The world itself is becoming much smaller by using modern traffic and modern communication means.Life today is much easier than it was hundreds of years ago,but it has brought new problems.One of the biggest problems is pollution.To pollute means to make things dirty.Pollution comes in many ways.We see it,smell it,drink it and even hear it.

    Man has been polluting the earth.The more people,the more pollution.Many years ago,the problem was not so serious because there were not so many people.When the land was used up or the river was dirty in one place,man moved to another place.But this is no longer true.

    Man is now slowly polluting the whole world.

    Air pollution is still the most serious.It's bad for all living things in the world,but it is not the only one kind of pollution.Water pollution kills our fish and pollutes our drinking water.Noise pollution makes us angry more easily.

    Many countries are making rules to fight pollution.They stop people from burning coal in houses and factories in the city,and from putting dirty smoke into the air.Pollution by SO₂ is now the most dangerous kind of air pollution. It is caused by heavy traffic.We are sure that if there are fewer people driving,there will be less air pollution.

    The earth is our home.We must take care of it.That means keeping the land,water and air clean.And we must take care of the rise in pollution at the same time.

    Americans, especially the millennials（千禧一代）, are always glued（固着于）to their phones. A common day of the average university student in America starts off like this: an alarm clock wakes you up, which is quickly followed by checking social media such as Twitter and Facebook. Once in classes, you are again attracted by your buzzing phone and access to the Internet rather than pay attention to the lecturing professor. Then you have lunch with some friends, only to look up from your screen to realize that no one has said a word in five minutes and instead all are looking at their phones. Once the day ends, you can't help checking all forms of social media again before finally being able to shut your eyes only to repeat this vicious cycle the next day.

    Cyberbullying（网络霸凌）, a concept unknown before, is now in fashion. Many of the millennials are using the Internet to make jokes about others to points of extremes. The Internet gives cowards bravery; people feel like their actions and words have no bad results because they cannot see the ache it causes another.

    Millennials also think that whatever information shows up on their screens must be taken as truth, whether the material is reliable（可靠的）or not.

    Social media is not all bad, however. People are still able to use social media to connect with friends and family who live a great distance away. With a few clicks of a button, someone could make another person smile, or give words of hope and encouragement to a friend in need, or even help repair a broken relationship. Cyberspace is a vortex（漩涡）that is easy to get caught up in, but we must find a balance to keep both feet in reality while traveling across the online world.

    Disney World, Not To Be Missed!

    Are you still looking for an amusement park to enjoy yourself? Then, Disney World is your best choice! Disney World has four theme parks. A single-day admission ticket to any of these four theme parks is $67 for adults and $ 56 for young children above three years. The very best time to come here includes middle of April to late May, and Labor Day to middle of November or early December. You'll surely have a fantastic and memorable experience!

    There's a new frontier in 3D printing that's beginning to come into focus: food. Recent development has made possible machines that print, cook, and serve foods on a mass scale. And the industry isn't stopping there.

     Food production

    With a 3D printer, a cook can print complicated chocolate sculptures and beautiful pieces for decoration on a wedding cake. Not everybody can do that — it takes years of experience, but a printer makes it easy. A restaurant in Spain uses a Foodini to "re-create forms and pieces" of food that are "exactly the same," freeing cooks to complete other tasks. In another restaurant, all of the dishes and desserts it serves are 3D-printed, rather than farm to table.

    Sustainability(可持续性)

    The global population is expected to grow to 9.6 billion by 2050, and some analysts estimate that food production will need to be raised by 50 percent to maintain current levels. Sustainability is becoming a necessity. 3D food printing could probably contribute to the solution. Some experts believe printers could use hydrocolloids (水解胶体) from plentiful renewables like algae(藻类) and grass to replace the familiar ingredients(烹饪原料). 3D printing can reduce fuel use and emissions. Grocery stores of the future might stock "food" that lasts years on end, freeing up shelf space and reducing transportation and storage requirements.

