The characteristics of micro-course determine that it can't be popularized as traditional teaching at present, but it can be initially realized in qualified schools. However, due to various reasons (the restriction of teaching progress, the restriction of school finance or education system, the opposition of parents and education), it is still difficult to carry out. In practical teaching, we can use appropriate quotations to strengthen the key points and difficulties in learning, so that students can learn knowledge vividly in videos, and they can remember it for a long time and be impressed.