Mobile phones are becoming more and more popular not only with____(grown-up) but also with students. Meanwhile,they also____(become) a problem for middle schools in the past few years.Some children have got mobile phones____Christmas or birthday gifts,and more will still want them.

    Many like SMS because it is____(ease) and quick.Some parents felt happy because they could communicate with their children.Some teachers said mobile phone use____(be) a distraction（分心的事）to students during school hours and____also gave them much trouble in their classrooms.Sometimes students might use phone messages____(cheat) during exams.A new study found that some teenagers sending messages in class even hurt their fingers because they can't stop____(send) SMS.

    Many teachers suggested that students should not have phones at school,but if there was a good reason,they could leave their phones at school office.And even they can use the telephone in the teachers' office instead.Many people think they understand the reason____parents would want their children to have them,but they agree schools should tell the students____(use) their mobile phones at proper times.

著名学者柏杨认为，“嬴政大帝给中国历代王朝奠定了权威性的规范，使得以后几百个帝王只能在他所想到的圈子里作小小的修正，而无力作巨大改变。”其中“权威性的规范”主要指的是（  ）

从《白桦林的低语》中的“____”这句话,我感受到了看林人对工作的兢兢业业、恪尽职守;从“____”这句话,我感觉林业工人能够苦中作乐,从枯燥的生活中发现诗意。