A bookseller in Chongqing has been leaving novels on trains and at stations to inspire more commuters(上下班往返的人)to read, after seeing British actress Emma Watson take part in a similar project in London.

    Author and bookstore owner Jiang Lin, 29, randomly placed 40 works along the city's light-rail system on Sunday. Whoever finds a book can read it in public or take it home, but they are encouraged to leave it again on public transportation once they have finished with it. Jiang said, “I considered the needs of commuters," he said. "I hope strangers can feel comforted by the books and feel connected with other readers."

    All 40 books were chosen from Jiang's store, Razor's Edge Book Club, which he opened in the summer, and included fiction and nonfiction, with topics ranging from art and social sciences to philosophy and history Jiang's Books on the Chongqing Light Rail project follows the same model as Books on the Underground, which was started in 2012 and sees “book fairies” leave works on London Tube trains and at stations. Readers are encouraged to share their views on the books. It was revealed on Nov. 1 that Watson, who is best-known for the Harry Potter movie series, is a book fairy.

    “After I read the news about her leaving books on the London Tube, I was so inspired that I immediately decided to do something over the weekend,” Jiang said. However, his decision was so spontaneous that he had no time to make the stickers that are usually placed on each book to identify them as part of the project . Instead, he put a note on the fly page to introduce the concept.

    To his surprise, one of his friends was among those who found his books and posted a picture on WeChat Moments, a social media function on the instant-messaging app. Jiang said more than 20 people have since come onboard and are now working on a more detailed than to spread the love of reading. Although increasing numbers of people read on digital devices, books have not totally gone out of fashion. Jiang mentioned that they needed the support from Chonqing Light Rail Co. to ensure the books to stay there and also hoped the project could be welcomed across the country.

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。

    As more and more schools rush to put digital devices（数码设备）in the hands of every student, many parents are becoming increasingly concerned about the quality of their children's education. The promise of increased student academic（学业上的）achievement through the use of technology hasn't produced any significant results in the past 20 years.

    Researchers at the University of California Los Angeles conducted a study in 2014 to determine if the social skills of elementary students were blocked by screen time. Two groups of sixth grade students were compared. One group was sent to an outdoor camp for one week with no screen time, while the control group live life as normal. After one week, the students at camp had made significant improvements over their peers（同龄人）. The good news is that when we limit access to screen time and give children the opportunity to interact face to face, they quickly become better at reading the emotional state of others. The bad news is that we have a generation of children that struggle with this basic emotional intelligence skill.

    Too much screen time has been linked to childhood obesity, sleep disorders, behavior problems, and academic challenges. But is there a difference between schoolwork and entertainment media?

    When students are using technology for academic work they are more likely to be communicating with peers, working cooperatively, and developing other important skills. However, all these are impossible when students watch entertainment media. They just sit and watch!

    Parents have right to be concerned about their children's screen time at school, but they should begin by discussing the use of digital media at home. Some parents are continuously engaged in their own devices, responding to every ring of their phones, receiving and sending messages. How can they expect their children to do better?

    Despite an advertisement campaign suggesting wall-to-wall special effects, “Bridge of Terabithia” is grounded in reality far more than in fantasy. Adapting Katherine Paterson's award-winning novel, the screenwriters David Paterson and Jeff Stockwell have produced a thoughtful and extremely affecting story of a transformative friendship between two unusually gifted children. The result is a movie whose emotional depth could appeal more to adults than to their children.

    Jess Aarons (Josh Hutcherson) is a sixth grader with four sisters, financially tensed parents and a talent for drawing. An introverted(内向的) kid who is regularly picked on by the school buses, Jess forms a bond with a new student named Leslie (Anna Sophia Robb), a free spirit whose parents, both writers, are fondly neglectful. An attraction between outsiders, their friendship feeds on her words and his pictures; together they create an imaginary kingdom in the woods behind their homes, a world they can control and where their minds can wander free.

    Beautifully capturing a time when a bully in school can occur as large as a monster in a nightmare and the encouragement of a teacher can alter the course of a life, “Bridge to Terabithia” keeps the fantasy in the background to find magic in the everyday. Gabor Csupo directs this, his first feature, like someone close to the pain of being different, fascinated in tiny, perfect details.

    With strong performances from all the leads, “Bridge to Terabithia” is able to handle adult topics with sensitivity. As the emotional landscape darkens, those who haven't read the book may be surprised at the sorrow the filmmakers cause without ever resorting to horror or terror. In other words, your children may cry, but they won't be traumatized so badly.

