题目内容

【题目】The Cuban iguana is a species of lizard（蜥蜴） of the iguana family. It is the largest of the West Indian rock iguanas, one of the most endangered groups of lizards. This species with red eyes and a thick tail is one of the largest lizards in the Caribbean.

The Cuban iguana is primarily herbivorous; 95% of its diet consists of the leaves, flowers and fruits from as many as 30 plant species, including the seaside rock bush and various grasses. However, Cuban iguanas occasionally consume animal matter, and individuals have been observed eating the dead flesh of birds, fish and crabs. The researchers wrote that quite a few people on Isla Magueyes could have caused this incident.

The Cuban iguana is distributed throughout the rocky southern coastal areas of mainland Cuba and its surrounding islands with a wild population booming on Isla Magueyes, Puerto Rico. It is also found on the Cayman Islands of Little Cayman and Cayman Brac, where a separate subspecies occurs. Females guard their nest sites and often nest in sites half destroyed by Cuban crocodiles. To avoid the attack from them, the Cuban iguana often makes its home within or near prickly-pear cacti（仙人掌）.

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.

【1】The underlined word "herbivorous" （Paragraph 2） probably means .

A. dangerous B. gentle

C. plant-eating D. flesh-eating

【2】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.

【3】How many reasons are mentioned for the habitat destruction?

A. Two. B. Three. C. Four. D. Five.

【4】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.

D. To draw people's attention to the endangered Cuban iguana.

【答案】

【1】C

【2】D

【3】B

【4】A

【解析】

试题分析：文章主要向读者介绍了古巴蓝鬣蜥，包括它的外形、生活习性、分布、现存状况等。蓝鬣蜥是西印度岩鬣蜥蜴中体型最大的一种。

【1】C猜测词意题。根据“95% of its diet consists of the leaves, flowers and fruits from as many as 30 plant species, including the seaside rock bush and various grasses”可知，Cuban iguana(蓝鬣蜥)是食草动物，其95%的食物都来自30多种植物的叶子、花蕊、果实等。故选C。

【2】D细节理解题。根据第三段“by Cuban crocodiles. To avoid the attack from them, the Cuban iguana often makes its home within or near prickly-pear cacti”可知，蓝鬣蜥在在仙人掌里或仙人掌附件筑巢是为了避开鳄鱼的袭击，故选D。

【3】B细节理解题。根据最后一段“caused by the over consuming of farm animals, housing development, and the building of tourist resorts on the beaches”可知，导致栖息地遭到破坏的原因有三个，故选B。

【4】A根据第一段“The Cuban iguana is a species of lizard（蜥蜴） of the iguana family. It is the largest of...This species with red eyes...”第二段“The Cuban iguana is primarily herbivorous;”和第三段“The Cuban iguana is distributed throughout the rocky...”及最后一段“In general the species is in decline...”可知，文章主要介绍了古巴蓝鬣蜥的情况，包括它的外形、生活习性、分布、现存状况等，作者只是提到蓝鬣蜥的数量在下降，而未提到其正在濒临灭绝，故选A。

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