单子.doc

IV. Fill in the blanks .
The functions of the skin
It acts as a(n) 1. against disease,poisons and the sun’s harmful rays.
▲Keeping you warm or cool
▲2. ____ your body from losing too much water.
▲Giving you your sense of 3. .
The causes of the burns
Hot liquids, steam, fire, 4. ,the sun, electricity or chemicals.
Three types of burns
first degree burns
◆ dry, red and mildly
◆ mildly painful
◆ turn
6. Turn white when_______
Second degree burns
◆ rough, red and swollen
◆ blisters
◆ 7. ________ surface
◆ extremely painful
Third degree burns
◆ black and white and charred
◆ swollen; often 8. ______ under them can be seen
◆ little or no pain if nerves are damaged; may be pain around of injured area
First aid treatment for burns
clothing.
For first degree burns:
Place cool, clean, wet cloths on them until the pain is not so bad.
Cool burns immediately
For second degree burns:
Place cool cloths on the burned area over and over again for about 11. _________
Dry the burned area gently
For third degree burns:
Don’t put 12. ______ on the burned area.
Cover the burned area with a dry, clean 13. ________ .
Note:
▲Keep burned arms or legs 14_________than the heart.
▲Send the victim with second or third degree burns to the15
at once.
II. Retell the passage
The skin is an essential part of our body and it is an, but