第二节：完形填空 (共20小题；每小题1分，满分20分)
阅读下面短文，掌握其大意，然后从21-40各题所给的四个选项(A、B、C和D)中，选出最佳选项，并在答题纸上将该选项标号涂黑。
We find different kinds of animals in the world. Some animals, such as tigers and lions live in big forest and they are called   21   animals. Some others like sheep and dogs are   22   by men and they are called domestic(驯养) animals. These animals are very different from one another, but we can   23  them into big groups: those that eat other animals and those that eat grass and leaves. Animals like the   24   belong to the first group.
Animals are   25   great use to human beings. Men   26   wild animals for their fur and meat. Domestic animals are   27  more important to men. Without them, life will be   28   . People make use of animals in many   29   .
Cows and dogs are useful to men’s   30   . They five 80% of the   31   men eat every year. Skin of some animals can be   32  into expensive overcoats and shoes, which are warm and comfortable and   33   a long time. They are very welcome in   34   countries. Wool, which is now one of the most important material for textile(纺织)   35  , comes from a special kind of   36   . From cows, we get milk. And we shouldn’t   37   that some domestic animals are kept for transport. Many people   38   ride horses. Arabs ride on camels which travel in deserts for days without   39  . In some places animals are still used to plough field.   40   is clear that men just can’t live without these animals.
21. A. wild                   B. serious                        C. terrible                     D. fighting
22. A. trapped               B. treated                   C. sold                   D. kept
23. A. separate                     B. divide                     C. sell                       D. keep
24. A. chicken               B. tiger                     C. fish                      D. goat
25. A. with                   B. to                       C. for                       D. of
26. A. hunt                   B. discover                   C. raise                         D. care for
27. A. quite                  B. every                  C. even                        D. some
28. A. smooth               B. difficult                   C. easy                         D. perfect
29. A. ways                  B. groups                     C. places                  D. kinds
30. A. life                        B. work                    C. family                  D. food
31. A. meal                   B. meat                   C. dinner                     D. animals
32. A. put                        B. turned                     C. made                     D. changed
33. A. last                    B. cost                     C. take                     D. dress
34. A. cool                   B. cold                      C. warm                   D. foreign
35. A. business        B. workers                   C. industry                   D. factory
36. A. sheep                  B. goats                     C. cows                     D. animals
37. A. forget                 B. remember                 C. realize                  D. notice
38. A. always                B. hardly                     C. still                      D. just
39. A. resting                B. drinking                   C. sleeping                   D. stopping
40. A. That                   B. This                      C. It                        D. So