[单项选择]

Suppose a teacher can not tell teaching from learning, he or she will probably just do the thing for the students which can be done by the students themselves. To teach reading does not simply mean to distribute reading material to the students. Nor it indicates spending a lot of efforts on doing reading excises. Douglas holds that it is impossible to teach reading directly.
The two processes of teaching and learning are different in their kind and purpose. For teaching, the main purpose is to create the conditions, which will help students to design the most efficient way for themselves to read. Teaching is a kind of public activity, which can be observed and judged. For learning, it is a job of the mind. Learning to read means that the students need to understand the world from printed language. The process is not open for public scrutiny.
So it is important for the teacher and learner to interchange their roles, which will help the students to quest for knowled
A. Teachers can design the most efficient reading system for students.
B. Teachers can enable students to develop their own way of reading.
C. Teachers can make the teaching activities public.
D. Teachers can improve the school condition for the students.