If you live in an apartment building，you'll want to know the best way to the stair or other emergency exits.If you're in a room with the door closed when the fire breaks out，you need to take a few extra steps：

　　• Check to see if there's heat or smoke coming in the cracks(裂缝) around the door.

　　• If you see smoke coming under the door—don't open the door!

　　• If you don't see smoke—touch the door.If the door is hot or very warm—don't open the door!

　　• If you don't see smoke—and the door is not hot—then use your fingers to lightly touch the doorknob(门把手)．If the doorknob is hot or very warm—don't open the door!

　　• If the doorknob feels cool，and you can't see any smoke around the door，you can open the door very carefully and slowly.When you open the door，if you feel a burst of heat，or smoke pours into the room，quickly shut the door and make sure it is really closed.If there's no smoke or heat when you open the door，go toward your escape route exit.

　　【语篇解读】　如果不慎发生火灾，你将如何逃生？作者给出了逃生的5条建议。

　　25．The best title for the passage is ________．

　　A．How to make an escape plan and an escape route

　　B．Steps on how to escape a fire in a room with the door closed

　　C．The best way to find the stair or other emergency exits

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