Caffeine (咖啡因), a chemical typically found in coffee, has caused a lot of attention because it is one of the few drugs (毒品) that show up regularly in our food supply. You probably (use) caffeine since childhood. Caffeine (be) in your first Coke. If you ever enjoyed a chocolate bar, you ate caffeine. Soft drinks are the major source (来源) of caffeine for most children and even some adults. (recent), caffeine has found its way into orange, apple, and other drinks.
Small amounts (数量) of caffeine—a cup two of coffee a day—seem safe for most people. ,some people have trouble with even small amount. One cup of coffee in the late afternoon or evening will cause them (stay) awake almost all night. Larger amounts of caffeine can cause a problem (call) caffeinism. You get very nervous and you can't sleep.
It is possible caffeine may cause birth defects (缺陷) in humans, too. One study showed that (woman) who drank a lot of coffee, like eight or more cups per day, while they were pregnant (怀孕的) were more likely to have children birth defects.
One day in April, a special activity called"Food Street"was held on the playground at Railway No. 1 Middle School in Xi'an.
This activity was part of the English Art Festival in the school. The students in each class were divided(被划分) into some groups. Each group sold different kinds of foods. The students did the shopping and the cooking all by themselves. The students cooked delicious food such as fried chicken, potato chips and vegetables. They all worked hard and sold the food at low prices. The customers(顾客) were all students, teachers and parents. They were all pleased with the nice food.
"It's really hard work," said one of the students who took part in the activity. "We must make a plan before the cooking. We must know how much we should spend on the things we need. Also, we must learn how to serve customers well."
"This activity is to give a chance to students to develop(培养) their practical abilities(实践能力)," said one teacher, "What's more, the students will not only learn how to make money by their own hands, but also know the meaning of life. "
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regret, gather, group, member ,success, imagine, India, roof, west |
—I about that.
—All right.
—Yes. I think he's the best player in China.
