高二英语课件（新人教必修5）Unit5 第2课时.ppt

Readingwashitunderthecoldrunningwater.Coverthewoundwithbandage/cleancloth.Seeadoctorifnecessary.,Makealist,FirstAidforBurns,Letsread,andcheckyourideas.,Pre-reading,Whatwillthepassagebeabout?2.Whatdotheytellyouaboutthepassage?,Firstaidforburns.,Causes,types,characteristicsandfirstaidtreatmentforburns.,skinorganbarrierpoisonraycomplexvarietyliquid,n.皮;皮肤n.器官n.屏障;障碍物n.毒药;毒害vt.毒害;使中毒n.光线;射线adj.复杂的n.变化;多样化n.液体,Wordspreview,radiationmildmildlypanstovetissueswell,n.辐射;射线adj.轻微的;温和的adv.轻微地;温和地n.平底锅;盘子n.炉子;火炉n.组织;手巾纸vt.隆起,scissorsunbearablebasinbandagevital,n.剪刀adj.难以忍受的n.盆;盆地n.绷带adj.至关重要的；生死攸关的,electricshocksqueezeoutoverandoveragain,触电;电休克榨出;挤出反复;多次,Expressionspreview,FastReading,Inwhichorderarethesetopicscoveredinthetext?Numberthemfrom1to5.,_thethreetypesofburns_whattodoifsomeonegetsburned_thepurposeofskin_thesymptomsofburns_howwegetburns,3,5,1,4,2,Findouthowmanypartsthereareandthemainideaofeachpart:,Part1.Part2.Part3.Part4part5,Thepurpose/functionofskin,Causesofburns,Typesofburns:Firstdegreeburns,Seconddegreeburns,Thirddegreeburns,Characteristicsofburns,Firstaidtreatment,hotliquids,steam,fire,radiation,thesun,electricity,chemicals,Labelthesepictureswithfirstdegreeburn,seconddegreeburnandthirddegreeburn.,A_,B_,C_,firstdegreeburn,seconddegreeburn,thirddegreeburn,CarefulReading,Affectonlythetoplayeroftheskin.,Seconddegreeburns,Thirddegreeburns,mildsunburn,burnscausedbytouchingahotpanorironforamoment,Severesunburn,burnscausedbyhotliquids,Affectallthreelayersoftheskinandanytissueandorgansundertheskin.,Howmanytypesofburnsandwhatarethey?,FirstdegreeBurnsSeconddegreeburnsThirddegreeburns,type,1.Getthevictimtothedoctororhospital,Treatment,3.Placecool,clean,wetclothesonthemuntilthepainisnotsobad.,2.Keepclothscoolbyputtingthembackinthecoldwater;squeezingthemoutandplacingthemontheburnedareaoverandoveragainforaboutanhouruntilthepainisnotsobad.,1.Whyshouldyouputcoldwateronaburn?2.Whydoesntathirddegreeburnhurt?3.Whydoyouthinkclothesandjewellerynearburnsshouldberemoved?4.Ifsomeonehasathirddegreeburn,whymightyouseetissue?,Questions,1.Whyshouldyouputcoldwateronaburn?2.Whydoesntathirddegreeburnhurt?,Becausethecoldwaterstoptheburningprocess,stopthepainandreducestheswelling.,Becauseinathirddegreeburnthenervesaredamaged.Iftherearenonerves,thereisnopain.,3.Whydoyouthinkclothesandjewellerynearburnsshouldberemoved?4.Ifsomeonehasathirddegreeburn,whymightyouseetissue?,Becausethismaybreakanyblistersandthewoundmaygetinfected.,Becausetheseaffectallthreelayersoftheskinandanytissueandorgansundertheskin.,Ourskinhasthreelayers.Wewillnevergetburnedbythesun.Burnsaredividedintothreedegreesaccordingtothedegreeofpain.Thirddegreeburnsarethemostseriousandpainful.,T,F,F,1.Tellifthefollowingstatementsaretrueorfalse:,F,5.Putcoolwateronanyburnstocoolthem.6.Dontrubtheburns7.Itsbetterthatyouputsomebutteroroilonburns.8.Ifapersongetsathirddegreeburn,hemustcoolburnsimmediatelywithcoolbutnoticywaterandthengotoseeadoctor.,T,F,T,F,1.Samknockedoverakettlefullofboilingwaterontothislegs.Hislegsbecamered,swollenandcoveredwithblisters.Sambroketheblistersandpouredicywaterfromthefridgeontotheskin.(),W,4.Discussingroupsoffourtoseewhetherthefollowingisrightorwrong.Ifitswrong,explainwhyandgivethecorrectstatement.,2.Whileironingclothes,MissGoodaccidentallytouchedtheiron.Herwristblisteredandbecamewatery.Ithurtalot.Sheputherwristunderthecoldwatertapandthenkeptplacingcool,clean,dampclothsonituntilitwaslesspainful.Thenshewenttoseethedoctor.(),R,Discussingroupsoffourtoseewhetherthefollowingisrightorwrong.Ifitswrong,explainwhyandgivethecorrectstatement.,3.MrsCaseyssleevecaughtfirewhileshewascooking.Herarmlookedterriblebutitdidnthurt.Theskinwascharred.Herhusbandtookoffherblouseandpickedoffbitsoftheblousestucktotheburn.Hethenplacedbutterontheburnandcovereditwithawetbandage.(),W,4.Afteranhourinthesun,Lilynoticedherarmswereredandhurtabit.Shewenthomeandputthemundercoolrunningwater.(),R,Homework,Reviewthetextcarefullyandfinishthecomprehendingonpage35.Findouttheimportantanddifficultwordsandexpressionstoyouandfinishexercisesonpage36.3.Preview“LearningaboutLanguageDiscoveringusefulwordsandexpressions”.,1.Whyisskinveryimportanttoourbody?2.Whyshouldyouputcoldwateronaburn?3.Whydoesntathirddegreeburnthurtmuch?,Becauseskinprotectsusagainstdiseases,poisonsandthesunharmfulrays;keepsuswarmorcool；preventsourbodyfromlosingwater;itgivesyousenseoftouch.,Becausethecoolwaterstopstheburningprocess,stopsthepainandpreventsorreducesswelling.,Becausethenervesmaybedamaged