Nobody died in Pakistan, a country next to India. The city of Lahore was lucky. In Lahore American School, all of the students were safe. They were on the fields, so most children didn't feel anything. The teachers on the second floor felt the earthquake. Although Mrs. Young was also on the second floor, she didn't feel anything. She didn't know what happened until a teacher told her about it. Those teachers on the other floors had different feelings. Mr. Emond, the maths teacher from Australia, said that when the earthquake started, he thought there was something wrong with him. But then another teacher said that it was an earthquake. After those words, Mr. Emond felt better. Mrs David and Frost didn't feel anything, either.
My mother didn't feel anything. She didn't even know that it was an earthquake till she saw a shaking light. My father saw the computer shaking and then he looked out of the window and saw many people going out.
21．People use “Richer scale” to tell________.
A．where the earthquake takes place
B．when the earthquake takes place
C．how serious the earthquake is
D．how long the earthquake lasts
答案：C 猜测词义题。该句大意是：人们使用里氏等级来说明地震的危害是多么严重。
