Now lots of teenagers like smoking. It's a big problem. Some of them smoke, just for fun and some think smoking looks cool. Others smoke because there are many people around them that smoke.
    As we all know, smoking is harmful, especially to students. Some teenagers even steal money so that they can buy cigarettes. Besides, smoking does harm to brains and it can influence studies. Finally, it is bad for health because it can cause diseases.
    Therefore, we should protect ourselves from smoking. First, we should learn more about the danger of smoking. Second, we should keep away from people who smoke.

We've talked about snails (蜗牛) and their slow move. But much of the time snails don't move at all. They're in their shells —sleeping .

    Hot sun will dry out a snail's body. So at the least sign of hot sun, a snail draws its body into its shell and closes the opening with a thin cover. Then it goes to sleep. A snail will die in a heavy rain. So whenever it rains, it goes inside its shell house and goes to sleep. A snail can sleep for as long as it needs to. It can take a short sleep. Or it can sleep for days at a time. And it spends all the winter months in its shell, asleep.

    In spring the snail wakes up. Its body, about three inches long, comes out of from the shell. When hungry, the snail looks for food. It can't see very well. Its eyes, at the ends of the top feelers are very weak. But its sense of smell is very strong. It helps the snail to the new greens. Then the snail's little mouth goes to work.

    A snail's mouth is no longer than the point of a pin(针). Yet it has 256,000 teeth! The teeth are so small that you can't see them. But they do their work. If you put a snail in a hard paper box, it will eat its way out. And if a snail wears out its teeth, it will grow new ones.

    Mostly, a snail looks for food at night .But on cloudy days it eats in the daytime. It eats all day long. A snail can go on eating for hours and never feel full.

    It is reported that some developed countries have shipped broken parts of computers to China. Such a thing can be found almost every day although it is against international laws. Hong Kong officers once found 131, 000 kilograms of broken computers, TVs and phones sent from Japan.

    Things like these are called electronic waste or e-waste. Dealing with e-waste is not an easy job because dangerous poisons like mercury(汞)and lead(铅)can be found in e-waste. Every time an old computer breaks down, it needs to be dealt with safely. But at present, broken computer parts are usually buried. It may be hundreds of years before they are really gone in the earth.

    Many places in China are polluted by e-waste. Guiyu in Guangdong Province is one of them. This town is named as" the e-waste capital of the world”. It has to deal with 1. 5 million kilograms of e-waste each year, from which it makes 75 million yuan. But it comes at a cost. Many of the poisons in e-waste find their way into the environment. Plastic is burned outdoors and chemical water is poured into rivers. An environmental group has found the air, the earth and the rivers in Guiyu badly polluted.

    The Chinese government wants to develop, but in a way that doesn't do harm to the environment and people's life. China passed a new environmental protection law in 2015, the strictest one we have ever ha   D. Computer companies like Lenovo and Dell will be asked to take back their old computers. This is because the companies that make computers know how to deal with them safely. Hopefully, the problem with e-waste will be solved in the near future.

    When it comes to food, color rules! colorful fruits and vegetables are the key to a healthy diet. They give the body important things, such as vitamins and minerals, and help fight illness. Health experts(专家) think that kids should eat five or more servings (一份)of fruits and vegetables a day.

    Here are some rainbow colors to brighten your plate.

    Red

    Foods: cherries (樱桃), radishes (萝卜), red apples, strawberries, tomatoes

    ● Help to remember things well ● Good for the heart

    ●Reduce cancer risks(减少癌症风险)

    White

    Foods: onions, mushrooms, potatoes

    ● Good for the heart ●Reduce cancer risks

    Orange / Yellow

    Foods: apricots(杏), cantaloupes (甜瓜), carrots, corn, oranges

    ● Protect eyesight ●Build a strong immune system(免疫系统)

    ● Good for the heart

    Blue / Purple

    Foods: eggplants (茄子), plums (李子), purple grapes

    ●Reduce cancer risks ●Help to remember things well

    Green

    Foods: green beans, green peppers, lettuce(生菜), spinach(菠菜), peas

    ●Good for bones and teeth ●Reduce cancer risks ●Protect eyesight