单选题Questions 7-10 are based on the following monologue.
单选题
Why should one crawl on the floor to a door if he finds himself in a burning room?
【正确答案】
A
【答案解析】[听力原文]
You should be careful with fires. People who are not careful sometimes cause fires that burn buildings or forests. If you are ever in a building, crawl on the floor to a door and get out. The smoke and heat from the fire are in the upper part of a room. The air near the floor is cooler and fresher.
If your clothing gets on fire, roll on the ground or wrap yourself in a blanket to shut out the air. With no air, the fire will go out.
Firemen sometimes put out fires by spraying water on them. The water cools the burning material so that the fire goes out.
单选题
What should one do when his clothes catch fire?