Is Star Trek: Deep Space Nine good for learning English?
Star Trek: Deep Space Nine works best for very advanced learners who can follow fast and complex English. The complexity of the plot makes listening more challenging because learners also need to keep track of what is happening. Learners will hear plenty of useful natural English, but some lines may still require a second listen. With the dialogue moving at a natural rhythm, viewers should catch most of it, although a few moments may still be challenging. If your English is close to C1/C2, Star Trek: Deep Space Nine can be useful for building confidence with more complex narratives.
