Sample item
Listen to the lecture extract, then re-tell the main points.
Urban heat islands form when built surfaces absorb and re-radiate solar energy. Cities can run several degrees warmer than surrounding countryside, and the difference peaks at night. Tree canopy and reflective roofing both reduce the effect, but canopy also lowers energy demand.
Notes should read roughly: heat island — built surfaces absorb/re-radiate — cities warmer, peaks at night — canopy + reflective roofs — canopy also cuts energy. Five fragments, forty seconds of speech.