C. He made the most famous Land Art.

　　D. He was a pioneer in creating Land Art.

　　27. One of the unique characteristics of Land Art lies in________.

　　A. it shows the extreme beauty of nature

　　B. it develops and decays gradually over time

　　C. it combines the landscapes around completely

　　D. it offers the artists a chance to get close to nature

　　28. What may be the best title for the text?

　　A. Works of Land Art　　 B. History of Land Art

　　C. Changes of Land Art D. Introduction of Land Art

四、完形填空（共20小题；每小题1.5分，满分30分）

　　Conservationists are breeding(饲养)lions in the Southern African nation of Zimbabwe. The wildlife experts hope to increase the lion population to keep the great cats from　29　.

　　In some areas, lions and human beings are　30　control of land. Researchers believe something must be done quickly to　31　the animals.

　　The African Lion and Environmental Research Trust (ALERT) has more than 100　__32　in its breeding program. Antelope Park Farm is one of two sites ALERT operates in Zimbabwe.

　　Gary Jones heads the Antelope Park Farm. He says ALERT has become involved　__33　a sharp drop in the number of lions. His group believes this has been　34__　mainly by humans. There are more people moving to this area every year. The lions have　35　land on which to live.

　　Gary Jones says the decrease in the lion population affects the whole　36　. He adds that other African nations are also seeing the　37　effects of this.

　　There are countries, 　38　in central and north Africa, where the lion population has reached a(n)　39　level. Burundi, a country of east-central Africa, for instance, does not have lions in its national parks. It　40　wants to have lions reintroduced back into its national parks. The reason is that when you take the lion out of the equation(平衡), suddenly you get all　41　things start happening with the balance of　42　. For example, you get too many prey(猎物)species, like giraffes and zebras.

　　The United Nations' Food and Agriculture Organization says　43　animals are threatened when farmers try to　44　their plants or animals.

　　Rene Czudek works for the UN agency. He says his organization has　45　a human-wild life tool kit(成套工具)that some countries are using to reduce　46__　between humans and wildlife. "In fact, the tool kit is a kind of instrument that extension workers can use with the　47　--explain to them how wildlife behaves, and then show them what the risky behaviours are, and how they should　48　their fields accordingly, "Mr. Czudek said.

29. A. disappearing　　 B. attacking 　　　 C. changing　　　　D. arriving

30. A. waiting for　　　B. cheering for C. competing for　 D. looking for

31. A. train　　 B. observe　　 C. catch　　 D. save

32. A. giraffes　 B. lions C. zebras　 D. antelopes

33. A. instead of　 B. because of C. in place of　 D. in spite of

34. A. known　　 B. studied C. caused　 D. prevented

35. A. less　　　 B. worse C. more　　　 D. better

36. A. environment　 B. background C. industry D. position

37. A. immediate　 B. possible C. magical　 D. disastrous

38. A. usually　 B. finally C. gradually　 D. particularly

39. A. acceptable　　 B. worrying C. reasonable　 D. necessary

40. A. frequently　 B. simply C. naturally　 D. desperately

41. A. small　 B. similar C. strange　 D. ideal