Modern zoos are very different from zoos built fifty years ago. At that time, zoos were places ___1___people could see animals from many parts of the world. The animals lived in _____2___with iron bars. The cages were easy to keep clean.__ 3___, for the animals, the cages were small and impossible to hide in. Although the zoo ____4____ took good care of them, many of the ____5____ did not feel comfortable, and they often became ____6____.

In modern zoos, people can see animals in more _____7___ conditions. The animals are given more freedom  in larger places ____8____ they can live more freely as they would in _____9___. Even the appearance of zoos has changed. Trees and grass grow in the cages, and water flows____10____ the places that the animals live in. There are few bars,____ 11____ there is often a deep ditch(沟), filled with _____12___, which surrounds a space where several_____13___ of animals live together as they would naturally. In an American zoo, the visitor can walk ____14____ a huge special cage that is filled with trees, some small animals and many birds. And it is large enough for all the birds to live ____15____.In a zoo in New York, because of special night ____16____, people can observe certain animals that are ___17_____ only at night when most zoos are closed. Some zoos have special places for visitors to ____18____ animals that live in the desert or underwater. Some other zoos have special places for animals that live in cold conditions like the ____19____ from the Arctic.

Modern zoos not only show animals for visitors, but also ____20____ and save rare animals. For this reason, fifty years from now, the grand children of today’s can still be able to enjoy watching these animals. 

1. A. that           B. where            C. which           D. there

2. A. houses          B. rooms            C. cages            D. offices

3. A.Therefore             B. However       C. So             D. Though

4. A. masters         B. managers              C. keepers         D. trainers

5 .A. workers        B. animals          C. bears            D. animals     

6. A. excited         B. angry            C. ill              D. frightened

7. A. natural         B. difficult         C. warm            D. different

8. A. so that          B. and            C. but                   D. or

9. A. forest           B. nature            C. rivers            D. the water

10. A. in            B. by              C. near              D. through

11. A. instead        B. instead of          C. and               D. or

12. A. stones         B. earth             C. oil               D. water

13. A. sorts           B. families         C. classes          D. groups

14. A. by           B. out             C. through         D. in

15. A. happily       B. naturally        C. deeply          D. hardly

16. A. moon         B. sign            C. light             D. signal

17. A. live            B. active            C. living           D. sleeping

18. A. feel            B. touch             C. watch           D. talk to

19. A. snakes        B. monkeys        C. bears            D. tigers

20. A. buy            B. keep              C. sell               D. catch

 0  29511  29519  29525  29529  29535  29537  29541  29547  29549  29555  29561  29565  29567  29571  29577  29579  29585  29589  29591  29595  29597  29601  29603  29605  29606  29607  29609  29610  29611  29613  29615  29619  29621  29625  29627  29631  29637  29639  29645  29649  29651  29655  29661  29667  29669  29675  29679  29681  29687  29691  29697  29705  151629 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网