In fact,it had been more than 20 years since anyone had seen an Ili pika.But Li Weidong,who first discovered the animal,and a team of volunteers combed the mountains looking for the animals.2.

　　“They found it hiding behind a rock,and they realized they had found the pika,”Tatsuya Shin,a Chinese naturalist said.

　　Li was studying diseases in a mountainous region of northwest China when he first discovered the 8-inch mammal in 1983.3.　 In 1985,he found two more pikas.When researchers at the Chinese Academy of Sciences took a closer look at Li’s discovery,they confirmed that it was indeed a new species. 

　　In the early 1990s,scientists estimated(估计) that there were about 2,000 Ili pikas running across mountain cliffs in China.Now there are probably fewer than 1,000.Li thinks that the Ili pika population has decreased by nearly 70 percent since he saw the first one in 1983.

　　“This tiny species could be extinct anytime,”Li said.“4.　” 

　　Big changes to the Ili pika habitat are probably contributing to the pikas’ lower population.In addition,Ili pikas don’t reproduce often,and other animals are eating grass where they live.Changes in local temperatures have driven Ili pikas to higher elevations(海拔) in the mountains.

　　Li and others are encouraging wildlife groups to help protect this creature.Li searches full-time for Ili pikas.5.　 Li is also working to create a wildlife reserve to help protect Ili pikas. 

【2017届高考英语一轮复习考点规范练：30 必修5 Module 6（外研版含解析）】相关文章：

★ 2017届高考英语二轮复习课时训练：11（含解析）

★ 【北师大版】2014届高考英语一轮复习指导课时作业：Unit 11 A卷 Word版含解析

★ 湖南省长沙县实验中学2016届高三英语二轮复习书面表达复习重点话题指导专题01 写作技巧（教师版）

★ 四川省2016届高考英语一轮复习课时作业（26） Module 2 A Job Worth Doing 外研版必修5

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (58)

★ 湖南省岳阳市2014高考英语一轮单项选择训练题（15）及答案

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (46)

★ 【北京专用】2014届高考英语一轮复习方案课时作业：必修5 Unit 5 First aid

★ 2014届高考英语一轮复习课时作业(四)必修1Module 4《A Social Survey—My Neighbourhood》（外研版）

★ 2017届高考英语（江苏专用）二轮复习高考单词5大记忆法课件：4.联想记忆法