In general, the passive voice is introduced in the passive sentence by being rewritten from the active voice in the corresponding active sentence. So, changing the voice means changing the subject obligatorily. In effect, the learners are apt to regard the passive voice as the passive sentence itself. And, the passive voice is very difficult to understand, if there is no corresponding active sentence. In this paper, several problems are pointed out which there seem to be in teaching the passive voice. And, a new proposal of teaching the passive voice ispresented from the following points of view: what is "voice"?. what relation exists between subject, and action or state the verb expresses?, what phenomenon does one express at what view-point?, and, what kind of information should be inserted into the lexical item "verb" in the lexicon? The most fundamental point to be asserted is that the change of voice is the reversal of the phenomenon.
