也就是说，如果学生处于i的水平，那么教师提问时输入的内容应该略高于i+

That is, if the student is at level i, then the contents of the input when the teacher questions should be slightly higher than i + 1, to enable students to accept and absorb the language input generated after the acquisition, encourage students to reach the level of automatic level i + 1.

That is to say, if the student is at the i level, then the teacher's question input should be slightly higher than i1, so that students accept and absorb language input after the acquisition, so that the student's level automatically reach the i1 level.

That is to say, if the students are at the level of I, the input content of the teacher's questions should be slightly higher than I + 1, so that the students can accept and absorb the language input and generate acquisition, so that the students' level can automatically reach the level of I + 1.<br>