广外英本毕业水平考试真题

Water is the source of this beauty and the source of life on Earth. It is the reason people can live on this planet. Water is everywhere. It is in the air that people breathe. It is in the soil, the ground that grows the food. Water is in rock deep under the ground, in natural holding areas — in storage. In a real sense, water keeps Earth alive. Nature has an unchanging amount of water. Nature has a perfect system for recycling water. Water is used again and again. It falls as rain. Then it goes to one of three places. It might sink slowly through the soil into the natural holding areas in the rock. It might disappear into the air quickly —by becoming vapor, or gas. It might run off into streams, rivers and oceans. By itself, nature can keep the balance and provide plenty of clean water for us. Nature recycles water.

However, people cause problems for this natural recycling system. Nature's recycling system can work well only if people work with the system and not against it. Some ways that people upset nature are easy to understand. For example, dirty sewage （污水沟系统）water from homes and factories must not mix with drinking water. People get sick from drinking contaminated water. Sometimes water from factories goes into streams and rivers. It enters into the groundwater. It can flow into lakes too. This kind of contamination from industry (waste water from factories) can be dangerous for people. If water contains poisons and chemicals, it is poison. Poison makes people sick; some poisons kill people as well as birds and animals. Without knowing, people can upset nature's recycling system.

来自于新视野大学英语读写教程第二册unit2-c Earth — a Living Planet

2012年4月本科实践课-毕业水平考试完形填空-引自

浙江2000年10月综合英语（二）试题

All over the earth"s surface is a layer of air which extends upwards for many miles. This air (1 B. contains) the oxygen without which neither plants nor animals could live. Its movements, temperature and pressure (2 A.determine) the weather, and it is a vehicle for the clouds of water vapour (3 D. which) condense and fall as rain. It forms a blanket which protects us from the extreme heat of the sun during the day and (4 D. from) the extreme cold when the sun has set.

It is chiefly (5 C. through) air that sound travels, so that if there were no air we should hear practically nothing.

The atmosphere is held (6 A. to) the earth"s surface by the gravitational pull of the earth-that is, it has weight. High up it is thin, but near the surface it is compressed by

the (7 C. weight) of air above, and is more dense. The weight of air pressing on each square inch of surface at sea-level is nearly 15 (8 D. pounds), which means that the total force on the skin of an average man is