阅读理解。Ifyouarelostinthemountainsstaycalminthefaceofdarknesslonelinessandtheunknown.Itwillgreatlyincreaseyourchancesofsurvival(生存).Manypeoplethinkthatpreparingnecessaryequipmentandknowin

　　阅读理解。

　　Ifyouarelostinthemountainsstaycalminthefaceofdarknesslonelinessandtheunknown.Itwill

　　greatlyincreaseyourchancesofsurvival(生存).Manypeoplethinkthatpreparingnecessaryequipmentand

　　knowinghowtouseitareveryimportantbutactuallyeightypercentofmountainsurvivalisyourreactionto

　　fear.

　　Findahidingplace

　　Unnecessarylaborwillmakeyousweatandmakeyoucold.Findahidingplacearoundyoubeforetrying

　　tostartyourownconstruction.Ifyouareinasnow-coveredareayoumaybeabletodigacaveindeep

　　snowforprotectionfromthewind.Youshouldtrytohideyourselfinthemiddleofthemountainifpossible.

　　Stayoutofthevalleys-coldairfallsandthevalleyfloorcanbethecoldestareaonthemountain.

　　Signalrescuersforhelp

　　Thebesttimetosignalrescuersisduringtheday.Signalforhelpfromthehighestpointpossible-itwillbe

　　easierforrescuerstoseeyouandanysoundyoumakewilltravelfarther.Ifyoutakeaboxofmatchesand

　　aspaceblanket(aspecialblanketfortraveling)buildthreesmokyfiresandputyourblanket-goldsidefacing

　　out-ontheground.

　　Donotwalkaway

　　Itwillmakefindingyoumoredifficultassearchteamswillbetryingtofollowyourpathandmaymiss

　　youifyouhavegoneoffinadifferentdirection.Searchersoftenendupfindingacarwithnooneinit.

　　Ifyougetfrostbite(冻伤)donotrewarmtheaffectedareauntilyou'reoutofdanger.

　　Youcanwalkonfrostbittenfeetbutonceyouwarmtheareaandcanfeelthepainyouwillnotwantto

　　walkanywhere.Trytoprotectthefrostbittenareaandkeepitdryuntilyouarerescued.

　　1.Whenlostinthemountainsyoucanincreaseyourchancesofsurvivalifyou _____.

　　A.takeaspaceblanketwithyou

　　B.domorephysicallabor

　　C.trytofindacarimmediately

　　D.walkasfaraspossibletofindhelp

　　2.Accordingtothepassagepeoplemostprobablyfailtosurviveifthey_____.

　　A.donottakeenoughequipment

　　B.stayinthemiddleofthemountain

　　C.donotkeepthemselveswarm

　　D.stayinasnow-coveredarea