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2019-2020学年度人教版必修五Unit5FirstaidPeriod1ReadingPre-reading1.Lookatthepicture.Whathashappened?2.Whatkindoffirstaidwouldyouperforminthissituation?3.Haveyouorsomeoneyouknoweverbeenburned?Whathappened?Whatdidtheburnlooklike?Didanyoneperformfirstaid?Whatdidhe/shedo?Thinking:Firstaidforburns•_____thethreetypesofburns•_____whattodoifsomeonegetsburned•_____thepurposeofskin•_____thesymptomsofburns•_____howwegetburnsInwhichorderarethesetopicscoveredinthetext?Numberthemfromfrom1to5.seconddegreeburnfirstdegreeburnthirddegreeburn3.Readthefirstaidtreatmentsfortheseburns.Ifthetreatmentisright,writeRinthebrackets.Ifitiswrong,writeWinthebracketsandexplainwhy.Thengivethecorrecttreatment.1.Samknockedoverakettlefullofboilingwaterontohislegs.Hislegsbecamered,swollenandcoveredwithblisters.Sambroketheblistersandpouredicywatersfromthefridgeontotheskin.()W2.Whileironingclothes,MissGoodaccidentallytouchedtheiron.Herwristblisteredandbecamewatery.Ithurtalot.Sheputherwristunderthecoldwatertapandthenkeptplacingcool,clean,dampclothsonituntilitwaslesspainful.Thenshewenttoseethedoctor.()R3.MrsCasey’ssleevecaughtfirewhileshewascooking.Herarmlookedterriblebutitdidn't’thurt.Theskinwascharred.Herhusbandtookoffherblouseandpickedoffbitsoftheblousestucktotheburn.Hethenplacedbutterontheburnandcovereditwithawetbandage.()W4Afteranhourinthesun,lilynoticedherarmswereredandhurtabit.Shewenthomeandputthemundercoolrunningwater.()REx.4.Answerthefollowingquestions.1.Whyshouldyouputcoldwateronaburn?Becausethecoldwaterstopstheburningprocess,stopthepainandreducestheswelling.2.Whydoesn't’tathirddegreeburnhurt?Becauseinathirddegreeburnthenerveshavebeendamaged.Iftherearenonerves,thereisnopain.3.Whydoyouthinkclothesandjewellerynearburnsshouldberemoved?Becausebacteriafromtheclothesandjewellerycouldinfecttheburns.4.Ifsomeonehasathirddegreeburn,whymightyouseetissue?Becauseallthelayersoftheskinhavebeenburnshowingthetissueunderneath.