It’s the lunchtime break at Shanghai Xianxia Middle School. No mobile phones can be heard ringing anywhere. The common sight of crowds of children chatting on their phones or sending short messages has disappeared.
A grade-2 student said, “I couldn’t listen carefully during classes if the mobile phone was with me. I couldn’t help checking if there were messages or missed phone calls. I even played games on the phone sometimes.”
The school says they feel the ban(禁令) is necessary to keep order in class. They even gave out an open letter to remind parents not to let their children bring mobile phones to school. More than 96 percent of parents say they welcome the school decision. The school is also being flexible (灵活的) in implementing the ban. Those students who live far from school are allowed to bring mobile phones to contact their parents. But they still have to turn them off in classrooms.
Medical experts have also welcomed the school decision. They say using mobile phones too often can cause many psychological problems in teenage students.
The grade-2 student thought that _______.

A．the mobile phone should be on during classes

B．it is good to play cell phone games sometimes

C．the mobile phone is helpful to her studies

D．it is no good using the cell phone at school

According to the passage, the students use their mobile phones except _______.

A．contacting their parents

B．cheating in exams

C．sending short messages

D．playing games

Which of the following is NOT true according to the passage?

A．All the parents welcome the school decision.

B．Some students can bring mobile phones to school.

C．Medical experts think the school decision is good.

D．No one is allowed to use mobile phones in the classrooms

What does the underlined word “implementing” in paragraph 3 mean?

A．调整

B．公布

C．执行

D．张贴

The passage mainly tells us _______.

A．the mobile phone is a big trouble to teenage students

B．the use of the mobile phone can cause mental problems

C．about a ban on the mobile phone in a middle school

D．a story happening at Shanghai Xianxia Middle School