For many in the United States, Arab-Americans are an invisible part of the population. Though Arab-Americans as a community have made great contributions to American society in fields from literature to politics to medicine, many Americans know very little about Americans of Arab backgrounds.
Arab history in the United States goes back to the late 1800's when large numbers of Arab immigrants first began making their journey to a land known simply as “Amreeka”.
Historians generally describe Arab immigration to America in two waves. The first wave took place between 1860 and 1924.The first wave consisted of Lebanese and Syrian, and some Egyptian immigrants. These new immigrants, who were mostly Christian, came to America in search of better opportunities. Even the doomed Titanic, which set sail for America in 1912,had close to a hundred Arab passengers aboard. The majority of Arab-Americans today are descendents of the first wave of immigrants; they are the third or more generation Americans.
The second wave of immigrants followed after World War Ⅱ,caused by political unrest in the Middle East. This second wave of immigrants consists of mainly Arab Muslims（穆斯林）and continues to this day.
Arab-Americans make up 3 million of the population in the United States, according to demographers. And quite different from popular belief, 64 percent of them are American-born. Eighty-two percent of Arab-Americans are US citizens.
Arab-Americans are beyond the national average in both education and income. Education is important among Arab-Americans; 82 percent have high school diplomas, 36 percent have bachelor's degrees or higher, and 15 percent have graduate degrees. The-median（中位数的）average income among Arab-Americans is $39,580, which is higher than the US average.

    The American book Who Moved My Cheese has been a best seller all over the world. It teaches people how to face changes in their lives. It is just for teens. The book tells us that when facing change in our life, like a new school or new friends, don't be afraid. Use this change to make a better life.

    The book gives an example of a change at school. A school is changing from having two terms to three terms because there are too many students. Several teens are talking about this. Most of them are unhappy and worried. But Chris is not. He laughs and tells a story about two mice, two“little people”and some cheese.

    The four are in a maze(迷宫)looking for  The cheese. Here, cheese means some thing important in life. But they find the cheese is gone. The mice realize that they can't change what has happened and have to find more cheese. This means finding different dreams. The little people can't do this. They are afraid of change so they find no cheese.

    After Chris finishes the story, the friends understand one thing:to get more cheese, move in a new direction quickly. His friends understand how this can be used in the changes all teens face, such as doing well at school or feeling good about yourself.

    Heritage (遗产) is traditional customs, history and beliefs. We use the word “heritage” in many different ways. People talk about their family heritage, city heritage and national heritage.

    Today, heritage is changing. The Internet connects people around the world. In many ways this is a good thing, because we can learn about the heritage of other countries, and we can show our own heritage to the world. However, some people worry that traditional heritage is disappearing. In many ways, countries are becoming more and more alike(相似的).In most countries around the world, you can find KFC. Nike shoes, Starbucks coffee. American movies and so on. Some people think this is a good change, and others don't like it. You can decide whether or not it's a good thing.

    However, everyone wants to protect traditional heritage, and sometimes this is hard. For example, when a new KFC opens in your city, a traditional restaurant might have to close.

    That is why heritage protection is so important. Heritage protection is a simple thought. It means keeping your country's or your city's heritage alive. People do this in many ways. The biggest part of heritage protection is probably preserving (保护)old buildings. Some suggestions of heritage protection are making sure your kids speak your traditional language, and teaching knowledge about heritage to them.

    The world is changing. No matter how it changes, never forget the heritage of our parents and grandparents.

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    From a large elephant to a small mouse, animals live happily together in Disney's new movie Zootopia. Judy Hopps, the main character, becomes the first rabbit police officer in the city. While solving a mystery, she meets the smart fox, Nick, who helps her with her case（案件）, and some other animals like the lion mayor（市长）and a mouse called Flash. Here is something more about the movie.

    There are 61 kinds of animals in the movie. All of them look like real ones except Judy, the first rabbit police officer. Its appearance is a bit different from real rabbits. Real rabbits actually have split lips（嘴唇）, but the film makers decided to make Judy's lip all together to look nice.

    Film makers learned that not all fur（皮毛）of animals is the same. In the movie, some of polar bears' fur is clear. It appears white because the light reflects off it. Part of a fox's fur is dark at the root, getting lighter till its red top. They did so to make sure that the animals in Zootopia were believable.

    Moreover, a film maker, Nathan Warner with his partners also took a trip to Africa for researching animals. There they had a close watching of different animals. According to their discovery, these artists added leaves to animals' coats like the big sheep. They also made animals' tears run from the inside corners of eyes down to the outside of the mouths.