Part IV Cloze (15 minutes, 15 points, 1 for each)

Zoos have become an important site for the preservation and protection of wildlife resources, __61__ those species that are endangered. __62__, many zoos displayed live animals for public entertainment. Presently some zoos have become scientific and educational __63__ that have contributed to the understanding and conservation of wild animal populations. __64__ the challenges facing modern zoos are the cost of upgrading old facilities, the struggle to obtain __65__ operating funds,  and the need to attract more visitors to new and entertaining exhibits.

Many __66__ zoos in American cities have undergone renovation (翻新) during the last decades of the twentieth century. Among the recent trends in zoo __67__ is the construction of new enclosures that resemble natural habitats (栖息地). The replacement of traditional steel bars and concrete floors __68__ appropriately designed surroundings improves visitor appreciation of the animals. Such renovations may __69__ stress on animals and allow them to interact with one another more naturally.

Several major zoos conduct captive propagation programs. A captive propagation program includes the breeding of __70__ zoo or wild animals to obtain offspring, usually for release to __71__ or for transfer to other zoos. Captive breeding is one method of __72__ some species from extinction.

Zoos have expanded and improved public education programs also ,with education departments that develop programs __ 73__ zoo exhibits. Public activities include in-school programs, zoo tours, special events, and websites. The Zoological Society of New York, for example, conducted a major project with a Western African government to monitor an elephant herd __74__ it moved throughout its range.

The importance of zoos will increase as natural habitats are diminishing. Through their efforts __75__ conservation, education, and environmental advocacy, zoos will continue to play a critical role in wildlife preservation throughout the world.

61A especially 

B superficially

C importantly

D supposedly

62. A By that time

B By the time

C At that time

D At one time

63. A associations 

B institutions

C foundations

D corporation

64. A Along

B Toward

C Through 

D Among

65. A limited

B professional

C excessive

D sufficient

66. A older

B newer

C former

D later

67. A improvement

B management

C achievement

D assessment

68. A under

B for

C with

D into

69. A cause

B reduce

C increase

D avoid

70. A sustained

B selected

C promising

D surviving

71. A the natural

B natural

C the wild

D wild

72. A saving

B restraining

C sheltering

D exempting

73. A attributed to

B opposed to

C related to 

D referred to

74. A as if

B as

C so that

D so

75. A in stead of

B in honor of

C in charge of

D in support of