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《大学英语 B》机考完型填空题

Modern zoos are very different from zoos that were built fifty years 46 . At that time, zoos were places 47 people could go to see animals from many parts of the world. The animals lived in cages that were made 48 concrete with iron bars, cages that were easy to keep clean.

49 for the animals, the cages were small and impossible to hide in. The zoo environment was 50 natural. 51 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 52 in large areas so that they can live more 53 as they would in nature. Even the appearance of zoos has changed. Trees and grass grow in the cages, and streams of water flow 54 the areas 55 animals live in.

46. A. later B. ago C. before D. after

解析：现代动物园与建于50年以前的动物园不同。根据句子意思应该表示在…..以前，正确答案选B

47. A. which B. that C. when D. where

解析：指代那些地方用where，正确答案选D

48. A. up of B. into C. of D. for

解析：根据句子意思，动物居住在由混凝土做成的笼子里面，表示由。。。。组成有固定搭配make of组成，构成，正确答案选C

49. A. Unfortunately B. Successfully C. luckily D. Unusually

解析：由后面的句子，笼很小而且很难躲藏，所以对于动物来说是不幸的，正确答案选A 50. A. only B. anything only C. but D. anything but

解析：由前面可以看出那时的公园和自然完全不一样，表示不一样的意思用anything but，正确答案选D

51. A. Despite B. Since C. Now that D. Although

解析：由后面的句子可以了解到虽然饲养员很照顾这些动物可最后它们还是病了，根据上下文这里应该用Although表虽然…….但是，正确答案选D

52. A. freedom B. food C. drink D. dependence

解析：与前面对比，现代公园应该给动物更多的自由。正确答案选A

53. A. silently B. comfortably C. difficultly D. independently

解析：跟它们在大自然生活一样，可以推测是跟大自然一样舒服的意思，正确答案选B。silently静静的independently独立的

54. A. over B. through C. for D. below

解析：这里表示为河流流过了动物居住的地方。表示通过的意思应该用through，through穿过，通过over越过below在……下面，正确答案选B

55. A. that B. where C. when D. these