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聽力文本：
Passage One
短文一
Do you know that bees can dance?
你知道蜜蜂可以跳舞嗎？
Well, neither did scientists, until the 1960s.
就連科學家也是在20世紀60年代才發現的。
That's when a German scientist, named Karl von Frisch, noticed something truly remarkable.
德國科學家 Karl von Frisch注意到了這一重大發現。
As he was observing honeybees, he noticed that some of the bees, which he called scout bees, flew out of the hive to look for food.
對蜜蜂進行觀察時，他發現有些偵察蜂離開蜂巢外出覓食。
When a scout found a site where there was food, it flew back to the beehive and started dancing.
一旦發現食物源，偵察蜂會立即飛回蜂巢并且開始跳舞。
This dance somehow told the other honeybees where the food was,
這支舞蹈意在告訴其他蜜蜂食物的來源，
because after the dance, some of the bees flew from the hive straight to the site of the food.
因為舞蹈結束后，有的蜜蜂會徑直飛向食物所在之處。
Karl called the bees that collect the food forager bees.
Karl將這種蜜蜂成為覓食蜂。
He thought the scout bee's dance told the forager bees three things:
Karl認為偵察蜂通過舞蹈傳遞給覓食蜂三個信息，
first, the smell of the food it had found;
其一是食物的味道，
second, which direction to fly to reach the food;
其二是食物的大致方向，
and third, the distance of the food site from the beehive.
其三食物離蜂巢的距離。
Karl won the 1973 Nobel Prize for this discovery, but many scientists were skeptical of his theory.
憑借這一發現，Karl獲得1973年的諾貝爾獎，但仍然有許多科學家質疑他的理論。
They didn't believe it was the dance that led the forager bees to food.
他們不相信覓食蜂是通過舞蹈發現食物的。
Instead, they thought it might be, oh, the smell of the food on the dancing bee,
相反，他們認為覓食蜂可能聞到了偵察蜂身上的食物氣味，
or maybe that they just followed the scout back to the food site.
或者只是跟著偵察蜂發現食物的。
Well, very recently, some British scientists used a new type of radar to prove that Karl's theory was indeed correct.
然而，近日英國科學家使用新型雷達進行研究，證實了 Karl 理論的正確性。
It is the dance that communicates this information to other bees.
偵察蜂的確是通過舞蹈將信息傳達給其他蜜蜂的。
Questions 16 to 18 are based on the passage you have just heard.
問題16至問題18是基于你剛剛聽到的這篇文章
Question 16. What can be learned about the German scientist, Karl von Frisch?
問題16 文章如何介紹德國科學家Karl von Frisch？
Question 17. According to Karl, what information do the scout bees tell forager bees?
問題17 偵察蜂通過舞蹈傳遞給覓食蜂什么信息？
Question 18. What made people believe the correctness of Karl's theory?
問題18 為何人們最終相信Karl的理論？
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