At thirteen, I was diagnosed（诊断） with kind of attention disorder. It made school difficult for me. When everyone else in the class was focusing on tasks, I could not.

    In my first literature class, Mrs. Smith asked us to read a story and then write on it, all within 45 minutes. I raised my hand right away and said, “Mrs. Smith, you see, the doctor said I have attention problems. I might not be able to do it.”

    She glanced down at me through her glasses, “You are not different from your classmates, young man.”

    I tried, but I didn't finish the reading when the bell rang. I had to take it home. In the quietness of my bedroom, the story suddenly all became clear to me. It was about a blind person, Louis Braille. He lived in a time when the blind couldn't get much education. But Louis didn't give up. Instead, he invented a reading system of raised dots（点）, which opened up a whole new world of knowledge to the blind.

    Wasn't I the “blind” in my class, being made to learn like the “sighted” students? My thoughts spilled out and my pen started to dance. I completed the task within 40 minutes. Indeed, I was no different from others; I just needed a quieter place. If Louis could find his way out of his problems, why should I ever give up?

    I didn't expect anything when I handled in my paper to Mrs. Smith, so it was quite a surprise when it came back to me the next day- with an “A” on it. At the bottom of the paper were these words: “See what you can do when you keep trying?”

    Americans always attach great weight to the business of the country. President Coolidge's statement, “the business of America is business.” Still points to an important truth today—that business institutions have more prestige(威望) in American society than any other kind of organization, including the government. Why do business institutions possess this great prestige?

    One reason is that Americans view business as being more firmly based on the ideal of competition than other institutions in society. Since competition is seen as the major source of progress and prosperity by most Americans, competitive business institutions are respected. Competition is not only good in itself, it is the means by which other basic American values such as individual freedom, equality of opportunity, and hard work are protected.

    Competition protects the freedom of the individual by ensuring that there is no monopoly (垄断、垄断者) of power. In contrast to one, all-powerful government, many businesses compete against each other for profits. Theoretically, if one business tries to take unfair advantage of its customers, it will lose to competing business which treats its customers more fairly. Where many businesses compete for the customers' dollar, they cannot afford to treat them like inferiors(下属) or slaves.

    A contrast is often made between business, which is competitive, and government, which is a monopoly. Because is competitive, many Americans believe that it is more supportive of freedom than government, even though government leaders are elected by the people and business leaders are not. Many Americans believes, then, that competition is as important, or even more important, than democracy in preserving freedom.

    Competition in business is also believed to strengthen the ideal of equality of opportunity. Competition is seen as an open and fair where success goes to the swiftest person regardless of his or her social class background. Competitive success is commonly seen as the American alternation to social rank based on family background. Business is therefore world as an expression of the idea of equality of opportunity in America rather than the aristocratic(贵族的) idea of inherited privilege in many other countries

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    The UK's largest coffee seller, Costa Coffee, has promised to recycle half a billion coffee cups a year by 2020 to deal with plastic waste. The move, which means recycling the same number of cups it puts onto the market, would account for a big percentage out of the 2.5 billion takeaway cups thrown away across the country every year.

    Though marked as recyclable, most of paper coffee cups end up on landfill(垃圾场) or being burned due to the plastic lining(涂层) used to make them waterproof. By paying waste collectors to take coffee cups to certain places, Costa hopes to increase the rate at which cups are recycled. Finally, all a customer will need to do to make sure their cup avoids landfill is throw it into a standard recycling bin.

    Started following the Environmental Audit Committee's report recommending ministers take action to deal with coffee cup waste, the campaign has pushed for action from governments and businesses and promoted possible solutions. Starbucks has promised ￡7m to develop a "fully recyclable cup" following pressure from campaigners, while Waitrose, a supermarket, has planned to stop using disposable(一次性的) coffee cups from its stores by autumn.

    The company has entered into a partnership with five national waste collectors – Veolia, Biffa, Suez, Grundon and First Mile – that between them cover public spaces across the UK including hospitals, universities and transport hubs. The coffee company is also working with paper factories to make sure their products are recycled effectively. James Cropper, for example, has plans to upgrade 500 million cups a year to create plastic-free packaging. By building more partnerships with waste contractors in every area, Costa means to hit its half a billion mark within two years.

    With one report showing the number of takeaway drink cups thrown away in the UK is set to rise by a third by 2030, and the government recently failing to tax some coffee to discourage cup use, it falls to businesses to act on the huge amount of waste from their products.

    Commenting on the announcement, Environment Minister Therese Coffey said: "Congratulations to Costa on taking this significant step to help coffee lovers do the right thing and increase recycling. We all have a responsibility to our environment and this is a significant step by a British business which should increase the number of disposable coffee cups we recycle in this country." "We want to help companies become plastic free and through our 25 Year Environment Plan we are putting in place the aims to encourage all of us to play our part in ending the pollution of plastic waste in our natural environment."

