Do you know Weibo? Do you write a Weibo? If you don’t, you are “out” ! Weibo means micro-blog. People may spend much time writing a blog, but it takes a little time to write a micro-blog. Why? Because every message on a micro-blog is less than 140 words.

Micro-blog started in the USA. It came to China in 2009 and it has developed very fast. In 2011, the number of Chinese micro-bloggers grew to 300 million. Now more and more people are interested in writing micro-blogs. For many micro-blog users, it is a great way of learning the freshest news, talking with friends and sharing (分享)different kinds of information, including news, daily life, pictures, music and so on. Many stars and famous people also write micro-blogs and share good things with their fans. And they can send micro-blog through computer or mobile phones anytime, anywhere.

It is easy and fast to send a message on a micro-blog. However, this can also lead to problems and even cause panic (恐怖) . For example, when the big earthquake and tsunami(海啸) hit Japan in March, 2011, message like “salt can protect(保护) people from radiation(辐射) ” were hot on micro-blogs. It soon caused a crazy buying of salt, Later people realized it was just a rumor(谣言).

In a word, micro-blog has played a new role in the life of Chinese people.

根据短文内容，选出最佳选项。

(　　 ) 1. People can write 　　　　　 words on a micro-blog.

A. more than 140　 B. more than 300　 C. less than 140　 D. at most 1000

(　　 ) 2. 　　　　　 , the number of Chinese micro-bloggers grew to300 million.

A. In 2009　　　　 B. In 2010　　　 C. In 2011　　　 D. In 2012

(　　 ) 3. Micro-blog users can’t 　　　　　through micro-blog.

A. learn the latest news　　 B. play computer games with friends

C. talk with friends　　　 D. share different kinds of information

(　　 ) 4. Which of the following is TRUE?

A. Micro-blog appeared in China only one year ago but it has developed rapidly.

B. Writing a micro-blog is a personal action and can’t lead to problems and cause panic

C. As a popular thing, micro-blog has its advantages and disadvantages.

D. More and more Chinese show great interest in micro-blog because it started in the USA.

(　　 ) 5. We can probably find this passage in 　　　　 .

A. an advertisement　　　　 B. a music magazine

C. a film magazine　　　　 D. a newspaper