Question

Next autumn when you see wild geese (大雁) heading south for the winter flying in a V formation you might think about what scientists have discovered as to why they fly that way.

As each bird flaps (拍打) its wings, it creates an uplift (上升力) for the bird immediately following. By flying in a V formation the whole group adds at least 71% greater flying range (航程) than if each bird flies on its own.

People who share a common direction and sense of community can get where they are going more quickly and easily because they are traveling on the push of one another.

When a wild goose falls out of the formation, it suddenly feels the drag and resistance (阻力) of trying to go alone and quickly tries to get back into the formation to take advantage of the lifting power of the bird in front. When the head goose gets tired, it flies back into the formation and another goose flies to the front. It is wise to take turns doing difficult jobs whether it be people or wild geese flying south.

Wild geese honk (發(fā)出雁叫聲) from behind to inspire those up front to keep up their speed. What can we learn from this?

When a wild goose gets sick or wounded by gunshots, and falls out of the formation, two other geese will fall out with that goose and follow it down to lend help and protection. They will stay with the fallen goose until it is able to fly or until it dies, and only then will they go on with their own or with another formation to catch up with their group.

1.Wild geese fly in a V formation in order to ________.

A. protect themselves from danger

B. fly more quickly and easily

C. help the sick and wounded

D. fly much higher in the sky

2.If a wild goose falls out of the V formation, _______.

A. the other geese will call it back

B. the other geese will fly with it

C. it will try to get back into the group

D. it will fall behind the whole group

3. What can we learn from the fifth paragraph?

A. We should try to lead others to move forward.

B. We should give people facing difficulties encouragement.

C. We should believe in those who offer us help.

D. We should care more about the old and sick.

4. When a wild goose becomes sick or is wounded, ____.

A. it will be left alone and will fall on the ground

B. the whole group will stop flying

C. two other geese will stay with it to offer help

D. other geese will honk to give it encouragement

Answer 1

1.B

2.C

3.B

4.C

【解析】

試題分析：本文是一篇說(shuō)明文。介紹了大雁南飛習(xí)慣排成V字行隊(duì)伍，關(guān)于這個(gè)課題，科學(xué)家作了調(diào)查研究，發(fā)現(xiàn)大雁的飛行方向與其群體感和群體方向有關(guān)。

1.B細(xì)節(jié)辨析題。By flying in a V formation the whole group adds at least 71% greater flying range (航程) than if each bird flies on its own.“以V字飛行能使整個(gè)團(tuán)體比單個(gè)的行程多至少百分之71”；故答案為B。

2.C細(xì)節(jié)辨析題。When a wild goose falls out of the formation, it suddenly feels the drag and resistance (阻力) of trying to go alone and quickly tries to get back into the formation to take advantage of the lifting power of the bird in front. “如果一只野生大雁脫離了V字型隊(duì)伍，它會(huì)突然感受到空氣的阻力，并且很快回到隊(duì)伍以利用領(lǐng)頭鳥(niǎo)的抬升力�！惫蚀鸢笧镃。

3.B推理判斷題。根據(jù)第五段Wild geese honk (發(fā)出雁叫聲) from behind to inspire those up front to keep up their speed.“野生大雁從后面發(fā)出叫聲鼓勵(lì)前面的大雁保持速度�！备鶕�(jù)句意聯(lián)想到人類(lèi)社會(huì)，可知答案為B。

4.When a wild goose gets sick or wounded by gunshots, and falls out of the formation, two other geese will fall out with that goose and follow it down to lend help and protection.“ 一旦有只野雁生病或是受了槍傷跟不上隊(duì)伍，那么兩只野雁將會(huì)退出隊(duì)伍陪伴這只野雁，并給予幫助和保護(hù)�！惫蚀鸢笧镃。

考點(diǎn)：說(shuō)明文閱讀