阅读理解。 Mobile phone has become a problem

题目：

阅读理解。

     Mobile phone has become a problem for high schools. Some high-school students in Australia are

not allowed to carry mobile phones during school hours.

     Mobile phone used among children has become  a  problem for the school years.  Several children

have got mobile phones as Christmas presents, and more students will want them.

     Marry Brown, a headmaster, said that mobile phone was a distraction(分心事) to  students during

school hours and it also gave teachers so much trouble in their classrooms. Teachers  were also saying

that sometimes students might use phone messages to cheat during exams.

     She said some schools had tried to ban(禁止) mobile phones. 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 there was a good reason

that they could leave their phones at school  offices.  They  also  said  they  were easily lost  and were a

distraction for 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.

1. Some high schools in Australia have stopped students from carrying mobile phones __.

A. because they are students      

B. when they are free

C. when they are at school        

D. because they are children

2. What does the word "cheat" mean in Chinese in this passage? 

A. 聊天        

B. 核对        

C. 查询    

D. 作弊

3. Some children get mobile phones from _____ as presents.    

A. the makers and sellers        

B. the passers-by and strangers

C. their parents and friends        

D. some mobile phone user

4. Some parents felt unhappy because they couldn't _____ during school hours.

A. use their mobile phones          

B. leave their mobile phones in the school office

C. help the teachers with their work  

D. get in touch with their children

5. The passage tells us that _____. 

A. students shouldn't have mobile phones at school except for some special reasons

B. it is important to ban students from using mobile phones at school

C. some parents felt unhappy because they couldn't use their phones at home

D. parents should teach their children how to use mobile phones during school hours.