-
(单词翻译:双击或拖选)
There are thousands of pigeons in any big city in the world. But did you know that this common bird is able to find its way home from even a hundreds of kilometers away? Just how pigeons find their way home is a bit of mystery. Some people think that they use landmarks4. That is the pigeon1 knows what the land is like from the air and it uses this like a map. A landmark3 in Sydeny for example, is the Opera House, which can easily be seen from a long way off. Other possibilities are that pigeons use the position of the sun to work out directions or that they have some kind of built in compass. For quite a few years now, scientists have been caring out experiements on homing pigeons, but they still aren't sure how pigeons find their way home. It seems likely, however, that pigeons like airline pilots use a number of different message to guide them on their long distance journeys. Perhaps, one day we'll learn their secret.
1 pigeon | |
n.鸽子 | |
参考例句: |
|
|
2 pigeons | |
n. 鸽子 名词pigeon的复数形式 | |
参考例句: |
|
|
3 landmark | |
n.陆标,划时代的事,地界标 | |
参考例句: |
|
|
4 landmarks | |
n.陆标( landmark的名词复数 );目标;(标志重要阶段的)里程碑 ~ (in sth);有历史意义的建筑物(或遗址) | |
参考例句: |
|
|