A
Forests are home to many wild animals. The population explosion and more human activities in the forests have caused many of their native species(物种)to become endangered.
Giant Panda
The giant panda, one of the most recognizable endangered species, is a large, docile species of bear native to the forest of eastern China, Myanmar and Vietnam. Because of its limited diet- the panda’s main source of food is bamboo- the species is limited in its habitat to areas where bamboo is available. Now the species only can be found today in 20 small patches of forest at the western edge of its historic range.
Gray and Red Wolves
The gray wolf, which once ranged from the East Coast of America to the West, and south to Mexico, now has a population of only 5, 000 in the lower 48 states, mostly in the Rocky Mountains. The red wolf, native to the southeastern United States, was declared extinct(已灭绝的) in the wild in 1980.
Red-Crowned Crane
The red-crowned crane is native to Japan, Korea and eastern China. Agricultural expansion and deforestation (森林砍伐) in these areas have removed a great deal of the marshes and forests that are the crane’ s primary habitats. For a time, the crane was thought to have completely disappeared from Japan, but the recent discovery of cranes in Japanese marshlands has restarted conservation efforts. Today, around 2, 500 cranes live in the wild, including 1,000 in Japan.
1. What has caused the wild animals to become endangered?
A. Global warming.
B. International trade.
C. Environmental pollution.
D. Human activities.
2. Which species is native to North America?
A. European Mink.
B. Red Wolves
C. Red － Crowned Crane.
D. Giant Panda.
3. What is the purpose of the text?
A. To call for more efforts to protect forests
B. To study the living habits of wild animals.
C. To introduce some endangered species.
D. To find ways to protect wild animals.
【答案】1. D 2. B 3. C
【解析】
本文是说明文。本文介绍了大熊猫、灰狼和红狼、丹顶鹤等濒临灭绝的野生动物。
【1题详解】
细节理解题。根据第一段的“The population explosion and more human activities in the forests have caused many of their native species(物种)to become endangered.( 人口膨胀和森林中更多的人类活动已经导致许多本地物种濒临灭绝。)”可知，人类活动导致野生动物成为濒危的。故D项正确。
【2题详解】
细节理解题。根据第三段中的“The red wolf, native to the southeastern United States, was declared extinct(已灭绝的) in the wild in 1980.”可知，红狼原产于美国东南部，是北美的本土动物，故B项正确。
【3题详解】
推理判断题。根据第一段中的“The population explosion and more human activities in the forests have caused many of their native species(物种)to become endangered.”可知，人口膨胀和森林中更多的人类活动已经导致许多本地物种濒临灭绝,以及下文就介绍了大熊猫、灰狼和红狼、丹顶鹤等几种濒临灭绝的野生动物,由此可知本文的目的是介绍一些濒临灭绝的物种。故C项正确。
