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      The meaning of silence varies among cultural groups. Silences may be thoughtful, or they may be empty when a person has nothing to say. A silence in a conversation may also show stubbornness, or worry. Silence may be viewed by some cultural groups as extremely uncomfortable; therefore attempts may be made to fill every gap(间隙)with conversation. Persons in other cultural groups value silence and view it as necessary for understanding a person's needs.

        Many Native Americans value silence and feel it is a basic part of communicating among people, just as some traditional Chinese and Thai persons do. Therefore, when a person from one of these cultures is speaking and suddenly stops, what maybe implied(暗示) is that the person wants the listener to consider what has been said before continuing. In these cultures, silence is a call for reflection.

        Other cultures may use silence in other ways, particularly when dealing with conflicts among people or in relationships of people with different amounts of power. For example, Russian, French, and Spanish persons may use silence to show agreement between parties about the topic under discussion. However, Mexicans may use silence when instructions are given by a person in authority rather than be rude to that person by arguing with him or her. In still another use, persons in Asian cultures may view silence as a sign of respect, particularly to an elder or a person in authority.

Nurses and other care-givers need to be aware of the possible meanings of silence when they come across the personal anxiety their patients may be experiencing. Nurses should recognize their own personal and cultural construction of silence so that a patient's silence is not interrupted too early or allowed to go on unnecessarily. A nurse who understands the healing(治愈) value of silence can use this understanding to assist in the care of patients from their own and from other cultures.

    There was a story many years ago of a school teacher—Mrs. Thompson. She told the children on the first day that she loved them all the same. But that was a lie. There in the first row was a little boy named Teddy Stoddard. He did not play well with the other children and he always needed a bath. She did not like him.

    Then Mrs. Thompson got to know that Teddy was actually a very good boy before the death of his mother. Mrs. Thompson was ashamed of herself. She felt even worse when, like all her other students, Teddy brought her a Christmas present too. It was his mother's perfume(香水).

    Teddy said, “Mrs. Thompson, today you smell just like my Mom used to.” After the children left she cried for at least an hour. On that very day, she stopped teaching reading, writing and math. Instead, she began to teach children.

    Mrs. Thompson paid particular attention to Teddy. The boy's mind seemed to come alive. The more she encouraged him, the faster he improved. By the end of the sixth grade, Teddy had become one of the smartest children in the class.

    Six years went by before she got a note from Teddy. He wrote that he had finished high school, third in his class, and she was still the best teacher he ever had in his whole life. He went to college. Mrs. Thompson got two more letters from him with the last one signed, Theodore F.Stoddard, M.D. (医学博士)

    The story doesn't end there. On his wedding day, Dr Stoddard whispered in Mrs. Thompson's ear, “Thank you, Mrs. Thompson, for believing in me. You made me feel important and showed me that I could make a difference.”

    Mrs. Thompson, with tears in her eyes, whispered back, “Teddy, you have it all wrong. You were the one who taught me that I could make a difference. I didn't know how to teach until I met you.”

    Plastic is easy, convenient, cheap and long-lasting, but it does great harm to the environment.

    Since plastic entered mass production, 8 billion tons have been produced – and we aren't very good at recycling. By 2015, 6,945 tons of plastic waste had formed, with around 9 percent of it getting recycled. About 79 percent of it ends up in landfills or around the environment, including the ocean. We may end up drowning in plastic before long.

    Chemists at Colorado State University have found a polymer（聚酯）that has many of the qualities of plastics – it's light, strong, durable and heat-resistant – but that can be changed back to its original small-molecule（分子）state for complete recycling. Even after being recycled, the polymer can be turned back into its plastic-like state, and this can be done quickly and cheaply.

    This new polymer has all the good qualities of plastics, yet it is relatively easy to make and to recycle. Making it requires room temperature conditions, a short reaction time to bond the monomer（单体）into polymers and only a small amount of the catalyst（催化剂）remains in the end product. It has a high molecular weight, stands up to heat and generally behaves like plastic. Recycling it requires similarly little effort. Mild lab conditions are required and so is a catalyst. Once applied, the polymers are once again monomers in a matter of minutes and can be used to create another product.

    But don't get too excited about this just yet. Scientists stressed that the polymer isn't ready for mass products just yet. There's still plenty of development to do, including making it more economical to produce and recycle.

