D．The eating habit of African elephants.

　　答案　C

　　解析　主旨大意题。本文主要讲述的就是在非洲草原的生物链中大象的重要作用。它不断的寻找食物拓宽了其它动物的生存空间。故C正确。

　　2．What does the underlined phrase “setting the terms” most probably mean?

　　A．Fixing the time.

　　B．Worsening the state.

　　C．Improving the quality.

　　D．Deciding the conditions.

　　答案　D

　　解析　词义猜测题。根据第一段中的“As a big plant­eater，it largely shapes the forest and savanna(大草原) surroundings in which it lives，therefore setting the terms of existence for millions of other animals that live in its habitat.”可知非洲大象塑造了草原的环境，也决定了其它动物的生存条件。故D项正确。

　　3．What do we know about the open spaces in the passage?

　　A．They result from the destruction of rain forests.

　　B．They provide food mainly for African elephants.

　　C．They are home to many endangered animals.

　　D．They are attractive to plant­eating animals of different kinds.

　　答案　D

　　解析　细节理解题。根据第二段中的“This results in numerous open spaces in both deep tropical forests and in the woodlands that cover part of the African savannas.In these open spaces are numerous plants in various stages of growth that attract a variety of other plant­eaters.”可知开放的空间对于其它的食草动物也很重要。故D项正确。

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