    Consistently smart and delicate as a spider web, “Bridge to Terabithia” is the kind of children's movie rarely seen nowadays. At a time when many public schools are being forced to cut music and art from the curriculum, the story's insistence on the healing power of a cultivated imagination is both welcome and essential.

    It's a safe bet that a robot made your car and made your computer. Pretty soon, they could be making your bed and breakfast too.

     Increasingly, engineers are saying that robots are going to move out of research departments and into your home. Companies including General Electric are working on designs for small robots. Products like the Roomba, a robot that can clean floors, are flying off the shelves.

     What's behind this new robot revolution? It's partly a matter of technology. Devices that can recognize and respond to a human voice have been developed. There are now a few different ways for robots to move around. They can walk, crawl or ride on wheels. Robots are being made smaller and smaller. They are also becoming more and more able.

     A bigger part of the story is on the demand side. From the day the television remote control was invented, people around the world have searched for new ways to be lazy. Take into consideration that more and more people can afford robots, and the time seems ripe to introduce robots to the ordinary family.

     To be sure, robots that walk on two legs and talk like people are still a long way off. However, robots that do basic housework such as cleaning or gardening are sure to come out soon. One thing is certain—when these robots do come into our homes, it will change things forever.

    Abraham Lincoln, a self-taught lawyer, was elected 16th president of the United States in November 1860, shortly before the outbreak of the Civil War. Lincoln proved to be a smart military strategist and a competent leader: His Emancipation Proclamation(解放宣言) paved the way for slavery's abolition, while his Gettysburg Address stands as one of the most famous speeches in American history. In April 1865, with the Union on the brink of victory, Abraham Lincoln was killed; his untimely death made him a hero to the cause of liberty, and he is widely regarded as one of the greatest presidents in U.S. history.

    On January 20, 1981, Reagan took office. Only 69 days later he was shot by a would-be killer, but quickly recovered and returned to duty. His grace and wit during the dangerous incident caused his popularity to soar.

    At the end of his two terms in office, Ronald Reagan viewed with satisfaction the achievements of his innovative program known as the Reagan Revolution, which aimed to motivate the American people and reduce their reliance upon Government. He felt he had fulfilled his campaign pledge of 1980 to restore “the great, confident roar of American progress and growth and optimism.”

    When George W. Bush, at the age of 54, became the 43rd president of the United States, it was only the second time in American history that a president's son went on to the White House. John Quincy Adams, elected the sixth president in 1824, was the son of John Adams, the second president. While John Adams had brought up his son to be president, George Bush, the 41st president, insisted he was surprised when the eldest of his six children became interested in politics, became governor of Texas, and then went on to the White House.

    Barack Obama served as the 44th President of the United States. His story is the American story — values from the heartland, a middle-class upbringing in a strong family, hard work and education as the means of getting ahead, and the belief that a life so blessed should be lived in service to others.

    With a father from Kenya and a mother from Kansas, President Obama was born in Hawaii on August 4, 1961. He was raised with help from his grandfather, who served in Patton's army, and his grandmother, who worked her way up from the secretarial pool to middle management at a bank.

    Have you ever wondered what the longest word in the English language is? Believe it or not, there's no simple answer to the question. You might think it would be as easy as opening a dictionary and looking for the longest word. However, it's far more complicated (复杂的) than that.

    Over time, many people have suggested many different words for the title of the longest word in English. How can that be? That's because the first thing that people have different opinions on is what should be considered a word. Some of the words were simply made up to be the longest! For example, there is one really famous long word that most kids know. It comes from Disney's movie Mary Poppins: supercalifragilisticexpialidocious, which means wonderful. But since that 34-letter word was made up simply to be sung as a song in a movie, should it count?

    How about long words that actually describe something in the world? Scientists have come up with several possible choices. The name of a virus(病毒) totals 1,185 letters. There's also a protein(蛋白质) whose name totals 1, 909 letters. Should these win the title? "Not so fast!" say some people. Are these words ever actually used? Can they even be pronounced? And are they meaningful just because they are made up to be long?

    If you're wondering about some long words in common English, here are some examples. Those words include uncharacteristically (20 letters), deinstitutionalization(22 letters) and counterrevolutionaries (also 22 letters) Or perhaps the word "smiles" is the longest word in English. Sure, it has only six letters, but there is a "mile between the first and the last letters!