In general the species is in decline, more quickly on the mainland than on the outlying islands. One of the reasons for their decline is habitat destruction caused by the over consuming of farm animals, housing development, and the building of tourist resorts on the beaches where the animals prefer to build their nests. Although the wild population is in decline, the numbers of iguanas have been sharply increased as a result of captive-breeding（圈养）and other conservation programs.

　　35.The underlined word "herbivorous" （Paragraph 2） probably means

　　.

　　A. dangerous

　　B. gentle

　　C. plant-eating

　　D. flesh-eating

　　36.Why does the Cuban iguana build its nest near prickly-pear cacti?

　　A. To keep itself cool.

　　B. To get the food easily.

　　C. To stay away from people.

　　D. To avoid crocodiles' attack.

　　37.How many reasons are mentioned for the habitat destruction?

　　A. Two.

　　B. Three.

　　C. Four.

　　D. Five.

　　38.What's the author's purpose of writing the text?

　　A. To give us a brief introduction to the Cuban iguana.

　　B. To show he is concerned about the Cuban iguana.

　　C. To explain reasons for the Cuban iguana's decline.

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