Here are Important Travel Notices from United Airlines, March 20, 2016 7:12 AM. Information is updated as it is received.

    ⒈Travel and the Zika virus

    If you have a ticket for travel to a country affected by the Zika virus(as listed on the CDC website) and have concerns, please contact the United Customer Contact Center with any questions or changes to your reservation. Customers advised to avoid the affected regions based on CDC guidance may change their destination or travel date without a fee or may choose to receive a refund(退款) if their tickets were booked before February 29,2016. The new travel date must be within the validity of the ticket. Additional charges may apply if there is a difference in fare for the new travel route.

    ⒉Longer lines at security checkpoints

    Procedural changes at TSA checkpoints throughout the United States may result in longer lines at security checkpoints. Please plan accordingly and allow for extra time at the airport. The TSA advises arriving at the airport two hours before your flight for US travel and three hours before for international travel. To save time at security, we encourage you to visit www.tsa.gov.com and apply for TSA pre-check.

    ⒊Notice for flight departing the European Union, Norway and Switzerland

EU Regulation 261/2004 requires airlines to provide the following notice: If you are not allowed to board or if your flight is canceled or delayed for at least two hours, ask at the check-in counter or boarding gate for the form, stating your rights, particularly about compensation assistance.

    The online takeaway industry is growing in China along with the rapid development of the Internet economy. But environmental activists complain that the huge volume of plastic utensils (用具), wrapping and containers presents a great challenge to the environment, and that the heavy use of throwaway wooden chopsticks is reducing natural resources.

    On September 1, the Beijing No.4 Intermediate People's Court accepted a lawsuit filed by the Chongqing Green Volunteer League, an environmental non-government organization (NGO), against the country's three largest food delivery platforms—Baidu Waimai, Ele.me and Meituan. The NGO stated that the companies failed to provide customers with the choice to not receive throwaway plastic utensils along with their food deliveries. Meanwhile, these utensils have created large amounts of rubbish and caused serious ecological damage.

    In response, both Meituan and Ele.me, which acquired Baidu Waimai in August, have promised to take measures to reduce plastic waste. Meituan announced that it would appoint a chief environmental officer to oversee environmental issues from plastic waste and upgrade its smartphone app to provide consumers with the option of ordering food without single-use chopsticks, spoons or napkins. Ele.me followed by offering a similar choice and putting forward a plan to introduce suppliers of degradable (可降解的) plastic utensils to restaurants in the long term.

    Is there a possible way out? Combined efforts by delivery platforms, consumers, restaurants and government departments are required to address plastic waste pollution.

    For platforms, promoting environmental protection and introducing this idea to consumers are a meaningful move. Moreover, in the future, they should also make strict rules on the use of plastic utensils. For example, no more than one plastic bag should be used to wrap soup dishes, and all plastic products should be degradable. It is a long and difficult task for them, and the recent reactions from Ele.me and Meituan are just beginnings.

    Considering most takeout food packaging is thrown into garbage bins and then taken away along with other household garbage, sorting of waste also becomes more important. Government departments could play a major role in this, and by recycling some materials, waste pollution could be reduced and resources saved. Furthermore, there have been growing calls that the government should also invest more in developing degradable plastic products or environmentally friendly alternatives.

    Though consumers enjoy the convenience yet also suffer exposure to the pollution, many of them have paid little attention to the plastic waste problem. Environmental groups suggest that consumers change their habits a little by using their own utensils and dishes and refusing unnecessary plastic containers.

    When Johnnie Martin was in the second grade in high school, one day a psychologist of the school called him into his office.

    “Johnnie, I've made a very careful study of you. And I feel sorry to have to tell you… Though you have worked very hard, it has not helped. You're just not fit for it.”

    The boy buried his face in his hands, “This will be hard on my parents,” he said. “Their one idea is for me to be a college man.”

    The psychologist laid his hand on the boy's shoulder and said, “People have different kinds of talents. Some day you will find what your special gift is and when you do, you will make your parents very proud of you.”

    Johnnie never went back to school. Jobs were scarce in town, but he managed to keep busy mowing the lawns of the householders and puttering in their flowerbeds. Before long he discovered he had an eye for color.

