一、导入的“有效性”——良好的开端有效的导入是课堂教学取得成功的重要前提。高效的导入能营造浓厚的学习氛围,提高学生参与英语学习的热情,化解学习内容的难度,实现由旧知向新知的过渡,从而达到优化英语教学的目的。如,有位姓洪的老 First, the import “validity ” - a good start Effective introduction is an important prerequisite for classroom teaching success. Efficient import can create a strong learning atmosphere, improve students’ enthusiasm to participate in English learning, ease the difficulty of learning content, and realize the transition from old knowledge to new knowledge so as to achieve the goal of optimizing English teaching. For example, there is a surname Hong old