Some people are pessimistic(悲观的) when they think about the future. They say that, a hundred years from now, we will have used up most of the earth's resources. We will have made our seas so dirty that we will not be able to eat fish from them. There will be so many people in the world that we will have to use all the countryside for housing; there will be no farmland left.

    Other people have a different idea about the future. In their view, the city of the future will be a huge pyramid-shaped(金字塔形的) building, which will be floating on the surface of the sea. About 5,000 families will live there, and there will also be schools, shops in it.

In a hundred years' time, people will not need to use oil. They will heat their homes with power from the sun.

    Think of space. Perhaps a station will be set up on the moon; people will be able to visit the moon as tourists. They may even spend their holidays in space, travelling from planet to planet.

What an interesting picture!

    Many people don't think about the future. “I don't care. I'll be dead. ”they say. But it is our duty to care because the world of a hundred years' time will be the world of our children's and their children after them.

    Life may have evolved on at least three planets within a newly discovered solar system 39 light years from Earth. Astronomers at the NASA have discovered no less than seven roughly Earth-sized worlds orbiting a dwarf star in the system. Scientists had previously identified a tiny number of "exoplanets", which are believed to have the qualities needed to support life. However, the new system contains an unprecedented(前所未有) number of Earth-sized, probably rocky planets, and is being acknowledged as an "accelerated leap forward" in the search for extraterrestrial (外星球的)life.

    Three of the new planets are said to be particularly promising because there might exist oceans. Thomas Zurbuchen, associate administrator of NASA, told a press conference in Washington: "This gives us a hint that finding a second Earth is not a matter of 'if', but 'when'."

    The planets were discovered using NASA's Spitzer Space Telescope, which was able to track how fast each of the planets crossed the star Trappist-l and completed an orbit. From this the research team calculated how far the planets were from their star, and therefore how likely they are to be habitable.

    NASA's Hubble Space Telescope is already being used to search for atmospheres around the planets. Future telescopes, including the proposed European Extremely Large Telescope and the James Webb Space Telescope, may be powerful enough to discover markers of life, such as oxygen in the atmospheres of exoplanets.

    Astronomers believe there could be as many as 40 billion potentially habitable worlds in our galaxy, the Milky Way. Prof Zurbuchen said that now was a "gold-rush phase" in the search for these exoplanets.

根据短文内容，选择最佳答案，并将选定答案的字母标号填在题前括号内。

    Recently some articles claim the word “selfie” as one of the most annoying words. But I'd like to offer that maybe it isn't not so bad.

    The “selfie” is used to describe the self taken photo, often from a smart phone. Women and men alike adorn their Instagram, Facebook and Twitter accounts with these pictures, sometimes with puckered lips or large smiles. In fact, the selfie has become so widely known that over 31 million photos on Instagram are captioned with the selfie.

    Let's think about it. Someone takes about 10 seizes each time they do, and they only end up posting one or two of those. They pick the one that they feel makes them look the best. Isn't that beautiful? In that one picture, someone has even him or herself confidence.

    Self-image is important. In society today, we are so often consumed with what society tells us is perfect. But maybe, with that one selfie, we feel like we fit that bill. We feel handsome, beautiful, confident, smart, happy and content. For that moment, everything bad or terrible that has ever happened to us is erased, because that smile or that pucker is what gives us the determination to love ourselves.

    I saw a spoken word poem recently and the young man said: If I ask you what you love the answers will most likely roll off your tongue. You love to read. You love to write. You love birds, music, tattoos… Your mom, your brother, your sister, your daughter, your best friend, your dog. How long do you think you could go on and on before you said “I love myself”？

    That statement hit me like a ton of bricks. I've struggled with confidence all of my life. I still do. And in no way am I saying that taking a selfie is a gateway to that confidence. However, the selfie does deserve some credit for allowing individuals to express themselves. Pamela Rutledge agrees, stating, “There are many more photographs available now of real people than models.”

    There's a good chance something you've bought online has been in the hands of a "picker" first. These are the workers in warehouses(仓库)who pick, pack and ship all those things we're ordering.

    At Amazon and other companies, they're working side by side with robots. Experts say while the robots are replacing some human workers, the machines aren't quite ready to take over completely.

