职称英语考试

【单选题】Conservation or wastedEffort The black robin(旅鸫)is one of the world’s rarest birds．It is a small，wild bird，and it lives only on the island of Little Mangere，off the coast of New Zealan
D、In 1967 there were about fifty black robins there；in 1977 there were fewer than ten．Energetic steps are being taken to preserve the black robin．——(47)The idea is tobuy another island nearby as a special home，a“reserve”，for threatened wild life，including black robins．The organizers say that Little Mangere should then be restocked(重新准备)with the robin’s foo
D、Thousands of the required plants are at present being cultivated in New Zealan
D、Is all this concern a waste of human effort what is reasonable and what is unreasonable _____ (48)Are we losing our sense of In the earth’s long，long past hundreds of kinds of creatures have evolved，risen to a degree of success and died out．In the long，long future there will be many new and different forms of life．Those creatures that adapt themselves successfully to what the earth offers will survive for along time．_____ (49)This is nature’s proven method of operation．The rule of selection--“the survival of the fittest”—-is the one by which human beings have themselves arrived on the scene．We，being ode of the most adaptable creatures the earth has yet produced，may last longer than most．_____ (50)You may take it as another rule that when，at last．human beings show signs of dying out，no other creature will extend a paw(爪)to postpone our departure．On the contrary, we will be hurried out． Life seems to have grown too tough for black robins．I leave you to judge whether we should try to do anything about it．
A、Some creatures，certain small animals，insects and birds，will almost certainly outlast(比……长久)man，for they seem even more adaptable．B、Those that fail to meet the challenges will disappear early．C、Detailed studies are going on，and a public appeal for money has been made．
D、Both represent orders in the classification of lifeE、Is it any business of ours whether the black robin survives or dies out F These are the only black robins left in the world
网考网参考答案：C
网考网解析：
第二段第一句说，人们正采取一些积极的办法来保护这种鸟类。采取什么办法呢 选项C说，一方面详细的研究工作正在进行，另一方面人们已经募集了许多钱来从事保护工作。选项c正是对本段第一句的说明或解释，故选项C为正确答案。 ． document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>