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初中化学课是学生启蒙阶段的化学学习，而绪言课又是启蒙阶段的开篇课。绪言课教学质量的高低对学生会后学习化学的兴趣和求知欲的影响见很大的。要想有一个好的开端，主要取决于教师的教学。学生在学习化学之前，虽然在日常生活和学习中接触过大量的化学事实，使用过大量的化
The junior chemistry class is a chemistry study at the beginning of the student’s enlightenment phase, and the introduction class is the opening lesson of the enlightenment stage. The quality of the teaching of the introductory class has a great influence on the interest and curiosity of learning chemistry after the student meeting. To have a good start depends mainly on the teacher’s teaching. Before learning chemistry, students used a lot of chemical facts in daily life and learning.