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课前作业是在正式上课之前,要求学生对某一科学内容在预习课文的基础上,通过查阅资料、尝试实验等方法,完成教师课前设计的作业,它为课堂教学作好充分准备,打下了良好的基础。
Before class, homework is required before the formal class, requiring students to complete a pre-class design homework by reading materials and experimenting on the basis of pre-reading the text of a certain scientific content. It is fully prepared for the classroom teaching and laid down A good foundation.