SD冠军锦标赛｜美国藤校演讲与辩论赛中国选拔赛

Botany Botany, the study of plants, occupies a peculiar position in the history of human knowledge. For many thousands of years it was the one field of awareness about which humans had anything more than the vaguest of insights. It is impossible to know today just what our Stone Age ancestors knew about plants, but form what we can observe of pre- industrial societies that s...

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British Columbia British Columbia is the third largest Canadian provinces, both in area and population. It is nearly 1.5 times as large as Texas, and extends 800 miles(1,280km) north from the United States border. It includes Canada’s entire west coast and the islands just off the coast. Most of British Columbia is mountainous, with long rugged ranges running north an...

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Lesson1 The Language of Music A painter hangs his or her finished pictures on a wall, and everyone can see it. A composer writes a work, but no one can hear it until it is performed. Professional singers and players have great responsibilities, for the composer is utterly dependent on them. A student of music needs as long and as arduous a training to become a performer as a...

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The origin of Refrigerators By the mid-nineteenth century, the term “icebox” had entered the American language, but ice was still only beginning to affect the diet of ordinary citizens in the United States. The ice trade grew with the growth of cities. Ice was used in hotels, taverns, and hospitals, and by some forward-looking city dealers in fresh meat, fresh fi...

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President Bush Meets with 2008 Bassmaster Classic Champion and 2008 Women’s Bassmaster Tour Champion 　THE PRESIDENT: I’ve got the fishing champs of this year. And, Judy, thanks for coming. She is from Many, Louisiana. She won the Women’s Bassmaster. And Alton Jones from Waco, Texas, won the Bassmaster Classic. 　And I thought it was important to welcome th...

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