Passage Two
The podcast revolution is erupting all over the world-and seemingly all at once. [29]Why is it getting so popular? The technology is simple to master and podcasting software is inexpensive, sometimes even free. Two Chinese students are receiving international fame as millions of people around the world watch them podcast from their dormitory. They are called the Back Dormitory Boys, and they specialize in mouthing Backstreet Boys' songs. Although most people in China don't have iPods, podcasting is sweeping the country. [30]The Back Dormitory Boys are among the thousands of Chinese who are putting their own homemade audio and video up on the Internet for all to enjoy. "You just gotta love two guys making a fool of themselves, and gaining international attention," said "Good Morning America" technology expert Becky Worley. The Internet is becoming more and more popular with China's youth; [31]about 60 percent of the 100 million Chinese who use the Internet are under the age of 24. "This generation grew up with values that are very, very similar to their peers in the United States," said Huang Hung, publisher of Time Out Beijing. "You're going to see a complete change in the cultural landscape of China." Already, podcasting has taken off in the United States. Earlier this year, 19-year-old Gary Brolsma skyrocketed to Internet fame with what he calls his "Numa Numa" dance-a lip sync to a Romanian pop song.

Questions 29 to 31 are based on the passage you have just heard.
29. Why is podcasting sweeping the world?
正确答案：B
解析：细节题。文章开篇提出设问句“Why it is getting so popular?”；紧接着给出了解释：播客技术简单而且价廉。
30. What does podcasting mean according to the speaker?
正确答案：A
解析：细节题。说话者以“后舍男孩”为例，解释了类似“后舍男孩”把自录的影像材料放到因特网上的行为是播客行为。故A为正确答案。
31. Why does the speaker hold that the Internetis very popular among young people in China?
正确答案：A
解析：细节兼数字题。在说到播客在中国年轻人中流行时，说话者给出了一个具体数据加以说明：在1亿的中国网民中大约有60%是在24岁以下的。