City people usually think they are a lot smarter than country people. They often laugh at simple country ways. But people do not laugh at country music. It is one of the most popular kinds of music in the United States today.

    Perhaps it is so popular because it is about simple but strong human feelings and events—love, sadness, good times and bad times, it tells real life stories and sounds the way people really talk. As life becomes more and more complicated(复杂的), it is good to hear music about ordinary people.

    Country music, sometimes called country western, comes from two kinds of music. One is the traditional music of the people in the Appalachian Mountains in the eastern United States. The other is traditional cowboy music from the West. The singers usually play the guitars, and in the 1920s they started using electric guitars.

    At first city people said country music was low-class. It was popular mostly in the South. But during World War Ⅱ, thousands of Southerners went to the Northeast and Midwest to work in the factories. They took their music with them. Soldiers from the rest of the country went to army camps in the South. They learned to like country music. Slowly it became popular all over the country.

    Today country music is popular everywhere in the United States and Canada, in small towns and in New York City, among black and white, and among educated and uneducated people. About 1,200 radio stations broadcast country music twenty-four hours a day. People sing it in their languages. The music that started with cowboys and poor farmers is now popular all over the world.

    As is known to us, Washington University in St. Louis became the first college in the United States to ban (禁止) selling bottled water in 2009. Since then, more than a dozen small colleges and schools have done the same. The ban isn't because the schools don't want students to have easy access to water. Instead, the goal is to encourage students to bring reusable bottles to save money and, more importantly, to save the environment.

    Many people believe that producing and using bottled water not only wastes money but also harms the environment. They say that bottled water is unnecessary because public water supplies in the U.S. are among the best in the world. These people believe that water fountains and reusable bottles with easy access to filling stations are a better choice.

    But the makers of bottled water argue that plastic bottles make up a small portion of the nation's total waste. They say it's unfair to single out (单独挑出) their product when so many other items are packaged in plastic containers, and what's more, water is a healthy choice compared to some sodas and juices that are also sold at school.

    What do you think: Should sales of bottled water be banned from schools? We want to hear your opinion. Write a 200-word response. Send it to tfkasks4you@timeforkids.com. Your response may be published in a future issue of Time For Kids. Please include your grade level and contact information for your parent or teacher if you want your response to be published. The deadline (截止时间) for responding is August 31, 2012.

    Machines equipped with artificial intelligence (AI) have performed better than human beings in a high-level test of reading comprehension. Two natural language processing tools received higher test scores than humans in recent exams.

    One of the tools is a product of the American software maker Microsoft. The other was created by the Chinese online seller Alibaba Group. The company said that a deep-learning model developed by its Institute of Data Science of Technologies was the first to beat a human score in the reading comprehension test.

    The test is called the Stanford Question Answering Dataset. It was developed by researchers at Stanford University in California. It has over 100,000 questions and answers. They are based on information found in over 500 stories from the Wikipedia website. The answers to all the questions come from the reading material.

    The AI-powered machines were tested on whether they could provide exact answers to the questions after processing large amounts of information.

    Alibaba said its deep neural (神经的) network model received an “Exact Match” score of 82.44 on the Stanford test. Microsoft reported that a team at Microsoft Research Asia had a score of 82.65. It said the human score on the same questions and answers was 82.304. Many research organizations also appeared on the list—all with scores below 82.

    Alibaba said it has already used its reading comprehension model in different parts of its business. For example, the company is using machines to answer many incoming telephone calls from customers. The company says in the future, the technology could enable machines to guide visitors through museums or provide advice to medical patients.

    Microsoft noted that, overall, people are still much better than machines at understanding the complexity and nuances (细微差别) of language.

    The 2019 Beijing Horticultural Expo, the largest of its kind, has chosen the theme "Live Green, Live Better". The expo, opened on April 29 in Yanqing District of Beijing, is scheduled to last for 162 days until October 7.

    Tickets available

    *Standard day ticket

    *Designated day ticket

    *Discounted ticket

    *Group ticket

    Designated days

    *Labor Day holiday (May 1-4)

    *Dragon Boat Festival holiday (June 7-9)

    *Mid-Autumn Festival holiday (Sept 13-15)

    *National Day holiday (Oct 1-7)

    Tickets prices

    *Standard day ticket: 120 yuan

    *Ordinary designated day ticket: 160 yuan

    *Discounted standard day ticket: 80 yuan

    *Discounted designated day ticket: 120 yuan

    Tickets are free for children under the age of six or shorter than 130 centimeters. Discounted tickets are available for those with disabilities, seniors (people aged at 60 or above), children, students and PLA soldiers.

    Where to buy

    Visitors can buy or book tickets from two online agents, seven travel agencies, or three event channels—the event WeChat account, the event app or Onsite ticket kiosks.

Opening hours

Requirements

    Buying tickets for Expo 2019 Beijing requires real-name registration, and all visitors are required to input information from their ID cards (or valid passports, mainland travel permits for Hong Kong and Macao residents, and mainland travel permits for Taiwan residents) to buy or book tickets online.

    Last year, when our three-year-old great-granddaughter Kylie was taken to see Santa Claus, she made sure to give him her wish list of toys. A week later, she ran into a different Santa in a mall. He stopped to ask what she wanted for Christmas. Kylie was surprised and let him know: "If you can't remember what I told you last week, how are you going to remember on Christmas Eve?!"

(Mary Paul, Milwaukee, Wisconsin)

    As my son Mike and I drove to the mall, we passed a Salvation Army Santa ringing his bell. "Mike," I said, "there's Santa!" He shook his head. "That's just some guy in a Santa suit," he said. It saddened me to think that maybe my son no longer believed in Santa, and we drove the rest of the way in silence. At the mall, we spotted another Santa greeting young believers. Suddenly, Mike took off toward him. Turning back to me, he shouted. "Now, there's the real Santa!"

(Michael E. Fahey, Huntley, Illinois)

    We immigrated to America from China when I was six. Because I was shy and didn't speak English, I had few friends. My days were spent at home with my brother. Sometimes we'd help our neighbor Mr. Mueller pull weeds. One Christmas Day, there was a knock at the door. Grandma opened it, and there stood a big fellow in red with a snow-white beard, laughing, "Ho, ho, ho!" He handed out presents and made us laugh. I had so much fun. It was years later when I learned that our special Santa was our neighbor Mr. Mueller.

(Joanne Tang, Litchfield Park, Arizona)

    Many students ask for advice about improving their English. There are three basic questions.

    The first question is about real English. Li Hao from Hubei wrote, "I enjoy watching English films and listening to real English songs. But it takes a long time. What do you think?"

    This is a great way to learn English! Talk about the film or song with your friends, and guess the meaning of the new words. Just enjoy yourself!

    The second question is about speaking. Sam, form Suzhou wrote, "Our school has a foreign teacher. But I'm shy and can't speak to her. What should I do?"

    When I visit China, lots of people in the street say, "Hello! How are you? Where are you from? Do you like China?" These are good questions to start a conversation. Many people are shy when they speak English, so before you begin, takes deep breath and smile! Smiling always helps.

    The third question is about vocabulary. Oliver, from Anhui wrote, "I want to remember all the new words. I write them down, but I forget them quickly. What should I do? Try to remember eight or ten words a day. Write them on pieces of paper and place them in your bedroom. Say the words when you see them, and change them every day. And when you're shopping, how about counting the English words, or saying the English names for everything you see?