包邮大学英语四级完全解读手册:快速阅读.改错分册

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《大学英语四级完全解读手册:快速阅读.改错分册(710)》：大学英语完全解读手册系列全面覆盖题型，提供权威解读上海英语完全解读手册系列

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简介 　　《大学英语四级完全解读手册:快速阅读.改错分册(710)》：大学英语完全解读手册系列　　全面覆盖题型，提供权威解读　　上海英语完全解读手册系列

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When you get to the beach, the sand and the rocks are so hot that they hurt your bare feet. You put on sneakers in a hurry. The water is so bright and shinning in the sun that you can hardly look at it. while the charcoal fire is starting to burn in the cookout stove, every one goes for a swim. The water feels good - warm at the top, but cooler down around your toes.A little wind is blowing when you come out. The fire isn' t quite ready for cooking yet, so you play tag or read.For lunch there are hot dog, corn, salad and rolls, sodas, fruit, and coffee for the adults. By the time the coffee water boils and the corn and hot dogs are cooked, all the bathing suits are dry. So are the towels spread out on the rocks, in the sun.Lunch is good. Just as you are finishing, it starts to rain so you pack up and run. But no- body minds the rain. It will cool things off.At the same time you were having fun at the beach, work was being done. Energy from the sun was doing work. energy, in one form or another, does all the work in the world.Heat energy from the sun dried the towels. It heated the sand and the rock, the water and the air. It even made the rain and the wind. Heat from the sun does small work and big work, all over the earth.Light energy from the sun was working on the beach too. It supplied the daylight. It hit the earth and made the sand bright and the water sparkling.The sun also supplied the enery that grew the food you ate.Plants use light energy from the sun to make food for themselves. The food is a kind of sugar. It is also a kind of energy called chemical energe. Green plants change light energy from the sun into chemical energy.Plants use some of that energy for everyday living and growing. They store the rest in their leaves and seeds, in fruit, roots, stems, and berries.The salad and the corn, the rolls, fruit, and coffee all come from plants. You and all ani- mals depend on plants for food.The charcoal you used