the names of our teachers, best friends and crushes. My dad was only vaguely aware there were short people sharing the apartment. My mother bought healthy fresh food at the market every day. My dad would only go shopping when there was nothing in the fridge except a jar of butter. Then he'd buy beer. My mother always knew the right questions to ask our teachers. My dad would ask my English teacher if she could get us a discount on school fees. My mother served kid food to kids. My dad added chili sauce to everything, including our baby food.

    The truth is, mothers have superpowers. My son fell off a wall once and hurt himself all over. I demanded someone bring me a computer so I could google what to do. My wife ignored me and did some sort of chanting (咏诵) phrase such as" Mummy kiss it better," and cured 17 separate injuries in less than 15 seconds.

    Yes, mothers are incredible people, but they are not always correct. Yet honesty forces me to record the fact that mothers only know best 99.99 percent of the time. Here are some famous slip-ups.

    The mother of Bill Gates:" If you're going to drop out of college and hang out with your stupid friends, don't come running to me when you find yourself penniless." The mother of Albert Einstein:" When you grow up, you'll find that sitting around thinking about the nature of time and space won't pay the grocery bills." The mother of George W. Bush: "You'll never be like your dad, who became President of the United States and started his own war."

阅读下面短文,从每题所给的A、B、C、D四个选项中选出最佳选项。

5 books I loved in 2018

By Bill Gates

    A great read is the perfect gift and I think everyone could use a few more books in their lives. My book list covers various topics, including an autobiography on learning throughout a life, a deep search on autonomous weapons (武器), a thriller about the fall of a once­promising company and a guide about meditation (冥想)­there's something for everyone.

    The Head space Guide to Meditation and Mindfulness, by Andy Puddicombe. The book starts with Puddicombe's personal journey from a university student to a Buddhist monk and then becomes an entertaining explainer on how to meditate. If you're thinking about trying mindfulness, this is the perfect introduction.

    Army of None, by Paul Scharre. It's an extremely complicated topic, but Scharre offers clear explanations and presents both the advantages and disadvantages of machine­driven warfare. His fluency with the subject should come as no surprise: he's an ex­soldier who helped draw up the U.S. government's policy on autonomous weapons.

    Bad Blood, by John Carreyrou. Carreyrou gives you the definitive insider's look at the rise and fall of a company. I found myself unable to put it down once I started. This book has everything: magazine cover stories, ruined family relationships, and the failure of a company once valued at nearly $10 billion.

    21 Lessons for the 21st Century, by Yuval Noah Harari. I'm a big fan of everything Harari has written, and his latest is no exception. If 2018 has left you stressed out by the state of the world, 21 Lessons offers a helpful framework for processing the news and thinking about the challenges we face.

    Educated, by Tara West over. Tara never went to school or visited a doctor until she left home at 17. I loved this life story of a young woman whose thirst for learning was so strong that she ended up getting a P.h.D. from Cambridge University.

阅读理解

    When you watch a movie these days, it's difficult to tell what's real and what's created by using computers. Visual effects can even change how movies are made.

    Almost anything that can be imagined by a director can now become reality in the world of movies. "We're really not limited by the technology, '' said David Smith, the CEO of Sony Pictures Imageworks. Mr Smith said that with today's technology, the digital world was more realistic than ever before. For The Amazing Spider-Man 2, Mr Smith's team created a Times Square that was exactly like the real one in New York. "If there are lights inside the stores that are lighting areas inside the store we put those lights there," said Mr Smith.

    But there was still one challenge for visual effects artists, said Paul Debevec of the University of Southern California Institute for Creative Technologies. "We're still trying to figure out how to perfect the human face in movies, " said Debevec. He said the movie — The Curious Case of Benjamin Button was still one of the best examples of computer generated movies, as actor Brad Pitt could be from an aged man to a baby in the movie.

    Mr Debevec added that besides changing the look of an actor's face, there could be another use for digital faces in the entertainment. Last year, effects artists created a digital face of the Asian pop singer Teresa Teng who was dead. Fans could still see and hear the concert on YouTube.

    Mr Debevec expects directors will start to use more virtual production techniques, like those seen in the movie Avatar. Mr Debevec says that with virtual production, there won't be a need for so many people behind the scenes. But visual effects artists agree, even with advanced technology, there is no replacement for a real actor showing a character in a movie.

返回首页

试题篮