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Passage One
短文一
Many people enjoy secret codes.
许多人喜欢密码。
The harder the code,the more some people will try to figure it out.
密码越难，他们就越想要破译出来。
In wartime, codes are especially important.
战时，密码尤其重要。
They help army send news about battles and the size of enemy forces.
军队利用密码发送战争和敌军消息。
Neither side wants its code broken by the other.
双方都不希望自己的密码被对方破解。
One very important code was never broken. It was used during World War fl by the Americans.
二战期间，美国的一种密码从未被敌方破译。
It was a spoken code, never written down, and it was developed and used by Navajo Indians.
这种密码由印第安部落纳瓦霍人开发和使用，没有书面形式，只是在纳瓦霍人之间口口相传。
They were called the Navajo code talkers. The Navajos created the code in their own language.
这些人被称为纳瓦霍密码员，纳瓦霍密码以纳瓦霍人的方言为基础发展而来。
Navajo is hard to learn and only a few people know it.
纳瓦霍语很难学，只有少数人知道。
So it was pretty certain that the enemy would not be able to understand the code talkers.
所以可以肯定的是，敌人无法破解。
In addition, the talkers used code words.
此外，他们还使用暗号。
They called a submarine an iron fish and a small bomb thrown by hand a potato.
他们把潜水艇叫做“铁鱼”，把用手榴弹叫做“土豆”。
If they wanted to spell something, they used code words for letters of the Alphabet.
如果他们想要说什么东西，就用字母来代替。
For instance,the letter A was ant or apple or ax.
例如，字母A代表蚂蚁、苹果或斧头。
The code talkers worked mostly in the islands in the Pacific.
密码员主要在太平洋的岛屿上工作。
One or two would be assigned to a group of soldiers.
一组有一两个士兵。
They would send messages by field telephone to the code talker in the next group.
他们将通过现场电话给下一组的密码员发送消息。
And he would relay the information to his commander.
下一组的密码员会把情报传给指挥官。
The code talkers played an important part in several battles.
密码员在在战争中起着重要作用。
They helped troops coordinate their movements and attacks.
他们帮助部队协调行动和攻击。
After the war,the U. S. government honored them for what they had accomplished.
战后，美国政府对其密码表示自豪。
Theirs was the most successful wartime code ever used.
这是有史以来最成功的战时密码。
Questions 9 to 11 are based on the passage you have just heard.
请根据你听到的短文回答9-11题
9.What does the speaker say many people enjoy doing?
问题9：说话者说很多人喜欢做什么?
10.What do we learn about the Navajo code talkers?
问题10：关于纳瓦霍族的密码员我们了解到什么?
11.What is the speaker mainly talking about?
问题11：说话者主要说了什么?
