(
课件网) Unit 5 Hot Snake Lesson 10 Grammar What Happened I stayed at this hotel five years ago.（teach, park, live） Grammar Have you ever stayed here Completed action She’s been making dresses for years. Continuing to present Tense Key words Past Tense yesterday Present Perfect since Present Perfect Continuous for+doing Forest fires are often caused by broken glass or by cigarette ends which people carelessly throw away. Yesterday the firefighters examined the ground carefully, but were not able to find any broken glass. They were also quite sure that a cigarette end did not start the fire. This morning, however, a firefighter accidentally discovered the cause. He noticed the remains of a snake which was wound round the electric wires of a 16,000-volt power line. In this way, he was able to solve the mystery. The explanation was simple but very unusual. A bird had snatched up the snake from the ground and then dropped it on to the wires. The snake then wound itself round the wires. When it did so, it sent sparks down to the ground and these immediately started a fire. Retell the story 1.firefighters put out fire in California 2.since then find out fire began 3.forest fires glass cigarette ends 4.examined couldn't find broken glass 5.quite sure cigarette end not start Retell the story 6.This morning accidentally the cause 7.remains snake wires power line 8.explanation simple unusual 9.bird snatched up dropped on to 10.When wound sent sparks started Summary Challenge Now that firefighters have put out... There was no evidence... However, a firefighter... Fire Safety at Home What Caused the Fire Role play News Reporter Live! Student A——— Journalist Student B——— Fireman Ep:We've discovered that... Thank you!
