高考英语一轮复习 unit5 first aid导学案 新人教版必修5

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1、河北省武邑中学2016届高考英语一轮复习Unit5Firstaid导学案新人教版必修5FIRSTAIDFORBURNSTheskinis___1____essentialpartofyourbodyanditslargestorgan.Youhavethreelayersofskin____2______actasabarrieragainstdisease,poisonsandthesun’sharmfulrays.Thefunctionsofyourskinarealsoverycomplex:itkeepsyouwarmorcool;itpreventsyourbodyfromlos

2、ingtoomuchwater;itiswhereyoufeelcold,heatorpainanditgivesyouyoursenseoftouch.Soasyoucanimagine,ifyourskingets_____3_____(burn)itcanbeveryserious.Firstaidisveryimportantfirststepinthetreatmentofburns.CausesofburnsYoucangetburnedbyavarietyofthings:hotliquids,steam,fire,radiation(bybeingclosetohighhe

3、atorfire,etc),thesun,electricityorchemicals.TypesofburnsTherearethreetypesofburns.Burns_____4_______(call)first,secondorthirddegreeburns,dependingonwhichlayersoftheskinareburned.●FirstdegreeburnsTheseaffectonlythetoplayeroftheskin.Theseburnsarenotseriousandshouldfeelbetterwithinadayortwo.Examplesi

4、ncludemildsunburnandburnscausedby_______5________(touch)ahotpan,stoveorironforamoment.●SeconddegreeburnsTheseaffectboththetopandthesecondlayeroftheskin.Theseburnsareseriousandtakeafewweekstoheal.Examplesincludeseveresunburnandburnscausedbyhotliquids.●ThirddegreeburnsTheseaffectallthreelayersofthes

5、kinandanytissueandorgansundertheskin.Examplesincludeburns_____6_____(cause)byelectricshocks,burningclothes,orseverepetrolfires.Theseburnscauseverysevereinjuriesandthevictimmustgotohospitalatonce.CharacteristicsofburnsFirstdegreeburns●dry,redandmildlyswollen●mildlypainful●turnwhitewhenpressedSecond

6、degreeburns●rough,redandswollen●blisters●waterysurface●extremelypainfulThirddegreeburns●blackandwhiteandcharred●swollen;oftentissueunderthemcanbeseen●littleornopainifnervesaredamaged;maybepainaroundedgeofinjuredarea.Firstaidtreatment1.Removeclothingusingscissorsifnecessary_______7_____itisstucktot

7、heburn.Takeoffotherclothingandjewelleryneartheburn.2.Coolburns_________8_______(immediate)withcoolbutnoticywater.Itisbesttoplaceburnsundergentlyrunningwaterforabout10minutes.(Thecoolwaterstopstheburningprocess,pr