Question

　　The black robin（知更鸟）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 Zealand. In 1967 there were about fifty black robins there; in 1977 there were fewer than ten. These are the only black robins left in the world. The island has many other birds, of course, of different kinds, large and small; these seem to multiply very happily.

　　Steps are being taken to guard those remaining and to increase their number. Detailed studies are going on, and a public appeal for money has been made. The idea is to buy another island nearby as a special home for wild life, including black robins. The organizers say that Little Mangere should then be supplied with the robin's food——it eats only one kind of seed. Thousands of the required plants are at present being grown in New Zealand. The public appeal is aimed at the conscience（良心）of mankind, so that the wild black robin will not die out or disappear from the earth in our time at least.

　　Is all this concern a waste of human effort? Is it any business of ours whether the black robin survives or dies out? Are we losing our sense of what is reasonable and what is unreasonable?

　　In the earth's long, long past hundreds of kinds of creatures have evolved（进化）, 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 a long time. Those that fail to meet the challenges will disappear early. That is Nature's proven method of operation.

　　The rule of selection——“the survival of the fittest”——is the one by which man has himself arrived on the scene. He, being one of the most adaptable creatures the earth has yet produced, may last longer than most. You may take it as another rule that when, at last, man shows signs of dying out, no other creature will extend a paw to postpone（推迟）his departure. For Nature, though fair, is a hard-hearted mistress. She has no favourites.

　　Life seems to have grown too hard for black robins. I leave you to judge whether we should try to do something about it.

(1) The black robins are getting fewer and fewer because________.

[　　]

A. there are too many other kinds of birds on the island

B．of lack of food

C．they can't multiply

D．there is no room for them on the island

(2) The creatures that _______ can survive.

[　　]

A．come across some challenges in their lives

B．don't come across any challenges in their lives

C．are protected by mankind

D．fit the surroundings perfectly

(3) What's the text mainly about?

[　　]

A．Nature is unfair to man.

B．What the earth offers makes man survive.

C．Everything will be selected by Nature including man.

D．Small animals will certainly survive for a longer time than man.

Answer 1

答案：B:D;B
解析：

(1) 由第二段“…it eats only one kind of seed.”可知。 (2) 由第四段“Those creatures that adapt…for a long time.”可知。 (3) 综括全文，表达了“适者生存”的主题。