A quarter of students report that their use of digital devices during class causes their grades to suffer.
四分之一的学生报告说，在课上使用数码设备导致他们的成绩变差。
Those who require their phones for some need must get their parents' and teachers' approval and must hand their phones over during class time.
那些因为某些需要得带手机的学生必须取得父母和老师的同意，并且必须在上课期间上交手机。
To measure the effects of Internet-based distractions during class, researchers evaluated 500 students taking an introductory psychology class at Michigan State University.
为了衡量上课期间上网对学生注意力分散的影响，研究人员对密歇根州立大学修读心理学入门课程的500名学生进行了评估。
One 2013 study of college students found that 80% of students use their phones or laptops during class, with the average student checking their digital device 11 times in a typical class.
2013年的一项关于大学生的研究发现，有80%的学生在课上使用手机或笔记本电脑，在一堂平常的课上，平均每个学生查看数码设备的次数高达11次。
It is impolite to interrupt teachers with jokes during class.
在上课时用玩笑话打断老师是不礼貌的。
If the student breaks the rule and uses his or her phone during class, the student will be warned.
如果学生违反规定，在课堂上使用手机，将受到警告。
In lots of schools, if a student needs to bring a phone to school, his or her parents will have to write a statement and make sure that the phone is turned off during class.
在很多学校，如果学生需要带手机来学校，他或她的父母必须写一份声明，确保手机在课堂上是关闭的。
上课时讲话是很没礼貌的。
他上课时睡着了。
No talking is allowed during class.
上课时不准说话。
Take notes during class instruction.
做好课堂笔记。
If you must leave during class, do so quietly.
如果你不得不在上课时离开，那就悄悄地走。
Dan could hardly concentrate during class.
阿丹在课堂上难以专心。
The teacher punished me for talking during class.
老师因为我上课讲话而处罚了我。
Class participation is very important during class.
在课堂上积极参与是非常重要的。
Sue： Maybe you should help him rewrite this song during class……
苏：或许你应该在上课时帮他重新写这首歌……
We can hear them laughing during class and recess all the time.
无论课上还是课间，我们总是不难听到孩子们的笑声。
Taking notes during class helps me remember what the teacher said.
课堂上做笔记帮助我记住老师的讲课。
To our great amusement, the teacher sang a funny song during class.
老师在课堂上唱了一首滑稽的歌，令我们非常愉快。
Keep to yourself during class if the other kids are fooling around.
课堂上如果别的小朋友起哄玩闹的话，你还是要乖乖坐好。
Paul: I think the teacher saw you sending text messages during class.
保罗：我觉得老师刚刚有看到你上课传简讯耶。
Please be on time for classes and listen carefully during class times.
请按课表时间准时参加课程，上课时请认真听讲。
It is considered impolite in the U.S. to eat, drink or chew gum during class.
上课的时候吃零食、喝饮料或者嚼口香糖，这在美国被认为是不礼貌的行为。
If you have to leave during class, please try to minimize the disruption.
如果你不得不在上课时离开，请尽量减小中途退出的影响。
A professor should not be annoyed with me if I receive an important call during class.
在课堂上如果我接了一个重要的电话，教授也不该对我恼怒。
You may bring a bottle of water to class. You may not leave for a drink of water during class.
上课时请准备水壶，课堂中不能为了喝水离开教室。
Ms. : With a hall pass, you can go to the ladies' room or wherever you need to go during class time.
渥克老师：拿着通行证，在上课时间你可以去洗手间或任何你需要去的地方。
Ms. : With a hall pass, you can go to the ladies' room or wherever you need to go during class time.
渥克老师：拿着通行证，在上课时间你可以去洗手间或任何你需要去的地方。
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