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英语六级听力确实有一定难度，所以这就更需要同学们多加练习。听力材料是很好的英语六级听力练习素材。现在距离的英语六级考试还有三个多月的时间，大家只要从现在开始坚持练习，一定会出现奇迹的。下面是小编为大家英语六级听力练习：常速英语，供各位练习。 The Panama Canal turns 100 this week. Officially opened in 1914, the 77-kilometer channel joins the Atlantic and Pacific Ocean at the isthmus of Panama. It made the world smaller, creating a shortcut for cargo ships that ply their trade from east and west. But 100 years later the canal is straining from the demands of expanding global trade. It may also be facing some serious competition as it navigates the next 100 years. Taking over 30 years to build, tens of thousands of workers - and more than 27 million kilograms of dynamite - it is considered one of the biggest engineering feats of the 20th century. The Panama Canal is one of those phenomenal moments in history. A terrific example of engineering and technological strength of the United States, and really the coming of age of the United States as a global power, said University of Maryland Professor Julie Greene, author of the book Canal Builders. But the work exacted a heavy toll. By the time the first ship crossed the canal, nearly 26,000 workers had died, some from accidents, many from malaria. | 
