Passage Two
A "blogger" is a person who writes on an Internet computer website called a "blog". [29]The word "blog" is a short way of saying Web log, or personal website. Anyone can start a blog, and they can write about anything they like. There are millions of blogs on the Internet today. They provide news, information and ideas to many people who read them. They contain links to other websites. And they provide a place for people to write their ideas and react to the ideas of others. A research company called Perseus has studied more than 3,000 Web logs. [30]It says that blogs are most popular with teenage girls. They use them to let their friends know what is happening in their lives. The study also says that more than 100,000 bloggers stopped taking part in the activity after a year. However, some people develop serious blogs to present political and other ideas. At the same time, some long-standing blogs have ended. Last week, blogging leader Dave Winer closed his free blog service, weblogs.com. He says the site became too costly to continue. He started the blog four years ago, and thousands of people had written on it. They are now upset because they did not know that the site was closing. [31]One blog that is still going strong is called Rebecca's Pocket. Rebecca Blood created the website in 1999. She wrote about the history of blogs on the site. That article led to a book called The Weblog Handbook. It has been translated into four languages so far.

Questions 29 to 31 are based on the passage you have just heard.
29. What's a blog?
正确答案：B
解析：细节题。录音第2句就介绍了什么是blog，故答案为B。A是对blogger的定义。
30. Why are blogs most popular with teenage girls?
正确答案：A
解析：本题考查对细节的记忆。边听边记与选项有关的信息对解答本题很关键。录音中提到blogs最受十几岁女孩的欢迎，之后马上说明原因“让朋友们知道她们生活中的点点滴滴”，即A。B的主语They指代Some people而不是teenage girl。
31. What is true about Rebecca?
正确答案：C
解析：录音结尾处专门介绍了Rebecca建立的个人网站——Rebecca's Pocket。能够与原文所有信息匹配起来的是C。A中动作的主语应是Dave Winer；B也存在指代错误，可排除；D的主语应是The Weblog Handbook而非Her diary。