2. 考研
  3. Zoos have become an important site for the preservation and protection of wildlife resources,【C1】______those species that are en

Zoos have become an important site for the preservation and protection of wildlife resources,【C1】______those species that are en

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问题     Zoos have become an important site for the preservation and protection of wildlife resources,【C1】______those species that are endangered【C2】______, many zoos displayed live animals for public entertainment. Presently some zoos have become scientific and educational【C3】______that have contributed to the understanding and conservation of wild animal populations【C4】______the challenges facing modern zoos are the cost of upgrading old facilities, the struggle to obtain【C5】______operating funds, and the need to attract more visitors to new and entertaining exhibits.
    Many【C6】______zoos in American cities have undergone renovation (翻新) during the last decades of the twentieth century. Among the recent trends in zoo【C7】______is the construction if new enclosures that resemble natural habitats (栖息地) . The replacement of traditional steel bars and concrete floors【C8】______appropriately designed surroundings improve visitor appreciation of the animals. Such renovation may【C9】______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【C10】______zoo or wild animals to obtain offspring, usually for release to 【C11】______or for transfer to other zoos. Captive breeding is one method of【C12】______some species from extinction.
    Zoos have expanded and improved public education programs also, with education departments that develop programs【C13】______zoo exhibits. Pubic 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【C14】______ito moved throughout its range.
    The importance of zoos will increase as natural habitats are diminishing. Through their efforts【C15】______conservation, education, and environmental advocacy, zoos will continue to play a critical role in wildlife preservation throughout the world.
【C15】
选项 A、in search of
B、in honor of
C、in charge of
D、in support of
答案D
解析 in search of寻找；in honor of纪念，向……致敬：in charge of负责；in support of支持，拥护。故答案选D。
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