Have you ever wondered what an American high school is really like? This article will describe a typical (典型的) high school and its students.

A typical American high school has several large buildings and enough space for about l, 500 students. Every student is given a locker. When students first arrive at school, they go straight to their lockers to put away or get their textbooks and to hang up their outdoor clothes. As American textbooks are expensive, students would rather loan (租借) than buy them. Students must pay back if they lose any of them.

American students have different types of school transport. They usually take a yellow school bus or walk to school if they live close enough. Sometimes their parents drive them to school. When they turn 16 years old, most take a free driving class at school for one term.  If students earn passing grades in the class and also pass their state driver's exam, they can begin driving themselves to school.

Each day, students take six or seven classes. They must take Science, Maths, English and Social Studies. They can choose Art, Homemaking, Fashion Design and other classes.  In some schools students are required to take one or more of the following special classes: Health Education, Physical Education or Foreign Language Studies. Students move to different classrooms for each subject. This is because each teacher has their own classroom.  There is a five-minute break between classes, to give the students the time to hurry to their next class.

The regular school day usually ends early in the afternoon. After school more than half of the students are involved in after-school activities. These activities include sports-especially football, basketball, baseball and soccer or clubs, such as yearbook, speech, school newspaper, photograph or student government.

      CCTV reported that every year Chinese people throw away a lot of food which can feed 200 million people for a year.

      Do we have too much food? Of course not. According to the UN World Food Programme, there were 900million hungry people all over the world in 2013. About six million children die of hunger every year.

     So think about it. We should say no to people who waste food every day. An old saying goes, “Every grain on the plate comes from hard work.” It tells us everybody must save food.

      Luckily, a number of people have realized the importance of saving food. Li Hong, a waitress in a restaurant in Jiangsu, once lost her job because she took some leftover(剩余的) food home for her son. But many people were by her side and criticized (批评) the waste of food.

      What should we do in our daily life to stop wasting food? We can do many things to prevent it from happening. Here are some tips:

     Don't order too much food in a restaurant. Only order as much as you can eat. If you can't eat all the food you order, take the rest of it home.

      Don't be too picky(挑剔的) about food. Some food may not be tasty, but put body need it.

Don't keep too much food at home, especially for fruit and vegetables.

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    Just before the Midnight on Aug. 12th, 2015, a big explosion（大爆炸）hit the port City of Tianjin, China. Lots of people were injured by the explosion. Some of them suffered from chemical burns（灼伤）.

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    Put on gloves or protection suit（防护衣）. If possible. Avoid exposing yourself to chemical.

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    Keep the burn area in cold water for at least 20 minutes.

    Don't use a strong stream（水流） of water, if possible.

    Don't try to deal the burn area with other ways before you see a doctor.

    Don't put antibiotic ointment（抗生素药膏） on the burn. This could cause a chemical Reaction（化学反应） that worsens the burn.

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    You can cover a small burn with dry, sterile gauze

（消毒纱布）or clean cloth to protect it from being infected（感染）.

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    Though we can deal with this emergency by ourselves. We are not the doctors. So we must see the doctors for help us with the burn. The sooner you see the doctor, the safer you will be.

    Think about this question: what would it be like if there was no other way to get around and we could only use our feet? {#blank#}1{#/blank#} Also, we would spend a lot of time on the way before we got somewhere. So we really need to thank all those modes of transportation (交通方式(.

    {#blank#}2{#/blank#} The earliest boats were canoes(独木舟). Later there were sailing boats(帆船), but they could only be used in one direction. {#blank#}3{#/blank#} 

In the 19^th century, some modes of transportation that we know today came out, such as the bike, the train and the subway. {#blank#}4{#/blank#} As it got easier to travel, people wanted to get to places faster. In the early 20^th century, the first plane in the world came out. By the 1970s, many families in the UK had a car.

    {#blank#}5{#/blank#} They all make our traveling easier and faster and help us see this world better.