    Held in Valencia, La Tomatina is a tomato-throwing activity that causes the number of people to increase to more than 40,000 in a town of just 9,000 persons.

    The festival takes place on the town's main square. At 11 o'clock, the third Wednesday in August every year, a large pole(杆) with a ham tied to the end of it is raised into the air, and there is a mad climb as people struggle against each other to pull it down. Once this is achieved, a rocket goes skywards and more than 100 tons of ripe tomatoes are tipped from trucks to the waiting crowd. For precisely one hour, until a second rocket is fired, everyone joins in a cheerful tomato battle.

    La Tomatina began in 1945, but it is not known why. Locals have many theories, including the popular tale of angry townsfolk attacking city councilmen(议员) during a town celebration. However, it could also have started because of anything from an anti-France protest or simply a fun food fight between friends. Whichever way it started, the townsfolk of Valencia enjoyed it so much that it was repeated year after year, finally becoming an officially recognized celebration in 1952. Despite being cancelled briefly during the 1970s for having no religious significance, it has returned every year since then.

    Most people come for the day, arriving on the morning train from Valencia and heading back in the afternoon. But if you want the full La Tomatina experience, stay for the week-long celebration which involves music, dancing, parades and fireworks. The night before the fight, a cooking competition is held where women traditionally dress in white, and men without shirts altogether.

    Protection for the fight is recommended—wear old clothes and shoes and a pair of glasses to protect your eyes. What you don't bring to La Tomatina is also important. The crazy tomato-throwers attack each other with all their strength: cameras are seen as positive invitations to throw at the owner.

    A picture speaks a thousand words. And with over a thousand emoji pictures to represent our words, who needs to speak or write any more? According to Professor Vyv Evans of Bangor University, emoji is the UK's fastest-growing language in history. These little electronic pictures started life in Japanese mobile phones in the 1990s and are now hugely popular. They have inspired fashion, like the real-life dress copied from the dancing lady emoji, and are even recognized as art! In New York's Museum of Modern Art you can now see the first set of the 176 original emojis.

    Why do we love them so much? They allow us to personalize text and have fun as we express ourselves, make people laugh and be creative in how we use them. UK teenagers also told us they really appreciated the fact that emojis are quick and easy.

    People have their favourite emojis. In the UK, the most used emojis are ' face with tears ofjoy', ' face blowing a kiss' and 'Iove heart'. Maybe (with emojis at least) the British are more fun and romantic than people think! Companies such as McDonalds have also tried to use people's love of emojis to make advertisement. They used a series of emojis to tell a story of a disappointing day given a happy ending by a visit to McDonalds. Unluckily for McDonalds, most people added the vomiting(呕吐) emoji to the blank space after the story.

    What is the future of emoji? Is emoji developing so rapidly that it will soon compete with English as a global language? Or is technology changing so fast that emoji will soon be forgotten when the next big thing comes along? It is hard to say and even technology and language experts are divided on the subject.

    What do you think? Keep your eyes open for new developments!

Dear Mom,

    I haven't written before for quite a while because I have got no energy. I now get around my room and this floor of the hospital with a walking stick but I can go only a little bit at a time because I'm awfully weak yet. My right leg was taken out of the cast (石膏) several days ago and it's still as stiff as a board and awfully sore from so much carving around the knee joint. But the surgeon says that eventually it will be all right. I've included a picture of me in bed. It looks like my left leg is a stump (残肢), but it really isn't. Just bent so it looks that way...

    This war makes us a bit less fools than we were. There isn't going to be any such thing as "foreigners" for me after the war is won. I've gotten Italian pretty well. I've picked up quite a lot of Polish and my French is improving. You want to be prepared for a lot of visitors after the war now because I've a lot of pals coming to see me in Chicago. I don't know when I'll be back. I can't get in the army and they won't take me with two shaky legs in the draft (征兵) if I go home. So I might as well stay over here and avoid the awkwardness for a while.

    Also Ma, I'm in love again. Now don't start worrying about me getting married for I'm not. I'm not even going to get engaged. So don't write any "God Bless U, My Children": Not for about 10 years. You're a dear old kid, and still my best girl. God bless you and write me often... I love you.

Ernie