高考英语一轮复习 unit5 first aid导学案 新人教版必修5 (2)

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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;itpreventsyourbodyfromlosin

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

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

4、mildsunburnandburnscausedby_______5________(touch)ahotpan,stoveorironforamoment.●SeconddegreeburnsTheseaffectboththetopandthesecondlayeroftheskin.Theseburnsareseriousandtakeafewweekstoheal.Examplesincludeseveresunburnandburnscausedbyhotliquids.●ThirddegreeburnsTheseaffectallthreelayersoftheskinandan

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

6、s●rough,redandswollen●blisters●waterysurface●extremelypainfulThirddegreeburns●blackandwhiteandcharred●swollen;oftentissueunderthemcanbeseen●littleornopainifnervesaredamaged;maybepainaroundedgeofinjuredarea.Firstaidtreatment1.Removeclothingusingscissorsifnecessary_______7_____itisstucktotheburn.Takeo

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