这些学生总是在课前唱一首英文歌。
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.
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.
就在上课前，玛丽摔碎了她的眼镜。
他讲课前总是先让学生做预备练习题。
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.
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.
我们强烈建议您在课前预习上课内容。
We strongly recommend that you read about a topic before it is covered in lectures.
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.
每节英语课前请同学们准备好英语书和英文书写本。
Make sure you bring your English text book and your English writing book to every class.
课前阅读可以让你熟悉书本的主旨以及书本的框架。
Pre-reading will help you to become familiar with the book's main ideas and general structure.
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.
如果你在课前都有预习教材，每堂课你都会有最大的收获。
You're likely to get the most out of each lecture if you read the material beforehand.
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.
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.
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.
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.
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.
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.
课前他们先给学生提供阅读材料和需要完成的测验，以便他们上课时准备好进行讨论。
They gave them readings and quizzes to finish before class so they would come prepared to discuss the material.
每周课前老师都会发相关资料给我们，让我们准备，然后上课时再进行小组与小组间的谈判活动。
Before class, the teacher will hand some relevant materials to us and require us to prepare well for the course.
尽管每一次教课的内容对我们来说并不是很难，但每一次上课前我们都很认真地进行备课。
Though it is not hard for us to prepare the lessons, we all take it seriously every time.
上课前，我们得知来自纽约一所中学的一些外国老师将参观我们班，我们感到兴奋和紧张。
We got the news before the English class that some foreign teachers from a middle school in New York would visit our class. We felt excited and nervous.
上课前，我们得知来自纽约一所中学的一些外国老师将参观我们班，我们感到兴奋和紧张。
We got the news before the English class that some foreign teachers from a middle school in New York would visit our class. We felt excited and nervous.
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