网络教育大学英语B考试题库——完形填空.doc

1、Modern zoos are very different from zoos that were built fifty years 21 . At that time, zoos were places 22 people could go to see animals from many parts of the world. The animals lived in cages that were made 23 concrete with iron bars, cages that were easy to keep clean. 24 for the animals, the cages were small and impossible to hide in. The zoo environment was 25 natural. 26 the zoo keepers took good care of the animals and fed them well, many of the animals did not thrive; they behaved in strange ways, and they often became ill. In modern zoos, people can see animals in more natural habitats. The animals are given more 27 in large areas so that they can live more 28 as they would in nature. Even the appearance of zoos has changed. Trees and grass grow in the cages, and streams of water flow 29 the areas 30 animals live in. (1)、 A：later B：ago C：before D：after ：B(2)、 A：which B：that C：when D：where ：D (3) A：up of B：into C：of D：for ：C (4) A：Unfortunately B：Successfully C：luckily D：Unusually ：A (5) A：only B：anything only C：but D：anything but ：D (6) A：Despite B：Since C：Now that D：Although ：D (7) A：freedom B：food C：drink D：dependence ：A (8) A：silently B：comfortably C：difficultly D：independently ：B (9) A：over B：through C：for D：below ：B (10) A：that B：where C：when D：these ：A Fire can help people in many ways. Fire can heat water, 21 your house, give light and cook food. But fire can burn things too. Nobody knows 22 people began to use fire. One story from Australia tells about a man a very long time ago. He 23 the sun by a rope and brought fire down. Today people know how to 24 a fire with matches. Children sometimes like to play with them. But matches can be very 25 . Fire kills people every year. So you must be careful 26 matches. You should also learn to 27 fires. Fires need oxygen. Without oxygen they die. There is 28 in the air. Cover a fire with water, sand, or in an emergen