    “Sesame Street” has been called “the longest street in the world”. That is because the television program by that name can now be seen in so many parts of the world. That program became one of American's exports soon after it went on the air in New York in 1969.

    In the United States more than six million children watch the program regularly. The viewers include more than half the nation's pre-school children, from every kind of economic, racial, and geographical group.

    Although some educators object to certain elements in the program, parents praise it highly. Many teachers also consider it a great help, though some teachers find that problems arise when first graders who have learned from “Sesame Street” are in the same class with children who have not watched the program.

    Tests have shown that children from all racial, geographical, and economic backgrounds have benefited from watching it. Those who watch it five times a week learn more than occasional（偶然的）viewers. In the US the program is shown at different hours during the week in order to increase the number of children who can watch it regularly.

    The programs all use songs, stories, jokes, and pictures to give children a basic understanding of numbers, letters and human relationships. But there are some differences. For example, the Spanish program, produced in Mexico City, devotes more time to teaching whole words than to teaching separate letters.

    Why has “Sesame Street” been so much more successful than other children's shows? Many reasons have been suggested. People mention the educational theories（理论）of its creators, the support by the government and private（私人的）businesses, and the skillful use of a variety of TV tricks. Perhaps an equally important reason is that mothers watch it along with their children. This is partly because famous adult stars often appear on it. But the best reason for the success of the program may be that it makes every child watching feel able to learn. The child finds himself learning, and he wants to learn more.

    On a clear night, you can see a sky paced with stars. But you can't see planets orbiting any of these stars, even with the strongest Earth—based telescopes. Astronomers reported that they discovered seven Earth—sized planets orbiting a nearby star called TRAPPIST – 1 in February. They had to rely on indirect evidence to tell them that the planets are there. By doing some math, they figured out the number of planets and the distance of their orbits.

    TRAPPIST – 1 is a red dwarf （红矮星）, much smaller than our sun, but larger than Jupiter (木星). If the sun were the size of a basketball, TRAPPIST – 1would be the size of a gold ball. This star is one of our closest neighbors, just like the moon to the earth in space.

    When astronomers using Earth-based telescopes to study TRAPPIST – 1,they noticed that every once in a while, it became slightly dim（昏暗）. They decided that a planet must be passing in front of the star, blocking part of the light. This dimming would come and go as the planet orbited the star, passing alternately (交替地) behind and in front of the star regularly.

    By making careful observations, astronomers expected to get a rough idea of the planet's size from the pattern of dimming light. But the light level changed often and not at evenly spaced (均匀间隔的) times. The astronomers had to conclude they were looking at more than one planet! To get additional data, NASA's spritzer Space Telescope measured TRAPPIST –1's brightness nearly continuously for 20 days, catching 34 crossings of planets in front of the star. Sorting through the mess of data, the astronomers found that the innermost planet completes its orbit in 1.5 Earth days, while the outermost planet takes 20 days. Once you know how long it takes each planet to complete an orbit, you can work out how far it is from the star compared with the other planets.

    The TRAPPIST – 1 planets are not alone. So far, astronomers have found more than 3,400 planets that orbit other stars.

    WeChat, the Chinese social media smartphone app, saw an increase in user numbers of 41 percent year on year to 500 million at the end of last year, in a sign that parent company Tencent is extending its reach for the mobile Internet. As one of the largest Internet integrated service providers in Chinaand one of the most Internet users in China, Tencent's profit grew 24 percent to RMB 20.98 billion per year, slightly higher than forecasts, driven mainly by online gaming profits. It is unclear how much WeChat contributed to Tencent's profits but the app's growth is a strong indicator of the company's long-term health as it tries to adjust its business to be more suitable for mobile devices.

    "We extended our leadership in games and online media, and made breakthroughs in emerging platforms such as online security and mobile payments." Ma Huateng, Tencent chairman, said in a statement. WeChat is the second highest ranked social app in China, behind QQ, Tencent's another chatting app, which claimed to have 815 million registered monthly users at the end of 2014.

    Tencent has been unwilling to earn money through WeChat by flooding it with advertising, which could influence the users' experience. But this is expected to change. Some analysts anticipated(预期) that advertising would be introduced on a large scale later this year. Early attempts to test ads on the service have not always gone smoothly. After a BMW ad was introduced on some users' feedbacks in January, many users who were not targeted by the brand's marketing complained of "discrimination" by Tencent's data mining algorithm(数据挖掘算法). They claimed it unfairly treated them as not wealthy or successful enough to view the BMW ad.