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A、Important battles fought in the Pacific War. B、Decoding of secret messages in war times. C、A military code that was never brok
A、Important battles fought in the Pacific War. B、Decoding of secret messages in war times. C、A military code that was never brok
admin
2019-02-27
38
问题
[9] Many people enjoy secret codes. The harder the code, the more some people will try to figure it out. In war time, codes are especially important. They help army send news about battles and the size of enemy forces. Neither side wants its codes broken by the other. [11] One very important code was never broken. It was used during World War Ⅱ by the Americans. It was a spoken code never written down. And it was developed and used by Navajo Indians. They were called “the Navajo code talkers”. The Navajos created the code in their own language. Navajo is hard to learn, and only a few people know it. So it was pretty certain that the enemy would not be able to understand the code talkers. In addition, the talkers used code words. They called a submarine an iron fish and a small bomb thrown by hand a potato. If they wanted to spell something, they used code words for letters of the Alphabet. For instance, the letter A was ant or apple or ax.
The code talkers worked mostly in the islands in the Pacific. One or two would be assigned to a group of soldiers. They would send messages by field telephone to the code talker in the next group. And he would relay the information to his commander. [10] The code talkers played an important part in several battles. They helped troops coordinate their movements and attacks. After the war, the U.S. government honored them for what they had accomplished. Theirs was the most successful wartime code ever used.
Questions 9 to 11 are based on the passage you have just heard.
9.What does the speaker say many people enjoy doing?
10.What do we learn about the Navajo code talkers?
11.What is the speaker mainly talking about?
选项
A、Important battles fought in the Pacific War.
B、Decoding of secret messages in war times.
C、A military code that was never broken.
D、Navajo Indians’ contribution to code breaking.
答案
C
解析
浏览四个选项,四个选项都是名词短语且表述的是四个不同的方面,由此可以推测,该题可能涉及文章的主旨大意。题干问的是讲话者主要讲的是什么。短文中提到,有一种很重要的密码从来没被破解,它被美国人用于第二次世界大战中。紧接着就详细描述了这种密码,故答案为C(一种从未被破解的军事密码)。A项(太平洋战争中的重要战役)、B项(战争时期秘密信息的破解)和D项(纳瓦霍印第安人对破解密码的贡献)均不是文章的主要内容,故排除。
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0
大学英语六级
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