10．Modern zoos are very different from zoos built fifty years ago．At that time，zoos were places where people could go to see animals from many parts of the world．The animals lived in cages with iron bars，which were easy to keep clean．However，for the animals，the cages were small and impossible to hide in．Although the zoo keepers took good care of them，many of the animals did not feel comfortable，and they often became ill．
In modern zoos，people can see animals in more natural conditions．The animals are given more freedom in larger places so that they can live more as they would in nature．Even the appearance of zoos has changed．Trees and grass grow in the cages，and water flows through the places that the animals live in．There are few bars； instead，there is often a deep ditch filled with water，which surrounds a space where several sorts of animals live together as they would naturally．In an American zoo，the visitor can walk through a huge special cage that is filled with trees，some small animals and many birds，and the cage is large enough for the birds to live naturally．In a zoo in New York，because of special night，people can observe certain animals that are active only at night，when most zoos are closed．Some zoos have special places for visitors to watch animals that live in the desert，or under water．Some other zoos have special places for animals that live in cold conditions like the bear from the Arctic．
Modern zoos not only show animals for visitors，but also keep and save rare animals．For this reason，fifty years from now，the grandchildren of today's visitors will still be able to enjoy watching these animals．
26．Fifty years ago，animals in zoos often became ill because theyD．
A．were from different countries
B．lived in dirty cages
C．were not taken good care of
D．lived in unnatural conditions
27．According to the passage，in modern zoosD feel more comfortable than in old ones．
A．the animals，not the visitors
B．the visitors，not the animals
C．neither the animals nor the visitors
D．the animals and the visitors
28．The main idea of this passage is thatA．
A．zoos are now places where animals can live naturally
B．zoos are places where people can see animals from all over the world
C．there are different kinds of modern zoos
D．rare animals are also kept in modern zoos．
分析 主要讲述了在现在社会，动物园里的动物因为环境的改变人们思维的变化等过着更贴近自然的生活，动物园成为了更适合动物生活的地方．
解答 26．D 细节题．根据文章第一段内容However，for the animals，the cages were small and impossible to hide in．Although the zoo keepers took good care of them，many of the animals did not feel comfortable，and they often became ill．50年前，动物们呆着的笼子很小而且不足以藏身．尽管饲养员们尽心照顾，可动物们还是容易生病，结合选项，故选D．
27．D 细节题．根据文章第二段内容In modern zoos，people can see animals in more natural conditions．The animals are given more freedom in larger places so that they can live more as they would in nature．在现代的动物园，人们能够在更自然的环境下看动物．而动物们也生活在更加大的空间里被给予更多的自由，那样他们能够生活的像在自然界一样．结合选项，故选D
28．A 主旨题．根据文章内容，主要讲述了在现在社会，动物园里的动物因为环境的改变人们思维的变化等过着更贴近自然的生活．结合选项，故选A
点评 本文是社会文化类阅读理解．做这类题材阅读理解时要求考生对文章通读一遍，做题时结合原文和题目有针对性的找出相关语句进行仔细分析，结合选项选出正确答案．推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案，切忌胡乱猜测，一定要做到有理有据
