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《first aid》课件25(人教版必修5).ppt

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1、Pre-reading,Questions for the picture:,1. What has happened?,2. What sort of injury will the girl have?,3. What kind of first aid would you perform in this situation?,Cool the area of skin; wash it under the cold running water. Cover the wound with bandage/clean cloth. See a doctor if necessary.,R,e

2、,a,d,i,n,g,The text are divided into five parts. In which order are these topics covered? Number them from 1 to 5.,_ the three types of burns_ what to do if someone gets burned_ the functions of the skin_ the symptoms of burns_ how we get burns,3,5,1,4,2,Skimming:,R,e,a,d,i,n,g,Read the text for det

3、ails:,1. What can skin do for our body? (P1), protect you against diseases, poisons and the suns harmful rays keep you warm or cool prevent you from losing water give you sense of touch,2. How can we get burnt? (P2),R,e,a,d,i,n,g,You can get burnt by : _,hot liquidssteamfireradiationthe sunelectrici

4、ty and chemicals,Causes of burns,3. How many types of burns? (P3),4. What are the characteristics of different burns? (P4),red light swollen,red, swollenblisters,tissue can be seenswollen,R,e,a,d,i,n,g,The third reading for discussion (P4 & P5):,Why should you put cold water on a burn?,2. Why doesnt

5、 a third degree burn hurt?,3. Why do you think clothes and jewelery near burns should be removed?,4. If someone has a third degree burn, why might you see tissue?,R,e,a,d,i,n,g,Answer the questions,Why should you put cold water on a burn?2. Why doesnt a third degree burn hurt?,The cool water stops t

6、he burning process, stops the pain and prevents or reduces swelling.,Because the nerves are damaged. If there are no nerves, there is no pain.,3. Why do you think clothes and jewellery near burns should be removed?4. If someone has a third degree burn, why might you see tissue?,Because bacteria from the clothes and jewellery could infect the burns.,Because all layers of the skin have been burnt showing the tissue underneath.,

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