第三部分：阅读理解（共20小题，每题2分，满分40分）
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
Do you want to have a mobile phone? Have you had a mobile phone already? Nowadays more and more students have their own mobile phones, and mobile phone use has become a problem for middle schools. Some middle schools in China have banned students from carrying mobile phones during school hours.
Mobile phone use among children has become a big problem for the school this year. Some children have got mobile phones as birthday gifts, and more students want them.
Wang Pi, an official, said, “Mobile phone use is a distraction (分散注意力的东西) to students during school hours and it also gives teachers so much trouble in their classrooms.” Teachers were also saying that sometimes students might use phone messages to cheat during exams.
Wang Pi, also said some schools has tried to ban mobile phones, but some parents felt unhappy because they couldn’t get in touch with their children.
Many teachers said students should not have mobile phones at school, but if their was a good reason, they could leave their phones at school offices. They also said there were many reasons why the students should not have mobile phones at school. They were easy to lose and were a distraction from studies.
Many people say that they understand why parents would want their children to have phones, but they think schools should let the students know when they can use their mobile phones.
56．Some middle schools have banned students from carrying mobile phones         .
A．because they are students B．because they don’t earn money
C．when they are at school   D．when they are free
57．Some parents felt unhappy because they couldn’t        during school hours.
A．help the teachers with their work    B．leave their mobile phones at school offices
C．use their mobile phones   D．get in touch with their children
58．The three underlined words “they” in Para. 5 refer to       .
A．teachers; students; mobile phones   B．teachers; mobile phones; students
C．students; teachers; mobile phones   D．students; mobile phones; teachers
59．The passage tells us that         .
A．it is impossible to ban students from using mobile phones at school
B．some parents felt unhappy because they couldn’t use their phones at school
C．students shouldn’t have mobile phones at school except for some special reasons
D．parents should teach their children how to use mobile phones during school hours