漢浯提示：請寫一篇150字左右的文章，說明發生火災時如何逃生。
[寫作導航]高樓大廈給火險逃生帶來隱患，如何逃生值得探討；其實事先防範很重要，這包括檢查火災緊急出口，弄清滅火器的位置及用法等；萬一發生火災也要冷靜，可撥打火警電話、避免煙燻、不上電梯、懸掛標誌求救等；只要有所準備，就能應對火災。
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火災逃生之法(how to survive in a fire accident)
many people now rive and work in very tart buildings. it is often not so easy to get away from these buildings in an emergency, resulting in great toss of lives. so how to survive in case of a fire is a problem concerning all those involved.
no one knows for sure when a fire witt happen, so it is extremely necessary to make preparations before a fire starts. check the fire escape in advance and make sure that you can find it in the dark when lights have failed. find out where the nearest fire extinguisher is and read the instructions to learn how to use it.
don't lose your head if unfortunately a fire breaks out. first, telephone the fire department immediately when the fire just gets started. take care not to be overcome by smoke, which containing monoxide gas, can kill you quickly. cover your mouth with a wet towel or a wet cloth, and avoid getting into the smoke. don't get in an elevator, as you may get trapped if the electricity fails. if you can not get away by yourself, it is of great importance to hang something out of the window to attract attention as a sign of asking for help.
in short, if you make preparations before hand and take precautions during the fire, chances are that you will survive in case of a fire if it really breaks out some day.