    Nutrition

    Future 3D food printers could make processed food healthier. Hod Lipson, a professor at Columbia University, said, "Food printing could allow consumers to print food with customized nutritional content, like vitamins. So instead of eating a piece of yesterday's bread from the supermarket, you'd eat something baked just for you on demand."

    Challenges

    Despite recent advancements in 3D food printing, the industry has many challenges to overcome. Currently, most ingredients must be changed to a paste(糊状物) before a printer can use them, and the printing process is quite time-consuming, because ingredients interact with each other in very complex ways. On top of that, most of the 3D food printers now are restricted to dry ingredients, because meat and milk products may easily go bad. Some experts are skeptical about 3D food printers, believing they are better suited for fast food restaurants than homes and high-end restaurants.

    TALENT ON PARADE

    It is time for the Smithdale Student Activity Club's yearly talent show. In the past, the club has had performers sing, dance, and play the violin, guitar, or piano. This year the show will be called "Talent on Parade", and we are looking for performers with great new ideas. In addition, we have planned two important changes for this year's show.

    Two Shows Instead Of One

    First, "Talent on Parade" will be held on two nights. Performers in the Wednesday night show will include students in Grades K-5. Performers in the Friday night show will include students in Grades 6-12.

    Smithdale High School Hall Wednesday, May 11, 6:30 P.M. Friday, May 13, 7:30 P.M.

    No Tryouts (预选)

    The second change is that this year's performers will be chosen in a new way. No tryouts will be held. The first twenty acts to sign up for each show will be accepted. Others will be put on a waiting list in case someone has an act that is not allowed. You'll be told by telephone or e-mail if your act is included.

    If you do not wish to perform but would enjoy helping backstage with lights or sound, print "stagehand" in large letters at the top of the permission slip (同意书).

    Rules For Acts

    ⒈Each student chosen to perform must turn in a permission slip signed by a parent or guardian(监护人).

    ⒉All performers must be at the school one hour before the show time.

    ⒊Performers must provide their own transportation to and from the school.

    ⒋Each act is limited to three minutes.

    ⒌No act may have more than five people in it.

    ⒍Performers must provide their own music (tapes, CDs, or instruments) and costumes.

    ⒎Singers may sing with or without musical accompaniment, but they may not sing along with a recorded voice on a CD or tape.

    In the nineteenth century, one of America's greatest writers, Walt Whitman, helped people learn to value poetry. Whitman created a new kind of poetry.

    Walt Whitman was born in eighteen nineteen in New York City. During his long life, he watched America grow from a young nation to the strongest industrial power in the world. As a young man, Whitman worked as a school teacher, a printer and a newspaper reporter. He was thirty-six years old when he published his first book of poetry in eighteen fifty-five. He called it Leaves of Grass. It had only twelve poems. The poems are written in free verse. The lines do not follow any set form. Some lines are short. Some are long. The words at the end of each line do not have a similar sound. They do not rhyme.

    One of America's greatest thinkers and writers immediately recognized the importance of Leaves of Grass. Ralph Waldo Emerson praised Whitman's work. But most other poets and writers said nothing and even denounced it. Most readers also rejected Whitman's poems. The new form of his poetry surprised many people. Even his own brother told Whitman that he should stop writing poetry. But Whitman had many things to say. And he continued to say them. Readers began to understand that America had a great new poetic voice.

    Walt Whitman's poems praise the United States and its democracy. The poet expressed his love for America and its people in many ways. Experts today praise Leaves of Grass as a major literary work. In eighteen seventy-three, Walt Whitman suffered a stroke. He spent the last years of his life in Camden, New Jersey. Whitman was poor and weak during the last years of his life. He died in eighteen ninety-two. Some critics say Walt Whitman was a spokesman for democracy. Others say he was not a spokesman for anything. Instead, they simply call him a great poet.