Using the past simple and past perfect
Uncover the surprising stories behind accidental inventions and sudden breakthroughs.
Topic
Many famous inventions happened because of an unexpected mistake or a sudden lucky moment. Looking back at the events that led to these breakthroughs shows how everyday problems turn into great discoveries.
Level
B1
Grammar form
Past perfect simple
Target vocabulary
unexpected
breakthrough
equipment
realized
permanently
damaging
Teaching notes
Included
Answers
Included
Listening track