题目内容：

It’s the end of class. When the bell rings, students of Luohu Foreign Languages School in Shenzhen quickly take out their cell-phones. They want to log on (登录) to their microblogs (微博) to check the funny things that have happened in the last hour.    Since last year, the trend (潮流) of microblogging has swept the country. Recent surveys show that most students in middle schools have a microblog, and some even update(更新) their blogs over five times per day.

“We learn many fresh and interesting things on microblogs and they have become popular topics in class,” said Liang Jianmin, 14, a student at Harbin No 3 Middle School. “If you do not know about them, you are out of the loop (被排挤在圈外).” It is also a great place for students to let out stress. “My parents always ask me to study hard, and encourage me before exams, but actually it adds pressure (压力),” said Zhang Yazhe, 15, a student in Luohu Foreign Languages School. “When I share these feelings on my microblog, I get many replies from friends in the same situation, which makes me feel better.”  But parents are worried that microblogging could be a waste of time. Some misleading（误导性的） messages may even cause danger to kids, they said.

Shen Mingde, a professor at the China Education Association, suggests parents not worry too much as long as kids are not crazy about microblogging. Instead, it can become a window for parents to understand their children.

“If parents can read their children’s microblogs, they’ll know their thoughts, thus (因而) leading to better communication and solutions to problems,” he said. Micro blogging tips for kids

★1. Don’t microblog for more than one hour a day.

★2. Never microblog in class.

★3. Try to talk face to face with people instead of just microblogging.

★4. Be critical (批判性的). Don’t trust all the messages on a microblog.

1.Why do the students quickly take out their cellphones after class?

A. Because they want to phone their parents to tell them the funny things.

B. Because they want to listen to music.

C. Because they want to log on to their microblogs.

D. Because they want to surf the Internet to check the funny things.

2.Liang Jianmin thinks people are out of the loop if they do not know________.

A. the popular topics in class

B. the popular songs in class

C. fresh and interesting things on the Internet

D. many fresh and interesting things on TV

3.What does the underlined phrase "let out" mean in Chinese?

A.  释放        B.  泄露      C.  熄灭       D. 开脱

4.What does Shen Mingde think of microbiogging?

A. It could be a waste of time.

B. Some misleading messages may even cause danger to kids.

C. It can become a window for parents to understand their kids.

D.Parents should not worry too much if kids are crazy about microblogging.

5.Which statement is true according to the passage?

A. Kids should microblog for more than one hour a day.

B.Kids should try to talk face to face with people instead of just microblogging.

C. The trend of microblogging has swept the country since five years ago.

D. Kids should trust all the messages on a microblog.