Do you know that a student can produce up to 240 pounds of school waste and lots of waste gas (气体) during a term? This includes transportation, food, paper, pens, pencils and so on.

    Transportation    Some parents drive their kids to school every day. We all know waste gas from cars is a main cause air pollution. If parents who live in a neighborhood can take turns to drive their kids to school each day, that'll be better. Another way of going green is to walk to school if students live near their schools.

    Food    It's surprising that only one elementary school can produce up to 19,000 pounds of lunch waste each year. That's only one school. One way to help take care of the environment is to stop using plastic bags. There are all kinds of environmental boxes for students to put their food in.

    Paper, pens and pencils Lots of paper is thrown away by American students. They throw away about 1.6 billion pens every year. They waste many pens and chemicals (化学药品) in them are bad for the environment. Many more pencils are thrown away than pens. Pencils are made from trees, so if more pencils are thrown away, more trees will be cut down. So students should reuse (再使用) paper, pens and pencils instead of throwing them away.

    Backpacks As fashion comes and goes, almost every kid needs a new backpack every year. They can save lots of money and materials if they reuse the same schoolbags each year.

    Popular music in America is what every student likes. Students carry small radios with earphones and listen to music before class, after class and at lunchtime. Students with cars buy the large speaker and play the music loudly as they drive in the street.

    Adult(成年的) drivers listen to music on the car radio as they drive to work. They also listen to the news about sports, the weather and the life of American people. Most of the radio programs are music.

    Pop or popular music singers make much money. They make a CD or tape and radio stations use them in many places. Once the popular singer is heard all over the country, young people will buy his or her tape. Some of the money from these tapes comes to the singer. Wherever the singer goes, all the young people want to meet him or her. Now the singer has become a national star.

    There are other kinds of music that is important to Americans. One is called folk music. It tells stories about the common (普通的) life of Americans. Another is called Western or country music. It is about country life and the love between a country boy and his girlfriend. They are very popular among young people.

    Teeth are a very important part of our bodies. Good teeth help you eat things like apples. They also help you talk. The healthier your teeth are, the happier you will be.

    You can take care of your teeth by brushing and flossing（用牙线清理）them.

    But before that, you have to pick a good toothbrush. Be sure your toothbrush are soft enough Also, brushes with small heads are better. They can reach every corner of your mouth.

    Now it's time to brush. Brushing helps break down plaque（牙菌斑）Plaque is a kind of bad thing that can make small holes in your teeth. Brush your gums at a 45—degree angle（角度）This works well to clean both the teeth and gums.

    Learn how to floss your teeth. It gets rid of food in the spaces between your teeth. Your toothbrush can't get there. Move floss between each tooth gently back and forth once a day. It may feel a little difficult at first, but pretty soon. You'll be good at it!

    People drink tea. There are many kinds of tea, such as black tea, green tea, white tea and yellow tea. People drink a lot of tea in China. Some people drink it because they think it makes them healthy. Many people drink it because it tastes(尝起来) very good. It is delicious.

    People drink a lot of tea in Japan. People drink a lot of tea in South Korea too. In Vietnam, people like to drink coffee first. Then they drink tea. In England, people like to drink tea with milk.

    Many people drink black tea in the US. In the South, people like to drink sweet tea. Sweet tea is cold black tea with sugar in it.

    Most tea comes from China. Some tea comes from India or Sri Lanka.  Kenya, Japan and Indonesia also grow tea.

    Drinking tea around the world

    Mary Dexter is a student. She is from the USA. She studies in a middle school.   ①  Her favorite subject is science. Though Mary is only 13 years old, she begins to think about her future(未来).After she finishes high school, she wants to study at college(大学)in San Diego.   ② 

    Mary wants to study marine biology. That is to say, she will learn about all the animals in the sea. And San Diego is a great place to study marine biology because it is near the sea, and the city has a great Sea World. People can see many sea animals there.

      ③   "I want to work with sea animals and help them," says Mary.

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