If you are looking for something fun and educational to do in Maryland, why not visit the Maryland Science Center? It is located at 601 Light Street, Baltimore, MD 21230.The ticket prices vary depending on ages, groups and the exhibits you choose.

    Introduction

    The Maryland Science Center is basically a museum, but it gives everyone a chance to learn through experience and play, rather than just glance at an exhibit.

    Activities

    You can learn about various topics, including outer space, the human body, dinosaurs, electricity, marine（海洋的）biology, energy, and much more. You can also take part in the interactive activities, such as racing bubbles, digging for dinosaur fossils, using puzzle pieces to construct cars, and so much more.

    The Davis Planetarium（天文馆）

    At the Davis Planetarium, you can lie back in a chair and look at the stars while still inside the Science Center. The stars will appear on the ceiling of the theatre as you watch them.

    There are different shows to catch at the Davis Planetarium. You can learn about the galaxy and astronomy during the Dark Matters show. Learn about the stars and planets during the Sky Live show. The One World One Sky show allows children to explore the stars. The Live from the Sun show will teach you all about the hot sun.

    The Kids Room

    For children, they can't miss the Kids Room. They will be able to play in a water area, construct dams and water towers, push buttons, ring doorbells, build with blocks, and more, and definitely they will learn a lot. In addition, there is also an area for kids of two years old and under, where they can crawl, walk and explore safely with soft toys.

    What does it take to be a good neighbor ? Over the years I have had all kinds of neighbors.ones that were enjoyable and others that were to be avoided at all costs.

    One of the most important things in being a good neighbor is to respect a person's privacy(隐私).When someone new moves into the neighborhood it is a good idea to watch them to see how friendly you should be if you go rushing over as soon as they move in they may think you are going to be one of those neighbors that come over at all times of the day,not respecting their privacy.

    It is a good idea always to be friendly to everyone in the neighborhood.This can not only put you on good terms with them,but will also be a form of protection for your family and home.If you wave as they drive by or offer a friendly hello while they are out in their yard this shows that you respect them.If you are friendly do them they are much more likely to watch out for any wrong doings going on around your home while you are out and let you know if anything happens.

    Another way of being a good neighbor is to be helpful in times of need.If you see that they are in need of a helping hand doing something or in times of a disaster,it is good to offer your help.Even though you have never really talked to the people down the street,they are willing to take the time to help out a neighbor in need.

    In conclusion,if you respect a person's privacy,treat them kindly and be helpful when you see they are in need,you will be a great neighbor and anyone would be happy to have you next door!

A

My First Marathon（马拉松）

    A month before my first marathon, one of my ankles was injured and this meant not running for two weeks, leaving me only two weeks to train. Yet, I was determined to go ahead.

    I remember back to my 7th year in school. In my first P.E. class, the teacher required us to run laps and then hit a softball. I didn't do either well. He later informed me that I was ＂not athletic＂.

    The idea that I was ＂not athletic＂ stuck with me for years. When I started running in my 30s, I realized running was a battle against myself, not about competition or whether or not I was athletic. It was all about the battle against my own body and mind. A test of wills!

    The night before my marathon, I dreamt that I couldn't even find the finish line. I woke up sweating and nervous, but ready to prove something to myself.

    Shortly after crossing the start line, my shoe laces(鞋带) became untied. So I stopped to readjust. Not the start I wanted!

    At mile 3, I passed a sign: ＂GO FOR IT, RUNNERS!＂

    By mile 17, I became out of breath and the once injured ankle hurt badly. Despite the pain, I stayed the course walking a bit and then running again.

    By mile 21, I was starving!

    As I approached mile 23, I could see my wife waving a sign. She is my biggest fan. She never minded the alarm clock sounding at 4 a.m. or questioned my expenses on running.

    I was one of the final runners to finish. But I finished! And I got a medal. In fact, I got the same medal as the one that the guy who came in first place had.

    Determined to be myself, move forward, free of shame and worldly labels(世俗标签), I can now call myself a ＂marathon winner＂.

