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    If you are lost in the mountains, stay calm in the face of darkness, loneliness, and the unknown. It will greatly increase your chances of survival (生存). Many people think that preparing necessary equipment and knowing how to use it are very important, but actually eighty percent of mountain survival is your reaction to fear.
    Find a hiding place.
    Unnecessary labor will make you sweat and make you cold. Find a hiding place around you before trying to start your own construction. If you are in a snow-covered area, you may be able to dig a cave in deep snow for protection from the wind. You should try to hide yourself in the middle of the mountain if possible. Stay out of the valleys — cold air falls, and the valley floor can be the coldest area on the mountain.
    Signal rescuers for help.
    The best time to signal rescuers is during the day. Signal for help from the highest point possible — it will be easier for rescuers to see you, and any sound you make will travel farther. If you take a box of matches and a space blanket (a special blanket for traveling), build three smoky fires and put your blanket — gold side facing out — on the ground.
    Do not walk away.
    It will make finding you more difficult, as search teams will be trying to follow your path and may miss you if you have gone off in a different direction. Searchers often end up finding a car with no one in it.
    If you get frostbite (冻伤), do not rewarm the affected area until you’re out of danger.
    You can walk on frostbitten feet, but once you warm the area and can feel the pain, you will not want to walk anywhere. Try to protect the frostbitten area and keep it dry until you are rescued.
    36. When lost in the mountains, you can increase your chances of survival if you      .
    A. take a space blanket with you            B. do more physical labor
    C. try to find a car immediately                    D. walk as far as possible to find help
    37. According to the passage, people most probably fail to survive if they      .
    A. do not take enough equipment           B. stay in the middle of the mountain
    C. do not keep themselves warm            D. stay in a snow-covered area
    38. What can we infer from the passage?
    A. Don’t travel by yourself.                   B. Mountain traveling is dangerous.
    C. Don’t get frightened in danger.          D. Avoid going to unfamiliar places.

    36---38   ACC  

    36.解析：这是一道判断题。全文介绍了增加生存机会的方法，与选项对照A符合。B和D在第二段第一句“Unnecessary labor will make you sweat and make you cold”就可看出是不符合的。C项根本没有提到，也不符合。
    37．解析：这是一道判断题。A是大多数人认为死亡的原因，而不是文中讲到的实际原因，因此不对；B是文中讲到能够生存的一种方法，因此也不对；D并不是死亡的必然原因，因此也不对。因此选C。
    38．解析：这是一道主旨题。从第一段最后一句“but actually eighty percent of mountain survival is your reaction to fear”可知，B正确。
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