Extensive listening is most helpful for building:

1. Intensive listening may better develop specific aspects of listening ability. 2. Extensive listening is more effective in building fluency and maintaining learner motivation. 3. Spelling, rule memory and handwriting are not its main benefits. 4. So its main benefits are fluency and motivation. **Why not the others:** Exact spelling skill, memory for rules and handwriting speed are not benefits of extensive listening. _Source: Wikipedia, "Listening", section "Listening in language learning" (revision 1373457535)_