Revision of Lesson 25What did Carl feel in San Francisco at the time of the big earthquake in 1989?* First he heard a noise.* Then he felt the floor move. * And then he watched all the glasses fall off onto the floor. Lesson 26\27 EarthquakesLead-in Questions:I. Have you ever heard about an earthquake? What happened in that earthquake? The most terrible earthquake happened in China is Tang Shan’s Earthquake in 1976. A great part of the city was destroyed, a large number of buildings were burnt. About 276,000 people died in the earthquake, the fire and the plague (瘟疫) after it. Pre-reading Questions: I. How many people were killed during the earthquake of 1989 in the city of San Francisco? II. When the scientists call the earthquake “The Big One”, what do they mean? Earthquakes (1) 1. At 5:13 on the morning of April 18th, 1906, the city of San Francisco was shaken by a terrible earthquake. A great part of the city was destroyed a large number of buildings were burnt. The number of people who lost homes reached as many as 250,000. About 700 people died in the earthquake and the fire.2. Another earthquake shook San Francisco on October 17th, 1989. It was America’s second strongest earthquake and about 100 people were killed. It happened in the evening as people were traveling home. A wide and busy road which was built like a bridge over another road fell onto the one below. Many people were killed in their cars, but a few lucky ones were not hurt.3. Luckily the 1989 earthquake did not happen in the center of town but about 50 kilometers away. In one part of the town a great many buildings were destroyed. These buildings were over 50 years old, so they were not str...