    When a robot finds its storage unit, it slides underneath, lifts it up and then delivers it to a worker 一 they're called pickers. On a recent day, the computer told a picker to grab what looked like a fantasy board (棋盘)game. The picker found it, canned it and placed it on the conveyor belt.

    ^"In a traditional fulfillment center where the associate would walk to the different items, it can take hours to fulfill a customer order." Robinson says.

    Now, with the help of robots, that task takes minutes 一 and fewer humans.

So is this a sign we're entering a new industrial revolution?

    "It's definitely going to take over a lot of jobs." says Karen Myers, a scientist at SRI, one of Silicon Valley's oldest research centers.

    At the same time, she says, we're running against the limits of technology. Take "the picker" at the Amazon fulfillment center. Myers says those skills are proving to be uniquely human.

    "Our fingers are incredibly flexible and the current generation of robotic operators, they're getting much_, much better," she says. "But they're just not quite there yet."

    There's also the robot's brain.

    Remember that board game the Amazon worker was looking for? She could barely see the box filled into the storage bin — but she could tell it was a board game. Robots can't do that.

    Technologists say that, increasingly, humans will work side by side with robots — instead of robots working alone.

    Amazon says robots and humans enabled the Tracy warehouse to fulfill customer orders faster. That means more customers and more human workers.

    Martha had been working for Miller Laboratories for two years, but she was not happy there. Nothing significant had happened in the way of promotions or salary increases. Martha felt that her supervisor, a younger and less experienced person than she, did not like her. In fact, the supervisor often said unpleasant things to her.

    One day, while talking with her friend Maria, she mentioned how discouraged she was. Maria gave her the name of a cousin of hers who was director of Human Resources Department for a large chemical company. Martha called him the next day and set up an interview on her lunch hour.

    During the interview, Mr. Petri said, "You're just the kind of person we need here. You're being wasted in your other job. Give me a call in a day or two. I'm sure we can find a place for you in our organization." Martha was so happy that she almost danced out of the building.

    That afternoon, Ruth Kenny, her supervisor, saw that Martha had come in ten minutes late from her lunch hour and she said, "Oh, so you finally decided to come back to work today?"

    This was the last straw. She could not take another insult. Besides, Mr. Petri was right: she was being wasted in this job.

    "Look," she said angrily, "if you don't like the way I work, I don't need to stay here. I'll go where I'm appreciated! Goodbye!" She took up her things and stormed out of the office.

    That night she called Maria and told her what had happened and then asked Maria, "What do you think?"

    "Well," said Maria carefully, "are you sure about the other job?"

    "Well, not exactly, but..."

    Maria continued, "Will you be able to get a recommendation from Ms. Kenny if you need one?"

    "A recommendation?…from Ms. Kenny?" hesitated Martha, in a worried tone.

    "Martha, I hope you didn't burn your bridges," Maria said. "I think I would have handled it differently."

    A video of a three-year-old girl being kicked by her own mother during a photo shot went viral (疯狂传播) on Thursday, indicating China's under per forma nee in regulating the emerging child modeling industry.

    The girl, known as Niu Niu, was physically abused by her mother in several videos. The videos have annoyed Chinese media and Internet users alike. Many netizens and scholars call for local authorities to carry out further investigations into possible child abuse.

    In response to the public outcry (强烈抗议), Niu Niu's mother issued an apology via Sina Wei bo on Thursday, condemning accusations of abuse. She noted that she was merely guiding her daughter for better shots and the girl is well looked after.

    Despite her apology, many E-shops which used Niu Niu's images for brand promotion have canceled their cooperation with the mother, while over 110 well-known child garment shops on Taobao have signed up for a campaign to provide better protection for child models.

    "It is necessary to adopt comprehensive laws and regulations to further protect the kids, preventing their parents and companies from exploiting (利用) them," Fang Zhiqing, a lawyer and child protection expert, said.

    Niu Niu is not alone. In Zhili, a small town in Zhejiang province, thousands of children from across China are taken here by their parents to seize the chance of fame. With a population of 450,000. Zhili has over 13,000 manufacturers of child clothing. In 2017, the town earned over 7 billion yuan by selling do thing for children online, thus providing opportunities for child models.

    "China's current advertisement law isn't workable when it comes to the industry of child modeling, as it lacks clear supervision measures and clear legal punishment." Fang added. "It is important to issue new laws which regulate child modeling."