Homing pigeons are placed in a training program from about the time they are twenty-eight days of age. They are taught to enter the cage through a trap and to exercise above and around the loft(鸽棚) , and gradually they are taken away for short distances in willow baskets and released. They are then expected to find their way home in the shortest possible time.
In their training flights or in actual races, the birds are taken to prearranged distant points and released to find their way back to their own lofts. Once the birds are liberated, their owners, who are standing by at the home lofts, anxiously watch the sky for the return of their entries. Since time is of the essence, the speed with which the birds can be induced to enter the loft trap may make the difference between gaining a win or a second place.
The head of a homing pigeon is comparatively small, but its brain is one quarter larger than that of the ordinary pigeon. The homing pigeon is very intelligent and will persevere to the point of stubbornness; some have been known to fly a hundred miles off course to avoid a storm.
Some homing pigeon experts claim that this bird is gifted with a form of built-in radar that helps it find its own loft after hours of flight, for hidden under the head feathers are two very sensitive ears, while the sharp, prominent eyes can see great distances in daytime.
Why do homing pigeons fly home? They are not unique in this inherent skill; it is found in most migratory birds, in bees, ants, toads, and even turtles, which have been known to travel hundreds of miles to return to their homes. But in the animal world, the homing pigeon alone can be trusted with its freedom and trained to carry out the missions that people demand.
21. This passage is mainly about_______.
A. homing pigeons and their training
B. how to buy a homing pigeon
C. protection of homing pigeons against the threat of extinction
D. liberation of homing pigeons
22. According to the passage, what happens to homing pigeons when they are about a month old?
A. They are kept in a trap.
B. They enter their first race.
C. They begin a training program.
D. They get their wings clipped and marked.
23. According to the passage, the difference between a homing pigeon and an ordinary one is_______.
A. the span of the wings B. the shape of the eyes
C. the texture of the feathers D. the size of the brain
24. The author mentions all of the following attributes that enable a homing pigeon to
return home EXCEPT_______.
A. instinct B. air sacs
C. sensitive ears D. good eyes
25. Why does the author mention bees, ants, toads, and turtles in the last paragraph?
A. To describe some unusual kinds of pets.
B. To measure distances traveled by various animals.
C. To compare their home-finding abilities with those of homing pigeons.
D. To interest the reader in learning about other animals.
21. A 22. C 23. D 24. B 25. C
创新英语教学的三种策略
激活表现欲,适应新课改
英语教学中的创新
巧教小学高年级学生记单词的探究
小学英语教学随笔(2)
兴趣是最好的老师
英文话剧剧本:大脚灰姑娘
美丽的错误
《逃课》大学英文话剧6人剧本
5人英语话剧剧本《除夕》
5人英语话剧剧本《正义必胜》
小学低年级英语教学的点滴思考
浅谈小学英语情景教学的几点做法
英语剧本:A Family一个家 4人
10人左右英语话剧剧本:唐伯虎点秋香
多媒体与现代英语教学
农村中学生厌学英语的原因及对策
英语教学随笔--层次英语教学
浅谈初中英语教学中的小组合作学习
重视信息技术与英语教学的整合作用
5-6人英语话剧剧本《Good Morning, Tim》
英语教学随笔之六
高职英语专业综合英语教学模式初探
“I can climb ?”课后随笔
《animals》教学随笔
高中生英语学习管理策略培养探析
初中六、七年级英语词汇教学实践与随笔
“鸡尾酒法”在英语教学中的运用
《奥赛罗》9人英语剧本
10人-11人英语短话剧剧本:防空洞
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |