6．In Eastern Europe，blue jeans symbolize （象征） American culture and"the good life"．In Spain they are known as"cowboys"．In China，jeans are known as"niuzaiku"，also，"cowboy trousers"，which means they are connected with the American West cowboy culture and outdoor work．
Jeans are usually made from denim （粗布），but may also be made from other materials．The earliest known cloth for jeans was a thick cotton cloth from the Indians．At first they were working clothes．They became popular among teenagers in the 1950s．Today jeans are a very popular form of casual wear around the world and come in many styles and colors．
Jeans were first made in Genoa in Italy．The trousers were made for the Genoese navy （海军） because they needed trousers which could be worn wet or dry，and whose legs could be easily rolled up while the men were cleaning the ships．These jeans would be washed by pulling them in large fishing nets behind the ship，and the sea water would make them white．
In the 1850s Levi Strauss，a business man living in San Francisco，was selling blue jeans under the"Levi's"name to the coal workers of California．
During World War II，the coal workers liked jeans very much because they were strong and did not tear easily．In the 1950s，jeans became popular with young people in the United States．Wearing of blue jeans by teenagers was the symbol of rebels （反叛者） in TV programs and movies．Some cinemas and restaurants refused to let people in if they wore blue jeans．In the 1980s，jeans finally became high fashion clothing，when famous designers started making their own styles of jeans，with their own labels on them．Sales of jeans went up and up．
29．From the first paragraph we know thatD．
A．cowboys wear jeans only
B．cowboys live a good life
C．American culture is cowboy culture
D．cowboy culture is usually related to the West of America
30．Jeans were first made inA．
A．Italy B．America C．Spain D．China
31．From Paragraph 4 we know that"Levi's"wasB．
A．the name of a worker
B．the brand （名牌） of a kind of jeans
C．the name of a kind of cloth
D．the nickname of a businessman
32．Why the people who wore blue jeans were refused to go into the cinema in the 1950s？D
A．Because jeans were made for workers．
B．Because jeans were made of denim．
C．Because it was during the time of war．
D．Because wearing jeans was the symbol of rebels．
分析 本文讲述的牛仔裤的由来和发展
解答 29．D细节理解题．由第一段"they are connected with the American West cowboy culture and outdoor work．"他们和美国西部牛仔文化和户外工作紧密相连，故选D．
30．A细节理解题．由第三段"Jeans were first made in Genoa in Italy．"牛仔裤最初制作于意大利的热内亚可知选A．
31．B细节理解题．由第四段"In the 1850s Levi Strauss，a business man living in San Francisco，was selling blue jeans under the"Levi's"name to the coal workers of California．"在19世纪50年代李维斯．施特劳斯，居住在三藩市的一位商人以"Levi's"为名向加州的煤矿工人售卖蓝色牛仔裤．可知"Levi's"是一个商品品牌．故可知答案B正确．
32．D细节理解题．由最后一段"In the 1950s，jeans became popular with young people in the United States．Wearing of blue jeans by teenagers was the symbol of rebels （反叛者） in TV programmes and movies．"20世纪50年代，牛仔裤盛行于美国的年轻人中．在电视剧和电影里，年轻人穿牛仔裤成为了一种反叛的标志，可知选D．
点评 本文是一篇历史文化类阅读理解，题目涉及多道细节理解题，做题时结合原文和题目有针对性的找出相关语句进行仔细分析，结合选项选出正确答案．推理判断题也是要在抓住关键句子的基础上合理的分析才能得出正确答案，切忌胡乱猜测，一定要做到有理有据
