PM2.5主要来自化石燃料、生物质、垃圾的焚烧，为了控制污染，要求我们节约及高效利用能源．关于能源和能量，下列说法中正确的是（  ）

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    Things can become very dangerous in a fire. 1 will you do if you cannot get out of the room?

    If you cannot get out of the room, close the door and put blankets (毛毯) at the 2 of the door. They can 3 the smoke from coming in.

    And 4 119 for help. Then open the window and 5 for help. Wave (摇摆) a piece of cloth from the window. Let people know that you are still inside the room.

    Don't stay under the bed or in the wardrobe. When the firefighters come in, they will have to 6 you. So stay by the window.

    If your clothes 7 fire, remember the words: stop, drop and roll.

    Stop running. Moving around will make the fire even 8. Drop and lie down on the floor. Roll around, from one side to 9 to stop the fire.

    If your friend's clothes are on fire, don't let him or her 10. Shout, "Stop, drop and roll!" When he or she is rolling on the floor, you can use a blanket or other heavy cloth to help to put out the fire on his or her clothes.

A

    An Englishman was showing a foreign visitor around London.“What's that strange building?” asked the visitor.“That's the Tower (塔) of London.”“I see. How long did it take to build it?”“About 500 years.”“In my country we can build it in a few months.”said the visitor. After they came to St. Paul's Cathedral (大教堂), the visitor asked the same question. “Nearly forty years,”said the Englishman. “In my country we finish it in forty days at most,” said the visitor. This went on all day. They visited most of the best known buildings in the city. Every time they saw a new one, the visitor asked what it was and how long it took to build it. Then he said they could do the same thing much faster in his country. At last the Englishman got angry with the visitor though he tried not to show it. Several days later they came to the House of Parliament (议会) and the visitor asked his usual question, “What's that?” The Englishman answered, “I have no idea. It wasn't there last night.”

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