人教版（2019）选择性必修第二册Unit 5 First Aid Reading and Thinking 课件(共15张PPT).pptx

Unit5Firstaid;Learningaims:;Self-learningguidanceI(5’);FIRSTAIDFORBURNS

1.Theskinisanessentialpartofyourbodyandisitslargestorgan.Yourskinactsasabarrieragainstdisease,toxins,andthesunsrays.

2.Italsohelpscontrolyourbodytemperature,preventsyourbodyfromlosingtoomuchwater,warnsyouwhenthingsaretoohotorcold,andgivesyouyoursenseoftouch.

3.Asyoucanimagine,gettingburtcanleadtoveryseriousinjuries.Thefirstandmostimportantstepinthetreatmentofburnsisgivingfirstaid.

;Italsohelpscontrolyourbodytemperature,preventsyourbodyfromlosingtoomuchwater,warnsyouwhenthingsaretoohotorcold,andgivesyouyoursenseoftouch.

本句是一个复合句，句中helps,prevents,warns和gives是and连接的四个并列谓语。whenthingsaretoohotorcold是when引导的时间状语从句，修饰动词warns。

;皮肤是人体必不可少的一部分，也是人体最大的器官。皮肤充当着一道屏障的作用，能阻挡疾病、毒素和太阳光线的侵入。皮肤还有助于控制体温，防止身体流失过多的水分，在外物过热或过冷时发出警告，并使你拥有触觉。正如你能想象的，灼伤会造成严重后果。在处理烧伤时，第一步也是最重要的一步就是采取急救措施。;Self-learningguidanceII(5’);CAUSESOFBURNS

Youcangetburntbyavarietyofthings:hotliquids,steam,fire,radiationthesun,electricity,acidsorotherchemicals.

TYPESOFBURNS

Burnsaredividedintothreetypes,dependingonthedepthofskindamage.

First-degreeburnsTheseaffectonlythetopfewmillimetresoftheskin.Theseburnsarenotserious.Examplesincludemildsunburnandburnscausedbyotherminorhouseholdincidents.

Second-degreeburnsThesegobelowthetoplayeroftheskin.Theyareseriousandtakeafewweekstogetbetter.Examplesincludeburnscausedbyhotliquids.

;Third-degreeburnsTheseaffecteverylayeroftheskin,andsometimesthetissueunderit.Examplesincludeburnscausedbyelectricshocks,burningclothes,orpetrolfires.Theseburnscauseverysevereinternalinjuriesandthevictimmustgotothehospitalatonce.;烧伤的原因:

各种各样东西都会造成烧伤:灼热的液体、蒸汽、明火、辐射、太阳光、电流、酸性物质或其他化学品。

烧伤的种类:根据