值班生应该在上课前分发练习本。
The student on duty should hand out the exercise books before class.
这些学生总是在课前唱一首英文歌。
开始上大学时，大多数学生都喜欢在真正开课前在校园里呆上一周。
When starting college, most students enjoy a week's stay on campus before classes actually begin.
如果你有其他的日常习惯，如锻炼身体、与家人通电话，你要在开课前将这些习惯融入到日常生活中，这样就能更好地结合这些习惯来进行日程安排。
If you have other daily routines, such as exercising or talking on the phone with family, work those into your day-to-day life before classes start so that you get a better idea of how they fit in with your schedule.
他讲课前总是先让学生做预备练习题。
就在上课前，玛丽摔碎了她的眼镜。
我的生物老师怀特先生在上课前五分钟来到了教室。
My biology teacher, Mr. White, came to the classroom five minutes before the class began.
每次数学课前，我都看到她要么在前面辅导同学，要么就是在把全班的作业整理在一起。
Before each math class, I see her either helping the class at the front, or bringing the homework of the class together.
你们当然需要参与到讨论中来，并做好充分的课前准备。
Of course you will come to your discussion sections in the same state of joyful preparedness.
你们手头上东西，都是我们在上课前买到的。
So, these things here that you have in your hand, is the results of my spontaneously going to staples before class.
评论和作业应在下次课前一天中午以前完成。
Critiques and assignments should be completed by noon, the day before class meets.
我希望你们上课前，阅读这个时已经注意到了。
I hope some of you noticed this when you were reading over this before you came to class.
在课前他和它的同桌同学把那篇对话练习了好几遍。
He practised the dialogue with his deskmate several times before class.
昨天上课前，她走到爱德华先生的讲台前说：“早安，吉姆。”
Yesterday, before class starts, she walk up to Mr. Edward's desk and goes, ‘Good morning, Jim.’
玛丽清楚的知道她应该在每次上课前阅读布置的作业。
Mary knows very well she should read an assignment before every lecture.
我希望下周全班的孩子都能做好课前准备，带好书来上课。
Now next week I do hope that all the students will bring their books and be prepared.
一天早上上课前我的物理老师走到我的寄物柜前，让我去他教室。
One morning my physics teacher walked up to me at my locker before school and asked me to step inside his classroom.
“所以你的问题是他在空道课前不愿意做家庭作业，”咨询师说。
"So your concern was that he wouldn't get his homework done before his karate class," said the counselor.
我建议你做功课前先复习一下课文，这样你可以避免犯许多错误。
I suggest your reviewing the texts before you do the exercises. In this way you can avoid making many mistakes.
有时会有同学在早上上课前来找我帮忙解答数学或科学作业的问题。
Other students would sometimes come to me in the morning before school to ask for help with their math or science homework.
上课铃响了，孩子们还和课前一样吵闹，因为有些老师还没有到教室。
The pre-class clamour of children does not stop with the bell because some teachers have not turned up yet.
每次新课前他要花25小时准备。设计每个细节，去掉每句多余的话。
He said he spent 25 hours preparing each new lecture, choreographing every detail and stripping out every extra sentence.
好好规划时间，以免你无法及时在上课前冲洗好幻灯片并携带至课堂。
Plan your time so that you have a roll of slide film developed in time for class.
作为交换，孩子们保证在课堂上完成作业，作好课前准备，并为考试复习功课。
In return, the pupils promise to get their work done in class, to come to school prepared, and to revise for tests.
这需要反复的阅读和再阅读，所以我建议你们在周一来上课前，要读七十五遍。
It repays innumerable readings and re-readings, so I urge you to read it seventy-five times, let's say, before you come to class on Monday.
此外，如果你未提前预习当天的课堂讨论，无论什么理由，请在开始上课前通知我。
Also, please notify me at the beginning of the class if, for whatever reason, you are unprepared to participate in class discussion that day.
如果你觉得教授罗列的材料难以理解时，那么先在课前通过阅读课本预习一下概念。
If you have a hard time understanding the material as the professor presents it, prep the concepts before class by reading the textbook.
如果你觉得教授罗列的材料难以理解时，那么先在课前通过阅读课本预习一下概念。
If you have a hard time understanding the material as the professor presents it, prep the concepts before class by reading the textbook.
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