2. 外语
  3. Elephant, a very large animal with a long flexible nose to pick up things, live in layered societies. The basic family unit is f

Elephant, a very large animal with a long flexible nose to pick up things, live in layered societies. The basic family unit is f

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问题    Elephant, a very large animal with a long flexible nose to pick up things, live in layered societies. The basic family unit is formed of small groups of adult females, who are related to each other, and their young of both sexes. The females remain in their families for life. They’re highly social, but male elephants leave their families at about 14 years of age. They travel alone or gather round in small, loose groups with other males, occasionally joining a family on a temporary basis. When males are ready to mate, they wander widely, searching for receptive females.
   The family unit, on the other hand, often contains three generations, and it can remain stable for decades, or even centuries. Then each family associates with between one and five other families, probably consisting of their more distant relatives. Scientists call these groups of families"bond groups" , and bond groups belong, in turn, to even larger groups, called clans.
   So elephants have a complex social structure. And like other social animals they have to be able to communicate.  
Which of the following statements is TRUE according to the passage?
选项 A、Male elephants can join a family for a short period of time.
B、Male elephants can stay in a family forever.
C、Male elephants cannot travel with other elephants.
D、Male elephants can stay with their distant relatives.
答案A
解析 细节理解题，可使用排除法。根据文章内容male elephants leave their families at about 14 years of age，推出B项错误。根据They travel alone or gather round in small，loose groups with other males推出C项错误。根据第一段描述和第二段中Then each family associates with between one and five other families，probably consisting of their more distant relatives可知，是female elephants和它们的远亲住在一起而不是male elephants，故D项错误。所以选A项。
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