    One day while he was downtown, he happened to notice a stretch of unused land behind the city hall. Chance or fate or whatever you may like to call it brought one of the town's aldermen（市政委员会委员）round the corner just at that moment. The boy said, “I can make a garden out of this dump, if you'll let me do it.”

    “The town's got no money for it,” said the alderman.

    “I don't want any money for it,” said the boy. “I just want to do it.”

    The alderman was shocked to find someone who did not want money. He took Johnnie into an office, and when the young man came out he had the authority to clean up the public eyesore. Before long the old dump became a little beautiful park.

    It was also a kind of show window for Johnnie. People saw the result of his skill and knew him as a natural landscape gardener.

    That was twenty-five years ago. Today Johnnie is the head of a successful business in landscape gardening. His aging parents are proud of Johnnie, for he is not only a success, but he has also made his part of the world a lovelier place to live in.

    In beautiful rural Montana lies the town of Livingston. Around half the students in the Livingston School District qualify for free or reduced-price lunches, according to local educator Rachael Jones, known as "Farmer Jones". She is the director of the Livingston Farm to School program, which uses the district's two greenhouses and four gardens to grow food that supplements school meals while offering kids hands-on lessons. Jones said, "In many places around the country, if you can't pay for your school meal, you don't eat. Well, here, we don't turn anyone away."

    The town's school district and community members started the program eight years ago. It's part of the National Farm to School Network, which aims to increase access to local food and nutrition education across the country. Jones, who attended public school in Livingston as a kid, has headed up the local program since 2014. Farm to School enriches curriculums in all of the schools through garden lessons, cafeteria and kitchen lessons, and classroom lessons.

    Research has shown that healthy school meals can enhance academic performance, including improved test scores. Though the Farm to School program is not aimed solely at lower-income students, Jones said, "Such kids are more likely to eat lunch provided by the school. Eventually she wants to get healthy, affordable meals on the plate of every child in Livingston.

    It is important for kids to understand where their food comes from. That's a life changing experience for them. Jones said," When I grew up a big force in my life was my grandma Ethel. She taught me from a really early age the value of growing my own food. I worked in her gardens with her and somehow, through all of those experiences —eating her tomatoes and canning pickles with her —it really built up my trust and knowledge in food systems. I'm so thankful for her!"

    Put an ice cube(小冰块) from your fridge into a glass of water. You have a piece of string(线) 10 centimeters long. The problem is to take out that piece of ice with the help of the string. But you must not touch the ice with your fingers (手指).

    You may ask your friends to try to do that when you are having dinner together. There is a saltcellar on the table. You must use salt when you carry out this experiment.

    First you put the string across the piece of ice. Then put some salt on the ice. Salt makes ice melt(融化). The ice round the string will begin to melt. But when it melts, it will lose heat. The cold ice cube will make the salt water freeze(冻结) again.

    After a minute or two you may raise(提起) the piece of string and with it you will raise your piece of ice!

    This experiment can be very useful to you. If, for example, there is ice near the door of your house, you must use very much salt to melt all the ice. If you don't put enough salt, the water will freeze again.

    A young woman turns around and around quickly, and jumps high. In the background, a young girl reads a rejection (拒绝) letter from a ballet school. "You have the wrong body for ballet," it says, "and at thirteen, you are too old." This was one of the most popular advertisements (广告) of 2014 and it describes American ballet Theatre's principal (主要的) dancer Misty Copeland.

    This was not a real letter. But Copeland says it is very similar to letters from her childhood. While many dancers start at the age of three. Copeland only began to study ballet in 1995 as a thirteen-year-old.

    People often told her that she was too old, or that she didn't have the perfect body type (She is only 157 cm tall). Her family moved a lot, and it was sometimes difficult for her to attend ballet classes. But Copeland loved dancing and did not want to give up. She stayed with her ballet teacher during the week and spent time with her family only at the weekend. This was a difficult life, but she worked hard and won her first national competition when she was fourteen years old. Copeland joined the American Ballet Theatre in 2000 and performed in many ballets over the next few years. In 2007, she became a solo (单独的) performer, and in 2015 she became its principal dancer.

    Copeland is now a dancer, author and Broadway performer. She also stars in the 2015 film A Ballerina's Tale. So what's next? According to Copeland, anything is possible: "My career (职业) really is just now beginning."