First, interest must be aroused in learning English. Without passion in English, they will learn it passively and will not receive good result. So I will arrange different activities to attract their attention.
Second, they need to learn knowledge step by step. So I will impart knowledge from input to output, namely, from presentation to practice and production. Output is essential, because a word can truly leave a deep impression on students when they use it. By doing this, they will absorb the knowledge gradually.
So in my opinion, students can improve their English ability through the above two steps.