题目内容
9.The largest land animal remaining on the earth,the African elephant is of much importance to African ecosystem.Unlike other animals,the African elephant is to a great extent the builder of its environment.As a giant plant-eater,it significantly shapes the forest-ad-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.It is the elephant's great desire for food that makes it both a disturber of the environment and an important builder of its habitat.In its continuous search for the 300pounds of plants it must have every day,it kills small trees and underbushes,as well as pulls branches off big trees.This results in numerous open spaces in not only deep tropical foress but also the woodlands that cover part of the African savannas.In these open spaces are numerous plants in various stages of growth,which attract a variety of other plant-eaters.
Take the rain forests for example.In their natural state,the spreading branches overhead shut out sunlight and prevent the growth of plants on the forest floor.By pulling down trees and eating plants,elephants create open spaces,allowing nw plants to grow on the forest floor.In such situations,the forests become suitable for large-hoofed plant-eaters to move around and for small-sized plant-eaters to obtain their food as well.
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 forest and savanna,greatly changing and worsening the whole ecosystem.
32.What is the passage mainly about?C
A.Disappearance of African elephants.
B.Forests and savannas as habitats for African elephants.
C.The effect of African elephants'search for food.
D.The eating habit of African elephants.
33.The African elephant influences the ecosystem in the following ways except thatB.
A.it creates open areas in deep tropical forests as well as woodlands
B.it puls off the branches and leaves,shutting out the sunshine
C.its eating habit can be made use of by large-hoofed and small-sized animals
D.it encourages some kinds of plants growing in an indirect way
34.What does the underlined phrase"setting the terms"most probably mean?A
A.Deciding the conditions.
B.Worsening the state.
C.Improving the quality.
D.Fixing the time.
35.The passage is developed mainly byD.
A.presenting the changes in time order
B.making comparisons and giving examples
C.classifying similarities and differences
D.showing the effect and then explaining the reasons.
分析 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等.
解答 32.C,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等.故C正确.
33.B,细节理解题,根据句子Take the rain forests for example.In their natural state,the spreading branches overhead shut out sunlight and prevent the growth of plants on the forest floor可知,热带雨林伸展的枝干挡住阳光是自然的状态,而不是非洲大象影响的,故答案为B.
34.A,推理判断题,根据文章句子As a big planteater,it largely shapes the forestandsavanna (稀树草原) surroundings in which it lives,therefore setting the terms of existence for millions of other animals that live in its habitat.说明非洲大象塑造了草原的环境,也决定了其它的动物的生存的条件.故A项正确.
35.D,推理判断题,本文主要通过描述大象的行为带来的具体的影响以及对这些影响的原因的解释.故D正确.
点评 解答任务型阅读理解题,首先对原文材料迅速浏览,掌握全文的主旨大意.因为阅读理解题一般没有标题,所以,速读全文,抓住中心主旨很有必要,在速读的过程中,应尽可能多地捕获信息材料.其次,细读题材,各个击破.掌握全文的大意之后,细细阅读每篇材料后的问题,弄清每题要求后,带着问题,再回到原文中去寻找、捕获有关信息.最后,要善于抓住每段的主题句,阅读时,要有较强的针对性.对于捕获到的信息,要做认真分析,仔细推敲,理解透彻,只有这样,针对题目要求,才能做到稳、准.