YellowstoneWeather
YellowstoneNationalParkisathighaltitude(海拔).Mostoftheparkisabove7500feet(2275meters).
Yellowstone'sweatherisunpredictable.Insummeritmaybewarmand.sunnywithtemperaturesinthehigh70s.Atnightinanygivenmonththetemperaturemaydropclosefreezing.Soitisbesttocomepreparedforcoldeveningsandmorningsespeciallyifyouarecampingorhiking.Whenyouleaveyourcampsitepleaseleaveitpreparedforpossiblethundershowersandwind.
Asunnywarmdaymaybecomefiercelystormywithwindrainsleetandsometimessnow.Withoutenoughclothinganeasydayhikeorboattripcanturnintoabattleforsurvival.
72.Theauthorwritesthispassagemostprobablyforthosewhoplanto____inYellowstoneNationalPark.
A.doresearchwork. B.takeabusinesstrip.
C.havesportsgames D.spendtheirholidaysortakeatour
73.WhichofthefollowingbestdescribesYeltowstone'sweather?
A.Yellowstone'sweatherisgenerallychangeableanditsnowsmostattheyear.
B.It'sneithertoohotinsummernortoocoldinwinter.
C.Weatherinfallispleasantandtemperaturesneverfallbelowfreezing.
D.It'sprettywarminthedayandverycoolatnightthroughouttheyear.
74.IfyouareplanningtospendyourholidaysinYeilowstoneNationalParkinsummerwhatshouldyoutakewithyou?
A.JustsomelightclothingsuchasT-shirtsorskirts.
B.Justsomewarmclothingsuchassweatersandcoats.
C.Bothlightclothingandwarmclothing.
D.Eitherlightclothingorwarmclothing.
75.Whatdoestheunderlinedword"readings"referto?
A.literatureworks B.books
C.announcements D.figures