Scientists are worried now that the African elephant has become an endangered species. If the elephant dies out, scientists say, many other animals will also disappear from vast areas of forests and savannas, greatly changing and worsening the whole ecosystem.

　　语篇解读：本文是一篇说明文，文章主要介绍了非洲象对非洲大草原生态系统的巨大影响。

　　1．It can be inferred from the passage that the African elephant ________.

　　A．is now the largest animal on the earth

　　B．determines the living conditions of millions of other animals in its habitat

　　C．has far－reaching impacts on its habitat as a giant animal－eater

　　D．makes great contributions to its environment like other animals

　　答案：B　推理判断题。根据文章第一段中第三句的“As a giant plant－eater,

　　it

　　significantly

　　shapes

　　the

　　forest－and－savanna surroundings in which it lives, therefore deciding the conditions of existence for millions of other animals that live in its habitat”可推知，非洲象作为巨大的食草动物，它决定着栖息地的许多其他动物的生活条件，即B项正确。

　　2．The African elephant influences the ecosystem in the following ways except that ________.

　　A．it creates open areas in deep tropical forests as well as woodlands

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