D. Saving lives brings people a sense of happiness.

　　参考答案1-4 DBCD

　　阅读下列四篇短文，从每小题后所给的A,B,C或D四个选项中，选出最佳选项。

　　A recent study of ancient and modern elephants has come up with the unexpected conclusion that the African elephant is divided into two distinct (不同的) species.

　　The discovery was made by researchers at York and Harvard Universities when they were examining the genetic relationship between the ancient woolly mammoth and mastodon to modern elephants—the Asian elephant, African forest elephant, and African savanna elephant.

　　Once they obtained DNA sequences (序列) from two fossils (化石), mammoths and mastodons, the team compared them with DNA from modern elephants. They found to their amazement that modern forest and savanna elephants are as distinct from each other as Asian elephants and mammoths.

　　The scientists used detailed genetic analysis to prove that the African savanna elephant and the African forest elephant have been distinct species for several million years. The divergence of the two species took place around the time of the divergence of Asian elephants and woolly mammoths. This result amazed all the scientists.

　　There has long been debate in the scientific community that the two might be separate species, but this is the most convincing scientific evidence so far that they are indeed different species.

【2016届湖南长沙市高考英语二轮阅读理解训练（33）（含答案）】相关文章：

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (51)

★ 2016届湖南长沙市高考英语二轮阅读理解训练（23）（含答案）

★ 重庆市2014高考英语阅读理解一轮（精品）训练题（3）附答案

★ 2017届高考英语二轮复习大题冲关秘籍完形填空之记叙文：创新押题（含解析）

★ 2017届高考英语二轮复习课时训练：22（含解析）

★ 【三维设计】2017届高考英语（江苏专用）二轮复习阅读理解解题技法示范课件：1

★ 贵州省贵阳市2014高考英语（新人教版）一轮阅读训练（8）附答案

★ 贵州省贵阳市2014高考英语（新人教版）一轮阅读训练（15）附答案

★ 2017年高考英语二轮复习精品资料：专题14 阅读理解（教学案）（原卷版）

★ 2017届高考英语二轮复习大题冲关秘籍完形填空之记叙文：解题技巧（含解析）