    I began writing poems fifteen years ago while I was in college. One day I was in the library, working on a term paper, when I came across a book of contemporary poetry. I don't remember the title of the book or any of the titles of the poems except one: “Frankenstein's Daughter.” The poem was wild, almost rude, and nothing like the rhyme-and-meter poetry I had read in high school. I had always thought that poetry was flowery writing about sunsets and walks on the beach, but that library book contained direct and sometimes shocking poetry about dogs, junked cars, rundown houses, and TVs. I checked the book out, curious to read more.

    Soon afterward, I started filling a notebook with my own poems. At first I was scared, partly because my poetry teacher, to whom this book is written for, was a serious and strict man who could see the errors in my poems. Also, I realized the seriousness of my devotion. I gave up geography to study poetry, which a good many friends said offered no future. I ignored them because I liked working with words, using them to reconstruct the past, which has always been a source of poetry for me.

    When I first studied poetry, I was single-minded. I woke to poetry and went to bed with poetry. I memorized poems, read English poets because I was told they would help shape my poems, and read classical Chinese poetry because I was told that it would add clarity to my work. But I was most taken by the Spanish and Latin American poets, particularly Pablo Neruda. My favorites of his were the odes ― long, short-lined poems celebrating common things like tomatoes, socks and scissors. I felt joyful when I read these odes, and when I began to write my own poems, I tried to remain faithful to the common things of my childhood — dogs, alleys (小巷), my baseball mitt (手套) and the fruit of the valley, especially the orange. I wanted to give these things life, to write so well that my poems would express their beauty.

    I also admired our own country's poetry. I saw that our poets often wrote about places where they grew up or places that impressed them deeply. James Wright wrote about Ohio and West Virginia, Philip Levine about Detroit, Gary Snyder about the Sierra Nevadas and about Japan, where for years he studied Zen Buddhism (禅宗佛教). I decided to write about the San Joaquin Valley, where my hometown, Fresno, is located. Some of my poems are absolute observations and images of nature — the orange yards, the Kings River, the Sequoias (红杉). I fell in love with the valley, both its ugliness and its beauty, and quietly wrote poems about it to share with others.

    Last summer, bird-watchers confirmed the discovery of a new species of bird in Cambodia was not an event of particular biological significance, but it was striking for one reason in part. This species of bird was discovered not in an unspoiled rain forest but within the limits Cambodia's capital, Phnom Penh – a city the size of Philadelphia.

What the researchers found was surprising in cities. The medium-sized city in the state about 110 species of birds, over 95 percent of which would have been growing there urbanization. Ecologically speaking, cities are different, concrete buildings. Rather, each unique bio-profile – a kind of ecological fingerprint – that is against the idea of an environment dead zone.

    Of course, it's also true that in the world of birds and plants, as in human society, there is such a thing as worldwide—the city-inhabitants who feel equally at home in San Francisco, Milan and Beijing. Four birds occur in more than 80 percent of the cities studied, and 11 plants occurred in more than 90 percent of the cities. On the plant side, those are seemingly spread by European settlement. In the air, it's the usual suspects: the rock pigeon and many other birds. “They have become completely adapted to urban life,”Katti says. “That's not much of surprise. But they don't actually dominate as much as we think they do.” Those species—occurring in the cities across the globe—represent only a small part of a city's natural varieties.

    Not all cities are equal protectors of native animals and plants, though. One of the biggest predictors for a city's biodiversity is its urban design. Territory as varied as backyards and street trees can lay important roles in greening a city. In fact, the amount of green space is a stronger predictor of the density of biodiversity than a city's size. A metropolis with a sizable network of parks can contain more species per square mile than a much smaller city.

    In a world where architecture, food, language, fashion and commerce are increasingly globalized, a city's native animals and plants can be a kind of identity. There may be neighborhoods in London and Paris that resemble Singapore or Hong Kong. Cities are becoming similar, but their natural environments stand completely apart.