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 本文主要講述的就是在非洲草原的生物鏈中大象的重要作用,它不斷的尋找食物拓寬了其它動(dòng)物的生存空間等.
解答 32.C,主旨大意題.本文主要講述的就是在非洲草原的生物鏈中大象的重要作用,它不斷的尋找食物拓寬了其它動(dòng)物的生存空間等.故C正確.
33.B,細(xì)節(jié)理解題,根據(jù)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,熱帶雨林伸展的枝干擋住陽光是自然的狀態(tài),而不是非洲大象影響的,故答案為B.
34.A,推理判斷題,根據(jù)文章句子As a big planteater,it largely shapes the forestandsavanna (稀樹草原) surroundings in which it lives,therefore setting the terms of existence for millions of other animals that live in its habitat.說明非洲大象塑造了草原的環(huán)境,也決定了其它的動(dòng)物的生存的條件.故A項(xiàng)正確.
35.D,推理判斷題,本文主要通過描述大象的行為帶來的具體的影響以及對這些影響的原因的解釋.故D正確.
點(diǎn)評 解答任務(wù)型閱讀理解題,首先對原文材料迅速瀏覽,掌握全文的主旨大意.因?yàn)殚喿x理解題一般沒有標(biāo)題,所以,速讀全文,抓住中心主旨很有必要,在速讀的過程中,應(yīng)盡可能多地捕獲信息材料.其次,細(xì)讀題材,各個(gè)擊破.掌握全文的大意之后,細(xì)細(xì)閱讀每篇材料后的問題,弄清每題要求后,帶著問題,再回到原文中去尋找、捕獲有關(guān)信息.最后,要善于抓住每段的主題句,閱讀時(shí),要有較強(qiáng)的針對性.對于捕獲到的信息,要做認(rèn)真分析,仔細(xì)推敲,理解透徹,只有這樣,針對題目要求,才能做到穩(wěn)、準(zhǔn).